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https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe11/thumbs-ed1ch21pe11-00002.png Show that if two resistors R_1 and R_2 are combined and one is much greater than the other ( R_1 >> R_2 ): (a) Their series resistance is very nearly equal to the greater resistance R_1. (b) Their parallel resistance is very nearly equal to smaller resistance R_2. https://seo-videos.collegephysicsanswers.com/ch21/pe11/ed1ch21pe11.mp4 77 73 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-resistors-one-having-resistance-900-komega-are-connected-series-produce Two resistors, one having a resistance of 900 k \Omega , are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe13/thumbs-ed1ch21pe13-00002.png Two resistors, one having a resistance of 900 k \Omega , are connected in series to produce a total resistance of 0.500 M \Omega . (a) What is the value of the second resistance? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch21/pe13/ed1ch21pe13.mp4 128 20 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/refer-figure-217-and-discussion-lights-dimming-when-heavy-appliance-comes-given Refer to Figure 21.7 and the discussion of lights dimming when a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe09/thumbs-ed1ch21pe09-00002.png Refer to Figure 21.7 and the discussion of lights dimming when a heavy appliance comes on. (a) Given the voltage source is 120 V, the wire resistance is 0.400 \Omega , and the bulb is nominally 75.0 W, what power will the bulb dissipate if a total of 15.0 A passes through the wires when the motor comes on? Assume negligible change in bulb resistance. (b) What power is consumed by the motor? https://seo-videos.collegephysicsanswers.com/ch21/pe09/ed1ch21pe09.mp4 358 124 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/carbon-zinc-dry-cells-sometimes-referred-non-alkaline-cells-have-emf-154-v-and Carbon-zinc dry cells (sometimes referred to as non- alkaline cells)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe15/thumbs-ed1ch21pe15-00002.png Carbon-zinc dry cells (sometimes referred to as non- alkaline cells) have an emf of 1.54 V, and they are produced as single cells or in various combinations to form other voltages. (a) How many 1.54-V cells are needed to make the common 9-V battery used in many small electronic devices? (b) What is the actual emf of the approximately 9-V battery? (c) Discuss how internal resistance in the series connection of cells will affect the terminal voltage of this approximately 9-V battery. https://seo-videos.collegephysicsanswers.com/ch21/pe15/ed1ch21pe15.mp4 120 64 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0250-m-radius-500-turn-coil-rotated-one-fourth-revolution-417-ms-originally A 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe12/thumbs-ed1ch23pe12-00002.png A 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field. (This is 60 rev/s.) Find the magnetic field strength needed to induce an average emf of 10,000 V. https://seo-videos.collegephysicsanswers.com/ch23/pe12/ed1ch23pe12.mp4 191 271 4.5 2020-12-02 yes 2020-12-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-current-flows-satellite-tether-shown-figure-2312-use-faradays-law-lenzs-law If a current flows in the Satellite Tether shown in Figure 23.12, use… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe16/thumbs-ed1ch23pe16-00002.png If a current flows in the Satellite Tether shown in Figure 23.12, use Faraday’s law, Lenz’s law, and RHR-1 to show that there is a magnetic force on the tether in the direction opposite to its velocity. https://seo-videos.collegephysicsanswers.com/ch23/pe16/ed1ch23pe16.mp4 193 31 5 2020-12-06 yes 2020-12-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/group-students-attempting-determine-average-acceleration-marble-released-top A group of students is attempting to determine the average… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap06/thumbs-ed1ch02ap06-00002.png A group of students is attempting to determine the average acceleration of a marble released from the top of a long ramp. Below is a set of data representing the marble's position with respect to time. Use the data table above to construct a graph determining the acceleration of the marble. Select a set of data points from the table and plot those points on the graph. Fill in the blank column in the table for any quantities you graph other than the given data. Label the axes and indicate the scale for each. Draw a best-fit line or curve through your data points. Using the best-fit line, determine the value of the marble's acceleration. https://seo-videos.collegephysicsanswers.com/ch02/ap06/ed1ch02ap06.mp4 290 68 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nonferrous-screwdriver-being-used-200-t-magnetic-field-what-maximum-emf-can-be (a) A nonferrous screwdriver is being used in a 2.00 T magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe18/thumbs-ed1ch23pe18-00002.png (a) A nonferrous screwdriver is being used in a 2.00 T magnetic field. What maximum emf can be induced along its 12.0 cm length when it moves at 6.00 m/s? (b) Is it likely that this emf will have any consequences or even be noticed? https://seo-videos.collegephysicsanswers.com/ch23/pe18/ed1ch23pe18.mp4 117 31 4 2020-12-09 yes 2020-12-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tethered-satellite-figure-2312-has-mass-525-kg-and-end-200-km-long-250-mm The Tethered Satellite in Figure 23.12 has a mass of 525 kg and is at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe24/thumbs-ed1ch23pe24-00002.png The Tethered Satellite in Figure 23.12 has a mass of 525 kg and is at the end of a 20.0 km long, 2.50 mm diameter cable with the tensile strength of steel. (a) How much does the cable stretch if a 100 N force is exerted to pull the satellite in? (Assume the satellite and shuttle are at the same altitude above the Earth.) (b) What is the effective force constant of the cable? (c) How much energy is stored in it when stretched by the 100 N force? https://seo-videos.collegephysicsanswers.com/ch23/pe24/ed1ch23pe24.mp4 168 32 2020-12-10 yes 2020-12-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bicycle-generator-rotates-1875-rads-producing-180-v-peak-emf-it-has-100-300-cm (a) A bicycle generator rotates at 1875 rad/s, producing an 18.0 V… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe32/thumbs-ed1ch23pe32-00002.png (a) A bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.640 T field. How many turns are in the coil? (b) Is this number of turns of wire practical for a 1.00 by 3.00 cm coil? https://seo-videos.collegephysicsanswers.com/ch23/pe32/ed1ch23pe32.mp4 112 181 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-generator-turns-400-rpm-when-engine-idling-its-300-turn-500-800-cm (a) A car generator turns at 400 rpm when the engine is idling. Its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe34/thumbs-ed1ch23pe34-00002.png (a) A car generator turns at 400 rpm when the engine is idling. Its 300-turn, 5.00 by 8.00 cm rectangular coil rotates in an adjustable magnetic field so that it can produce sufficient voltage even at low rpms. What is the field strength needed to produce a 24.0 V peak emf? (b) Discuss how this required field strength compares to those available in permanent and electromagnets. https://seo-videos.collegephysicsanswers.com/ch23/pe34/ed1ch23pe34.mp4 146 79 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-resistance-flashlight-bulb-230-omega-and-it-run-158-v-alkaline-cell-having The hot resistance of a flashlight bulb is 2.30 \Omega , and it is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe21/thumbs-ed1ch21pe21-00002.png The hot resistance of a flashlight bulb is 2.30 \Omega , and it is run by a 1.58-V alkaline cell having a 0.100 \Omega internal resistance. (a) What current flows? (b) Calculate the power supplied to the bulb using I^2R_{bulb}. (c) Is this power the same as calculated using \dfrac{V^2}{R}? https://seo-videos.collegephysicsanswers.com/ch21/pe21/ed1ch21pe21.mp4 151 176 4.7 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/automobile-starter-motor-has-equivalent-resistance-00500-omega-and-supplied-120 An automobile starter motor has an equivalent resistance of 0.0500… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe23/thumbs-ed1ch21pe23-00002.png An automobile starter motor has an equivalent resistance of 0.0500 \Omega and is supplied by a 12.0-V battery with a 0.0100 \Omega internal resistance. (a) What is the current to the motor? (b) What voltage is applied to it? (c) What power is supplied to the motor? (d) Repeat these calculations for when the battery connections are corroded and add 0.0900 \Omega to the circuit. (Significant problems are caused by even small amounts of unwanted resistance in low-voltage, high-current applications.) https://seo-videos.collegephysicsanswers.com/ch21/pe23/ed1ch21pe23.mp4 169 121 4 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/make-drawing-similar-figure-2314-pendulum-moving-opposite-direction-then-use Make a drawing similar to Figure 23.14, but with the pendulum moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe26/thumbs-ed1ch23pe26-00002.png Make a drawing similar to Figure 23.14, but with the pendulum moving in the opposite direction. Then use Faraday’s law, Lenz’s law, and RHR-1 to show that magnetic force opposes motion. https://seo-videos.collegephysicsanswers.com/ch23/pe26/ed1ch23pe26.mp4 224 32 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-peak-emf-generated-rotating-1000-turn-200-cm-diameter-coil-earths-500times What is the peak emf generated by rotating a 1000-turn, 20.0 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe30/thumbs-ed1ch23pe30-00002.png What is the peak emf generated by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s 5.00 x 10^{-5} T magnetic field, given the plane of the coil is originally perpendicular to the Earth’s field and is rotated to be parallel to the field in 10.0 ms? https://seo-videos.collegephysicsanswers.com/ch23/pe30/ed1ch23pe30.mp4 152 122 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-turn-coil-0250textrm-m2-area-spun-earths-500times-10-5textrm-t-field A 500-turn coil with a 0.250 m ^2 area is spun in the Earth's 5.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe38/thumbs-ed1ch23pe38-00002.png A 500-turn coil with a 0.250 m ^2 area is spun in the Earth's 5.00 x 10^{-5} T field, producing a 12.0 kV maximum emf. (a) At what angular velocity must the coil be spun? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible? https://seo-videos.collegephysicsanswers.com/ch23/pe38/ed1ch23pe38.mp4 93 8 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/motor-operating-240-v-electricity-has-180-v-back-emf-operating-speed-and-draws A motor operating on 240 V electricity has a 180 V back emf at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe40/thumbs-ed1ch23pe40-00002.png A motor operating on 240 V electricity has a 180 V back emf at operating speed and draws a 12.0 A current. (a) What is its resistance? (b) What current does it draw when it is first started? https://seo-videos.collegephysicsanswers.com/ch23/pe40/ed1ch23pe40.mp4 87 46 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/motor-toy-car-operates-600-v-developing-450-v-back-emf-normal-speed-if-it-draws The motor in a toy car operates on 6.00 V, developing a 4.50 V back… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe42/thumbs-ed1ch23pe42-00002.png The motor in a toy car operates on 6.00 V, developing a 4.50 V back emf at normal speed. If it draws 3.00 A at normal speed, what current does it draw when starting? https://seo-videos.collegephysicsanswers.com/ch23/pe42/ed1ch23pe42.mp4 99 25 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/device-turned-and-300-flows-through-it-0100-ms-later-what-self-inductance-device A device is turned on and 3.00 A flows through it 0.100 ms later.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe58/thumbs-ed1ch23pe58-00002.png A device is turned on and 3.00 A flows through it 0.100 ms later. What is the self-inductance of the device if an induced 150 V emf opposes this? https://seo-videos.collegephysicsanswers.com/ch23/pe58/ed1ch23pe58.mp4 84 52 5 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-two-coils-placed-next-one-another-have-mutual-inductance-500-mh-what-voltage If two coils placed next to one another have a mutual inductance of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe56/thumbs-ed1ch23pe56-00002.png If two coils placed next to one another have a mutual inductance of 5.00 mH, what voltage is induced in one when the 2.00 A current in the other is switched off in 30.0 ms? https://seo-videos.collegephysicsanswers.com/ch23/pe56/ed1ch23pe56.mp4 64 61 4.7 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-terminal-voltage-120-v-motorcycle-battery-having-0600-omega-internal (a) Find the terminal voltage of a 12.0-V motorcycle battery having a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe19/thumbs-ed1ch21pe19-00002.png (a) Find the terminal voltage of a 12.0-V motorcycle battery having a 0.600 \Omega internal resistance, if it is being charged by a current of 10.0 A. (b) What is the output voltage of the battery charger? https://seo-videos.collegephysicsanswers.com/ch21/pe19/ed1ch21pe19.mp4 150 126 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/camera-flashes-charge-capacitor-high-voltage-switching-current-through-inductor Camera flashes charge a capacitor to high voltage by switching the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe60/thumbs-ed1ch23pe60-00002.png Camera flashes charge a capacitor to high voltage by switching the current through an inductor on and off rapidly. In what time must the 0.100 A current through a 2.00 mH inductor be switched on or off to induce a 500 V emf? https://seo-videos.collegephysicsanswers.com/ch23/pe60/ed1ch23pe60.mp4 110 43 5 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-unknown-resistance-rx-placed-wheatstone-bridge-it-possible-balance-bridge When an unknown resistance R_x is placed in a Wheatstone bridge, it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe59/thumbs-ed1ch21pe59-00002.png When an unknown resistance R_x is placed in a Wheatstone bridge, it is possible to balance the bridge by adjusting R_3 to be 2500 \Omega. What is R_x if \dfrac{R_2}{R_1} = 0.625? https://seo-videos.collegephysicsanswers.com/ch21/pe59/ed1ch21pe59.mp4 116 35 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/plug-transformer-laptop-computer-puts-out-750-v-and-can-supply-maximum-current (a) The plug-in transformer for a laptop computer puts out 7.50 V and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe48/thumbs-ed1ch23pe48-00002.png (a) The plug-in transformer for a laptop computer puts out 7.50 V and can supply a maximum current of 2.00 A. What is the maximum input current if the input voltage is 240 V? Assume 100% efficiency. (b) If the actual efficiency is less than 100%, would the input current need to be greater or smaller? Explain. https://seo-videos.collegephysicsanswers.com/ch23/pe48/ed1ch23pe48.mp4 275 120 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-power-plant-generates-electricity-120-kv-its-old-transformer-once A large power plant generates electricity at 12.0 kV. Its old… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe50/thumbs-ed1ch23pe50-00002.png A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 335 kV. The secondary of this transformer is being replaced so that its output can be 750 kV for more efficient cross-country transmission on upgraded transmission lines. (a) What is the ratio of turns in the new secondary compared with the old secondary? (b) What is the ratio of new current output to old output (at 335 kV) for the same power? (c) If the upgraded transmission lines have the same resistance, what is the ratio of new line power loss to old? https://seo-videos.collegephysicsanswers.com/ch23/pe50/ed1ch23pe50.mp4 306 113 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/short-circuit-grounded-metal-case-appliance-occurs-shown-figure-2360-person A short circuit to the grounded metal case of an appliance occurs as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe54/thumbs-ed1ch23pe54-00002.png A short circuit to the grounded metal case of an appliance occurs as shown in Figure 23.60. The person touching the case is wet and only has a 3.00 k \Omega resistance to earth/ ground. (a) What is the voltage on the case if 5.00 mA flows through the person? (b) What is the current in the short circuit if the resistance of the earth/ground wire is 0.200 \Omega ? (c) Will this trigger the 20.0 A circuit breaker supplying the appliance? https://seo-videos.collegephysicsanswers.com/ch23/pe54/ed1ch23pe54.mp4 130 110 5 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/your-rl-circuit-has-characteristic-time-constant-200-ns-and-resistance-500textrm Your RL circuit has a characteristic time constant of 20.0 ns, and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe70/thumbs-ed1ch23pe70-00002.png Your RL circuit has a characteristic time constant of 20.0 ns, and a resistance of 5.00 M \Omega . (a) What is the inductance of the circuit? (b) What resistance would give you a 1.00 ns time constant, perhaps needed for quick response in an oscilloscope? https://seo-videos.collegephysicsanswers.com/ch23/pe70/ed1ch23pe70.mp4 86 61 4 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-value-inductance-should-be-used-if-200textrm-komega-reactance-needed What value of inductance should be used if a 20.0 k \Omega reactance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe80/thumbs-ed1ch23pe80-00002.png What value of inductance should be used if a 20.0 k \Omega reactance is needed at a frequency of 500 Hz? https://seo-videos.collegephysicsanswers.com/ch23/pe80/ed1ch23pe80.mp4 35 32 3.3 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequency-will-800-mf-capacitor-have-reactance-0250textrm-omega At what frequency will an 80.0 mF capacitor have a reactance of 0.250… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe82/thumbs-ed1ch23pe82-00002.png At what frequency will an 80.0 mF capacitor have a reactance of 0.250 \Omega? https://seo-videos.collegephysicsanswers.com/ch23/pe82/ed1ch23pe82.mp4 41 16 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-after-time-100-ms-current-situation-considered-example-239-will-be-0183 Verify that after a time of 10.0 ms, the current for the situation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe72/thumbs-ed1ch23pe72-00002.png Verify that after a time of 10.0 ms, the current for the situation considered in [Example 23.9](https://openstax.org/books/college-physics/pages/23-10-rl-circuits#fs-id1169738136126) will be 0.183 A as stated. https://seo-videos.collegephysicsanswers.com/ch23/pe72/ed1ch23pe72.mp4 77 14 5 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-fast-can-150-current-through-0250-h-inductor-be-shut-if-induced-emf-cannot How fast can the 150 A current through a 0.250 H inductor be shut off… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe66/thumbs-ed1ch23pe66-00002.png How fast can the 150 A current through a 0.250 H inductor be shut off if the induced emf cannot exceed 75.0 V? https://seo-videos.collegephysicsanswers.com/ch23/pe66/ed1ch23pe66.mp4 89 16 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/158-v-alkaline-cell-0200-omega-internal-resistance-supplying-850-load-what-its A 1.58-V alkaline cell with a 0.200 \Omega internal resistance is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe29/thumbs-ed1ch21pe29-00002.png A 1.58-V alkaline cell with a 0.200 \Omega internal resistance is supplying 8.50 A to a load. (a) What is its terminal voltage? (b) What is the value of the load resistance? (c) What is unreasonable about these results? (d) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch21/pe29/ed1ch21pe29.mp4 122 11 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-400-omega-galvanometer-250-mu-textrma-sensitivity-what Suppose you have a 40.0 \Omega galvanometer with a 25.0 \mu A … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe55/thumbs-ed1ch21pe55-00002.png Suppose you have a 40.0 \Omega galvanometer with a 25.0 \mu A sensitivity. (a) What resistance would you put in series with it to allow it to be used as a voltmeter that has a full-scale deflection for 0.500 mV? (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch21/pe55/ed1ch21pe55.mp4 108 10 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-characteristic-time-constant-250-mh-inductor-has-resistance-400textrm-omega (a) What is the characteristic time constant of a 25.0 mH inductor… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe74/thumbs-ed1ch23pe74-00002.png (a) What is the characteristic time constant of a 25.0 mH inductor that has a resistance of 4.00 \Omega ? (b) If it is connected to a 12.0 V battery, what is the current after 12.5 ms? https://seo-videos.collegephysicsanswers.com/ch23/pe74/ed1ch23pe74.mp4 120 155 5 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-emfs-cell-being-measured-potentiometer-if-standard-cells-emf-120-v-and What is the emf_s of a cell being measured in a potentiometer, if the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe57/thumbs-ed1ch21pe57-00002.png What is the emf_s of a cell being measured in a potentiometer, if the standard cell’s emf is 12.0 V and the potentiometer balances for R_x = 5.000 \Omega and R_s = 2.500 \Omega? https://seo-videos.collegephysicsanswers.com/ch21/pe57/ed1ch21pe57.mp4 103 38 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/250-h-inductor-has-100-current-turned-100-ms-what-voltage-induced-oppose-b-what A 25.0 H inductor has 100 A of current turned off in 1.00 ms. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe68/thumbs-ed1ch23pe68-00002.png A 25.0 H inductor has 100 A of current turned off in 1.00 ms. (a) What voltage is induced to oppose this? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible? https://seo-videos.collegephysicsanswers.com/ch23/pe68/ed1ch23pe68.mp4 137 2 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-exact-exponential-treatment-find-time-required-current-through-200-h (a) Using the exact exponential treatment, find the time required for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe78/thumbs-ed1ch23pe78-00002.png (a) Using the exact exponential treatment, find the time required for the current through a 2.00 H inductor in series with a 0.500 \Omega resistor to be reduced to 0.100% of its original value. (b) Compare your answer to the approximate treatment using integral numbers of \tau . (c) Discuss how significant the difference is. https://seo-videos.collegephysicsanswers.com/ch23/pe78/ed1ch23pe78.mp4 200 20 5 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-flows-when-600-hz-480-v-ac-source-connected-0250textrm-mutextrmf (a) What current flows when a 60.0 Hz, 480 V AC source is connected… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe84/thumbs-ed1ch23pe84-00002.png (a) What current flows when a 60.0 Hz, 480 V AC source is connected to a 0.250 \mu F capacitor? (b) What would the current be at 25.0 kHz? https://seo-videos.collegephysicsanswers.com/ch23/pe84/ed1ch23pe84.mp4 119 73 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-resistance-must-be-placed-series-250-omega-galvanometer-having-500-mu Find the resistance that must be placed in series with a 25.0 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe45/thumbs-ed1ch21pe45-00002.png Find the resistance that must be placed in series with a 25.0 \Omega galvanometer having a 50.0 \mu A sensitivity (the same as the one discussed in the text) to allow it to be used as a voltmeter with a 3000-V full-scale reading. Include a circuit diagram with your solution. https://seo-videos.collegephysicsanswers.com/ch21/pe45/ed1ch21pe45.mp4 106 32 3.5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-hz-160-v-source-produces-200-ma-current-when-connected-capacitor-what A 20.0 Hz, 16.0 V source produces a 2.00 mA current when connected to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe86/thumbs-ed1ch23pe86-00002.png A 20.0 Hz, 16.0 V source produces a 2.00 mA current when connected to a capacitor. What is the capacitance? https://seo-videos.collegephysicsanswers.com/ch23/pe86/ed1ch23pe86.mp4 72 38 5 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/recording-voltages-due-brain-activity-eeg-100-mv-signal-0500-hz-frequency In a recording of voltages due to brain activity (an EEG), a 10.0 mV… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe90/thumbs-ed1ch23pe90-00002.png In a recording of voltages due to brain activity (an EEG), a 10.0 mV signal with a 0.500 Hz frequency is applied to a capacitor, producing a current of 100 mA. Resistance is negligible. (a) What is the capacitance? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible? https://seo-videos.collegephysicsanswers.com/ch23/pe90/ed1ch23pe90.mp4 112 13 5 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-resistance-must-be-placed-parallel-250-omega-galvanometer-having-500-mu Find the resistance that must be placed in parallel with a 25.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe47/thumbs-ed1ch21pe47-00002.png Find the resistance that must be placed in parallel with a 25.0 \Omega galvanometer having a 50.0 \mu \Omega sensitivity (the same as the one discussed in the text) to allow it to be used as an ammeter with a 300-mA full-scale reading. https://seo-videos.collegephysicsanswers.com/ch21/pe47/ed1ch21pe47.mp4 115 42 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/capacitor-figure-2355a-designed-filter-low-frequency-signals-impeding-their The capacitor in Figure 23.55(a) is designed to filter low- frequency… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe88/thumbs-ed1ch23pe88-00002.png The capacitor in Figure 23.55(a) is designed to filter low- frequency signals, impeding their transmission between circuits. (a) What capacitance is needed to produce a 100 k \Omega reactance at a frequency of 120 Hz? (b) What would its reactance be at 1.00 MHz? (c) Discuss the implications of your answers to (a) and (b). https://seo-videos.collegephysicsanswers.com/ch23/pe88/ed1ch23pe88.mp4 168 53 3.7 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lc-circuit-consists-300-mh-inductor-and-500textrm-mutextrmf-capacitor-find-its An LC circuit consists of a 3.00 mH inductor and a 5.00 \mu F … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe94/thumbs-ed1ch23pe94-00002.png An LC circuit consists of a 3.00 mH inductor and a 5.00 \mu F capacitor. (a) Find its impedance at 60.0 Hz and 10.0 kHz. (b) Compare these values of Z with those found in [Example 23.12](https://openstax.org/books/college-physics/pages/23-12-rlc-series-ac-circuits#fs-id1169737723572) in which there was also a resistor. https://seo-videos.collegephysicsanswers.com/ch23/pe94/ed1ch23pe94.mp4 192 64 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rl-circuit-consists-400textrm-omega-resistor-and-300-mh-inductor-find-its An RL circuit consists of a 40.0 \Omega resistor and a 3.00 mH… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe92/thumbs-ed1ch23pe92-00002.png An RL circuit consists of a 40.0 \Omega resistor and a 3.00 mH inductor. (a) Find its impedance Z at 60.0 Hz and 10.0 kHz. (b) Compare these values of Z with those found in [Example 23.12](https://openstax.org/books/college-physics/pages/23-12-rlc-series-ac-circuits#fs-id1169737723572) in which there was also a capacitor. https://seo-videos.collegephysicsanswers.com/ch23/pe92/ed1ch23pe92.mp4 200 99 4 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-capacitance-do-you-need-produce-resonant-frequency-100-ghz-when-using-800 What capacitance do you need to produce a resonant frequency of 1.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe98/thumbs-ed1ch23pe98-00002.png What capacitance do you need to produce a resonant frequency of 1.00 GHz, when using an 8.00 nH inductor? https://seo-videos.collegephysicsanswers.com/ch23/pe98/ed1ch23pe98.mp4 66 18 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rlc-series-circuit-has-100textrm-komega-resistor-150textrm-mutextrmh-inductor-1 An RLC series circuit has a 1.00 k \Omega resistor, a 150 \mu H … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe104/thumbs-ed1ch23pe104-00002.png An RLC series circuit has a 1.00 k \Omega resistor, a 150 \mu H inductor, and a 25.0 nF capacitor. (a) Find the power factor at f = 7.50 Hz . (b) What is the phase angle at this frequency? (c) What is the average power at this frequency? (d) Find the average power at the circuit’s resonant frequency. https://seo-videos.collegephysicsanswers.com/ch23/pe104/ed1ch23pe104.mp4 195 27 5 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/receive-am-radio-you-want-rlc-circuit-can-be-made-resonate-any-frequency-between To receive AM radio, you want an RLC circuit that can be made to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe96/thumbs-ed1ch23pe96-00002.png To receive AM radio, you want an RLC circuit that can be made to resonate at any frequency between 500 and 1650 kHz. This is accomplished with a fixed 1.00 \mu H inductor connected to a variable capacitor. What range of capacitance is needed? https://seo-videos.collegephysicsanswers.com/ch23/pe96/ed1ch23pe96.mp4 97 104 3.5 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lowest-frequency-fm-radio-band-880-mhz-what-inductance-needed-produce-resonant The lowest frequency in the FM radio band is 88.0 MHz. (a) What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe100/thumbs-ed1ch23pe100-00002.png The lowest frequency in the FM radio band is 88.0 MHz. (a) What inductance is needed to produce this resonant frequency if it is connected to a 2.50 pF capacitor? (b) The capacitor is variable, to allow the resonant frequency to be adjusted to as high as 108 MHz. What must the capacitance be at this frequency? https://seo-videos.collegephysicsanswers.com/ch23/pe100/ed1ch23pe100.mp4 101 65 5 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/approximately-what-smallest-detail-observable-microscope-uses-ultraviolet-light Approximately what is the smallest detail observable with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe12/thumbs-ed1ch24pe12-00002.png Approximately what is the smallest detail observable with a microscope that uses ultraviolet light of frequency 1.20 x 10^{15} Hz ? https://seo-videos.collegephysicsanswers.com/ch24/pe12/ed1ch24pe12.mp4 48 46 5 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-radar-systems-detect-size-and-shape-objects-such-aircraft-and-geological Some radar systems detect the size and shape of objects such as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe14/thumbs-ed1ch24pe14-00002.png Some radar systems detect the size and shape of objects such as aircraft and geological terrain. Approximately what is the smallest observable detail utilizing 500-MHz radar? https://seo-videos.collegephysicsanswers.com/ch24/pe14/ed1ch24pe14.mp4 56 46 5 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/duration-photographic-flash-related-rc-time-constant-which-0100-mu-textrms The duration of a photographic flash is related to an RC time… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe65/thumbs-ed1ch21pe65-00002.png The duration of a photographic flash is related to an RC time constant, which is 0.100 \mu s for a certain camera. (a) If the resistance of the flash lamp is 0.0400 \Omega during discharge, what is the size of the capacitor supplying its energy? (b) What is the time constant for charging the capacitor, if the charging resistance is 800 k \Omega? https://seo-videos.collegephysicsanswers.com/ch21/pe65/ed1ch21pe65.mp4 55 94 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/after-two-time-constants-what-percentage-final-voltage-emf-initially-uncharged After two time constants, what percentage of the final voltage, emf,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe67/thumbs-ed1ch21pe67-00002.png After two time constants, what percentage of the final voltage, emf, is on an initially uncharged capacitor C , charged through a resistance R? https://seo-videos.collegephysicsanswers.com/ch21/pe67/ed1ch21pe67.mp4 76 90 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-wish-detect-details-size-atoms-about-1times-10-10textrm-m-electromagnetic If you wish to detect details of the size of atoms (about 1 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe16/thumbs-ed1ch24pe16-00002.png If you wish to detect details of the size of atoms (about 1 x 10^{-10} m ) with electromagnetic radiation, it must have a wavelength of about this size. (a) What is its frequency? (b) What type of electromagnetic radiation might this be? https://seo-videos.collegephysicsanswers.com/ch24/pe16/ed1ch24pe16.mp4 53 86 5 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-capacitance-needed-get-rc-time-constant-100-times-103-s-0100-omega (a) Calculate the capacitance needed to get an RC time constant of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe77/thumbs-ed1ch21pe77-00002.png (a) Calculate the capacitance needed to get an RC time constant of 1.00 x 10^3 s with a 0.100 \Omega resistor. (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch21/pe77/ed1ch21pe77.mp4 39 2 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2155-shows-how-bleeder-resistor-used-discharge-capacitor-after-electronic Figure 21.55 shows how a bleeder resistor is used to discharge a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe71/thumbs-ed1ch21pe71-00002.png Figure 21.55 shows how a bleeder resistor is used to discharge a capacitor after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. (a) What is the time constant? (b) How long will it take to reduce the voltage on the capacitor to 0.250% (5% of 5%) of its full value once discharge begins? (c) If the capacitor is charged to a voltage V_o through a 100 \Omega resistance, calculate the time it takes to rise to 0.865V_o (This is about two time constants.) https://seo-videos.collegephysicsanswers.com/ch21/pe71/ed1ch21pe71.mp4 237 134 4.7 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-exact-exponential-treatment-find-how-much-time-required-charge-initially Using the exact exponential treatment, find how much time is required… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe73/thumbs-ed1ch21pe73-00002.png Using the exact exponential treatment, find how much time is required to charge an initially uncharged 100-pF capacitor through a 75.0 M \Omega resistor to 90.0% of its final voltage. https://seo-videos.collegephysicsanswers.com/ch21/pe73/ed1ch21pe73.mp4 97 92 4.8 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/circuit-parallel-combination-six-16-ko-resistors-connected-series-parallel In a circuit, a parallel combination of six 1.6-kΩ resistors is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap03/thumbs-ed1ch21ap03-00002.png In a circuit, a parallel combination of six 1.6-kΩ resistors is connected in series with a parallel combination of four 2.4-kΩ resistors. The source voltage is 24 V. The circuit is modified by removing some of the 1.6 kΩ resistors, and the total current becomes 24 mA. How many resistors were removed? (a) 1(b) 2(c) 3(d) 4 https://seo-videos.collegephysicsanswers.com/ch21/ap03/ed1ch21ap03.mp4 196 4 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/circuit-parallel-combination-two-20-o-and-one-10-o-resistors-connected-series-4 In a circuit, a parallel combination of two 20-Ω and one 10-Ω… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap05/thumbs-ed1ch21ap05-00002.png In a circuit, a parallel combination of two 20-Ω and one 10-Ω resistors is connected in series with a 4-Ω resistor. The source voltage is 36 V. (a) Find the resistor(s) with the maximum current.(b) Find the resistor(s) with the maximum voltage drop.(c) Find the power dissipated in each resistor and hence the total power dissipated in all the resistors. Also find the power output of the source. Are they equal or not? Justify your answer.(d) Will the answers for questions (a) and (b) differ if a 3 Ω resistor is added in series to the 4 Ω resistor? If yes, repeat the question(s) for the new resistor combination.(e) If the values of all the resistors and the source voltage are doubled, what will be the effect on the current? https://seo-videos.collegephysicsanswers.com/ch21/ap05/ed1ch21ap05.mp4 430 4 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-internal-resistance-voltage-source-if-terminal-voltage-source Calculate the internal resistance of a voltage source if the terminal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap07/thumbs-ed1ch21ap07-00002.png Calculate the internal resistance of a voltage source if the terminal voltage of the source increases by 1 V when the current supplied decreases by 4 A? Suppose this source is connected in series (in the same direction) to another source with a different voltage but same internal resistance. What will be the total internal resistance? How will the total internal resistance change if the sources are connected in the opposite direction? https://seo-videos.collegephysicsanswers.com/ch21/ap07/ed1ch21ap07.mp4 334 2 2018-05-09 yes 2018-05-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tv-reception-antennas-vhf-are-constructed-cross-wires-supported-their-centers TV-reception antennas for VHF are constructed with cross wires… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe24/thumbs-ed1ch24pe24-00002.png TV-reception antennas for VHF are constructed with cross wires supported at their centers, as shown in Figure 24.27. The ideal length for the cross wires is one-half the wavelength to be received, with the more expensive antennas having one for each channel. Suppose you measure the lengths of the wires for particular channels and find them to be 1.94 and 0.753 m long, respectively. What are the frequencies for these channels? https://seo-videos.collegephysicsanswers.com/ch24/pe24/ed1ch24pe24.mp4 124 32 2021-01-05 yes 2021-01-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-intensity-electromagnetic-wave-peak-electric-field-strength-125-vm What is the intensity of an electromagnetic wave with a peak electric… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe30/thumbs-ed1ch24pe30-00002.png What is the intensity of an electromagnetic wave with a peak electric field strength of 125 V/m? https://seo-videos.collegephysicsanswers.com/ch24/pe30/ed1ch24pe30.mp4 42 123 4.5 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lasers-can-be-constructed-produce-extremely-high-intensity-electromagnetic-wave Lasers can be constructed that produce an extremely high intensity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe36/thumbs-ed1ch24pe36-00002.png Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief time—called pulsed lasers. They are used to ignite nuclear fusion, for example. Such a laser may produce an electromagnetic wave with a maximum electric field strength of 1.00 x 10^{11} V/m for a time of 1.00 ns. (a) What is the maximum magnetic field strength in the wave? (b) What is the intensity of the beam? (c) What energy does it deliver on a 1.00 mm ^2 area? https://seo-videos.collegephysicsanswers.com/ch24/pe36/ed1ch24pe36.mp4 139 204 4 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-source-electromagnetic-waves-radiates-uniformly-all-directions-empty Suppose a source of electromagnetic waves radiates uniformly in all… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe38/thumbs-ed1ch24pe38-00002.png Suppose a source of electromagnetic waves radiates uniformly in all directions in empty space where there are no absorption or interference effects. (a) Show that the intensity is inversely proportional to r^2, the distance from the source squared. (b) Show that the magnitudes of the electric and magnetic fields are inversely proportional to r. https://seo-videos.collegephysicsanswers.com/ch24/pe38/ed1ch24pe38.mp4 209 10 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/peak-magnetic-field-strength-residential-microwave-oven-920times-10-5textrm-t The peak magnetic field strength in a residential microwave oven is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe48/thumbs-ed1ch24pe48-00002.png The peak magnetic field strength in a residential microwave oven is 9.20 x 10^{-5} T . (a) What is the intensity of the microwave? (b) What is unreasonable about this result? (c) What is wrong about the premise? https://seo-videos.collegephysicsanswers.com/ch24/pe48/ed1ch24pe48.mp4 79 6 5 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lc-circuit-containing-100-pf-capacitor-oscillates-such-frequency-it-radiates-300 An LC circuit containing a 1.00-pF capacitor oscillates at such a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe50/thumbs-ed1ch24pe50-00002.png An LC circuit containing a 1.00-pF capacitor oscillates at such a frequency that it radiates at a 300-nm wavelength. (a) What is the inductance of the circuit? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch24/pe50/ed1ch24pe50.mp4 139 12 5 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-mostly-infrared-radiation-heat-lamp-acts-continuous-wave-wavelength Assume the mostly infrared radiation from a heat lamp acts like a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe42/thumbs-ed1ch24pe42-00002.png Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 \mu m . (a) If the lamp’s 200-W output is focused on a person’s shoulder, over a circular area 25.0 cm in diameter, what is the intensity in W/m ^2 ? (b) What is the peak electric field strength? (c) Find the peak magnetic field strength. (d) How long will it take to increase the temperature of the 4.00-kg shoulder by 2.00 C ° , assuming no other heat transfer and given that its specific heat is 3.47 x 10^{3} J/kg \cdot C ° ? https://seo-videos.collegephysicsanswers.com/ch24/pe42/ed1ch24pe42.mp4 248 74 5 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-capacitance-needed-series-800-mutextrmh-inductor-form-circuit-radiates What capacitance is needed in series with an 800 \mu H inductor to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe40/thumbs-ed1ch24pe40-00002.png What capacitance is needed in series with an 800 \mu H inductor to form a circuit that radiates a wavelength of 196 m? https://seo-videos.collegephysicsanswers.com/ch24/pe40/ed1ch24pe40.mp4 138 36 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-electric-and-magnetic-field-strengths-vary-sinusoidally-time-being-zero-t0 If electric and magnetic field strengths vary sinusoidally in time,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe46/thumbs-ed1ch24pe46-00002.png If electric and magnetic field strengths vary sinusoidally in time, being zero at t=0 , then E = E_0 \sin{2\pi f t} and B = B_0 \sin{2\pi f t} . Let f = 1.00 GHz here. (a) When are the field strengths first zero? (b) When do they reach their most negative value? (c) How much time is needed for them to complete one cycle? https://seo-videos.collegephysicsanswers.com/ch24/pe46/ed1ch24pe46.mp4 158 42 3 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electromagnetic-radiation-500-mw-laser-concentrated-100textrm-mm2-area-what Electromagnetic radiation from a 5.00-mW laser is concentrated on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe44/thumbs-ed1ch24pe44-00002.png Electromagnetic radiation from a 5.00-mW laser is concentrated on a 1.00 mm ^2 area. (a) What is the intensity in W/m ^2 ? (b) Suppose a 2.00-nC static charge is in the beam. What is the maximum electric force it experiences? (c) If the static charge moves at 400 m/s, what maximum magnetic force can it feel? https://seo-videos.collegephysicsanswers.com/ch24/pe44/ed1ch24pe44.mp4 209 39 5 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/flat-mirror-neither-converging-nor-diverging-prove-consider-two-rays-originating A flat mirror is neither converging nor diverging. To prove this,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe04/thumbs-ed1ch25pe04-00002.png A flat mirror is neither converging nor diverging. To prove this, consider two rays originating from the same point and diverging at an angle \theta. Show that after striking a plane mirror, the angle between their directions remains \theta. https://seo-videos.collegephysicsanswers.com/ch25/pe04/ed1ch25pe04.mp4 243 102 5 2021-01-08 yes 2021-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-light-air-crown-glass What is the speed of light in air? In crown glass? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe06/thumbs-ed1ch25pe06-00002.png What is the speed of light in air? In crown glass? https://seo-videos.collegephysicsanswers.com/ch25/pe06/ed1ch25pe06.mp4 68 120 5 2021-01-08 yes 2021-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-substance-table-251-speed-light-2290times-108textrm-ms In what substance in Table 25.1 is the speed of light 2.290 x 10^{8}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe08/thumbs-ed1ch25pe08-00002.png In what substance in Table 25.1 is the speed of light 2.290 x 10^{8} m/s ? https://seo-videos.collegephysicsanswers.com/ch25/pe08/ed1ch25pe08.mp4 48 30 5 2021-01-08 yes 2021-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-critical-angle-light-going-water-air-486circ-discussed-end-example-254 Verify that the critical angle for light going from water to air is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe20/thumbs-ed1ch25pe20-00002.png Verify that the critical angle for light going from water to air is 48.6° , as discussed at the end of [Example 25.4](https://openstax.org/books/college-physics-ap-courses/pages/25-4-total-internal-reflection#fs-id2994315), regarding the critical angle for light traveling in a polystyrene (a type of plastic) pipe surrounded by air. https://seo-videos.collegephysicsanswers.com/ch25/pe20/ed1ch25pe20.mp4 57 126 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-power-diopters-camera-lens-has-500-mm-focal-length What is the power in diopters of a camera lens that has a 50.0 mm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe36/thumbs-ed1ch25pe36-00002.png What is the power in diopters of a camera lens that has a 50.0 mm focal length? https://seo-videos.collegephysicsanswers.com/ch25/pe36/ed1ch25pe36.mp4 20 68 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-tall-must-water-filled-manometer-be-measure-blood-pressures-high-300-mm-hg How tall must a water-filled manometer be to measure blood pressures… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe31/thumbs-ed1ch11pe31-00002.png How tall must a water-filled manometer be to measure blood pressures as high as 300 mm Hg? https://seo-videos.collegephysicsanswers.com/ch11/pe31/ed1ch11pe31.mp4 71 152 3.7 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/optical-fiber-uses-flint-glass-clad-crown-glass-what-critical-angle An optical fiber uses flint glass clad with crown glass. What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe22/thumbs-ed1ch25pe22-00002.png An optical fiber uses flint glass clad with crown glass. What is the critical angle? https://seo-videos.collegephysicsanswers.com/ch25/pe22/ed1ch25pe22.mp4 83 144 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-focal-length-175-d-reading-glasses-found-rack-pharmacy What is the focal length of 1.75 D reading glasses found on the rack… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe38/thumbs-ed1ch25pe38-00002.png What is the focal length of 1.75 D reading glasses found on the rack in a pharmacy? https://seo-videos.collegephysicsanswers.com/ch25/pe38/ed1ch25pe38.mp4 37 74 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-do-critical-angles-red-660-nm-and-violet-410-nm-light-differ-diamond By how much do the critical angles for red (660 nm) and violet (410… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe30/thumbs-ed1ch25pe30-00002.png By how much do the critical angles for red (660 nm) and violet (410 nm) light differ in a diamond surrounded by air? https://seo-videos.collegephysicsanswers.com/ch25/pe30/ed1ch25pe30.mp4 68 65 3 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-are-using-total-internal-reflection-make-efficient-corner-reflector Suppose you are using total internal reflection to make an efficient… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe24/thumbs-ed1ch25pe24-00002.png Suppose you are using total internal reflection to make an efficient corner reflector. If there is air outside and the incident angle is 45.0°, what must be the minimum index of refraction of the material from which the reflector is made? https://seo-videos.collegephysicsanswers.com/ch25/pe24/ed1ch25pe24.mp4 110 89 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ray-light-emitted-beneath-surface-unknown-liquid-air-above-it-undergoes-total A ray of light, emitted beneath the surface of an unknown liquid with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe26/thumbs-ed1ch25pe26-00002.png A ray of light, emitted beneath the surface of an unknown liquid with air above it, undergoes total internal reflection as shown in Figure 25.55. What is the index of refraction for the liquid and its likely identification? https://seo-videos.collegephysicsanswers.com/ch25/pe26/ed1ch25pe26.mp4 158 175 4.7 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/parallel-beam-light-containing-orange-610-nm-and-violet-410-nm-wavelengths-goes A parallel beam of light containing orange (610 nm) and violet (410… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe32/thumbs-ed1ch25pe32-00002.png A parallel beam of light containing orange (610 nm) and violet (410 nm) wavelengths goes from fused quartz to water, striking the surface between them at a 60.0° incident angle. What is the angle between the two colors in water? https://seo-videos.collegephysicsanswers.com/ch25/pe32/ed1ch25pe32.mp4 223 96 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-magnification-heater-element-example-259-note-its-large-magnitude-helps Find the magnification of the heater element in [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe56/thumbs-ed1ch25pe56-00002.png Find the magnification of the heater element in [Example 25.9](https://openstax.org/books/college-physics-ap-courses/pages/25-7-image-formation-by-mirrors#fs-id1656496). Note that its large magnitude helps spread out the reflected energy. https://seo-videos.collegephysicsanswers.com/ch25/pe56/ed1ch25pe56.mp4 26 10 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-power-eye-when-viewing-object-300-m-away Calculate the power of the eye when viewing an object 3.00 m away. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe02/thumbs-ed1ch26pe02-00002.png Calculate the power of the eye when viewing an object 3.00 m away. https://seo-videos.collegephysicsanswers.com/ch26/pe02/ed1ch26pe02.mp4 34 126 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-man-has-mass-80-kg-and-density-955-kgm3-excluding-air-his-lungs A certain man has a mass of 80 kg and a density of 955 kg/m ^3… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe47/thumbs-ed1ch11pe47-00002.png A certain man has a mass of 80 kg and a density of 955 kg/m ^3 (excluding the air in his lungs). (a) Calculate his volume. (b) Find the buoyant force air exerts on him. (c) What is the ratio of the buoyant force to his weight? https://seo-videos.collegephysicsanswers.com/ch11/pe47/ed1ch11pe47.mp4 102 149 5 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-far-point-person-whose-eyes-have-relaxed-power-505-d What is the far point of a person whose eyes have a relaxed power of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe06/thumbs-ed1ch26pe06-00002.png What is the far point of a person whose eyes have a relaxed power of 50.5 D? https://seo-videos.collegephysicsanswers.com/ch26/pe06/ed1ch26pe06.mp4 75 197 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fraction-iron-anchors-weight-will-be-supported-buoyant-force-when-submerged What fraction of an iron anchor's weight will be supported by buoyant… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe49/thumbs-ed1ch11pe49-00002.png What fraction of an iron anchor's weight will be supported by buoyant force when submerged in saltwater? https://seo-videos.collegephysicsanswers.com/ch11/pe49/ed1ch11pe49.mp4 112 128 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/laser-vision-correction-reshaping-cornea-myopic-patient-reduces-power-his-eye (a) A laser vision correction reshaping the cornea of a myopic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe08/thumbs-ed1ch26pe08-00002.png (a) A laser vision correction reshaping the cornea of a myopic patient reduces the power of his eye by 9.00 D, with a ± 5.00 % uncertainty in the final correction. What is the range of diopters for spectacle lenses that this person might need after LASIK procedure? (b) Was the person nearsighted or farsighted before the procedure? How do you know? https://seo-videos.collegephysicsanswers.com/ch26/pe08/ed1ch26pe08.mp4 143 97 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-was-previous-far-point-patient-who-had-laser-vision-correction-reduced What was the previous far point of a patient who had laser vision… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe10/thumbs-ed1ch26pe10-00002.png What was the previous far point of a patient who had laser vision correction that reduced the power of her eye by 7.00 D, producing normal distant vision for her? https://seo-videos.collegephysicsanswers.com/ch26/pe10/ed1ch26pe10.mp4 149 135 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/young-woman-normal-distant-vision-has-100-ability-accommodate-increase-power-her A young woman with normal distant vision has a 10.0% ability to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe14/thumbs-ed1ch26pe14-00002.png A young woman with normal distant vision has a 10.0% ability to accommodate (that is, increase) the power of her eyes. What is the closest object she can see clearly? https://seo-videos.collegephysicsanswers.com/ch26/pe14/ed1ch26pe14.mp4 164 68 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pressure-inside-alveolus-200-times-10-4-m-radius-140-times-103-pa-due-its-fluid (a) The pressure inside an alveolus with a 2.00 x 10^{-4} m radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe55/thumbs-ed1ch11pe55-00002.png (a) The pressure inside an alveolus with a 2.00 x 10^{-4} m radius is 1.40 x 10^3 Pa , due to its fluid-lined walls. Assuming the alveolus acts like a spherical bubble, what is the surface tension of the fluid? (b) Identify the likely fluid. (You may need to extrapolate between values in Table 11.3.) https://seo-videos.collegephysicsanswers.com/ch11/pe55/ed1ch11pe55.mp4 74 40 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-gauge-pressure-inside-rubber-balloon-100-cm-radius-150-cm-water-what If the gauge pressure inside a rubber balloon with a 10.0-cm radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe61/thumbs-ed1ch11pe61-00002.png If the gauge pressure inside a rubber balloon with a 10.0-cm radius is 1.50 cm of water, what is the effective surface tension of the balloon? https://seo-videos.collegephysicsanswers.com/ch11/pe61/ed1ch11pe61.mp4 106 47 5 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-heights-which-ethyl-alcohol-and-water-are-raised-capillary-action What is the ratio of heights to which ethyl alcohol and water are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe67/thumbs-ed1ch11pe67-00002.png What is the ratio of heights to which ethyl alcohol and water are raised by capillary action in the same glass tube? https://seo-videos.collegephysicsanswers.com/ch11/pe67/ed1ch11pe67.mp4 108 16 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hall-probe-calibrated-read-100-mu-textrmv-when-placed-200-t-field-placed-0150-t A Hall probe calibrated to read 1.00 \mu V when placed in a 2.00-T… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe27/thumbs-ed1ch22pe27-00002.png A Hall probe calibrated to read 1.00 \mu V when placed in a 2.00-T field is placed in a 0.150-T field. What is its output voltage? https://seo-videos.collegephysicsanswers.com/ch22/pe27/ed1ch22pe27.mp4 79 30 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mother-sees-her-childs-contact-lens-prescription-0750-d-what-childs-near-point A mother sees that her child’s contact lens prescription is 0.750 D.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe22/thumbs-ed1ch26pe22-00002.png A mother sees that her child’s contact lens prescription is 0.750 D. What is the child’s near point? https://seo-videos.collegephysicsanswers.com/ch26/pe22/ed1ch26pe22.mp4 149 145 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/myopic-person-sees-her-contact-lens-prescription-400-d-what-her-far-point A myopic person sees that her contact lens prescription is –4.00 D .… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe18/thumbs-ed1ch26pe18-00002.png A myopic person sees that her contact lens prescription is –4.00 D . What is her far point? https://seo-videos.collegephysicsanswers.com/ch26/pe18/ed1ch26pe18.mp4 135 142 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/your-friends-show-you-image-through-microscope-they-tell-you-microscope-has Your friends show you an image through a microscope. They tell you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe32/thumbs-ed1ch26pe32-00002.png Your friends show you an image through a microscope. They tell you that the microscope has an objective with a 0.500 cm focal length and an eyepiece with a 5.00 cm focal length. The resulting overall magnification is 250,000. Are these viable values for a microscope? https://seo-videos.collegephysicsanswers.com/ch26/pe32/ed1ch26pe32.mp4 453 8 2021-01-26 yes 2021-01-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-distance-between-objective-and-eyepiece-lenses-telescope-above-problem Find the distance between the objective and eyepiece lenses in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe34/thumbs-ed1ch26pe34-00002.png Find the distance between the objective and eyepiece lenses in the telescope in the above problem needed to produce a final image very far from the observer, where vision is most relaxed. Note that a telescope is normally used to view very distant objects. https://seo-videos.collegephysicsanswers.com/ch26/pe34/ed1ch26pe34.mp4 72 76 4.5 2021-01-26 yes 2021-01-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/toy-car-going-around-loop-loop-gravity-kinetic-energy-upward-side-loop-kinetic A toy car is going around a loop-the-loop. Gravity \_\_\_\_ the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap06/thumbs-ed1ch07ap06-00002.png A toy car is going around a loop-the-loop. Gravity \_\_\_\_ the kinetic energy on the upward side of the loop, \_\_\_\_ the kinetic energy at the top, and \_\_\_\_ the kinetic energy on the downward side of the loop. (a) increases, decreases, has no effect on(b) decreases, has no effect on, increases(c) increases, has no effect on, decreases(d) decreases, increases, has no effect on https://seo-videos.collegephysicsanswers.com/ch07/ap06/ed1ch07ap06.mp4 98 8 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-wind-blowing-horizontally-toward-car-angle-30-degrees-direction-travel If wind is blowing horizontally toward a car with an angle of 30… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap08/thumbs-ed1ch07ap08-00002.png If wind is blowing horizontally toward a car with an angle of 30 degrees from the direction of travel, the kinetic energy will \_\_\_\_. If the wind is blowing at a car at 135 degrees from the direction of travel, the kinetic energy will \_\_\_\_. (a) increase, increase(b) increase, decrease(c) decrease, increase(d) decrease, decrease https://seo-videos.collegephysicsanswers.com/ch07/ap08/ed1ch07ap08.mp4 100 12 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-have-cart-track-cart-several-masses-and-position-sensing-pulley-design You have a cart track, a cart, several masses, and a position-sensing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap02/thumbs-ed1ch07ap02-00002.png You have a cart track, a cart, several masses, and a position-sensing pulley. Design an experiment to examine how the force exerted on the cart does work as it moves through a distance. https://seo-videos.collegephysicsanswers.com/ch07/ap02/ed1ch07ap02.mp4 135 12 1 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-force-acting-object-parallel-direction-motion-center-mass-mechanical-energy When the force acting on an object is parallel to the direction of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap14/thumbs-ed1ch07ap14-00002.png When the force acting on an object is parallel to the direction of the motion of the center of mass, the mechanical energy \_\_\_\_. When the force acting on an object is antiparallel to the direction of the center of mass, the mechanical energy \_\_\_\_.(a) increases, increases(b) increases, decreases(c) decreases, increases(d) decreases, decreases https://seo-videos.collegephysicsanswers.com/ch07/ap14/ed1ch07ap14.mp4 61 8 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/model-drag-car-being-accelerated-along-its-track-rest-motor-force-75-n-there A model drag car is being accelerated along its track from rest by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap12/thumbs-ed1ch07ap12-00002.png A model drag car is being accelerated along its track from rest by a motor with a force of 75 N, but there is a drag force of 30 N due to the track. What is the kinetic energy after 2 m of travel? (a) 90 J(b) 150 J(c) 210 J(d) 60 J https://seo-videos.collegephysicsanswers.com/ch07/ap12/ed1ch07ap12.mp4 82 16 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-40-kg-masses-are-connected-each-other-spring-force-constant-25-nm-and-rest Two 4.0 kg masses are connected to each other by a spring with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap22/thumbs-ed1ch07ap22-00002.png Two 4.0 kg masses are connected to each other by a spring with a force constant of 25 N/m and a rest length of 1.0 m. If the spring has been compressed to 0.80 m in length and the masses are traveling toward each other at 0.50 m/s (each), what is the total energy in the system? (a) 1.0 J(b) 1.5 J(c) 9.0 J(d) 8.0 J https://seo-videos.collegephysicsanswers.com/ch07/ap22/ed1ch07ap22.mp4 97 12 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-information-do-you-need-calculate-kinetic-energy-and-potential-energy What information do you need to calculate the kinetic energy and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap24/thumbs-ed1ch07ap24-00002.png What information do you need to calculate the kinetic energy and potential energy of a spring? Potential energy due to gravity? How many objects do you need information about for each of these cases? https://seo-videos.collegephysicsanswers.com/ch07/ap24/ed1ch07ap24.mp4 100 10 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/draw-graph-force-parallel-displacement-exerted-stunt-motorcycle-going-through Draw a graph of the force parallel to displacement exerted on a stunt… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap18/thumbs-ed1ch07ap18-00002.png Draw a graph of the force parallel to displacement exerted on a stunt motorcycle going through a loop-the-loop versus the distance traveled around the loop. Explain the net change in energy. https://seo-videos.collegephysicsanswers.com/ch07/ap18/ed1ch07ap18.mp4 201 6 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-tower-stores-not-only-water-least-part-energy-move-water-how-much-make A water tower stores not only water, but (at least part of) the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap28/thumbs-ed1ch07ap28-00002.png A water tower stores not only water, but (at least part of) the energy to move the water. How much? Make reasonable estimates for how much water is in the tower, and other quantities you need. https://seo-videos.collegephysicsanswers.com/ch07/ap28/ed1ch07ap28.mp4 91 4 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/2000-kg-airplane-coming-landing-velocity-5-degrees-below-horizontal-and-drag A 2000-kg airplane is coming in for a landing, with a velocity 5… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap10/thumbs-ed1ch07ap10-00002.png A 2000-kg airplane is coming in for a landing, with a velocity 5 degrees below the horizontal and a drag force of 40 kN acting directly rearward. Kinetic energy will \_\_\_\_ due to the net force of \_\_\_\_. (a) increase, 20 kN(b) decrease, 40 kN(c) increase, 45 kN(d) decrease, 45 kN https://seo-videos.collegephysicsanswers.com/ch07/ap10/ed1ch07ap10.mp4 173 32 5 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hydroelectricity-generated-storing-water-behind-dam-and-then-letting-some-it-run Hydroelectricity is generated by storing water behind a dam, and then… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap40/thumbs-ed1ch07ap40-00002.png Hydroelectricity is generated by storing water behind a dam, and then letting some of it run through generators in the dam to turn them. If the system is the water, what is the environment that is doing work on it? If a dam has water 100 m deep behind it, how much energy was generated if 10,000 kg of water exited the dam at 2.0 m/s? https://seo-videos.collegephysicsanswers.com/ch07/ap40/ed1ch07ap40.mp4 137 24 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-automobile-crash-test-average-force-exerted-solid-wall-2500-kg-car-hits During an automobile crash test, the average force exerted by a solid… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap08/thumbs-ed1ch08ap08-00002.png During an automobile crash test, the average force exerted by a solid wall on a 2500-kg car that hits the wall is measured to be 740,000 N over a 0.22-s time interval. What was the initial speed of the car prior to the collision, assuming the car is at rest at the end of the time interval? https://seo-videos.collegephysicsanswers.com/ch08/ap08/ed1ch08ap08.mp4 90 16 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/22-g-puck-hits-wall-air-hockey-table-perpendicular-wall-initial-speed-7-ms-puck A 22-g puck hits the wall of an air hockey table perpendicular to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap12/thumbs-ed1ch08ap12-00002.png A 22-g puck hits the wall of an air hockey table perpendicular to the wall with an initial speed of 7 m/s. The puck is in contact with the wall for 0.011 s, and the wall exerts an average force of 28 N on the puck during that time. Calculate the magnitude and direction of the change in momentum of the puck. https://seo-videos.collegephysicsanswers.com/ch08/ap12/ed1ch08ap12.mp4 98 16 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/graph-figure-821-represents-force-exerted-particle-during-collision-what The graph in Figure 8.21 represents the force exerted on a particle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap14/thumbs-ed1ch08ap14-00002.png The graph in Figure 8.21 represents the force exerted on a particle during a collision. What is the magnitude of the change in momentum of the particle as a result of the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap14/ed1ch08ap14.mp4 98 6 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-cars-and-b-mass-15-kg-collide-car-initially-moving-24-ms-and-car-b-initially Two cars (A and B) of mass 1.5 kg collide. Car A is initially moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap22/thumbs-ed1ch08ap22-00002.png Two cars (A and B) of mass 1.5 kg collide. Car A is initially moving at 24 m/s, and car B is initially moving in the opposite direction with a speed of 12 m/s. The two cars are moving along a straight line before and after the collision. (a) If the two cars have an elastic collision, calculate the change in momentum of the two-car system. (b) If the two cars have a completely inelastic collision, calculate the change in momentum of the two-car system. https://seo-videos.collegephysicsanswers.com/ch08/ap22/ed1ch08ap22.mp4 42 6 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/design-experiment-verify-relationship-between-average-force-exerted-object-and Design an experiment to verify the relationship between the average… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap10/thumbs-ed1ch08ap10-00002.png Design an experiment to verify the relationship between the average force exerted on an object and the change in momentum of that object. As part of your explanation, list the equipment you would use and describe your experimental setup. What would you measure and how? How exactly would you verify the relationship? Explain. https://seo-videos.collegephysicsanswers.com/ch08/ap10/ed1ch08ap10.mp4 255 6 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/150-g-baseball-initially-moving-80-mih-x-direction-after-colliding-baseball-bat A 150-g baseball is initially moving 80 mi/h in the –x-direction.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap02/thumbs-ed1ch08ap02-00002.png A 150-g baseball is initially moving 80 mi/h in the –x-direction. After colliding with a baseball bat for 20 ms, the baseball moves 80 mi/h in the +x-direction. What is the magnitude and direction of the average force exerted by the bat on the baseball? https://seo-videos.collegephysicsanswers.com/ch08/ap02/ed1ch08ap02.mp4 133 32 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/75-g-ball-dropped-rest-height-22-m-it-bounces-floor-and-rebounds-maximum-height A 75-g ball is dropped from rest from a height of 2.2 m. It bounces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap04/thumbs-ed1ch08ap04-00002.png A 75-g ball is dropped from rest from a height of 2.2 m. It bounces off the floor and rebounds to a maximum height of 1.7 m. If the ball is in contact with the floor for 0.024 s, what is the magnitude and direction of the average force exerted on the ball by the floor during the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap04/ed1ch08ap04.mp4 407 34 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/40-kg-girl-runs-across-mat-speed-50-ms-and-jumps-120-kg-hanging-platform A 40-kg girl runs across a mat with a speed of 5.0 m/s and jumps onto… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap16/thumbs-ed1ch08ap16-00002.png A 40-kg girl runs across a mat with a speed of 5.0 m/s and jumps onto a 120-kg hanging platform initially at rest, causing the girl and platform to swing back and forth like a pendulum together after her jump. What is the combined velocity of the girl and platform after the jump? What is the combined momentum of the girl and platform both before and after the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap16/ed1ch08ap16.mp4 216 14 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/whether-or-not-object-such-plate-glass-or-bone-breaks-upon-impact-depends Whether or not an object (such as a plate, glass, or bone) breaks… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap06/thumbs-ed1ch08ap06-00002.png Whether or not an object (such as a plate, glass, or bone) breaks upon impact depends on the average force exerted on that object by the surface. When a 1.2-kg glass figure hits the floor, it will break if it experiences an average force of 330 N. When it hits a tile floor, the glass comes to a stop in 0.015 s. From what minimum height must the glass fall to experience sufficient force to break? How would your answer change if the figure were falling to a padded or carpeted surface? Explain. https://seo-videos.collegephysicsanswers.com/ch08/ap06/ed1ch08ap06.mp4 359 24 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cart-moving-velocity-10-ms-toward-cart-b-which-moving-velocity-4-ms-both-carts Cart A is moving with a velocity of +10 m/s toward cart B, which is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap20/thumbs-ed1ch08ap20-00002.png Cart A is moving with a velocity of +10 m/s toward cart B, which is moving with a velocity of +4 m/s. Both carts have equal mass and are moving on a frictionless surface. The two carts have an inelastic collision and stick together after the collision. Calculate the velocity of the center of mass of the system before and after the collision. If there were friction present in this problem, how would this external force affect the center-of-mass velocity both before and after the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap20/ed1ch08ap20.mp4 172 6 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-cars-and-b-equal-mass-have-elastic-collision-prior-collision-car-moving-20 Two cars (A and B) of equal mass have an elastic collision. Prior to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap26/thumbs-ed1ch08ap26-00002.png Two cars (A and B) of equal mass have an elastic collision. Prior to the collision, car A is moving at 20 m/s in the +x-direction, and car B is moving at 10 m/s in the –x-direction. Assuming that both cars continue moving along the x-axis after the collision, what will be the velocities of each car after the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap26/ed1ch08ap26.mp4 345 22 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/group-students-has-two-carts-and-b-wheels-turn-negligible-friction-carts-can A group of students has two carts, A and B, with wheels that turn… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap18/thumbs-ed1ch08ap18-00002.png A group of students has two carts, A and B, with wheels that turn with negligible friction. The carts can travel along a straight horizontal track. Cart A has known mass mA. The students are asked to use a one-dimensional collision between the carts to determine the mass of cart B. Before the collision, cart A travels to the right and cart B is initially at rest. After the collision, the carts stick together. (a) Describe an experimental procedure to determine the velocities of the carts before and after a collision, including all the additional equipment you would need. You may include a labeled diagram of your setup to help in your description. Indicate what measurements you would take and how you would take them. Include enough detail so that another student could carry out your procedure.(b) There will be sources of error in the measurements taken in the experiment, both before and after the collision. For your experimental procedure, will the uncertainty in the calculated value of the mass of cart B be affected more by the error in the measurements taken before the collision or by those taken after the collision, or will it be equally affected by both sets of measurements? Justify your answer.(c) A group of students took measurements for one collision. A graph of the students’ data is shown below in Figure 8.22. Given m\_ A = 0.50 kg , use the graph to calculate the mass of cart B. Explicitly indicate the principles used in your calculations.(d) The students are now asked to Consider the kinetic energy changes in an inelastic collision, specifically whether the initial values of one of the physical quantities affect the fraction of mechanical energy dissipated in the collision. How could you modify the experiment to investigate this question? Be sure to explicitly describe the calculations you would make, specifying all equations you would use (but do not actually do any algebra or arithmetic). https://seo-videos.collegephysicsanswers.com/ch08/ap18/ed1ch08ap18.mp4 575 26 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-10-kg-slides-across-frictionless-surface-velocity-4-ms-positive-direction Mass A (1.0 kg) slides across a frictionless surface with a velocity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap40/thumbs-ed1ch08ap40-00002.png Mass A (1.0 kg) slides across a frictionless surface with a velocity of 4 m/s in the positive direction. Mass B (1.0 kg) slides across the same surface in the opposite direction with a velocity of −8 m/s. The two objects collide and stick together after the collision. Predict how the center-of-mass velocity will change as a result of the collision, and explain your prediction. Calculate the center-of-mass velocity of the system both before and after the collision and explain why it remains the same or why it has changed. https://seo-videos.collegephysicsanswers.com/ch08/ap40/ed1ch08ap40.mp4 177 8 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-objects-equal-mass-collide-object-initially-moving-velocity-15-ms-x Two objects of equal mass collide. Object A is initially moving with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap34/thumbs-ed1ch08ap34-00002.png Two objects of equal mass collide. Object A is initially moving with a velocity of 15 m/s in the +x-direction, and object B is initially at rest. After the collision, object A is at rest. There are no external forces acting on the system of two masses. (a) Use momentum conservation to deduce the velocity of object B after the collision. (b) Is this collision elastic? Justify your answer. https://seo-videos.collegephysicsanswers.com/ch08/ap34/ed1ch08ap34.mp4 139 10 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-force-slide-wire-figure-1128-if-it-350-cm-long-and-fluid-ethyl-alcohol Calculate the force on the slide wire in Figure 11.28 if it is 3.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe57/thumbs-ed1ch11pe57-00002.png Calculate the force on the slide wire in Figure 11.28 if it is 3.50 cm long and the fluid is ethyl alcohol. https://seo-videos.collegephysicsanswers.com/ch11/pe57/ed1ch11pe57.mp4 50 20 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tennis-ball-strikes-wall-initial-speed-15-ms-ball-bounces-wall-rebounds-slightly A tennis ball strikes a wall with an initial speed of 15 m/s. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap28/thumbs-ed1ch08ap28-00002.png A tennis ball strikes a wall with an initial speed of 15 m/s. The ball bounces off the wall but rebounds with slightly less speed (14 m/s) after the collision. Explain (a) what else changed its momentum in response to the ball’s change in momentum so that overall momentum is conserved, and (b) how some of the ball’s kinetic energy was lost. https://seo-videos.collegephysicsanswers.com/ch08/ap28/ed1ch08ap28.mp4 147 6 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-three-times-more-massive-mass-b-mass-initially-moving-12-ms-x-direction Mass A is three times more massive than mass B. Mass A is initially… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap30/thumbs-ed1ch08ap30-00002.png Mass A is three times more massive than mass B. Mass A is initially moving 12 m/s in the +x-direction. Mass B is initially moving 12 m/s in the –x-direction. Assuming that the collision is elastic, calculate the final velocity of both masses after the collision. Show that your results are consistent with conservation of momentum and conservation of kinetic energy. https://seo-videos.collegephysicsanswers.com/ch08/ap30/ed1ch08ap30.mp4 588 8 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-has-initial-velocity-22-ms-x-direction-mass-b-three-times-more-massive-mass Mass A has an initial velocity of 22 m/s in the +x-direction. Mass B… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap42/thumbs-ed1ch08ap42-00002.png Mass A has an initial velocity of 22 m/s in the +x-direction. Mass B is three times more massive than mass A and has an initial velocity of 22 m/s in the –x-direction. If the two masses have an elastic collision, what will be the final velocities of the masses after the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap42/ed1ch08ap42.mp4 388 6 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-initially-moving-some-unknown-velocity-x-direction-mass-b-twice-massive Mass A is initially moving with some unknown velocity in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap48/thumbs-ed1ch08ap48-00002.png Mass A is initially moving with some unknown velocity in the +x-direction. Mass B is twice as massive as mass A and initially at rest. The two objects collide, and after the collision, they move together with a speed of 6 m/s in the +x-direction. (a) Is this collision elastic or inelastic? Explain. (b) Determine the initial velocity of mass A. https://seo-videos.collegephysicsanswers.com/ch08/ap48/ed1ch08ap48.mp4 82 10 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-20-kg-moving-initial-velocity-15-ms-x-direction-and-it-collides-mass-b-40 Mass A (2.0 kg) is moving with an initial velocity of 15 m/s in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap44/thumbs-ed1ch08ap44-00002.png Mass A (2.0 kg) is moving with an initial velocity of 15 m/s in the +x-direction, and it collides with mass B (4.0 kg), initially moving 7.0 m/s in the +x-direction. After the collision, the two objects stick together and move as one. What is the change in kinetic energy of the system as a result of the collision? https://seo-videos.collegephysicsanswers.com/ch08/ap44/ed1ch08ap44.mp4 131 12 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-initially-moving-velocity-15-ms-x-direction-mass-b-twice-massive-and Mass A is initially moving with a velocity of 15 m/s in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap50/thumbs-ed1ch08ap50-00002.png Mass A is initially moving with a velocity of 15 m/s in the +x-direction. Mass B is twice as massive and is initially moving with a velocity of 10 m/s in the –x-direction. The two objects collide, and after the collision, mass A moves with a speed of 15 m/s in the –x-direction. (a) What is the final velocity of mass B after the collision? (b) Calculate the change in kinetic energy as a result of the collision, assuming mass A is 5.0 kg. https://seo-videos.collegephysicsanswers.com/ch08/ap50/ed1ch08ap50.mp4 167 6 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-has-mass-2000-kg-and-approaches-intersection-velocity-38-ms-directed-east Car A has a mass of 2000 kg and approaches an intersection with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap52/thumbs-ed1ch08ap52-00002.png Car A has a mass of 2000 kg and approaches an intersection with a velocity of 38 m/s directed to the east. Car B has a mass of 3500 kg and approaches the intersection with a velocity of 53 m/s directed 63° north of east. The two cars collide and stick together after the collision. Will the center-of-mass velocity change as a result of the collision? Explain why or why not. Calculate the center-of-mass velocity before and after the collision. https://seo-videos.collegephysicsanswers.com/ch08/ap52/ed1ch08ap52.mp4 526 14 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-sits-end-playground-see-saw-which-following-values-most-appropriate A child sits on the end of a playground see-saw. Which of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap04/thumbs-ed1ch09ap04-00002.png A child sits on the end of a playground see-saw. Which of the following values is the most appropriate estimate of the torque created by the child? (a) 6 N \cdot m (b) 60 N \cdot m (c) 600 N \cdot m (d) 6000 N \cdot m https://seo-videos.collegephysicsanswers.com/ch09/ap04/ed1ch09ap04.mp4 61 8 2021-02-11 yes 2021-02-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/we-stated-example-1112-xylem-tube-radius-250-times-10-5-m-verify-such-tube We stated in Example 11.12 that a xylem tube is of radius 2.50 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe59/thumbs-ed1ch11pe59-00002.png We stated in Example 11.12 that a xylem tube is of radius 2.50 x 10^{-5} m . Verify that such a tube raises sap less than a meter by finding h for it, making the same assumptions that sap's density is 1050 kg/m ^3 , its contact angle is zero, and its surface tension is the same as that of water at 20.0° C . https://seo-videos.collegephysicsanswers.com/ch11/pe59/ed1ch11pe59.mp4 49 36 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-924a-shows-wheelbarrow-being-lifted-applied-force-fi-if-wheelbarrow Figure 9.24(a) shows a wheelbarrow being lifted by an applied force… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap10/thumbs-ed1ch09ap10-00002.png Figure 9.24(a) shows a wheelbarrow being lifted by an applied force Fi. If the wheelbarrow is filled with twenty bricks massing 3 kg each, estimate the value of the applied force Fi. Provide an explanation behind the total weight w and any reasoning toward your final answer. Additionally, provide a range of values over which you feel the force could exist. https://seo-videos.collegephysicsanswers.com/ch09/ap10/ed1ch09ap10.mp4 117 6 2021-02-11 yes 2021-02-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/five-forces-equal-magnitude-labeled-e-are-applied-object-shown-below-if-object Five forces of equal magnitude, labeled A–E, are applied to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap02/thumbs-ed1ch09ap02-00002.png Five forces of equal magnitude, labeled A–E, are applied to the object shown below. If the object is anchored at point P, which force will provide the greatest torque? (a) Force A(b) Force B(c) Force C(d) Force D(e) Force E https://seo-videos.collegephysicsanswers.com/ch09/ap02/ed1ch09ap02.mp4 160 21 2021-02-11 yes 2021-02-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/10-n-board-uniform-density-5-meters-long-it-supported-left-string-bearing-3-n A 10 N board of uniform density is 5 meters long. It is supported on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap06/thumbs-ed1ch09ap06-00002.png A 10 N board of uniform density is 5 meters long. It is supported on the left by a string bearing a 3 N upward force. In order to prevent the string from breaking, a person must place an upward force of 7 N at a position along the bottom surface of the board. At what distance from its left edge would they need to place this force in order for the board to be in static equilibrium? (a) \dfrac{3}{7} m (b) \dfrac{5}{2} m (c) \dfrac{25}{7} m (d) \dfrac{30}{7} m (e) 5 m https://seo-videos.collegephysicsanswers.com/ch09/ap06/ed1ch09ap06.mp4 132 22 2021-02-11 yes 2021-02-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ferris-wheel-loaded-people-chairs-following-positions-4-oclock-1-oclock-9-oclock A Ferris wheel is loaded with people in the chairs at the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap02/thumbs-ed1ch10ap02-00002.png A Ferris wheel is loaded with people in the chairs at the following positions: 4 o'clock, 1 o'clock, 9 o'clock, and 6 o'clock. As the wheel begins to turn, what forces are acting on the system? How will each force affect the angular velocity and angular momentum? https://seo-videos.collegephysicsanswers.com/ch10/ap02/ed1ch10ap02.mp4 92 12 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-will-cause-greater-increase-angular-velocity-disk-doubling-torque-applied Which will cause a greater increase in the angular velocity of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap08/thumbs-ed1ch10ap08-00002.png Which will cause a greater increase in the angular velocity of a disk: doubling the torque applied or halving the radius at which the torque is applied? Explain. https://seo-videos.collegephysicsanswers.com/ch10/ap08/ed1ch10ap08.mp4 134 14 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-data-could-you-collect-study-change-angular-velocity-when-two-people-push What data could you collect to study the change in angular velocity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap10/thumbs-ed1ch10ap10-00002.png What data could you collect to study the change in angular velocity when two people push a merry-go-round instead of one, providing twice as much torque? How would you use the data you collect? https://seo-videos.collegephysicsanswers.com/ch10/ap10/ed1ch10ap10.mp4 115 12 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-collecting-data-study-changes-angular-momentum-bicycle-wheel-when-force You are collecting data to study changes in the angular momentum of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap12/thumbs-ed1ch10ap12-00002.png You are collecting data to study changes in the angular momentum of a bicycle wheel when a force is applied to it. Which of the following measurements would be least helpful to you? (a) the time for which the force is applied(b) the radius at which the force is applied(c) the angular velocity of the wheel when the force is applied(d) the direction of the force https://seo-videos.collegephysicsanswers.com/ch10/ap12/ed1ch10ap12.mp4 125 8 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/moon-elliptical-orbit-about-planet-shown-above-point-moon-has-speed-ua-and A moon is in an elliptical orbit about a planet as shown above. At… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap16/thumbs-ed1ch10ap16-00002.png A moon is in an elliptical orbit about a planet as shown above. At point A the moon has speed u_A and is at distance R_A from the planet. At point B the moon has speed u_B. Has the moon's angular momentum changed? Explain your answer. https://seo-videos.collegephysicsanswers.com/ch10/ap16/ed1ch10ap16.mp4 103 6 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-do-you-arrange-these-objects-so-resulting-system-has-maximum-possible-moment How do you arrange these objects so that the resulting system has the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap06/thumbs-ed1ch10ap06-00002.png How do you arrange these objects so that the resulting system has the maximum possible moment of inertia? What is that moment of inertia? https://seo-videos.collegephysicsanswers.com/ch10/ap06/ed1ch10ap06.mp4 172 18 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-can-use-following-setup-determine-angular-acceleration-and-angular-momentum You can use the following setup to determine angular acceleration and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap04/thumbs-ed1ch10ap04-00002.png You can use the following setup to determine angular acceleration and angular momentum: A lever is placed on a fulcrum. A rock is placed on the left end of the lever and a known downward (clockwise) force is applied to the right end of the lever. What calculations would you perform? How would you account for gravity in your calculations? https://seo-videos.collegephysicsanswers.com/ch10/ap04/ed1ch10ap04.mp4 225 8 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-would-be-best-way-produce-measurable-amounts-torque-system-test Which of the following would be the best way to produce measurable… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap14/thumbs-ed1ch10ap14-00002.png Which of the following would be the best way to produce measurable amounts of torque on a system to test the relationship between the angular momentum of the system, the average torque applied to the system, and the time for which the torque is applied? (a) having different numbers of people push on a merry-go- round(b) placing known masses on one end of a seesaw(c) touching the outer edge of a bicycle wheel to a treadmill that is moving at different speeds(d) hanging known masses from a string that is wound around a spool suspended horizontally on an axle https://seo-videos.collegephysicsanswers.com/ch10/ap14/ed1ch10ap14.mp4 157 10 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-high-will-water-rise-glass-capillary-tube-0500-mm-radius-b-how-much (a) How high will water rise in a glass capillary tube with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe79/thumbs-ed1ch11pe79-00002.png (a) How high will water rise in a glass capillary tube with a 0.500-mm radius? (b) How much gravitational potential energy does the water gain? (c) Discuss possible sources of this energy. https://seo-videos.collegephysicsanswers.com/ch11/pe79/ed1ch11pe79.mp4 162 15 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/earth-has-mass-60times-1024textrm-kg-radius-64times-106textrm-m-and-angular Earth has a mass of 6.0 x 10^{24} kg , a radius of 6.4 x 10^{6} m ,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap18/thumbs-ed1ch10ap18-00002.png Earth has a mass of 6.0 x 10^{24} kg , a radius of 6.4 x 10^{6} m , and an angular velocity of 1.2 x 10^{-5} rev/s . How would the planet's angular velocity change if a layer of Earth with mass 1.0 x 10^{23} kg broke off of the Earth, decreasing Earth's radius by 0.2 x 10^{6} m ? Assume no friction. https://seo-videos.collegephysicsanswers.com/ch10/ap18/ed1ch10ap18.mp4 190 22 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-baseball-bat-being-swung-3p-rads-batting-machine-equivalent-11-m-thin-rod Assume that a baseball bat being swung at 3π rad/s by a batting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap20/thumbs-ed1ch10ap20-00002.png Assume that a baseball bat being swung at 3π rad/s by a batting machine is equivalent to a 1.1 m thin rod with a mass of 1.0 kg. How fast would a 0.15 kg baseball that squarely hits the very tip of the bat have to be going for the net angular momentum of the bat-ball system to be zero? https://seo-videos.collegephysicsanswers.com/ch10/ap20/ed1ch10ap20.mp4 213 20 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-hit-steel-nail-0500-kg-hammer-initially-moving-150-ms-and-brought Suppose you hit a steel nail with a 0.500-kg hammer, initially moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe81/thumbs-ed1ch11pe81-00002.png Suppose you hit a steel nail with a 0.500-kg hammer, initially moving at 15.0 m/s and brought to rest in 2.80 mm. (a) What average force is exerted on the nail? (b) How much is the nail compressed if it is 2.50 mm in diameter and 6.00-cm long? (c) What pressure is created on the 1.00-mm- diameter tip of the nail? https://seo-videos.collegephysicsanswers.com/ch11/pe81/ed1ch11pe81.mp4 240 37 5 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spinner-board-game-can-be-thought-thin-rod-spins-about-axis-its-center-spinner A spinner in a board game can be thought of as a thin rod that spins… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap22/thumbs-ed1ch10ap22-00002.png A spinner in a board game can be thought of as a thin rod that spins about an axis at its center. The spinner in a certain game is 12 cm long and has a mass of 10 g. How will its angular velocity change when it is flicked at one end with a force equivalent to 15 g travelling at 5.0 m/s if all the energy of the collision is transferred to the spinner? (You can use the table in [Figure 10.12](https://openstax.org/books/college-physics/pages/10-3-dynamics-of-rotational-motion-rotational-inertia#fs-id1569465) to estimate the rotational inertia of the spinner.) https://seo-videos.collegephysicsanswers.com/ch10/ap22/ed1ch10ap22.mp4 289 16 2021-02-12 yes 2021-02-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-screwdriver-has-two-speeds-each-which-exerts-different-torque-screw An electric screwdriver has two speeds, each of which exerts a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap24/thumbs-ed1ch10ap24-00002.png An electric screwdriver has two speeds, each of which exerts a different torque on a screw. Describe what calculations you could use to help you compare the angular momentum of a screw at each speed. What measurements would you need to make in order to calculate this? https://seo-videos.collegephysicsanswers.com/ch10/ap24/ed1ch10ap24.mp4 98 8 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-could-you-use-simple-equipment-such-balls-and-string-study-changes-angular How could you use simple equipment such as balls and string to study… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap28/thumbs-ed1ch10ap28-00002.png How could you use simple equipment such as balls and string to study the changes in angular momentum of a system when it interacts with another system? https://seo-videos.collegephysicsanswers.com/ch10/ap28/ed1ch10ap28.mp4 171 8 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/piece-aluminum-foil-has-known-surface-density-15textrm-gcm2-if-100-gram-hollow A piece of aluminum foil has a known surface density of 15 g/cm ^2.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/ap02/thumbs-ed1ch11ap02-00002.png A piece of aluminum foil has a known surface density of 15 g/cm ^2. If a 100-gram hollow cube were constructed using this foil, determine the approximate side length of this cube. (a) 1.05 cm(b) 1.10 cm(c) 2.6 cm(d) 6.67 cm(e) 15 cm https://seo-videos.collegephysicsanswers.com/ch11/ap02/ed1ch11ap02.mp4 76 10 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cube-polystyrene-measuring-10-cm-side-lies-partially-submerged-large-container A cube of polystyrene measuring 10 cm per side lies partially… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/ap03/thumbs-ed1ch11ap03-00002.png A cube of polystyrene measuring 10 cm per side lies partially submerged in a large container of water. (a) If 90% of the polystyrene floats above the surface of the water, what is the density of the polystyrene? (Note: The density of water is 1000 kg/m3.)(b) A 0.5 kg mass is placed on the block of polystyrene. What percentage of the block now remains above water?(c) The water is poured out of the container and replaced with ethyl alcohol (density = 790 kg/m3). (a) Will the block be able to remain partially submerged in this new fluid? Explain.(d) Will the block be able to remain partially submerged in this new fluid with the 0.5 kg mass placed on top? Explain.(b) Without using a container of water, explain how you could determine the density of the polystyrene mentioned above if the material instead were spherical. https://seo-videos.collegephysicsanswers.com/ch11/ap03/ed1ch11ap03.mp4 425 18 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/four-spheres-are-hung-variety-different-springs-table-116-below-describes Four spheres are hung from a variety of different springs. Table 11.6… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/ap04/thumbs-ed1ch11ap04-00002.png Four spheres are hung from a variety of different springs. Table 11.6 below describes the characteristics of both the spheres and the springs from which they are hung. Rank the densities of the objects listed below, from greatest to least. Show work supporting your ranking. https://seo-videos.collegephysicsanswers.com/ch11/ap04/ed1ch11ap04.mp4 205 4 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/popular-pool-toy-allows-user-push-plunger-compress-water-barrel-diameter-30-cm A popular pool toy allows the user to push a plunger to compress… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap02/thumbs-ed1ch12ap02-00002.png A popular pool toy allows the user to push a plunger to compress water in a barrel with a diameter of 3.0 cm. The water is compressed with a speed of 1.2 m/s and emerges from a small opening with a speed of 15 m/s. What is the diameter of the opening? Assume the toy is oriented horizontally. https://seo-videos.collegephysicsanswers.com/ch12/ap02/ed1ch12ap02.mp4 124 14 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cylindrical-drum-radius-05-m-used-hold-400-liters-petroleum-ether-density-68-gml A cylindrical drum of radius 0.5 m is used to hold 400 liters of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/ap05/thumbs-ed1ch11ap05-00002.png A cylindrical drum of radius 0.5 m is used to hold 400 liters of petroleum ether (density = .68 g/mL or 680 kg/m ^3). (Note: 1 liter = 0.001 m ^3) (a) Determine the amount of pressure applied to the walls of the drum if the petroleum ether fills the drum to its top.(b) Determine the amount of pressure applied to the floor of the drum if the petroleum ether fills the drum to its top.(c) If the drum were redesigned to hold 800 liters of petroleum ether: (a) How would the pressure on the walls change? Would it increase, decrease, or stay the same?(d) How would the pressure on the floor change? Would it increase, decrease, or stay the same? https://seo-videos.collegephysicsanswers.com/ch11/ap05/ed1ch11ap05.mp4 167 24 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pump-provides-pressure-lower-end-long-pipeline-supplies-water-reservoir-house A pump provides pressure to the lower end of a long pipeline that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap04/thumbs-ed1ch12ap04-00002.png A pump provides pressure to the lower end of a long pipeline that supplies water from a reservoir to a house located on a hill 150 m vertically upward from the lower end of the pipe (where the water is initially at rest before being pumped). The pipeline has a constant diameter of 3.5 cm, and the upper end of the pipeline is open to the atmosphere. What pressure must the pump provide for water to flow from the upper end of the pipeline at a rate of 5.0 m/s? https://seo-videos.collegephysicsanswers.com/ch12/ap04/ed1ch12ap04.mp4 176 12 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-following-circumstances-within-fluid-and-determine-answer-using Consider the following circumstances within a fluid, and determine… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap06/thumbs-ed1ch12ap06-00002.png Consider the following circumstances within a fluid, and determine the answer using Bernoulli's equation. (a) The pressure and kinetic energy per unit volume along a fluid path increases. What must be true about the potential energy per unit volume of the fluid along the fluid path? Explain. (b) The pressure along a fluid path increases, and the kinetic energy per unit volume remains constant. What must be true about the potential energy per unit volume of the fluid along the fluid path? Explain. https://seo-videos.collegephysicsanswers.com/ch12/ap06/ed1ch12ap06.mp4 106 4 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heroes-movies-hide-beneath-water-and-breathe-through-hollow-reed-villains-never Heroes in movies hide beneath water and breathe through a hollow reed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe71/thumbs-ed1ch11pe71-00002.png Heroes in movies hide beneath water and breathe through a hollow reed (villains never catch on to this trick). In practice, you cannot inhale in this manner if your lungs are more than 60.0 cm below the surface. What is the maximum negative gauge pressure you can create in your lungs on dry land, assuming you can achieve -3.00 cm water pressure with your lungs 60.0 cm below the surface? https://seo-videos.collegephysicsanswers.com/ch11/pe71/ed1ch11pe71.mp4 110 22 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/select-set-data-points-table-below-and-plot-those-points-graph-determine-whether (a) Select a set of data points from the table below and plot those… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap02/thumbs-ed1ch13ap02-00002.png (a) Select a set of data points from the table below and plot those points on a graph to determine whether the gas exhibits properties of an ideal gas. Fill in blank columns in the table for any quantities you graph other than the given data. Label the axes and indicate the scale for each. Draw a best-fit line or curve through your data points.(b) Indicate whether the gas exhibits properties of an ideal gas, and explain what characteristic of your graph provides the evidence.(c) The students repeat their experiment with an identical container that contains half as much gas. They take data for the same values of volume and temperature as in the table. Would the new data result in a different conclusion about whether the gas is ideal? Justify your answer in terms of interactions between the molecules of the gas and the container walls. https://seo-videos.collegephysicsanswers.com/ch13/ap02/ed1ch13ap02.mp4 289 8 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-will-be-ratio-kinetic-energies-and-rms-speeds-nitrogen-molecule-and-helium What will be the ratio of kinetic energies and rms speeds of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap08/thumbs-ed1ch13ap08-00002.png What will be the ratio of kinetic energies and rms speeds of a nitrogen molecule and a helium atom at the same temperature? https://seo-videos.collegephysicsanswers.com/ch13/ap08/ed1ch13ap08.mp4 160 12 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-gas-cylinder-movable-piston-which-has-area-040textrm-m2 Suppose you have gas in a cylinder with a movable piston which has an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap06/thumbs-ed1ch13ap06-00002.png Suppose you have gas in a cylinder with a movable piston which has an area of 0.40 m ^2 . The pressure of the gas is 150 Pa when the height of the piston is 0.02 m. Find the force exerted by the gas on the piston. How does this force change if the piston is moved to a height of 0.03 m? Assume temperature remains constant. https://seo-videos.collegephysicsanswers.com/ch13/ap06/ed1ch13ap06.mp4 153 10 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/molecular-description-heat-transfer-higher-lower-temperatures-applies The molecular description of heat transfer from higher to lower… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap02/thumbs-ed1ch14ap02-00002.png The molecular description of heat transfer from higher to lower temperatures applies to ‘spontaneous’ processes, that is, processes in which no energy is added to or removed or from the systems by work or heat. Refrigeration is an example of work being done to remove energy from air within a given space, and thus lower the temperature of the air. Assume a typical kitchen refrigerator, where the air inside the unit forms the system with a temperature of 25°C, and the walls are kept at a constant temperature of 10°C. In terms of molecules and average kinetic energy, describe how the air is made colder. https://seo-videos.collegephysicsanswers.com/ch14/ap02/ed1ch14ap02.mp4 176 4 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sea-breezes-occur-along-coastlines-and-consist-cool-air-moving-toward-shore Sea breezes occur along coastlines, and consist of cool air moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap08/thumbs-ed1ch14ap08-00002.png Sea breezes occur along coastlines, and consist of cool air moving toward the shore from the ocean. However, this only occurs during the day, and is a stronger effect when the air temperature on the land is greatest and the air temperature above the water is coldest. At night, the breezes are reversed, moving from the land toward the ocean. Taking into consideration the specific heat capacities of water and sand (which is about the same as that of concrete), explain how sea breezes form during the day and change direction at night. https://seo-videos.collegephysicsanswers.com/ch14/ap08/ed1ch14ap08.mp4 246 4 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hydraulic-system-backhoe-used-lift-load-shown-figure-1144-calculate-force-fs The hydraulic system of a backhoe is used to lift a load as shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe83/thumbs-ed1ch11pe83-00002.png The hydraulic system of a backhoe is used to lift a load as shown in Figure 11.44. (a) Calculate the force F_s the slave cylinder must exert to support the 400-kg load and the 150-kg brace and shovel. (b) What is the pressure in the hydraulic fluid if the slave cylinder is 2.50 cm in diameter? (c) What force would you have to exert on a lever with a mechanical advantage of 5.00 acting on a master cylinder 0.800 cm in diameter to create this pressure? https://seo-videos.collegephysicsanswers.com/ch11/pe83/ed1ch11pe83.mp4 392 20 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-what-happens-system-inside-refrigerator-or-freezer-terms-heat-transfer Describe what happens to the system inside of a refrigerator or… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap06/thumbs-ed1ch15ap06-00002.png Describe what happens to the system inside of a refrigerator or freezer in terms of heat transfer, work, and conservation of energy. Confine yourself to time periods in which the door is closed. https://seo-videos.collegephysicsanswers.com/ch15/ap06/ed1ch15ap06.mp4 168 4 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-process-cd-figure-1544-does-represent-work-done-or-system-and-how-much Consider process CD in Figure 15.44. Does this represent work done by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap08/thumbs-ed1ch15ap08-00002.png Consider process CD in Figure 15.44. Does this represent work done by or on the system, and how much? https://seo-videos.collegephysicsanswers.com/ch15/ap08/ed1ch15ap08.mp4 133 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/first-step-thermodynamic-cycle-isobaric-process-increasing-volume-second The first step of a thermodynamic cycle is an isobaric process with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap10/thumbs-ed1ch15ap10-00002.png The first step of a thermodynamic cycle is an isobaric process with increasing volume. The second is an isochoric process, with decreasing pressure. The last step may be either an isothermal or adiabatic process, ending at the starting point of the isobaric process. Sketch a graph of these two possibilities, and comment on which will have greater net work per cycle. https://seo-videos.collegephysicsanswers.com/ch15/ap10/ed1ch15ap10.mp4 369 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/graph-shows-simple-harmonic-motion-mass-m-attached-spring-spring-constant-k-what The graph shows the simple harmonic motion of a mass m attached to a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap08/thumbs-ed1ch16ap08-00002.png The graph shows the simple harmonic motion of a mass m attached to a spring with spring constant k. What is the displacement at time 8\pi? (a) 1 m(b) 0 m(c) Not defined(d) −1 m https://seo-videos.collegephysicsanswers.com/ch16/ap08/ed1ch16ap08.mp4 47 12 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spring-has-spring-constant-80-ncdottextrmm-1-force-required-compress-spring-5-cm A spring has a spring constant of 80 N \cdot m ^{-1} force required… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap02/thumbs-ed1ch16ap02-00002.png A spring has a spring constant of 80 N \cdot m ^{-1} force required to (a) compress the spring by 5 cm and (b) expand the spring by 15 cm? https://seo-videos.collegephysicsanswers.com/ch16/ap02/ed1ch16ap02.mp4 114 10 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pressure-spinal-fluid-measured-shown-figure-1142-if-pressure-spinal-fluid-100-mm Pressure in the spinal fluid is measured as shown in Figure 11.42. If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe75/thumbs-ed1ch11pe75-00002.png Pressure in the spinal fluid is measured as shown in Figure 11.42. If the pressure in the spinal fluid is 10.0 mm Hg: (a) What is the reading of the water manometer in cm water? (b) What is the reading if the person sits up, placing the top of the fluid 60 cm above the tap? The fluid density is 1.05 g/mL. https://seo-videos.collegephysicsanswers.com/ch11/pe75/ed1ch11pe75.mp4 113 43 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-attached-string-length-4-m-make-pendulum-pendulum-placed-location-away A ball is attached to a string of length 4 m to make a pendulum. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap10/thumbs-ed1ch16ap10-00002.png A ball is attached to a string of length 4 m to make a pendulum. The pendulum is placed at a location that is away from the Earth’s surface by twice the radius of the Earth. What is the acceleration due to gravity at that height and what is the period of the oscillations? https://seo-videos.collegephysicsanswers.com/ch16/ap10/ed1ch16ap10.mp4 97 36 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/time-rate-change-mechanical-energy-damped-oscillator-always-0-negative-positive The time rate of change of mechanical energy for a damped oscillator… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap16/thumbs-ed1ch16ap16-00002.png The time rate of change of mechanical energy for a damped oscillator is always: (a) 0(b) Negative(c) Positive(d) Undefined https://seo-videos.collegephysicsanswers.com/ch16/ap16/ed1ch16ap16.mp4 54 4 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tom-has-two-pendulums-him-pendulum-1-has-ball-mass-01-kg-attached-it-and-has Tom has two pendulums with him. Pendulum 1 has a ball of mass 0.1 kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap12/thumbs-ed1ch16ap12-00002.png Tom has two pendulums with him. Pendulum 1 has a ball of mass 0.1 kg attached to it and has a length of 5 m. Pendulum 2 has a ball of mass 0.5 kg attached to a string of length 1 m. How does mass of the ball affect the frequency of the pendulum? Which pendulum will have a higher frequency and why? https://seo-videos.collegephysicsanswers.com/ch16/ap12/ed1ch16ap12.mp4 87 12 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-which-points-represent-points-constructive-interference-b-f-b-c-d-e-f-c-d In this figure which points represent the points of constructive… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap26/thumbs-ed1ch16ap26-00002.png In this figure which points represent the points of constructive interference? (a) A, B, F(b) A, B, C, D, E, F(c) A, C, D, E(d) A, B, D https://seo-videos.collegephysicsanswers.com/ch16/ap26/ed1ch16ap26.mp4 68 6 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/transverse-wave-traveling-left-right-which-following-correct-about-motion A transverse wave is traveling left to right. Which of the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap22/thumbs-ed1ch16ap22-00002.png A transverse wave is traveling left to right. Which of the following is correct about the motion of particles in the wave? (a) The particles move up and down when the wave travels in a vacuum.(b) The particles move left and right when the wave travels in a medium.(c) The particles move up and down when the wave travels in a medium.(d) The particles move right and left when the wave travels in a vacuum. https://seo-videos.collegephysicsanswers.com/ch16/ap22/ed1ch16ap22.mp4 115 8 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/preceding-question-what-would-happen-amplitude-waves-generated-way-also-consider In the preceding question, what would happen to the amplitude of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap28/thumbs-ed1ch16ap28-00002.png In the preceding question, what would happen to the amplitude of the waves generated in this way? Also, consider another scenario where the string is snapped up from one end and down from the other end. What will happen in this situation? https://seo-videos.collegephysicsanswers.com/ch16/ap28/ed1ch16ap28.mp4 55 4 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/guitar-string-has-number-frequencies-which-it-vibrates-naturally-which-following A guitar string has a number of frequencies at which it vibrates… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap24/thumbs-ed1ch16ap24-00002.png A guitar string has a number of frequencies at which it vibrates naturally. Which of the following is true in this context? (a) The resonant frequencies of the string are integer multiples of fundamental frequencies.(b) The resonant frequencies of the string are not integer multiples of fundamental frequencies.(c) They have harmonic overtones.(d) None of the above https://seo-videos.collegephysicsanswers.com/ch16/ap24/ed1ch16ap24.mp4 114 4 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-these-figures-answer-following-questions-which-two-pendulums-oscillates Use these figures to answer the following questions. (a) Which of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap06/thumbs-ed1ch16ap06-00002.png Use these figures to answer the following questions. (a) Which of the two pendulums oscillates with larger amplitude?(b) Which of the two pendulums oscillates at a higher frequency? https://seo-videos.collegephysicsanswers.com/ch16/ap06/ed1ch16ap06.mp4 135 12 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1758-figure-shows-two-tubes-are-identical-except-their-slightly-different Figure 17.58 This figure shows two tubes that are identical except… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap20/thumbs-ed1ch17ap20-00002.png Figure 17.58 This figure shows two tubes that are identical except for their slightly different lengths. Both tubes have one open end and one closed end. A speaker connected to a variable frequency generator is placed in front of the tubes, as shown. The speaker is set to produce a note of very low frequency when turned on. The frequency is then slowly increased to produce resonances in the tubes. Students observe that at first only one of the tubes resonates at a time. Later, as the frequency gets very high, there are times when both tubes resonate. https://seo-videos.collegephysicsanswers.com/ch17/ap20/ed1ch17ap20.mp4 129 4 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/group-students-were-tasked-collecting-information-about-standing-waves-table A group of students were tasked with collecting information about… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap16/thumbs-ed1ch17ap16-00002.png A group of students were tasked with collecting information about standing waves. Table 17.10 a series of their data, showing the length of an air column and a resonant frequency present when the column is struck. (a) From their data, determine whether the air column was open or closed on each end.(b) Predict the resonant frequency of the column at a length of 2.5 meters. https://seo-videos.collegephysicsanswers.com/ch17/ap16/ed1ch17ap16.mp4 205 4 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/guitar-string-length-l-bound-both-ends-table-1711-shows-strings-harmonic A guitar string of length L is bound at both ends. Table 17.11 shows… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap22/thumbs-ed1ch17ap22-00002.png A guitar string of length L is bound at both ends. Table 17.11 shows the string’s harmonic frequencies when struck. (a) Based on the information above, what is the speed of the wave within the string?(b) The guitarist then slides her finger along the neck of the guitar, changing the string length as a result. Calculate the fundamental frequency of the string and wave speed present if the string length is reduced to \dfrac{2}{3}L. https://seo-videos.collegephysicsanswers.com/ch17/ap22/ed1ch17ap22.mp4 410 4 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/classic-millikan-oil-drop-experiment-setup-shown-below-experiment-oil-drops-are The classic Millikan oil drop experiment setup is shown below. In… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap24/thumbs-ed1ch18ap24-00002.png The classic Millikan oil drop experiment setup is shown below. In this experiment oil drops are suspended in a vertical electric field against the gravitational force to measure their charge. If the mass of a negatively charged drop suspended in an electric field of 1.18 x 10^{-4} N/C strength is 3.85 x 10^{-21} g , find the number of excess electrons in the drop. https://seo-videos.collegephysicsanswers.com/ch18/ap24/ed1ch18ap24.mp4 83 8 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-false-if-charge-one-particles-doubled-and-second-unchanged-force Which of the following is false? (a) If the charge of one of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap26/thumbs-ed1ch18ap26-00002.png Which of the following is false? (a) If the charge of one of the particles is doubled and that of the second is unchanged, the force will become 2F.(b) If the charge of one of the particles is doubled and that of the second is halved, the force will remain F.(c) If the charge of both the particles is doubled, the force will become 4F.(d) None of the above. https://seo-videos.collegephysicsanswers.com/ch18/ap26/ed1ch18ap26.mp4 71 4 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-massive-positively-charged-particles-are-initially-held-fixed-distance-apart Two massive, positively charged particles are initially held a fixed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap28/thumbs-ed1ch18ap28-00002.png Two massive, positively charged particles are initially held a fixed distance apart. When they are moved farther apart, the magnitude of their mutual gravitational force changes by a factor of n. Which of the following indicates the factor by which the magnitude of their mutual electrostatic force changes? (a) \dfrac{1}{n^2}(b) \dfrac{1}{n}(c) n(d) n^2 https://seo-videos.collegephysicsanswers.com/ch18/ap28/ed1ch18ap28.mp4 146 6 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/system-three-point-charges-has-100-mc-charge-origin-200-mc-charge-x30-cm-and-300 A system of three point charges has a 1.00 μC charge at the origin, a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap10/thumbs-ed1ch19ap10-00002.png A system of three point charges has a 1.00 μC charge at the origin, a −2.00 μC charge at x=30 cm, and a 3.00 μC charge at x=70 cm. What is the total stored potential energy of this configuration? https://seo-videos.collegephysicsanswers.com/ch19/ap10/ed1ch19ap10.mp4 366 8 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/new-kind-electron-gun-has-rear-plate-250-kv-grounded-plate-200-cm-front-and-250 A new kind of electron gun has a rear plate at −25.0 kV, a grounded… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap22/thumbs-ed1ch19ap22-00002.png A new kind of electron gun has a rear plate at −25.0 kV, a grounded plate 2.00 cm in front of that, and a +25.0 kV plate 4.00 cm in front of that. What is the magnitude of the average electric field? https://seo-videos.collegephysicsanswers.com/ch19/ap22/ed1ch19ap22.mp4 190 2 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-two-conducting-plates-placed-adjacent-sides-square-1-m-space-between Consider two conducting plates, placed on adjacent sides of a square,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap26/thumbs-ed1ch19ap26-00002.png Consider two conducting plates, placed on adjacent sides of a square, but with a 1-m space between the corner of the square and the plate. These plates are not touching, not centered on each other, but are at right angles. Each plate is 1 m wide. If the plates are held at a fixed potential difference \Delta V, draw the equipotential lines for this system. https://seo-videos.collegephysicsanswers.com/ch19/ap26/ed1ch19ap26.mp4 227 4 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-two-conducting-plates-placed-adjacent-sides-square-1-m-space-between-0 Consider two conducting plates, placed on adjacent sides of a square,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap30/thumbs-ed1ch19ap30-00002.png Consider two conducting plates, placed on adjacent sides of a square, but with a 1-m space between the corner of the square and the plate. These plates are not touching, not centered on each other, but are at right angles. Each plate is 1 m wide. If the plates are held at a fixed potential difference ΔV, sketch the path of both a positively charged object placed between the near ends, and a negatively charged object placed near the open ends. https://seo-videos.collegephysicsanswers.com/ch19/ap30/ed1ch19ap30.mp4 144 6 2021-03-20 yes 2021-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/table-below-gives-voltages-and-currents-recorded-across-resistor-plot-graph-and The table below gives the voltages and currents recorded across a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap06/thumbs-ed1ch20ap06-00002.png The table below gives the voltages and currents recorded across a resistor. (a) Plot the graph and comment on the shape.(b) Calculate the value of the resistor. https://seo-videos.collegephysicsanswers.com/ch20/ap06/ed1ch20ap06.mp4 105 4 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/circuit-parallel-combination-six-16-ko-resistors-connected-series-parallel-0 In a circuit, a parallel combination of six 1.6-kΩ resistors is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap02/thumbs-ed1ch21ap02-00002.png In a circuit, a parallel combination of six 1.6-kΩ resistors is connected in series with a parallel combination of four 2.4-kΩ resistors. If the source voltage is 24 V, what will be the percentage of total current in one of the 2.4-kΩ resistors? (a) 10%(b) 12%(c) 20%(d) 25% https://seo-videos.collegephysicsanswers.com/ch21/ap02/ed1ch21ap02.mp4 127 2 2021-04-01 yes 2021-04-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/coil-circular-cross-section-and-20-turns-rotating-rate-400-rpm-between-poles A coil with circular cross section and 20 turns is rotating at a rate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap04/thumbs-ed1ch23ap04-00002.png A coil with circular cross section and 20 turns is rotating at a rate of 400 rpm between the poles of a magnet. If the magnetic field strength is 0.6 T and peak voltage is 0.2 V, what is the radius of the coil? If the emf of the coil is zero at t = 0 s, when will it reach its peak emf? https://seo-videos.collegephysicsanswers.com/ch23/ap04/ed1ch23ap04.mp4 219 8 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/students-lab-group-are-given-plastic-cube-hollow-cube-shaped-space-middle-0 Students in a lab group are given a plastic cube with a hollow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap08/thumbs-ed1ch25ap08-00002.png Students in a lab group are given a plastic cube with a hollow cube-shaped space in the middle that fills about half the volume of the cube. The index of refraction of the plastic is known. The hollow space is filled with a gas, and the students are asked to collect the data needed to find the index of refraction of the gas. The students take the following set of measurements: (a) Angle of incidence of the light in the air above the plastic block: 30°(b) Angle of refraction of the beam as it enters the plastic from the air: 45°(c) Angle of refraction of the beam as it enters the plastic from the gas: 45° The three measurements are shared with a second lab group. Can the second group determine a value for the index of refraction of the gas from only this data? (a) Yes, because they have information about the beam in air and in the plastic above the gas.(b) Yes, because they have information about the beam on both sides of the gas.(c) No, because they need additional information to determine the angle of the beam in the gas.(d) No, because they do not have multiple data points to analyze. https://seo-videos.collegephysicsanswers.com/ch25/ap08/ed1ch25ap08.mp4 103 4 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-travels-air-water-what-happens-frequency-light-consider-how-wavelength-and As light travels from air into water, what happens to the frequency… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap12/thumbs-ed1ch25ap12-00002.png As light travels from air into water, what happens to the frequency of the light? Consider how the wavelength and speed of light change; then use the relationship between speed, wavelength, and frequency for a wave. What about light that is reflected off the surface of water? What happens to its wavelength, speed, and frequency? https://seo-videos.collegephysicsanswers.com/ch25/ap12/ed1ch25ap12.mp4 150 8 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ideal-step-transformer-turn-ratio-130-supplied-input-power-120-w-if-output An ideal step-up transformer with turn ratio 1:30 is supplied with an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap06/thumbs-ed1ch23ap06-00002.png An ideal step-up transformer with turn ratio 1:30 is supplied with an input power of 120 W. If the output voltage is 210 V, calculate the output power and input current. https://seo-videos.collegephysicsanswers.com/ch23/ap06/ed1ch23ap06.mp4 283 8 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-light-rays-originate-object-distance-50-cm-front-flat-mirror-diverging-angle Two light rays originate from object A, at a distance of 50 cm in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap04/thumbs-ed1ch25ap04-00002.png Two light rays originate from object A, at a distance of 50 cm in front of a flat mirror, diverging at an angle of 10°. Both of the rays strike a flat mirror and reflect. Two light rays originate from object B, at a distance of 50 cm in front of a convex mirror, diverging at an angle of 10°. Both of the rays strike the convex mirror and reflect. For which object do the reflected rays appear to converge behind the mirror closer to the surface of the mirror, thus forming a closer (larger) image? Explain with the help of a sketch or diagram. https://seo-videos.collegephysicsanswers.com/ch25/ap04/ed1ch25ap04.mp4 183 6 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-converging-lens-unknown-focal-length-and-unknown-index-refraction-explain Given a converging lens of unknown focal length and unknown index of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap16/thumbs-ed1ch25ap16-00002.png Given a converging lens of unknown focal length and unknown index of refraction, explain what materials you would need and what procedure you would follow in order to experimentally determine the focal length of the lens. https://seo-videos.collegephysicsanswers.com/ch25/ap16/ed1ch25ap16.mp4 62 2 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mirror-shows-inverted-image-equal-size-object-when-object-20-cm-away-mirror A mirror shows an inverted image that is equal in size to the object… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap20/thumbs-ed1ch25ap20-00002.png A mirror shows an inverted image that is equal in size to the object when the object is 20 cm away from the mirror. Describe the image that will be formed if this object is moved to a distance of 5 cm away from the mirror. https://seo-videos.collegephysicsanswers.com/ch25/ap20/ed1ch25ap20.mp4 135 8 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/white-light-projected-tablecloth-using-light-reflecting-tablecloth-observer A white light is projected onto a tablecloth. Using the light… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap06/thumbs-ed1ch26ap06-00002.png A white light is projected onto a tablecloth. Using the light reflecting off the tablecloth, an observer determines that the color of the tablecloth is blue. (a) Using the wave model of light, explain how the observer is capable of making this judgment.(b) Describe how using the particle model of light limits our explanation of the observer’s judgment. https://seo-videos.collegephysicsanswers.com/ch26/ap06/ed1ch26ap06.mp4 48 2 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-first-order-maximum-450-nm-wavelength-blue-light-falling-double-slits At what angle is the first-order maximum for 450-nm wavelength blue… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe06/thumbs-ed1ch27pe06-00002.png At what angle is the first-order maximum for 450-nm wavelength blue light falling on double slits separated by 0.0500 mm? https://seo-videos.collegephysicsanswers.com/ch27/pe06/ed1ch27pe06.mp4 113 176 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-fourth-order-maximum-situation-exercise-276 At what angle is the fourth-order maximum for the situation in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe12/thumbs-ed1ch27pe12-00002.png At what angle is the fourth-order maximum for the situation in [Exercise 27.6](https://collegephysicsanswers.com/openstax-solutions/what-angle-first-order-maximum-450-nm-wavelength-blue-light-falling-double-slits)? https://seo-videos.collegephysicsanswers.com/ch27/pe12/ed1ch27pe12.mp4 71 42 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-smallest-separation-between-two-slits-will-produce-second-order-maximum-any (a) What is the smallest separation between two slits that will… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe16/thumbs-ed1ch27pe16-00002.png (a) What is the smallest separation between two slits that will produce a second-order maximum for any visible light? (b) For all visible light? https://seo-videos.collegephysicsanswers.com/ch27/pe16/ed1ch27pe16.mp4 222 91 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2756-shows-double-slit-located-distance-x-screen-distance-center-screen Figure 27.56 shows a double slit located a distance x from a screen,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe18/thumbs-ed1ch27pe18-00002.png Figure 27.56 shows a double slit located a distance x from a screen, with the distance from the center of the screen given by y . When the distance d between the slits is relatively large, there will be numerous bright spots, called fringes. Show that, for small angles (where \sin{(\theta)} \approx \lambda , with \theta in radians), the distance between fringes is given by \Delta y = \dfrac{x\lambda}{d}Δy = xλ / d . https://seo-videos.collegephysicsanswers.com/ch27/pe18/ed1ch27pe18.mp4 246 153 3 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-current-through-hydrogen-gas-produces-several-distinct-wavelengths An electric current through hydrogen gas produces several distinct… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe26/thumbs-ed1ch27pe26-00002.png An electric current through hydrogen gas produces several distinct wavelengths of visible light. What are the wavelengths of the hydrogen spectrum, if they form first-order maxima at angles of 24.2°, 25.7°, 29.1°, 41.0° when projected on a diffraction grating having 10,000 lines per centimeter? Explicitly show how you follow the steps in Problem-Solving Strategies for Wave Optics. https://seo-videos.collegephysicsanswers.com/ch27/pe26/ed1ch27pe26.mp4 141 84 5 2021-04-10 yes 2021-04-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tv-broadcast-antennas-are-tallest-artificial-structures-earth-1987-720-kg TV broadcast antennas are the tallest artificial structures on Earth.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe32/thumbs-ed1ch05pe32-00002.png TV broadcast antennas are the tallest artificial structures on Earth. In 1987, a 72.0-kg physicist placed himself and 400 kg of equipment at the top of one 610-m high antenna to perform gravity experiments. By how much was the antenna compressed, if we consider it to be equivalent to a steel cylinder 0.150 m in radius? https://seo-videos.collegephysicsanswers.com/ch05/pe32/ed1ch05pe32.mp4 107 304 5 2019-10-07 yes 2019-10-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-m-tall-hollow-aluminum-flagpole-equivalent-stiffness-solid-cylinder-400-cm A 20.0-m tall hollow aluminum flagpole is equivalent in stiffness to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe34/thumbs-ed1ch05pe34-00002.png A 20.0-m tall hollow aluminum flagpole is equivalent in stiffness to a solid cylinder 4.00 cm in diameter. A strong wind bends the pole much as a horizontal force of 900 N exerted at the top would. How far to the side does the top of the pole flex? https://seo-videos.collegephysicsanswers.com/ch05/pe34/ed1ch05pe34.mp4 120 257 5 2019-10-07 yes 2019-10-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-number-lines-centimeter-diffraction-grating-can-have-and-produce What is the maximum number of lines per centimeter a diffraction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe28/thumbs-ed1ch27pe28-00002.png What is the maximum number of lines per centimeter a diffraction grating can have and produce a complete first- order spectrum for visible light? https://seo-videos.collegephysicsanswers.com/ch27/pe28/ed1ch27pe28.mp4 307 60 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-angle-third-diffraction-minimum-633-nm-light-falling-slit-width-200textrm (a) Find the angle of the third diffraction minimum for 633-nm light… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe50/thumbs-ed1ch27pe50-00002.png (a) Find the angle of the third diffraction minimum for 633-nm light falling on a slit of width 20.0 \mu m . (b) What slit width would place this minimum at 85.0°? Explicitly show how you follow the steps in Problem-Solving Strategies for Wave Optics https://seo-videos.collegephysicsanswers.com/ch27/pe50/ed1ch27pe50.mp4 124 31 5 2021-04-15 yes 2021-04-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-width-single-slit-multiples-l-will-produce-first-minimum-wavelength (a) What is the minimum width of a single slit (in multiples of λ )… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe52/thumbs-ed1ch27pe52-00002.png (a) What is the minimum width of a single slit (in multiples of λ ) that will produce a first minimum for a wavelength \lambda? (b) What is its minimum width if it produces 50 minima? (c) 1000 minima? https://seo-videos.collegephysicsanswers.com/ch27/pe52/ed1ch27pe52.mp4 125 17 5 2021-04-15 yes 2021-04-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-told-not-shoot-until-you-see-whites-their-eyes-if-eyes-are-separated-65 You are told not to shoot until you see the whites of their eyes. If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe64/thumbs-ed1ch27pe64-00002.png You are told not to shoot until you see the whites of their eyes. If the eyes are separated by 6.5 cm and the diameter of your pupil is 5.0 mm, at what distance can you resolve the two eyes using light of wavelength 555 nm? https://seo-videos.collegephysicsanswers.com/ch27/pe64/ed1ch27pe64.mp4 145 14 2021-04-16 yes 2021-04-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/aircraft-maintenance-technician-walks-past-tall-hangar-door-acts-single-slit An aircraft maintenance technician walks past a tall hangar door that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe56/thumbs-ed1ch27pe56-00002.png An aircraft maintenance technician walks past a tall hangar door that acts like a single slit for sound entering the hangar. Outside the door, on a line perpendicular to the opening in the door, a jet engine makes a 600-Hz sound. At what angle with the door will the technician observe the first minimum in sound intensity if the vertical opening is 0.800 m wide and the speed of sound is 340 m/s? https://seo-videos.collegephysicsanswers.com/ch27/pe56/ed1ch27pe56.mp4 138 22 5 2021-04-16 yes 2021-04-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/headlights-car-are-13-m-apart-what-maximum-distance-which-eye-can-resolve-these The headlights of a car are 1.3 m apart. What is the maximum distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe66/thumbs-ed1ch27pe66-00002.png The headlights of a car are 1.3 m apart. What is the maximum distance at which the eye can resolve these two headlights? Take the pupil diameter to be 0.40 cm. https://seo-videos.collegephysicsanswers.com/ch27/pe66/ed1ch27pe66.mp4 147 56 2021-04-16 yes 2021-04-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/amateur-astronomer-wants-build-telescope-diffraction-limit-will-allow-him-see-if An amateur astronomer wants to build a telescope with a diffraction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe68/thumbs-ed1ch27pe68-00002.png An amateur astronomer wants to build a telescope with a diffraction limit that will allow him to see if there are people on the moons of Jupiter. (a) What diameter mirror is needed to be able to see 1.00 m detail on a Jovian Moon at a distance of 7.50 x 10^{8} km from Earth? The wavelength of light averages 600 nm. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch27/pe68/ed1ch27pe68.mp4 179 14 2021-04-17 yes 2021-04-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/film-soapy-water-n-133-top-plastic-cutting-board-has-thickness-233-nm-what-color A film of soapy water ( n = 1.33 ) on top of a plastic cutting board… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe74/thumbs-ed1ch27pe74-00002.png A film of soapy water ( n = 1.33 ) on top of a plastic cutting board has a thickness of 233 nm. What color is most strongly reflected if it is illuminated perpendicular to its surface? https://seo-videos.collegephysicsanswers.com/ch27/pe74/ed1ch27pe74.mp4 293 98 2021-04-17 yes 2021-04-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-lens-system-be-used-primarily-700-nm-red-light-what-second Suppose you have a lens system that is to be used primarily for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe76/thumbs-ed1ch27pe76-00002.png Suppose you have a lens system that is to be used primarily for 700-nm red light. What is the second thinnest coating of fluorite (magnesium fluoride) that would be non- reflective for this wavelength? https://seo-videos.collegephysicsanswers.com/ch27/pe76/ed1ch27pe76.mp4 313 76 3.5 2021-04-17 yes 2021-04-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nonmechanical-water-meter-could-utilize-hall-effect-applying-magnetic-field A nonmechanical water meter could utilize the Hall effect by applying… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe25/thumbs-ed1ch22pe25-00002.png A nonmechanical water meter could utilize the Hall effect by applying a magnetic field across a metal pipe and measuring the Hall voltage produced. What is the average fluid velocity in a 3.00-cm-diameter pipe, if a 0.500-T field across it creates a 60.0-mV Hall voltage? https://seo-videos.collegephysicsanswers.com/ch22/pe25/ed1ch22pe25.mp4 38 97 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/end-example-278-it-was-stated-intensity-polarized-light-reduced-900-its-original At the end of Example 27.8, it was stated that the intensity of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe88/thumbs-ed1ch27pe88-00002.png At the end of Example 27.8, it was stated that the intensity of polarized light is reduced to 90.0% of its original value by passing through a polarizing filter with its axis at an angle of 18.4° to the direction of polarization. Verify this statement. https://seo-videos.collegephysicsanswers.com/ch27/pe88/ed1ch27pe88.mp4 55 20 5 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-hall-voltage-across-wires-made-same-material-carrying-identical-currents Show that the Hall voltage across wires made of the same material,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe29/thumbs-ed1ch22pe29-00002.png Show that the Hall voltage across wires made of the same material, carrying identical currents, and subjected to the same magnetic field is inversely proportional to their diameters. (Hint: Consider how drift velocity depends on wire diameter.) https://seo-videos.collegephysicsanswers.com/ch22/pe29/ed1ch22pe29.mp4 128 18 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2734-shows-two-750-cm-long-glass-slides-illuminated-pure-589-nm Figure 27.34 shows two 7.50-cm-long glass slides illuminated by pure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe80/thumbs-ed1ch27pe80-00002.png Figure 27.34 shows two 7.50-cm-long glass slides illuminated by pure 589-nm wavelength light incident perpendicularly. The top slide touches the bottom slide at one end and rests on some debris at the other end, forming a wedge of air. How thick is the debris, if the dark bands are 1.00 mm apart? https://seo-videos.collegephysicsanswers.com/ch27/pe80/ed1ch27pe80.mp4 451 40 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-needed-between-direction-polarized-light-and-axis-polarizing-filter What angle is needed between the direction of polarized light and the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe84/thumbs-ed1ch27pe84-00002.png What angle is needed between the direction of polarized light and the axis of a polarizing filter to cut its intensity in half? https://seo-videos.collegephysicsanswers.com/ch27/pe84/ed1ch27pe84.mp4 82 152 5 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-exercise-2771-take-light-be-incident-45circ-angle Repeat [Exercise… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe82/thumbs-ed1ch27pe82-00002.png Repeat [Exercise 27.71](https://collegephysicsanswers.com/openstax-solutions/oil-slick-water-120-nm-thick-and-illuminated-white-light-incident-perpendicular), but take the light to be incident at a 45° angle. https://seo-videos.collegephysicsanswers.com/ch27/pe82/ed1ch27pe82.mp4 446 8 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-light-inside-crown-glass-completely-polarized-when-reflected-water At what angle is light inside crown glass completely polarized when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe94/thumbs-ed1ch27pe94-00002.png At what angle is light inside crown glass completely polarized when reflected from water, as in a fish tank? https://seo-videos.collegephysicsanswers.com/ch27/pe94/ed1ch27pe94.mp4 67 14 5 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-if-i-intensity-light-transmitted-two-polarizing-filters-axes-angle-theta Prove that, if I is the intensity of light transmitted by two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe90/thumbs-ed1ch27pe90-00002.png Prove that, if I is the intensity of light transmitted by two polarizing filters with axes at an angle \theta and I' is the intensity when the axes are at an angle 90.0° - \theta, then I + I' = I_0, the original intensity. (Hint: Use the trigonometric identities \cos{(90.0° - \theta)} = \sin{\theta} and \cos ^2 \theta + \sin ^2 \theta = 1.) https://seo-videos.collegephysicsanswers.com/ch27/pe90/ed1ch27pe90.mp4 165 18 5 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-brewsters-angle-light-traveling-water-reflected-crown-glass What is Brewster’s angle for light traveling in water that is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe92/thumbs-ed1ch27pe92-00002.png What is Brewster’s angle for light traveling in water that is reflected from crown glass? https://seo-videos.collegephysicsanswers.com/ch27/pe92/ed1ch27pe92.mp4 57 18 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-polarizing-filter-reduces-intensity-polarized-light-500-its-original-value If a polarizing filter reduces the intensity of polarized light to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe98/thumbs-ed1ch27pe98-00002.png If a polarizing filter reduces the intensity of polarized light to 50.0% of its original value, by how much are the electric and magnetic fields reduced? https://seo-videos.collegephysicsanswers.com/ch27/pe98/ed1ch27pe98.mp4 130 22 2021-04-20 yes 2021-04-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/double-slit-experiment-monochromatic-light-separation-between-slits-2-mm-if In a double slit experiment with monochromatic light, the separation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap04/thumbs-ed1ch27ap04-00002.png In a double slit experiment with monochromatic light, the separation between the slits is 2 mm. If the screen is moved by 100 mm toward the slits, the distance between the central bright line and the second bright line changes by 32 μm. Calculate the wavelength of the light used for the experiment. https://seo-videos.collegephysicsanswers.com/ch27/ap04/ed1ch27ap04.mp4 281 12 2021-04-21 yes 2021-04-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/draw-figure-show-resultant-wave-produced-when-two-coherent-waves-equal Draw a figure to show the resultant wave produced when two coherent… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap06/thumbs-ed1ch27ap06-00002.png Draw a figure to show the resultant wave produced when two coherent waves (with equal amplitudes x) interact in phase. What is the amplitude of the resultant wave? If the phase difference between the coherent waves is changed to 60o, what will be new amplitude? https://seo-videos.collegephysicsanswers.com/ch27/ap06/ed1ch27ap06.mp4 310 4 2021-04-21 yes 2021-04-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-ratio-amplitudes-two-waves-double-slit-experiment-34-calculate-ratio-minimum If the ratio of amplitudes of the two waves in a double slit… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap08/thumbs-ed1ch27ap08-00002.png If the ratio of amplitudes of the two waves in a double slit experiment is 3:4, calculate the ratio of minimum intensity (dark fringe) to maximum intensity (bright fringe). https://seo-videos.collegephysicsanswers.com/ch27/ap08/ed1ch27ap08.mp4 211 8 2021-04-22 yes 2021-04-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/monochromatic-light-passing-through-single-slit-forms-diffraction-pattern-screen Monochromatic light passing through a single slit forms a diffraction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap12/thumbs-ed1ch27ap12-00002.png Monochromatic light passing through a single slit forms a diffraction pattern on a screen. If the second minimum occurs at an angle of 15°, find the angle for the fourth minimum. https://seo-videos.collegephysicsanswers.com/ch27/ap12/ed1ch27ap12.mp4 109 8 2021-04-22 yes 2021-04-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/white-light-passed-through-diffraction-grating-screen-some-distance-away-nth White light is passed through a diffraction grating to a screen some… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap10/thumbs-ed1ch27ap10-00002.png White light is passed through a diffraction grating to a screen some distance away. The nth-order diffraction angle for the longest wavelength (760 nm) is 53.13°. Find the nth- order diffraction angle for the shortest wavelength (380 nm). What will be the change in the two angles if the distance between the screen and the grating is doubled? https://seo-videos.collegephysicsanswers.com/ch27/ap10/ed1ch27ap10.mp4 226 10 2021-04-22 yes 2021-04-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/film-magnesium-fluoride-n-138-used-coat-glass-camera-lens-n-152-if-thickness A film of magnesium fluoride (n = 1.38) is used to coat a glass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap16/thumbs-ed1ch27ap16-00002.png A film of magnesium fluoride (n = 1.38) is used to coat a glass camera lens (n = 1.52). If the thickness of the film is 105 nm, calculate the wavelength of visible light that will have the most limited reflection. https://seo-videos.collegephysicsanswers.com/ch27/ap16/ed1ch27ap16.mp4 372 8 2021-04-22 yes 2021-04-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-radius-curvature-path-250-mev-proton-moving-perpendicularly-120-t-field Find the radius of curvature of the path of a 25.0-MeV proton moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe75/thumbs-ed1ch22pe75-00002.png Find the radius of curvature of the path of a 25.0-MeV proton moving perpendicularly to the 1.20-T field of a cyclotron. https://seo-videos.collegephysicsanswers.com/ch22/pe75/ed1ch22pe75.mp4 162 36 5 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-gamma-if-v-0100c-b-if-v-0900c (a) What is \gamma if v = 0.100c ? (b) If v = 0.900c ? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe02/thumbs-ed1ch28pe02-00002.png (a) What is \gamma if v = 0.100c ? (b) If v = 0.900c ? https://seo-videos.collegephysicsanswers.com/ch28/pe02/ed1ch28pe02.mp4 54 81 5 2021-04-23 yes 2021-04-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-particle-called-kaon-created-cosmic-radiation-striking-atmosphere-it Suppose a particle called a kaon is created by cosmic radiation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe04/thumbs-ed1ch28pe04-00002.png Suppose a particle called a kaon is created by cosmic radiation striking the atmosphere. It moves by you at 0.980c, and it lives 1.24 x 10^{-8} s when at rest relative to an observer. How long does it live as you observe it? https://seo-videos.collegephysicsanswers.com/ch28/pe04/ed1ch28pe04.mp4 60 146 5 2021-04-23 yes 2021-04-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-relativistic-effects-are-be-less-3-then-g-must-be-less-103-what-relative If relativistic effects are to be less than 3%, then γ must be less… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe08/thumbs-ed1ch28pe08-00002.png If relativistic effects are to be less than 3%, then γ must be less than 1.03. At what relative velocity is \gamma = 1.03? https://seo-videos.collegephysicsanswers.com/ch28/pe08/ed1ch28pe08.mp4 96 59 5 2021-04-23 yes 2021-04-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-relative-velocity-gamma-200-b-what-relative-velocity-gamma-100 (a) At what relative velocity is \gamma = 2.00? (b) At what relative… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe10/thumbs-ed1ch28pe10-00002.png (a) At what relative velocity is \gamma = 2.00? (b) At what relative velocity is \gamma = 10.0? https://seo-videos.collegephysicsanswers.com/ch28/pe10/ed1ch28pe10.mp4 96 39 5 2021-04-23 yes 2021-04-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-current-through-loop-needed-create-maximum-torque-900-ncdottextrmm-loop-has Find the current through a loop needed to create a maximum torque of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe43/thumbs-ed1ch22pe43-00002.png Find the current through a loop needed to create a maximum torque of 9.00 N \cdot m The loop has 50 square turns that are 15.0 cm on a side and is in a uniform 0.800-T magnetic field. https://seo-videos.collegephysicsanswers.com/ch22/pe43/ed1ch22pe43.mp4 81 124 4.3 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-needed-solenoid-described-exercise-2258-produce-magnetic-field-104 What current is needed in the solenoid described in Exercise 22.58 to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe65/thumbs-ed1ch22pe65-00002.png What current is needed in the solenoid described in Exercise 22.58 to produce a magnetic field 10^4 times the Earth’s magnetic field of 5.00 x 10^{-5} T ? https://seo-videos.collegephysicsanswers.com/ch22/pe65/ed1ch22pe65.mp4 50 45 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/measurements-affect-system-being-measured-such-current-loop-figure-2256-estimate Measurements affect the system being measured, such as the current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe67/thumbs-ed1ch22pe67-00002.png Measurements affect the system being measured, such as the current loop in Figure 22.56. (a) Estimate the field the loop creates by calculating the field at the center of a circular loop 20.0 cm in diameter carrying 5.00 A. (b) What is the smallest field strength this loop can be used to measure, if its field must alter the measured field by less than 0.0100%? https://seo-videos.collegephysicsanswers.com/ch22/pe67/ed1ch22pe67.mp4 188 27 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-magnitude-and-direction-magnetic-field-point-equidistant-wires-figure-2258a Find the magnitude and direction of the magnetic field at the point… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe69/thumbs-ed1ch22pe69-00002.png Find the magnitude and direction of the magnetic field at the point equidistant from the wires in Figure 22.58(a), using the rules of vector addition to sum the contributions from each wire. https://seo-videos.collegephysicsanswers.com/ch22/pe69/ed1ch22pe69.mp4 554 50 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-needed-top-wire-figure-2258a-produce-field-zero-point-equidistant What current is needed in the top wire in Figure 22.58(a) to produce… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe71/thumbs-ed1ch22pe71-00002.png What current is needed in the top wire in Figure 22.58(a) to produce a field of zero at the point equidistant from the wires, if the currents in the bottom two wires are both 10.0 A into the page? https://seo-videos.collegephysicsanswers.com/ch22/pe71/ed1ch22pe71.mp4 282 10 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bar-magnet-oriented-so-north-pole-bar-magnet-points-north-compass-needle-placed A bar magnet is oriented so that the north pole of the bar magnet… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap01/thumbs-ed1ch22ap01-00002.png A bar magnet is oriented so that the north pole of the bar magnet points north. A compass needle is placed to the north of the bar magnet. In which direction does the north pole of the compass needle point? (a) North(b) East(c) South(d) West https://seo-videos.collegephysicsanswers.com/ch22/ap01/ed1ch22ap01.mp4 54 4 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/iron-ferromagnetic-and-lead-diamagnetic-which-means-its-magnetic-domains-respond Iron is ferromagnetic and lead is diamagnetic, which means its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap05/thumbs-ed1ch22ap05-00002.png Iron is ferromagnetic and lead is diamagnetic, which means its magnetic domains respond in the opposite direction of ferromagnets but many orders of magnitude more weakly. The two blocks are placed in a magnetic field that points to the right. Which of the following best represents the orientations of the dipoles when the field is present? https://seo-videos.collegephysicsanswers.com/ch22/ap05/ed1ch22ap05.mp4 56 6 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/proton-moves-x-direction-and-encounters-uniform-magnetic-field-pointing-x A proton moves in the –x-direction and encounters a uniform magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap07/thumbs-ed1ch22ap07-00002.png A proton moves in the –x-direction and encounters a uniform magnetic field pointing in the +x-direction. In what direction is the resulting magnetic force on the proton? (a) The proton experiences no magnetic force.(b) +x-direction(c) −y-direction(d) +y-direction https://seo-videos.collegephysicsanswers.com/ch22/ap07/ed1ch22ap07.mp4 19 6 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wire-oriented-north-south-carries-current-south-wire-immersed-earths-magnetic A wire oriented north-south carries current south. The wire is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap09/thumbs-ed1ch22ap09-00002.png A wire oriented north-south carries current south. The wire is immersed in the Earth’s magnetic field, which is also oriented north-south (with a horizontal component pointing north). The Earth’s magnetic field also has a vertical component pointing down. What is the direction of the magnetic force felt by the wire? (a) West(b) East(c) Up(d) North https://seo-videos.collegephysicsanswers.com/ch22/ap09/ed1ch22ap09.mp4 71 2 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pendulum-set-so-its-bob-thin-copper-disk-swings-between-poles-permanent-magnet (a) A pendulum is set up so that its bob (a thin copper disk) swings… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe73/thumbs-ed1ch22pe73-00002.png (a) A pendulum is set up so that its bob (a thin copper disk) swings between the poles of a permanent magnet as shown in Figure 22.63. What is the magnitude and direction of the magnetic force on the bob at the lowest point in its path, if it has a positive 0.250 \mu C charge and is released from a height of 30.0 cm above its lowest point? The magnetic field strength is 1.50 T. (b) What is the acceleration of the bob at the bottom of its swing if its mass is 30.0 grams and it is hung from a flexible string? Be certain to include a free-body diagram as part of your analysis. https://seo-videos.collegephysicsanswers.com/ch22/pe73/ed1ch22pe73.mp4 300 23 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-values-given-mhd-drive-exercise-2236-and-assuming-force-uniformly-applied (a) Using the values given for an MHD drive in Exercise 22.36, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe77/thumbs-ed1ch22pe77-00002.png (a) Using the values given for an MHD drive in Exercise 22.36, and assuming the force is uniformly applied to the fluid, calculate the pressure created in N/m ^2 (b) Is this a significant fraction of an atmosphere?\**Exercise 22.36**: What force is exerted on the water in an MHD drive utilizing a 25.0-cm-diameter tube, if 100-A current is passed across the tube that is perpendicular to a 2.00-T magnetic field? (The relatively small size of this force indicates the need for very large currents and magnetic fields to make practical MHD drives.) https://seo-videos.collegephysicsanswers.com/ch22/pe77/ed1ch22pe77.mp4 108 64 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cyclotron-accelerates-charged-particles-shown-figure-2264-using-results-previous A cyclotron accelerates charged particles as shown in Figure 22.64.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe81/thumbs-ed1ch22pe81-00002.png A cyclotron accelerates charged particles as shown in Figure 22.64. Using the results of the previous problem, calculate the frequency of the accelerating voltage needed for a proton in a 1.20-T field. https://seo-videos.collegephysicsanswers.com/ch22/pe81/ed1ch22pe81.mp4 51 11 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/current-balance-used-define-ampere-designed-so-current-through-it-constant A current balance used to define the ampere is designed so that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe79/thumbs-ed1ch22pe79-00002.png A current balance used to define the ampere is designed so that the current through it is constant, as is the distance between wires. Even so, if the wires change length with temperature, the force between them will change. What percent change in force per degree will occur if the wires are copper? https://seo-videos.collegephysicsanswers.com/ch22/pe79/ed1ch22pe79.mp4 301 8 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-charge-baseball-thrown-350-ms-perpendicular-earths-500-times-10-5-t-field (a) Find the charge on a baseball, thrown at 35.0 m/s perpendicular… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe85/thumbs-ed1ch22pe85-00002.png (a) Find the charge on a baseball, thrown at 35.0 m/s perpendicular to the Earth’s 5.00 x 10^{-5} T field, that experiences a 1.00-N magnetic force. (b) What is unreasonable about this result? (c) Which assumption or premise is responsible? https://seo-videos.collegephysicsanswers.com/ch22/pe85/ed1ch22pe85.mp4 52 6 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/inventor-wants-generate-120-v-power-moving-100-m-long-wire-perpendicular-earths An inventor wants to generate 120-V power by moving a 1.00-m-long… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe87/thumbs-ed1ch22pe87-00002.png An inventor wants to generate 120-V power by moving a 1.00-m-long wire perpendicular to the Earth’s 5.00 x 10^{-5} T field. (a) Find the speed with which the wire must move. (b) What is unreasonable about this result? (c) Which assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch22/pe87/ed1ch22pe87.mp4 64 6 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-force-wire-carrying-current-due-east-location-where-earths-field (a) What is the direction of the force on a wire carrying a current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe83/thumbs-ed1ch22pe83-00002.png (a) What is the direction of the force on a wire carrying a current due east in a location where the Earth’s field is due north? Both are parallel to the ground. (b) Calculate the force per meter if the wire carries 20.0 A and the field strength is 3.00 x 10^{-5} T . (c) What diameter copper wire would have its weight supported by this force? (d) Calculate the resistance per meter and the voltage per meter needed. https://seo-videos.collegephysicsanswers.com/ch22/pe83/ed1ch22pe83.mp4 294 22 3 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/surveyor-100-m-long-straight-200-kv-dc-power-line-suspects-its-magnetic-field A surveyor 100 m from a long straight 200-kV DC power line suspects… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe89/thumbs-ed1ch22pe89-00002.png A surveyor 100 m from a long straight 200-kV DC power line suspects that its magnetic field may equal that of the Earth and affect compass readings. (a) Calculate the current in the wire needed to create a 5.00 x 10^{-5} T field at this distance. (b) What is unreasonable about this result? (c) Which assumption or premise is responsible? https://seo-videos.collegephysicsanswers.com/ch22/pe89/ed1ch22pe89.mp4 117 4 5 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-does-muon-example-281-travel-according-earth-bound-observer-b-how-far (a) How far does the muon in [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe14/thumbs-ed1ch28pe14-00002.png (a) How far does the muon in [Example 28.1](https://openstax.org/books/college-physics/pages/28-2-simultaneity-and-time-dilation#fs-id3081310) travel according to the Earth-bound observer? (b) How far does it travel as viewed by an observer moving with it? Base your calculation on its velocity relative to the Earth and the time it lives (proper time). (c) Verify that these two distances are related through length contraction \gamma = 3.20. https://seo-videos.collegephysicsanswers.com/ch28/pe14/ed1ch28pe14.mp4 144 164 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-spaceship-heading-straight-towards-earth-0750c-can-shoot-canister-0500c Suppose a spaceship heading straight towards the Earth at 0.750c can… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe20/thumbs-ed1ch28pe20-00002.png Suppose a spaceship heading straight towards the Earth at 0.750c can shoot a canister at 0.500c relative to the ship. (a) What is the velocity of the canister relative to the Earth, if it is shot directly at the Earth? (b) If it is shot directly away from the Earth? https://seo-videos.collegephysicsanswers.com/ch28/pe20/ed1ch28pe20.mp4 145 206 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-spaceship-approaching-earth-0100c-and-message-capsule-sent-toward-it-0100c If a spaceship is approaching the Earth at 0.100c and a message… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe22/thumbs-ed1ch28pe22-00002.png If a spaceship is approaching the Earth at 0.100c and a message capsule is sent toward it at 0.100c relative to the Earth, what is the speed of the capsule relative to the ship? https://seo-videos.collegephysicsanswers.com/ch28/pe22/ed1ch28pe22.mp4 178 131 4 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-galaxy-moving-away-earth-has-speed-1000-kms-and-emits-656-nm-light If a galaxy moving away from the Earth has a speed of 1000 km/s and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe24/thumbs-ed1ch28pe24-00002.png If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light characteristic of hydrogen (the most common element in the universe). (a) What wavelength would we observe on the Earth? (b) What type of electromagnetic radiation is this? (c) Why is the speed of the Earth in its orbit negligible here? https://seo-videos.collegephysicsanswers.com/ch28/pe24/ed1ch28pe24.mp4 137 82 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-missile-shot-one-spaceship-towards-another-it-leaves-first-0950c-and When a missile is shot from one spaceship towards another, it leaves… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe28/thumbs-ed1ch28pe28-00002.png When a missile is shot from one spaceship towards another, it leaves the first at 0.950c and approaches the other at 0.750c. What is the relative velocity of the two ships? https://seo-videos.collegephysicsanswers.com/ch28/pe28/ed1ch28pe28.mp4 169 116 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-velocity-proton-has-momentum-448times-10-19textrm-kgcdottextrmms Find the velocity of a proton that has a momentum of 4.48 x 10^{-19}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe40/thumbs-ed1ch28pe40-00002.png Find the velocity of a proton that has a momentum of 4.48 x 10^{-19} kg \cdot m/s . https://seo-videos.collegephysicsanswers.com/ch28/pe40/ed1ch28pe40.mp4 140 50 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-gamma-proton-has-momentum-100textrm-kgcdottextrmms-b-what-its-speed (a) Calculate \gamma for a proton that has a momentum of 1.00 kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe42/thumbs-ed1ch28pe42-00002.png (a) Calculate \gamma for a proton that has a momentum of 1.00 kg \cdot m/s . (b) What is its speed? Such protons form a rare component of cosmic radiation with uncertain origins. https://seo-videos.collegephysicsanswers.com/ch28/pe42/ed1ch28pe42.mp4 153 68 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-kinetic-energy-mev-neutron-measured-life-span-2065-s-given-its-rest-energy Find the kinetic energy in MeV of a neutron with a measured life span… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe58/thumbs-ed1ch28pe58-00002.png Find the kinetic energy in MeV of a neutron with a measured life span of 2065 s, given its rest energy is 939.6 MeV, and rest life span is 900s. https://seo-videos.collegephysicsanswers.com/ch28/pe58/ed1ch28pe58.mp4 84 14 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-effective-accelerating-potential-electrons-stanford-linear-accelerator-if (a) What is the effective accelerating potential for electrons at the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe62/thumbs-ed1ch28pe62-00002.png (a) What is the effective accelerating potential for electrons at the Stanford Linear Accelerator, if \gamma = 1.00 x 10^{5} for them? (b) What is their total energy (nearly the same as kinetic in this case) in GeV? https://seo-videos.collegephysicsanswers.com/ch28/pe62/ed1ch28pe62.mp4 99 14 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/proton-has-mass-167times-10-27textrm-kg-physicist-measures-protons-total-energy A proton has a mass of 1.67 x 10^{-27} kg . A physicist measures the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe70/thumbs-ed1ch28pe70-00002.png A proton has a mass of 1.67 x 10^{-27} kg . A physicist measures the proton’s total energy to be 50.0 MeV. (a) What is the proton’s kinetic energy? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch28/pe70/ed1ch28pe70.mp4 93 8 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/alpha-decay-nuclear-decay-which-helium-nucleus-emitted-if-helium-nucleus-has Alpha decay is nuclear decay in which a helium nucleus is emitted. If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe54/thumbs-ed1ch28pe54-00002.png Alpha decay is nuclear decay in which a helium nucleus is emitted. If the helium nucleus has a mass of 6.80 x 10^{-27} kg and is given 5.00 MeV of kinetic energy, what is its velocity? https://seo-videos.collegephysicsanswers.com/ch28/pe54/ed1ch28pe54.mp4 149 79 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-use-average-500textrm-kwcdottextrmh-electric-energy-month-your-home Suppose you use an average of 500 kW \cdot h of electric energy per… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe66/thumbs-ed1ch28pe66-00002.png Suppose you use an average of 500 kW \cdot h of electric energy per month in your home. (a) How long would 1.00 g of mass converted to electric energy with an efficiency of 38.0% last you? (b) How many homes could be supplied at the 500 kW \cdot h per month rate for one year by the energy from the described mass conversion? https://seo-videos.collegephysicsanswers.com/ch28/pe66/ed1ch28pe66.mp4 288 22 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-data-table-71-calculate-mass-converted-energy-fission-100-kg-uranium-b (a) Using data from [Table… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe48/thumbs-ed1ch28pe48-00002.png (a) Using data from [Table 7.1](https://openstax.org/books/college-physics/pages/7-6-conservation-of-energy#fs-id1758251), calculate the mass converted to energy by the fission of 1.00 kg of uranium. (b) What is the ratio of mass destroyed to the original mass, \dfrac{\Delta m}{m}? https://seo-videos.collegephysicsanswers.com/ch28/pe48/ed1ch28pe48.mp4 76 65 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pi-meson-particle-decays-muon-and-massless-particle-pi-meson-has-rest-mass A \pi-meson is a particle that decays into a muon and a massless… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe52/thumbs-ed1ch28pe52-00002.png A \pi-meson is a particle that decays into a muon and a massless particle. The \pi-meson has a rest mass energy of 139.6 MeV, and the muon has a rest mass energy of 105.7 MeV. Suppose the \pi-meson is at rest and all of the missing mass goes into the muon’s kinetic energy. How fast will the muon move? https://seo-videos.collegephysicsanswers.com/ch28/pe52/ed1ch28pe52.mp4 200 64 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-cosmic-ray-neutron-has-velocity-0250c-relative-earth-what-neutrons-total One cosmic ray neutron has a velocity of 0.250c relative to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe60/thumbs-ed1ch28pe60-00002.png One cosmic ray neutron has a velocity of 0.250c relative to the Earth. (a) What is the neutron’s total energy in MeV? (b) Find its momentum. (c) Is E \approx pc in this situation? Discuss in terms of the equation given in part (a) of the previous problem. https://seo-videos.collegephysicsanswers.com/ch28/pe60/ed1ch28pe60.mp4 205 18 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-released-destruction-100-kg-mass-b-how-many-kilograms-could-be (a) Calculate the energy released by the destruction of 1.00 kg of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe64/thumbs-ed1ch28pe64-00002.png (a) Calculate the energy released by the destruction of 1.00 kg of mass. (b) How many kilograms could be lifted to a 10.0 km height by this amount of energy? https://seo-videos.collegephysicsanswers.com/ch28/pe64/ed1ch28pe64.mp4 60 28 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nuclear-powered-rockets-were-researched-some-years-safety-concerns-became Nuclear-powered rockets were researched for some years before safety… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe68/thumbs-ed1ch28pe68-00002.png Nuclear-powered rockets were researched for some years before safety concerns became paramount. (a) What fraction of a rocket’s mass would have to be destroyed to get it into a low Earth orbit, neglecting the decrease in gravity? (Assume an orbital altitude of 250 km, and calculate both the kinetic energy (classical) and the gravitational potential energy needed.) (b) If the ship has a mass of 1.00 x 10^{5} kg (100 tons), what total yield nuclear explosion in tons of TNT is needed? https://seo-videos.collegephysicsanswers.com/ch28/pe68/ed1ch28pe68.mp4 264 10 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-energy-joules-and-ev-photon-radio-wave-am-station-has-1530-khz-broadcast What is the energy in joules and eV of a photon in a radio wave from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe20/thumbs-ed1ch29pe20-00002.png What is the energy in joules and eV of a photon in a radio wave from an AM station that has a 1530-kHz broadcast frequency? https://seo-videos.collegephysicsanswers.com/ch29/pe20/ed1ch29pe20.mp4 54 177 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-binding-energy-ev-electrons-magnesium-if-longest-wavelength-photon-can What is the binding energy in eV of electrons in magnesium, if the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe06/thumbs-ed1ch29pe06-00002.png What is the binding energy in eV of electrons in magnesium, if the longest-wavelength photon that can eject electrons is 337 nm? https://seo-videos.collegephysicsanswers.com/ch29/pe06/ed1ch29pe06.mp4 134 139 4.8 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/violet-light-wavelength-400-nm-ejects-electrons-maximum-kinetic-energy-0860-ev Violet light of wavelength 400 nm ejects electrons with a maximum… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe10/thumbs-ed1ch29pe10-00002.png Violet light of wavelength 400 nm ejects electrons with a maximum kinetic energy of 0.860 eV from sodium metal. What is the binding energy of electrons to sodium metal? https://seo-videos.collegephysicsanswers.com/ch29/pe10/ed1ch29pe10.mp4 116 116 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/do-unit-conversions-necessary-show-hc-1240textrm-evcdottextrmnm-stated-text Do the unit conversions necessary to show that hc = 1240 eV \cdot nm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe24/thumbs-ed1ch29pe24-00002.png Do the unit conversions necessary to show that hc = 1240 eV \cdot nm , as stated in the text. https://seo-videos.collegephysicsanswers.com/ch29/pe24/ed1ch29pe24.mp4 71 37 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/red-light-having-wavelength-700-nm-projected-magnesium-metal-which-electrons-are Red light having a wavelength of 700 nm is projected onto magnesium… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe18/thumbs-ed1ch29pe18-00002.png Red light having a wavelength of 700 nm is projected onto magnesium metal to which electrons are bound by 3.68 eV. (a) Use KE _e = hf - BE to calculate the kinetic energy of e the ejected electrons. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch29/pe18/ed1ch29pe18.mp4 82 17 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-energy-ev-photons-produced-crt-using-250-kv-accelerating-potential (a) What is the maximum energy in eV of photons produced in a CRT… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe28/thumbs-ed1ch29pe28-00002.png (a) What is the maximum energy in eV of photons produced in a CRT using a 25.0-kV accelerating potential, such as a color TV? (b) What is their frequency? https://seo-videos.collegephysicsanswers.com/ch29/pe28/ed1ch29pe28.mp4 109 61 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-velocity-electrons-ejected-material-80-nm-photons-if-they-are-bound What is the maximum velocity of electrons ejected from a material by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe14/thumbs-ed1ch29pe14-00002.png What is the maximum velocity of electrons ejected from a material by 80-nm photons, if they are bound to the material by 4.73 eV? https://seo-videos.collegephysicsanswers.com/ch29/pe14/ed1ch29pe14.mp4 152 197 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-kinetic-energy-ev-electrons-ejected-sodium-metal-450-nm-em What is the maximum kinetic energy in eV of electrons ejected from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe08/thumbs-ed1ch29pe08-00002.png What is the maximum kinetic energy in eV of electrons ejected from sodium metal by 450-nm EM radiation, given that the binding energy is 2.28 eV? https://seo-videos.collegephysicsanswers.com/ch29/pe08/ed1ch29pe08.mp4 89 193 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-satellites-use-nuclear-power-if-such-satellite-emits-100-w-flux-gamma-rays Some satellites use nuclear power. (a) If such a satellite emits a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe32/thumbs-ed1ch29pe32-00002.png Some satellites use nuclear power. (a) If such a satellite emits a 1.00-W flux of \gamma rays having an average energy of 0.500 MeV, how many are emitted per second? (b) These γ rays affect other satellites. How far away must another satellite be to only receive one γ ray per second per square meter? https://seo-videos.collegephysicsanswers.com/ch29/pe32/ed1ch29pe32.mp4 182 42 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-electron-moving-300-speed-light What is the wavelength of an electron moving at 3.00% of the speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe50/thumbs-ed1ch29pe50-00002.png What is the wavelength of an electron moving at 3.00% of the speed of light? https://seo-videos.collegephysicsanswers.com/ch29/pe50/ed1ch29pe50.mp4 38 48 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-velocity-0400-kg-billiard-ball-if-its-wavelength-750-cm-large-enough-it What is the velocity of a 0.400-kg billiard ball if its wavelength is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe52/thumbs-ed1ch29pe52-00002.png What is the velocity of a 0.400-kg billiard ball if its wavelength is 7.50 cm (large enough for it to interfere with other billiard balls)? https://seo-videos.collegephysicsanswers.com/ch29/pe52/ed1ch29pe52.mp4 51 40 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiments-are-performed-ultracold-neutrons-having-velocities-small-100-ms-what Experiments are performed with ultracold neutrons having velocities… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe54/thumbs-ed1ch29pe54-00002.png Experiments are performed with ultracold neutrons having velocities as small as 1.00 m/s. (a) What is the wavelength of such a neutron? (b) What is its kinetic energy in eV? https://seo-videos.collegephysicsanswers.com/ch29/pe54/ed1ch29pe54.mp4 59 83 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-electron-accelerated-through-300-kv-potential-tv-tube What is the wavelength of an electron accelerated through a 30.0-kV… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe56/thumbs-ed1ch29pe56-00002.png What is the wavelength of an electron accelerated through a 30.0-kV potential, as in a TV tube? https://seo-videos.collegephysicsanswers.com/ch29/pe56/ed1ch29pe56.mp4 117 58 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-x-ray-photons-second-are-created-x-ray-tube-produces-flux-x-rays-having How many x-ray photons per second are created by an x- ray tube that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe34/thumbs-ed1ch29pe34-00002.png How many x-ray photons per second are created by an x- ray tube that produces a flux of x rays having a power of 1.00 W? Assume the average energy per photon is 75.0 keV. https://seo-videos.collegephysicsanswers.com/ch29/pe34/ed1ch29pe34.mp4 81 33 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-100-100-w-light-bulbs-energy-output-visible-range-typical-incandescent Assuming that 10.0% of a 100-W light bulb’s energy output is in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe36/thumbs-ed1ch29pe36-00002.png Assuming that 10.0% of a 100-W light bulb’s energy output is in the visible range (typical for incandescent bulbs) with an average wavelength of 580 nm, and that the photons spread out uniformly and are not absorbed by the atmosphere, how far away would you be if 500 photons per second enter the 3.00-mm diameter pupil of your eye? (This number easily stimulates the retina.) https://seo-videos.collegephysicsanswers.com/ch29/pe36/ed1ch29pe36.mp4 403 41 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-photon-has-momentum-500times-10-29textrm-kgcdottextrmms-b-find (a) What is the wavelength of a photon that has a momentum of 5.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe40/thumbs-ed1ch29pe40-00002.png (a) What is the wavelength of a photon that has a momentum of 5.00 x 10^{-29} kg \cdot m/s ? (b) Find its energy in eV. https://seo-videos.collegephysicsanswers.com/ch29/pe40/ed1ch29pe40.mp4 97 232 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-wavelength-photon-has-same-momentum-proton-moving-100-speed-light-b (a) Calculate the wavelength of a photon that has the same momentum… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe44/thumbs-ed1ch29pe44-00002.png (a) Calculate the wavelength of a photon that has the same momentum as a proton moving at 1.00% of the speed of light. (b) What is the energy of the photon in MeV? (c) What is the kinetic energy of the proton in MeV? https://seo-videos.collegephysicsanswers.com/ch29/pe44/ed1ch29pe44.mp4 147 53 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-feels-small-force-due-light-it-sends-out-its-headlights-equal-momentum-light A car feels a small force due to the light it sends out from its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe48/thumbs-ed1ch29pe48-00002.png A car feels a small force due to the light it sends out from its headlights, equal to the momentum of the light divided by the time in which it is emitted. (a) Calculate the power of each headlight, if they exert a total force of 2.00 x 10^{-2} N backward on the car. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch29/pe48/ed1ch29pe48.mp4 157 14 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/relatively-long-lived-excited-state-atom-has-lifetime-300-ms-what-minimum A relatively long-lived excited state of an atom has a lifetime of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe66/thumbs-ed1ch29pe66-00002.png A relatively long-lived excited state of an atom has a lifetime of 3.00 ms. What is the minimum uncertainty in its energy? https://seo-videos.collegephysicsanswers.com/ch29/pe66/ed1ch29pe66.mp4 74 91 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-energy-short-lived-particle-has-uncertainty-10-mev-due-its-short-lifetime The decay energy of a short-lived particle has an uncertainty of 1.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe68/thumbs-ed1ch29pe68-00002.png The decay energy of a short-lived particle has an uncertainty of 1.0 MeV due to its short lifetime. What is the smallest lifetime it can have? https://seo-videos.collegephysicsanswers.com/ch29/pe68/ed1ch29pe68.mp4 71 30 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/540-ev-electron-example-297-has-0167-nm-wavelength-if-such-electrons-are-passed The 54.0-eV electron in [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe72/thumbs-ed1ch29pe72-00002.png The 54.0-eV electron in [Example 29.7](https://openstax.org/books/college-physics/pages/29-6-the-wave-nature-of-matter#fs-id2621262) has a 0.167-nm wavelength. If such electrons are passed through a double slit and have their first maximum at an angle of 25.0o , what is the slit separation d ? https://seo-videos.collegephysicsanswers.com/ch29/pe72/ed1ch29pe72.mp4 67 70 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-approximate-uncertainty-mass-muon-determined-its-decay-lifetime What is the approximate uncertainty in the mass of a muon, as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe70/thumbs-ed1ch29pe70-00002.png What is the approximate uncertainty in the mass of a muon, as determined from its decay lifetime? https://seo-videos.collegephysicsanswers.com/ch29/pe70/ed1ch29pe70.mp4 93 29 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-velocity-electron-has-wavelength-100textrm-mutextrmm-b-through-what (a) Calculate the velocity of an electron that has a wavelength of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe58/thumbs-ed1ch29pe58-00002.png (a) Calculate the velocity of an electron that has a wavelength of 1.00 \mu m . (b) Through what voltage must the electron be accelerated to have this velocity? https://seo-videos.collegephysicsanswers.com/ch29/pe58/ed1ch29pe58.mp4 117 48 4 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/kinetic-energy-electron-accelerated-x-ray-tube-100-kev-assuming-it The kinetic energy of an electron accelerated in an x-ray tube is 100… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe60/thumbs-ed1ch29pe60-00002.png The kinetic energy of an electron accelerated in an x-ray tube is 100 keV. Assuming it is nonrelativistic, what is its wavelength? https://seo-videos.collegephysicsanswers.com/ch29/pe60/ed1ch29pe60.mp4 142 35 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-amount-microwave-energy-joules-needed-raise-temperature-100-kg-soup (a) Calculate the amount of microwave energy in joules needed to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe76/thumbs-ed1ch29pe76-00002.png (a) Calculate the amount of microwave energy in joules needed to raise the temperature of 1.00 kg of soup from 20° C to 100° C . (b) What is the total momentum of all the microwave photons it takes to do this? (c) Calculate the velocity of a 1.00-kg mass with the same momentum. (d) What is the kinetic energy of this mass? https://seo-videos.collegephysicsanswers.com/ch29/pe76/ed1ch29pe76.mp4 154 22 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-velocity-electrons-form-same-pattern-450-nm-light-when-passed-through (a) Calculate the velocity of electrons that form the same pattern as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe80/thumbs-ed1ch29pe80-00002.png (a) Calculate the velocity of electrons that form the same pattern as 450-nm light when passed through a double slit. (b) Calculate the kinetic energy of each and compare them. (c) Would either be easier to generate than the other? Explain. https://seo-videos.collegephysicsanswers.com/ch29/pe80/ed1ch29pe80.mp4 134 13 3 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-gamma-proton-having-energy-100-tev-produced-fermilab-accelerator-b-find-its (a) What is \gamma for a proton having an energy of 1.00 TeV,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe78/thumbs-ed1ch29pe78-00002.png (a) What is \gamma for a proton having an energy of 1.00 TeV, produced by the Fermilab accelerator? (b) Find its momentum. (c) What is the proton’s wavelength? https://seo-videos.collegephysicsanswers.com/ch29/pe78/ed1ch29pe78.mp4 140 50 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/intensity-versus-frequency-curve-x-rays-figure-2914-intensity-mostly-smooth In the intensity versus frequency curve for x rays (Figure 29.14),… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap06/thumbs-ed1ch29ap06-00002.png In the intensity versus frequency curve for x rays (Figure 29.14), the intensity is mostly a smooth curve associated with bremsstrahlung (“breaking radiation”). However, there are two spikes (characteristic x rays) that exhibit high-intensity output. Explain how the smooth curve can be described by classical electrodynamics, whereas the peaks require a quantum mechanical interpretation. (Recall that the acceleration or deceleration of electric charges causes the emission of electromagnetic radiation.) https://seo-videos.collegephysicsanswers.com/ch29/ap06/ed1ch29ap06.mp4 205 2 2021-05-05 yes 2021-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sunlight-above-earths-atmosphere-has-intensity-130times-10-kwm2-if-reflected Sunlight above the Earth’s atmosphere has an intensity of 1.30 x 10… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe86/thumbs-ed1ch29pe86-00002.png Sunlight above the Earth’s atmosphere has an intensity of 1.30 x 10 kW/m ^2 . If this is reflected straight back from a mirror that has only a small recoil, the light’s momentum is exactly reversed, giving the mirror twice the incident momentum. (a) Calculate the force per square meter of mirror. (b) Very low mass mirrors can be constructed in the near weightlessness of space, and attached to a spaceship to sail it. Once done, the average mass per square meter of the spaceship is 0.100 kg. Find the acceleration of the spaceship if all other forces are balanced. (c) How fast is it moving 24 hours later? https://seo-videos.collegephysicsanswers.com/ch29/pe86/ed1ch29pe86.mp4 302 22 2021-05-05 yes 2021-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-definition-de-broglie-wavelength-explain-how-wavelike-properties-matter Using the definition of the de Broglie wavelength, explain how… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap14/thumbs-ed1ch29ap14-00002.png Using the definition of the de Broglie wavelength, explain how wavelike properties of matter increase with a decrease in mass or decrease in speed. Use as examples an electron (mass = 9.11 x 10^{-31} kg ) with a speed of 5.0 x 10^{6} m/s and a proton (mass = 1.67 x 10^{-27} kg ) with a speed of 8.0 x 10^{6} m/s . https://seo-videos.collegephysicsanswers.com/ch29/ap14/ed1ch29ap14.mp4 171 2 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-why-heisenbergs-uncertainty-principle-limits-precision-which-either Explain why Heisenberg’s uncertainty principle limits the precision… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap18/thumbs-ed1ch29ap18-00002.png Explain why Heisenberg’s uncertainty principle limits the precision with which either momentum or position of a subatomic particle can be known, but becomes less applicable for matter at the macroscopic level. https://seo-videos.collegephysicsanswers.com/ch29/ap18/ed1ch29ap18.mp4 184 2 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-mass-proton-using-charge-mass-ratio-given-it-chapter-and-its-known (a) Calculate the mass of a proton using the charge-to- mass ratio… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe02/thumbs-ed1ch30pe02-00002.png (a) Calculate the mass of a proton using the charge-to- mass ratio given for it in this chapter and its known charge. (b) How does your result compare with the proton mass given in this chapter? https://seo-videos.collegephysicsanswers.com/ch30/pe02/ed1ch30pe02.mp4 41 58 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-dfrac136textrm-evhc-1097times-107textrm-m-r-rydbergs-constant-discussed Show that \dfrac{13.6 eV }{hc} = 1.097 x 10^{7} /m = R (Rydberg's… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe14/thumbs-ed1ch30pe14-00002.png Show that \dfrac{13.6 eV }{hc} = 1.097 x 10^{7} /m = R (Rydberg's constant), as discussed in the text. https://seo-videos.collegephysicsanswers.com/ch30/pe14/ed1ch30pe14.mp4 49 19 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-retarding-force-due-viscosity-air-layer-between-cart-and-level-air (a) Calculate the retarding force due to the viscosity of the air… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe29/thumbs-ed1ch12pe29-00002.png (a) Calculate the retarding force due to the viscosity of the air layer between a cart and a level air track given the following information—air temperature is 20° C , the cart is moving at 0.400 m/s, its surface area is 2.50 x 10^{-2} m ^2, and the thickness of the air layer is 6.00 x 10^{-5} m . (b) What is the ratio of this force to the weight of the 0.300-kg cart? https://seo-videos.collegephysicsanswers.com/ch12/pe29/ed1ch12pe29.mp4 66 219 5 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/small-artery-has-length-11-times-10-3-m-and-radius-25-times-10-5-m-if-pressure A small artery has a length of 1.1 x 10^{-3} m and a radius of 2.5 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe33/thumbs-ed1ch12pe33-00002.png A small artery has a length of 1.1 x 10^{-3} m and a radius of 2.5 x 10^{-5} m . If the pressure drop across the artery is 1.3 kPa, what is the flow rate through the artery? (Assume that the temperature is 37° C .) https://seo-videos.collegephysicsanswers.com/ch12/pe33/ed1ch12pe33.mp4 58 118 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/arterioles-small-arteries-leading-organ-constrict-order-decrease-flow-organ-shut The arterioles (small arteries) leading to an organ, constrict in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe35/thumbs-ed1ch12pe35-00002.png The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, blood flow is reduced naturally to 1.00% of its original value. By what factor did the radii of the arterioles constrict? Penguins do this when they stand on ice to reduce the blood flow to their feet. https://seo-videos.collegephysicsanswers.com/ch12/pe35/ed1ch12pe35.mp4 108 242 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-equation-previous-problem-find-viscosity-motor-oil-which-steel-ball-radius Using the equation of the previous problem, find the viscosity of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe39/thumbs-ed1ch12pe39-00002.png Using the equation of the previous problem, find the viscosity of motor oil in which a steel ball of radius 0.8 mm falls with a terminal speed of 4.32 cm/s. The densities of the ball and the oil are 7.86 and 0.88 g/mL, respectively. https://seo-videos.collegephysicsanswers.com/ch12/pe39/ed1ch12pe39.mp4 96 30 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/layer-oil-150-mm-thick-placed-between-two-microscope-slides-researchers-find A layer of oil 1.50 mm thick is placed between two microscope slides.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe41/thumbs-ed1ch12pe41-00002.png A layer of oil 1.50 mm thick is placed between two microscope slides. Researchers find that a force of 5.50 x 10^{-4} N is required to glide one over the other at a speed of 1.00 cm/s when their contact area is 6.00 cm ^2. What is the oil's viscosity? What type of oil might it be? https://seo-videos.collegephysicsanswers.com/ch12/pe41/ed1ch12pe41.mp4 59 106 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/oil-gusher-shoots-crude-oil-250-m-air-through-pipe-0100-m-diameter-neglecting An oil gusher shoots crude oil 25.0 m into the air through a pipe… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe47/thumbs-ed1ch12pe47-00002.png An oil gusher shoots crude oil 25.0 m into the air through a pipe with a 0.100-m diameter. Neglecting air resistance but not the resistance of the pipe, and assuming laminar flow, calculate the gauge pressure at the entrance of the 50.0-m- long vertical pipe. Take the density of the oil to be 900 kg/m ^3 and its viscosity to be 1.00 N/m ^2 (or 1.00 Pa ). Note that you must take into account the pressure due to the 50.0-m column of oil in the pipe. https://seo-videos.collegephysicsanswers.com/ch12/pe47/ed1ch12pe47.mp4 211 44 5 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-flow-oil-laminar-barely-oil-gusher-shoots-crude-oil-250-m-air-through Verify that the flow of oil is laminar (barely) for an oil gusher… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe51/thumbs-ed1ch12pe51-00002.png Verify that the flow of oil is laminar (barely) for an oil gusher that shoots crude oil 25.0 m into the air through a pipe with a 0.100-m diameter. The vertical pipe is 50 m long. Take the density of the oil to be 900 kg/m ^3 and its viscosity to be 1.00 N/m ^2 (or 1.00 Pa \cdot s ). https://seo-videos.collegephysicsanswers.com/ch12/pe51/ed1ch12pe51.mp4 124 123 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/concrete-pumped-cement-mixer-place-it-being-laid-instead-being-carried Concrete is pumped from a cement mixer to the place it is being laid,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe55/thumbs-ed1ch12pe55-00002.png Concrete is pumped from a cement mixer to the place it is being laid, instead of being carried in wheelbarrows. The flow rate is 200.0 L/min through a 50.0-m-long, 8.00-cm-diameter hose, and the pressure at the pump is 8.00 x 10^6 Pa . Verify that the flow of concrete is laminar taking concrete's viscosity to be 48.0 N/m ^2\cdot s , and given its density is 2300 kg/m ^3. https://seo-videos.collegephysicsanswers.com/ch12/pe55/ed1ch12pe55.mp4 92 40 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-vicinity-charged-insulator-figure-1851-noting-its Sketch the electric field lines in the vicinity of the charged… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe40/thumbs-ed1ch18pe13-00002.png Sketch the electric field lines in the vicinity of the charged insulator in Figure 18.51 noting its nonuniform charge distribution. https://seo-videos.collegephysicsanswers.com/ch18/pe40/ed1ch18pe13.mp4 84 62 5 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-greatest-average-speed-blood-flow-37circtextrmc-artery-radius-200-mm-if What is the greatest average speed of blood flow at 37° C in an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe57/thumbs-ed1ch12pe57-00002.png What is the greatest average speed of blood flow at 37° C in an artery of radius 2.00 mm if the flow is to remain laminar? What is the corresponding flow rate? Take the density of blood to be 1025 kg/m ^3. https://seo-videos.collegephysicsanswers.com/ch12/pe57/ed1ch12pe57.mp4 87 108 5 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gasoline-piped-underground-refineries-major-users-flow-rate-300-times-10-2 Gasoline is piped underground from refineries to major users. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe59/thumbs-ed1ch12pe59-00002.png Gasoline is piped underground from refineries to major users. The flow rate is 3.00 x 10^{-2} m ^3 /s (about 500 gal/min), the viscosity of gasoline is 1.00 x 10^{-3} Pa /cdot s , and its density is 680 kg/m ^3. (a) What minimum diameter must the pipe have if the Reynolds number is to be less than 2000? (b) What pressure difference must be maintained along each kilometer of the pipe to maintain this flow rate? https://seo-videos.collegephysicsanswers.com/ch12/pe59/ed1ch12pe59.mp4 173 38 5 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fairly-large-garden-hose-has-internal-radius-0600-cm-and-length-230-m-nozzleless A fairly large garden hose has an internal radius of 0.600 cm and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe61/thumbs-ed1ch12pe61-00002.png A fairly large garden hose has an internal radius of 0.600 cm and a length of 23.0 m. The nozzleless horizontal hose is attached to a faucet, and it delivers 50.0 L/s. (a) What water pressure is supplied by the faucet? (b) What is unreasonable about this pressure? (c) What is unreasonable about the premise? (d) What is the Reynold's number for the given flow? (Take the viscosity of water as 1.005 x 10^{-3} Pa \cdot s .) https://seo-videos.collegephysicsanswers.com/ch12/pe61/ed1ch12pe61.mp4 194 26 3 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-average-time-required-oxygen-molecule-diffuse-through-0200-mm-thick-tear (a) Find the average time required for an oxygen molecule to diffuse… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe65/thumbs-ed1ch12pe65-00002.png (a) Find the average time required for an oxygen molecule to diffuse through a 0.200-mm-thick tear layer on the cornea. (b) How much time is required to diffuse 0.500 cm ^3 of oxygen to the cornea if its surface area is 1.00 cm ^2? https://seo-videos.collegephysicsanswers.com/ch12/pe65/ed1ch12pe65.mp4 137 93 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/according-bernoullis-equation-if-pressure-given-fluid-constant-and-kinetic According to Bernoulli's equation, if the pressure in a given fluid… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap05/thumbs-ed1ch12ap05-00002.png According to Bernoulli's equation, if the pressure in a given fluid is constant and the kinetic energy per unit volume of a fluid increases, which of the following is true? (a) The potential energy per unit volume of the fluid decreases.(b) The potential energy per unit volume of the fluid increases.(c) The fluid must no longer be considered incompressible.(d) The flow rate of the fluid increases. https://seo-videos.collegephysicsanswers.com/ch12/ap05/ed1ch12ap05.mp4 39 8 2018-06-05 yes 2018-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-depth-beneath-surface-lake-pressure-water-equal-twice-atmospheric-pressure At what depth beneath the surface of the lake is the pressure in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap03/thumbs-ed1ch12ap03-00002.png At what depth beneath the surface of the lake is the pressure in the water equal to twice atmospheric pressure? (a) 10 m(b) 100 m(c) 1000 m(d) 10,000 m https://seo-videos.collegephysicsanswers.com/ch12/ap03/ed1ch12ap03.mp4 68 14 2018-06-05 yes 2018-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-flows-through-small-horizontal-pipe-speed-12-ms-larger-part-pipe-which Water flows through a small horizontal pipe with a speed of 12 m/s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap01/thumbs-ed1ch12ap01-00002.png Water flows through a small horizontal pipe with a speed of 12 m/s into a larger part of the pipe for which the diameter of the pipe is doubled. What is the speed of the water in the larger part of the pipe? (a) 0.75 m/s(b) 3.0 m/s(c) 6.0 m/s(d) 12 m/s https://seo-videos.collegephysicsanswers.com/ch12/ap01/ed1ch12ap01.mp4 143 12 2018-06-05 yes 2018-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/horizontally-oriented-pipe-has-diameter-56-cm-and-filled-water-pipe-draws-water A horizontally oriented pipe has a diameter of 5.6 cm and is filled… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap07/thumbs-ed1ch12ap07-00002.png A horizontally oriented pipe has a diameter of 5.6 cm and is filled with water. The pipe draws water from a reservoir that is initially at rest. A manually operated plunger provides a force of 440 N in the pipe. Assuming that the other end of the pipe is open to the air, with what speed does the water emerge from the pipe? (a) 12 m/s(b) 19 m/s(c) 150 m/s(d) 190 m/s https://seo-videos.collegephysicsanswers.com/ch12/ap07/ed1ch12ap07.mp4 171 14 2018-06-05 yes 2018-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-container-water-open-air-and-it-develops-hole-area-10-cm-point-5-m-below A large container of water is open to the air, and it develops a hole… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap09/thumbs-ed1ch12ap09-00002.png A large container of water is open to the air, and it develops a hole of area 10 cm at a point 5 m below the surface of the water. What is the flow rate ( m ^3 /s ) of the water emerging from this hole? (a) 99 m ^3 /s (b) 9.9 m ^3 /s (c) 0.099 m ^3 /s (d) 0.0099 m ^3 /s https://seo-videos.collegephysicsanswers.com/ch12/ap09/ed1ch12ap09.mp4 242 16 2018-06-05 yes 2018-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-coulombs-positive-charge-are-there-400-kg-plutonium-given-its-atomic How many coulombs of positive charge are there in 4.00 kg of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe09/thumbs-ed1ch18pe09-00002.png How many coulombs of positive charge are there in 4.00 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons? https://seo-videos.collegephysicsanswers.com/ch18/pe09/ed1ch18pe09.mp4 55 133 5 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-vicinity-conductor-figure-1849-given-field-was Sketch the electric field lines in the vicinity of the conductor in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe38/thumbs-ed1ch18pe11-00002.png Sketch the electric field lines in the vicinity of the conductor in Figure 18.49 given the field was originally uniform and parallel to the object's long axis. Is the resulting field small near the long side of the object? https://seo-videos.collegephysicsanswers.com/ch18/pe38/ed1ch18pe11.mp4 92 85 5 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-coulomb-force-charge-200-nc-located-x-400-cm-figure-1852-b-given-q (a) Find the total Coulomb force on a charge of 2.00 nC located at x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe44/thumbs-ed1ch18pe17-00002.png (a) Find the total Coulomb force on a charge of 2.00 nC located at x = 4.00 cm in Figure 18.52 (b), given that q = 1.00 \mu C . (b) Find the x-position at which the electric field is zero in Figure 18.52(b). https://seo-videos.collegephysicsanswers.com/ch18/pe44/ed1ch18pe17.mp4 468 189 4.7 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-coulomb-force-charge-q-figure-1853-given-q-100-mutextrmc-qa-200 Find the total Coulomb force on the charge q in Figure 18.53, given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe48/thumbs-ed1ch18pe21-00002.png Find the total Coulomb force on the charge q in Figure 18.53, given that q = 1.00 \mu C , q_a = 2.00 \mu C , q_b = -3.00 \mu C , q_c = -4.00 \mu C , and q_d = +1.00 \mu C .The square is 50.0 cm on a side. https://seo-videos.collegephysicsanswers.com/ch18/pe48/ed1ch18pe21.mp4 685 169 5 2018-06-07 yes 2018-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rubbing-your-hands-together-warms-them-converting-work-thermal-energy-if-woman Rubbing your hands together warms them by converting work into… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe05/thumbs-ed1ch14pe05-00002.png Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers. https://seo-videos.collegephysicsanswers.com/ch14/pe05/ed1ch14pe05.mp4 139 539 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-identical-amounts-heat-transfer-different-masses-copper-and-water Suppose identical amounts of heat transfer into different masses of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe07/thumbs-ed1ch14pe07-00002.png Suppose identical amounts of heat transfer into different masses of copper and water, causing identical changes in temperature. What is the ratio of the mass of copper to water? https://seo-videos.collegephysicsanswers.com/ch14/pe07/ed1ch14pe07.mp4 146 472 3.5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-spectrometer-being-used-separate-common-oxygen-16-much-rarer-oxygen-18 A mass spectrometer is being used to separate common oxygen-16 from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe20/thumbs-ed1ch22pe20-00002.png A mass spectrometer is being used to separate common oxygen-16 from the much rarer oxygen-18, taken from a sample of old glacial ice. (The relative abundance of these oxygen isotopes is related to climatic temperature at the time the ice was deposited.) The ratio of the masses of these two ions is 16 to 18, the mass of oxygen-16 is 2.66 x 10^{-26} kg , and they are singly charged and travel at 5.00 x 10^{6} m/s in a 1.20-T magnetic field. What is the separation between their paths when they hit a target after traversing a semicircle? https://seo-videos.collegephysicsanswers.com/ch22/pe20/ed1ch22pe20.mp4 406 257 4.4 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mount-everest-29028-feet-tallest-mountain-earth-what-its-height-kilometers Mount Everest, at 29,028 feet, is the tallest mountain on the Earth.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe07/thumbs-ed1ch01pe07-00002.png Mount Everest, at 29,028 feet, is the tallest mountain on the Earth. What is its height in kilometers? (Assume that 1 kilometer equals 3,281 feet.) https://seo-videos.collegephysicsanswers.com/ch01/pe07/ed1ch01pe07.mp4 55 259 4.6 2018-01-30 yes 2018-01-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tectonic-plates-are-large-segments-earths-crust-move-slowly-suppose-one-such Tectonic plates are large segments of the Earth's crust that move… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe09/thumbs-ed1ch01pe09-00002.png Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such plate has an average speed of 4.0 cm/year. (a) What distance does it move in 1 s at this speed? (b) What is its speed in kilometers per million years? https://seo-videos.collegephysicsanswers.com/ch01/pe09/ed1ch01pe09.mp4 224 796 3.5 2018-01-30 yes 2018-01-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0750-m-long-section-cable-carrying-current-car-starter-motor-makes-angle-60circ (a) A 0.750-m-long section of cable carrying current to a car starter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe38/thumbs-ed1ch22pe38-00002.png (a) A 0.750-m-long section of cable carrying current to a car starter motor makes an angle of 60° with the Earth’s 5.50 x 10^{-5} T field. What is the current when the wire experiences a force of 7.00 x 10^{-3} N ? (b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.75-T field, what force is exerted on this segment of wire? https://seo-videos.collegephysicsanswers.com/ch22/pe38/ed1ch22pe38.mp4 155 180 4.3 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-your-bathroom-scale-reads-your-mass-65-kg-3-uncertainty-what-uncertainty Suppose that your bathroom scale reads your mass as 65 kg with a 3%… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe11/thumbs-ed1ch01pe11-00002.png Suppose that your bathroom scale reads your mass as 65 kg with a 3% uncertainty. What is the uncertainty in your mass (in kilograms)? https://seo-videos.collegephysicsanswers.com/ch01/pe11/ed1ch01pe11.mp4 101 593 4.5 2018-01-31 yes 2018-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/following-vigorous-exercise-body-temperature-800-kg-person-400circtextrmc-what Following vigorous exercise, the body temperature of an 80.0-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe09/thumbs-ed1ch14pe09-00002.png Following vigorous exercise, the body temperature of an 80.0-kg person is 40.0° C . At what rate in watts must the person transfer thermal energy to reduce the the body temperature to 37.0° C in 30.0 min, assuming the body continues to produce energy at the rate of 150 W? (1 watt = 1 joule / second or 1W = 1 J/s). https://seo-videos.collegephysicsanswers.com/ch14/pe09/ed1ch14pe09.mp4 142 508 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-person-has-average-heart-rate-720-beatsmin-how-many-beats-does-he-or-she (a) Suppose that a person has an average heart rate of 72.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe15/thumbs-ed1ch01pe15-00002.png (a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she have in 2.0 y? (b) In 2.00 y? (c) In 2.000 y? https://seo-videos.collegephysicsanswers.com/ch01/pe15/ed1ch01pe15.mp4 203 401 4.3 2018-02-02 yes 2018-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-turn-circular-loop-radius-500-cm-vertical-its-axis-east-west-line-current (a) A 200-turn circular loop of radius 50.0 cm is vertical, with its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe48/thumbs-ed1ch22pe48-00002.png (a) A 200-turn circular loop of radius 50.0 cm is vertical, with its axis on an east-west line. A current of 100 A circulates clockwise in the loop when viewed from the east. The Earth’s field here is due north, parallel to the ground, with a strength of 3.00 x 10^{-5} T . What are the direction and magnitude of the torque on the loop? (b) Does this device have any practical applications as a motor? https://seo-videos.collegephysicsanswers.com/ch22/pe48/ed1ch22pe48.mp4 317 109 5 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/indicate-whether-magnetic-field-created-each-three-situations-shown-figure-2259 Indicate whether the magnetic field created in each of the three… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe58/thumbs-ed1ch22pe58-00002.png Indicate whether the magnetic field created in each of the three situations shown in Figure 22.59 is into or out of the page on the left and right of the current. https://seo-videos.collegephysicsanswers.com/ch22/pe58/ed1ch22pe58.mp4 128 83 5 2020-11-10 yes 2020-11-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-objects-and-b-equal-mass-collide-elastically-mass-initially-moving-40-ms-x Two objects (A and B) of equal mass collide elastically. Mass A is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap32/thumbs-ed1ch08ap32-00002.png Two objects (A and B) of equal mass collide elastically. Mass A is initially moving 4.0 m/s in the +x-direction prior to the collision. Mass B is initially moving 8.0 m/s in the –x-direction prior to the collision. After the collision, mass A will be moving with a velocity of 8.0 m/s in the –x-direction. (a) Use the principle of conservation of momentum to predict the velocity of mass B after the collision. (b) Use the fact that kinetic energy is conserved in elastic collisions to predict the velocity of mass B after the collision. https://seo-videos.collegephysicsanswers.com/ch08/ap32/ed1ch08ap32.mp4 247 2 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/below-graph-determine-initial-and-final-momentum-both-objects-assuming-mass-10 For the below graph, determine the initial and final momentum for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap38/thumbs-ed1ch08ap38-00002.png For the below graph, determine the initial and final momentum for both objects, assuming mass A is 1.0 kg and mass B is 3.0 kg. Also, determine the initial and final kinetic energies for both objects. Based on your results, explain whether momentum is conserved in this collision, and state whether the collision is elastic or inelastic. https://seo-videos.collegephysicsanswers.com/ch08/ap38/ed1ch08ap38.mp4 353 8 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-directions-currents-loop-and-coils-shown-figure-2261 What are the directions of the currents in the loop and coils shown… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe60/thumbs-ed1ch22pe60-00002.png What are the directions of the currents in the loop and coils shown in Figure 22.61? https://seo-videos.collegephysicsanswers.com/ch22/pe60/ed1ch22pe60.mp4 165 135 5 2020-11-10 yes 2020-11-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-measures-his-or-her-heart-rate-counting-number-beats-30-s-if-40-pm-1 A person measures his or her heart rate by counting the number of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe21/thumbs-ed1ch01pe21-00002.png A person measures his or her heart rate by counting the number of beats in 30 s . If 40 ± 1 beats are counted in30.0 ± 0.5 s , what is the heart rate and its uncertainty in beats per minute? https://seo-videos.collegephysicsanswers.com/ch01/pe21/ed1ch01pe21.mp4 259 567 5 2018-02-06 yes 2018-02-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sides-small-rectangular-box-are-measured-be-180-pm-001-cm-205-pm-002-cm-31-pm-01 The sides of a small rectangular box are measured to be 1.80 ± 0.01… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe25/thumbs-ed1ch01pe25-00002.png The sides of a small rectangular box are measured to be 1.80 ± 0.01 cm 2.05 ± 0.02 cm 3.1 ± 0.1 cm , long. Calculate its volume and uncertainty in cubic centimeters. https://seo-videos.collegephysicsanswers.com/ch01/pe25/ed1ch01pe25.mp4 236 420 3.3 2018-02-06 yes 2018-02-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mri-technician-moves-his-hand-region-very-low-magnetic-field-strength-mri-1 An MRI technician moves his hand from a region of very low magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe10/thumbs-ed1ch23pe10-00002.png An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner’s 2.00 T field with his fingers pointing in the direction of the field. Find the average emf induced in his wedding ring, given its diameter is 2.20 cm and assuming it takes 0.250 s to move it into the field.Referring to the situation in the previous problem: (a) What current is induced in the ring if its resistance is 0.0100 \Omega ? (b) What average power is dissipated? (c) What magnetic field is induced at the center of the ring? (d) What is the direction of the induced magnetic field relative to the MRI’s field? https://seo-videos.collegephysicsanswers.com/ch23/pe10/ed1ch23pe10.mp4 292 253 4 2020-12-02 yes 2020-12-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-heat-transfer-necessary-raise-temperature-0200-kg-piece-ice (a) How much heat transfer is necessary to raise the temperature of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe17/thumbs-ed1ch14pe17-00002.png (a) How much heat transfer is necessary to raise the temperature of a 0.200-kg piece of ice from -20.0° C to 130° C , including the energy needed for phase changes? (b) How much time is required for each stage, assuming a constant 20.0 kJ/s rate of heat transfer? (c) Make a graph of temperature versus time for this process. https://seo-videos.collegephysicsanswers.com/ch14/pe17/ed1ch14pe17.mp4 378 449 4.3 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-50-turn-coil-lies-plane-page-uniform-magnetic-field-directed-page-coil Suppose a 50-turn coil lies in the plane of the page in a uniform… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe08/thumbs-ed1ch23pe08-00002.png Suppose a 50-turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. The coil originally has an area of 0.250 m ^2 . It is stretched to have no area in 0.100 s. What is the direction and magnitude of the induced emf if the uniform magnetic field has a strength of 1.50 T? https://seo-videos.collegephysicsanswers.com/ch23/pe08/ed1ch23pe08.mp4 206 455 4 2020-12-02 yes 2020-12-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lightning-bolt-produces-rapidly-varying-magnetic-field-if-bolt-strikes-earth (a) A lightning bolt produces a rapidly varying magnetic field. If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe14/thumbs-ed1ch23pe14-00002.png (a) A lightning bolt produces a rapidly varying magnetic field. If the bolt strikes the earth vertically and acts like a current in a long straight wire, it will induce a voltage in a loop aligned like that in Figure 23.57(b). What voltage is induced in a 1.00 m diameter loop 50.0 m from a 2.00 x 10^{6} A lightning strike, if the current falls to zero in 25.0 \mu s ? (b) Discuss circumstances under which such a voltage would produce noticeable consequences. https://seo-videos.collegephysicsanswers.com/ch23/pe14/ed1ch23pe14.mp4 330 99 5 2020-12-06 yes 2020-12-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/august-1992-space-shuttle-flight-only-250-m-conducting-tether-considered-example In the August 1992 space shuttle flight, only 250 m of the conducting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe22/thumbs-ed1ch23pe22-00002.png In the August 1992 space shuttle flight, only 250 m of the conducting tether considered in Example 23.2 could be let out. A 40.0 V motional emf was generated in the Earth’s 5.00 x 10^{-5} T field, while moving at 7.80 x 10^{3} m/s . What was the angle between the shuttle’s velocity and the Earth’s field, assuming the conductor was perpendicular to the field? https://seo-videos.collegephysicsanswers.com/ch23/pe22/ed1ch23pe22.mp4 116 110 3.8 2020-12-09 yes 2020-12-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/length-and-width-rectangular-room-are-measured-be-3955-pm-0005-m-and-3050-pm The length and width of a rectangular room are measured to be 3.955 ±… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe27/thumbs-ed1ch01pe27-00002.png The length and width of a rectangular room are measured to be 3.955 ± 0.005 m and 3.050 ± 0.005 m . Calculate the area of the room and its uncertainty in square meters. https://seo-videos.collegephysicsanswers.com/ch01/pe27/ed1ch01pe27.mp4 163 484 4.3 2018-02-06 yes 2018-02-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-person-covered-head-foot-wool-clothing-average-thickness-200-cm-and Suppose a person is covered head to foot by wool clothing with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe39/thumbs-ed1ch14pe39-00002.png Suppose a person is covered head to foot by wool clothing with average thickness of 2.00 cm and is transferring energy by conduction through the clothing at the rate of 50.0 W. What is the temperature difference across the clothing, given the surface area is 1.40 m ^2? https://seo-videos.collegephysicsanswers.com/ch14/pe39/ed1ch14pe39.mp4 97 265 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/75-turn-100-cm-diameter-coil-rotates-angular-velocity-800-rads-125-t-field A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe36/thumbs-ed1ch23pe36-00002.png A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.25 T field, starting with the plane of the coil parallel to the field. (a) What is the peak emf? (b) At what time is the peak emf first reached? (c) At what time is the emf first at its most negative? (d) What is the period of the AC voltage output? https://seo-videos.collegephysicsanswers.com/ch23/pe36/ed1ch23pe36.mp4 505 97 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-current-through-150-h-inductor-dissipated-200textrm-omega-resistor-circuit The 5.00 A current through a 1.50 H inductor is dissipated by a 2.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe76/thumbs-ed1ch23pe76-00002.png The 5.00 A current through a 1.50 H inductor is dissipated by a 2.00 \Omega resistor in a circuit like that in Figure 23.44 with the switch in position 2. (a) What is the initial energy in the inductor? (b) How long will it take the current to decline to 5.00% of its initial value? (c) Calculate the average power dissipated, and compare it with the initial power dissipated by the resistor. https://seo-videos.collegephysicsanswers.com/ch23/pe76/ed1ch23pe76.mp4 220 70 5 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rlc-series-circuit-has-100textrm-komega-resistor-150textrm-mutextrmh-inductor An RLC series circuit has a 1.00 k \Omega resistor, a 150 \mu H … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe102/thumbs-ed1ch23pe102-00002.png An RLC series circuit has a 1.00 k \Omega resistor, a 150 \mu H inductor, and a 25.0 nF capacitor. (a) Find the circuit’s impedance at 500 Hz. (b) Find the circuit’s impedance at 7.50 kHz. (c) If the voltage source has V _ rms =408 V , what is I _ rms at each frequency? (d) What is the resonant frequency of the circuit? (e) What is I _ rms at resonance? https://seo-videos.collegephysicsanswers.com/ch23/pe102/ed1ch23pe102.mp4 253 129 2.7 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/maximum-magnetic-field-strength-electromagnetic-field-5times-10-6textrm-t The maximum magnetic field strength of an electromagnetic field is 5… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe04/thumbs-ed1ch24pe04-00002.png The maximum magnetic field strength of an electromagnetic field is 5 x 10^{-6} T . Calculate the maximum electric field strength if the wave is traveling in a medium in which the speed of the wave is 0.75c . https://seo-videos.collegephysicsanswers.com/ch24/pe04/ed1ch24pe04.mp4 45 146 3.7 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-heartbeats-are-there-lifetime How many heartbeats are there in a lifetime? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe29/thumbs-ed1ch01pe29-00002.png How many heartbeats are there in a lifetime? https://seo-videos.collegephysicsanswers.com/ch01/pe29/ed1ch01pe29.mp4 110 393 4 2018-02-07 yes 2018-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-when-si-units-mu0-and-epsilon0-are-entered-units-given-right-hand-side Show that, when SI units for \mu_0 and \epsilon_0 are entered, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe02/thumbs-ed1ch24pe02-00002.png Show that, when SI units for \mu_0 and \epsilon_0 are entered, the units given by the right-hand side of the equation c = \dfrac{1}{\sqrt{\mu_0 \epsilon_0}} are m/s. https://seo-videos.collegephysicsanswers.com/ch24/pe02/ed1ch24pe02.mp4 167 141 5 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-normal-beating-heart-creates-maximum-400-mv-potential-across-0300-m During normal beating, the heart creates a maximum 4.00-mV potential… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe20/thumbs-ed1ch24pe20-00002.png During normal beating, the heart creates a maximum 4.00-mV potential across 0.300 m of a person’s chest, creating a 1.00-Hz electromagnetic wave. (a) What is the maximum electric field strength created? (b) What is the corresponding maximum magnetic field strength in the electromagnetic wave? (c) What is the wavelength of the electromagnetic wave? https://seo-videos.collegephysicsanswers.com/ch24/pe20/ed1ch24pe20.mp4 111 179 4.3 2021-01-05 yes 2021-01-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/kilauea-volcano-hawaii-worlds-most-active-disgorging-about-5-times-105-m3-1200 The Kilauea volcano in Hawaii is the world’s most active, disgorging… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe51/thumbs-ed1ch14pe51-00002.png The Kilauea volcano in Hawaii is the world’s most active, disgorging about 5 x 10^5 m ^3 of 1200 ° C lava per day. What is the rate of heat transfer out of Earth by convection if this lava has a density of 2700 kg/m ^3 and eventually cools to 30° C ? Assume that the specific heat of lava is the same as that of granite. https://seo-videos.collegephysicsanswers.com/ch14/pe51/ed1ch14pe51.mp4 178 332 4.7 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-figure-259-distance-traveled-b-magnitude-displacement-start Find the following for path A in Figure 2.59: (a) The distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe01/thumbs-ed1ch02pe01-00002.png Find the following for path A in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish. https://d1igkeoc1zsqhw.cloudfront.net/ch02/pe01/ed1ch02pe01.mp4 126 732 4.6 2018-02-07 no 2018-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-100-mhz-radio-waves-used-mri-unit-b-if-frequencies-are-swept (a) What is the wavelength of 100-MHz radio waves used in an MRI… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe22/thumbs-ed1ch24pe22-00002.png (a) What is the wavelength of 100-MHz radio waves used in an MRI unit? (b) If the frequencies are swept over a ± 1.00 range centered on 100 MHz, what is the range of wavelengths broadcast? https://seo-videos.collegephysicsanswers.com/ch24/pe22/ed1ch24pe22.mp4 82 137 5 2021-01-05 yes 2021-01-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-net-rate-does-heat-radiate-275-m2-black-roof-night-when-roofs-temperature At what net rate does heat radiate from a 275 m ^2 black roof on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe55/thumbs-ed1ch14pe55-00002.png At what net rate does heat radiate from a 275 m ^2 black roof on a night when the roof’s temperature is 30.0 ° C and the surrounding temperature is 15.0 ° C ? The emissivity of the roof is 0.900. https://seo-videos.collegephysicsanswers.com/ch14/pe55/ed1ch14pe55.mp4 105 250 2.7 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-looking-purchase-small-piece-land-hong-kong-price-only-60000-square You are looking to purchase a small piece of land in Hong Kong. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe13/thumbs-ed1ch13pe13-00002.png You are looking to purchase a small piece of land in Hong Kong. The price is “only” \$60,000 per square meter! The land title says the dimensions are 20 m x 30 m By how much would the total price change if you measured the parcel with a steel tape measure on a day when the temperature was 20 C ° above normal? https://seo-videos.collegephysicsanswers.com/ch13/pe13/ed1ch13pe13.mp4 193 130 2.8 2018-06-27 yes 2018-06-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-c-figure-259-distance-traveled-b-magnitude-displacement Find the following for path C in Figure 2.59: (a) The distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe03/thumbs-ed1ch02pe03-00002.png Find the following for path C in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish. https://seo-videos.collegephysicsanswers.com/ch02/pe03/ed1ch02pe03.mp4 145 822 4.6 2018-02-07 yes 2018-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radiation-makes-it-impossible-stand-close-hot-lava-flow-calculate-rate-heat Radiation makes it impossible to stand close to a hot lava flow.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe57/thumbs-ed1ch14pe57-00002.png Radiation makes it impossible to stand close to a hot lava flow. Calculate the rate of heat transfer by radiation from 1.00 m ^2 of 1200 ° C fresh lava into 30.0° C surroundings, assuming lava’s emissivity is 1.00. https://seo-videos.collegephysicsanswers.com/ch14/pe57/ed1ch14pe57.mp4 67 276 3 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-ratio-highest-lowest-frequencies-electromagnetic-waves-eye-can-see (a) Calculate the ratio of the highest to lowest frequencies of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe28/thumbs-ed1ch24pe28-00002.png (a) Calculate the ratio of the highest to lowest frequencies of electromagnetic waves the eye can see, given the wavelength range of visible light is from 380 to 760 nm. (b) Compare this with the ratio of highest to lowest frequencies the ear can hear. https://seo-videos.collegephysicsanswers.com/ch24/pe28/ed1ch24pe28.mp4 106 209 2021-01-05 yes 2021-01-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-helium-neon-lasers-commonly-used-student-physics-laboratories-have-power Assume the helium-neon lasers commonly used in student physics… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe32/thumbs-ed1ch24pe32-00002.png Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 1.00 mm in diameter, what is its intensity? (b) Find the peak magnetic field strength. (c) Find the peak electric field strength. https://seo-videos.collegephysicsanswers.com/ch24/pe32/ed1ch24pe32.mp4 189 199 3.5 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-earths-average-speed-relative-sun-b-what-its-average-velocity-over (a) Calculate Earth's average speed relative to the Sun. (b) What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe05/thumbs-ed1ch02pe05-00002.png (a) Calculate Earth's average speed relative to the Sun. (b) What is its average velocity over a period of one year? https://seo-videos.collegephysicsanswers.com/ch02/pe05/ed1ch02pe05.mp4 189 962 4.4 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/helium-filled-toy-balloon-has-gauge-pressure-0200-atm-and-volume-100-l-how-much A helium-filled toy balloon has a gauge pressure of 0.200 atm and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe11/thumbs-ed1ch15pe11-00002.png A helium-filled toy balloon has a gauge pressure of 0.200 atm and a volume of 10.0 L. How much greater is the internal energy of the helium in the balloon than it would be at zero gauge pressure? https://seo-videos.collegephysicsanswers.com/ch15/pe11/ed1ch15pe11.mp4 173 538 4.2 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-net-work-output-heat-engine-follows-path-abda-figure-above-straight-line-b What is the net work output of a heat engine that follows path ABDA… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe15/thumbs-ed1ch15pe15-00002.png What is the net work output of a heat engine that follows path ABDA in the figure above, with a straight line from B to D? Why is the work output less than for path ABCDA? Explicitly show how you follow the steps in the Problem- Solving Strategies for Thermodynamics. https://seo-videos.collegephysicsanswers.com/ch15/pe15/ed1ch15pe15.mp4 113 128 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rate-heat-transfer-conduction-through-window-area-100textrm-m2-0750-cm (a) Calculate the rate of heat transfer by conduction through a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe78/thumbs-ed1ch14pe78-00002.png (a) Calculate the rate of heat transfer by conduction through a window with an area of 1.00 m ^2 that is 0.750 cm thick, if its inner surface is at 22.0° C and its outer surface is at 35.0° C . (b) What is unreasonable about this result? (c) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch14/pe78/ed1ch14pe78.mp4 106 6 2020-05-22 yes 2020-05-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-2357a-what-direction-current-induced-coil-2-if-current-coil-1 Referring to Figure 23.57(a), what is the direction of the current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe03/thumbs-ed1ch23pe03-00002.png Referring to Figure 23.57(a), what is the direction of the current induced in coil 2: (a) If the current in coil 1 increases? (b) If the current in coil 1 decreases? (c) If the current in coil 1 is constant? Explicitly show how you follow the steps in the Problem-Solving Strategy for Lenz's Law. https://seo-videos.collegephysicsanswers.com/ch23/pe03/ed1ch23pe03.mp4 326 288 4.5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/north-american-and-european-continents-are-moving-apart-rate-about-3-cmy-rate The North American and European continents are moving apart at a rate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe07/thumbs-ed1ch02pe07-00002.png The North American and European continents are moving apart at a rate of about 3 cm/y. At this rate how long will it take them to drift 500 km farther apart than they are at present? https://seo-videos.collegephysicsanswers.com/ch02/pe07/ed1ch02pe07.mp4 158 1002 3.6 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mri-technician-moves-his-hand-region-very-low-magnetic-field-strength-mri (a) An MRI technician moves his hand from a region of very low… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe09/thumbs-ed1ch23pe09-00002.png (a) An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner’s 2.00 T field with his fingers pointing in the direction of the field. Find the average emf induced in his wedding ring, given its diameter is 2.20 cm and assuming it takes 0.250 s to move it into the field. (b) Discuss whether this current would significantly change the temperature of the ring. https://seo-videos.collegephysicsanswers.com/ch23/pe09/ed1ch23pe09.mp4 382 354 3.9 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/design-macroscopic-simulation-using-reasonably-common-materials-represent-one Design a macroscopic simulation using reasonably common materials to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap16/thumbs-ed1ch15ap16-00002.png Design a macroscopic simulation using reasonably common materials to represent one very high energy particle gradually transferring energy to a bunch of lower energy particles, and determine if you end up with some sort of equilibrium. https://seo-videos.collegephysicsanswers.com/ch15/ap16/ed1ch15ap16.mp4 48 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-must-sliding-rod-figure-2311-move-produce-emf-100-v-150-t-field-given At what speed must the sliding rod in Figure 23.11 move to produce an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe19/thumbs-ed1ch23pe19-00002.png At what speed must the sliding rod in Figure 23.11 move to produce an emf of 1.00 V in a 1.50 T field, given the rod’s length is 30.0 cm? https://seo-videos.collegephysicsanswers.com/ch23/pe19/ed1ch23pe19.mp4 42 166 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-marathon-runner-averages-95-mih-how-long-does-it-take-him-or-her-run-2622-mi If a marathon runner averages 9.5 mi/h, how long does it take him or… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe23/thumbs-ed1ch01pe23-00002.png If a marathon runner averages 9.5 mi/h, how long does it take him or her to run a 26.22 mi marathon? https://seo-videos.collegephysicsanswers.com/ch01/pe23/ed1ch01pe23.mp4 81 176 5 2018-02-06 yes 2018-02-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/coil-moved-through-magnetic-field-shown-figure-2359-field-uniform-inside A coil is moved through a magnetic field as shown in Figure 23.59.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe27/thumbs-ed1ch23pe27-00002.png A coil is moved through a magnetic field as shown in Figure 23.59. The field is uniform inside the rectangle and zero outside. What is the direction of the induced current and what is the direction of the magnetic force on the coil at each position shown? https://seo-videos.collegephysicsanswers.com/ch23/pe27/ed1ch23pe27.mp4 295 125 3.8 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/may-26-1934-streamlined-stainless-steel-diesel-train-called-zephyr-set-worlds On May 26, 1934, a streamlined, stainless steel diesel train called… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe09/thumbs-ed1ch02pe09-00002.png On May 26, 1934, a streamlined, stainless steel diesel train called the Zephyr set the world's nonstop long-distance speed record for trains. Its run from Denver to Chicago took 13 hours, 4 minutes, 58 seconds, and was witnessed by more than a million people along the route. The total distance traveled was 1633.8 km. What was its average speed in km/h and m/s? https://seo-videos.collegephysicsanswers.com/ch02/pe09/ed1ch02pe09.mp4 117 676 4.5 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-drove-university-her-home-and-noted-odometer-reading-her-car-increased A student drove to the university from her home and noted that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe11/thumbs-ed1ch02pe11-00002.png A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the straight-line distance from her home to the university is 10.3 km in a direction 25.0° south of east, what was her average velocity? (c) If she returned home by the same path 7 h 30 min after she left, what were her average speed and velocity for the entire trip? https://seo-videos.collegephysicsanswers.com/ch02/pe11/ed1ch02pe11.mp4 177 1231 4.1 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/multipurpose-transformer-has-secondary-coil-several-points-which-voltage-can-be A multipurpose transformer has a secondary coil with several points… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe49/thumbs-ed1ch23pe49-00002.png A multipurpose transformer has a secondary coil with several points at which a voltage can be extracted, giving outputs of 5.60, 12.0, and 480 V. (a) The input voltage is 240 V to a primary coil of 280 turns. What are the numbers of turns in the parts of the secondary used to produce the output voltages? (b) If the maximum input current is 5.00 A, what are the maximum output currents (each used alone)? https://seo-videos.collegephysicsanswers.com/ch23/pe49/ed1ch23pe49.mp4 157 63 3.6 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-correct-value-speed-light-c-obtained-when-numerical-values-permeability Verify that the correct value for the speed of light c is obtained… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe01/thumbs-ed1ch24pe01-00002.png Verify that the correct value for the speed of light c is obtained when numerical values for the permeability and permittivity of free space (\mu_o and \epsilon_o) are entered into the equation c = \dfrac{1}{\sqrt{\mu_o \epsilon_o}}. https://d1igkeoc1zsqhw.cloudfront.net/ch24/pe01/ed1ch24pe01.mp4 36 247 5 2018-10-24 no 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-electric-field-strength-electromagnetic-wave-has-maximum-magnetic What is the maximum electric field strength in an electromagnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe03/thumbs-ed1ch24pe03-00002.png What is the maximum electric field strength in an electromagnetic wave that has a maximum magnetic field strength of 5.00 x 10^{-4} T (about 10 times the Earth’s)? https://seo-videos.collegephysicsanswers.com/ch24/pe03/ed1ch24pe03.mp4 37 285 4.5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-units-obtained-magnetic-field-strength-b-example-241-using-equation-b Verify the units obtained for magnetic field strength B in Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe05/thumbs-ed1ch24pe05-00002.png Verify the units obtained for magnetic field strength B in Example 24.1 (using the equation B = \dfrac{E}{c}) are in fact teslas (T). https://seo-videos.collegephysicsanswers.com/ch24/pe05/ed1ch24pe05.mp4 116 86 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-maximum-safe-intensity-microwaves-human-exposure-taken-be-100textrm-wm2 Suppose the maximum safe intensity of microwaves for human exposure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe34/thumbs-ed1ch24pe34-00002.png Suppose the maximum safe intensity of microwaves for human exposure is taken to be 1.00 W/m ^2 . (a) If a radar unit leaks 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an intensity considered to be safe? Assume that the power spreads uniformly over the area of a sphere with no complications from absorption or reflection. (b) What is the maximum electric field strength at the safe intensity? (Note that early radar units leaked more than modern ones do. This caused identifiable health problems, such as cataracts, for people who worked near them.) https://seo-videos.collegephysicsanswers.com/ch24/pe34/ed1ch24pe34.mp4 175 284 3.7 2021-01-07 yes 2021-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/conversations-astronauts-lunar-surface-were-characterized-kind-echo-which Conversations with astronauts on the lunar surface were characterized… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe13/thumbs-ed1ch02pe13-00002.png Conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound person's voice was so loud in the astronaut's space helmet that it was picked up by the astronaut's microphone and transmitted back to Earth. It is reasonable to assume that the echo time equals the time necessary for the radio wave to travel from the Earth to the Moon and back (that is, neglecting any time delays in the electronic equipment). Calculate the distance from Earth to the Moon given that the echo time was 2.56 s and that radio waves travel at the speed of light 3.00 x 10^8 m/s . https://seo-videos.collegephysicsanswers.com/ch02/pe13/ed1ch02pe13.mp4 180 611 4.8 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-when-light-reflects-two-mirrors-meet-each-other-right-angle-outgoing-ray Show that when light reflects from two mirrors that meet each other… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe02/thumbs-ed1ch25pe02-00002.png Show that when light reflects from two mirrors that meet each other at a right angle, the outgoing ray is parallel to the incoming ray, as illustrated in the following figure. https://seo-videos.collegephysicsanswers.com/ch25/pe02/ed1ch25pe02.mp4 206 348 5 2021-01-08 yes 2021-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-angle-between-ray-water-and-perpendicular-water-250circ-and-using (a) Given that the angle between the ray in the water and the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe12/thumbs-ed1ch25pe12-00002.png (a) Given that the angle between the ray in the water and the perpendicular to the water is 25.0°, and using information in Figure 25.53, find the height of the instructor’s head above the water, noting that you will first have to calculate the angle of incidence. (b) Find the apparent depth of the diver’s head below water as seen by the instructor. https://seo-videos.collegephysicsanswers.com/ch25/pe12/ed1ch25pe12.mp4 355 219 3 2021-01-09 yes 2021-01-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-sound-intensity-level-db-produced-earphones-create-intensity-400times-10 What sound intensity level in dB is produced by earphones that create… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe16/thumbs-ed1ch17pe16-00002.png What sound intensity level in dB is produced by earphones that create an intensity of 4.00 x 10^{-2} W/m ^2? https://seo-videos.collegephysicsanswers.com/ch17/pe16/ed1ch17pe16.mp4 30 95 4.3 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-range-wavelengths-am-radio-given-its-frequency-range-540-1600-khz-b-do (a) Calculate the range of wavelengths for AM radio given its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe07/thumbs-ed1ch24pe07-00002.png (a) Calculate the range of wavelengths for AM radio given its frequency range is 540 to 1600 kHz. (b) Do the same for the FM frequency range of 88.0 to 108 MHz. https://seo-videos.collegephysicsanswers.com/ch24/pe07/ed1ch24pe07.mp4 85 453 3.8 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-lens-must-film-camera-be-if-lens-has-350-mm-focal-length-and-being-used How far from the lens must the film in a camera be, if the lens has a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe40/thumbs-ed1ch25pe40-00002.png How far from the lens must the film in a camera be, if the lens has a 35.0 mm focal length and is being used to photograph a flower 75.0 cm away? Explicitly show how you follow the steps in the Problem-Solving Strategy for lenses. https://seo-videos.collegephysicsanswers.com/ch25/pe40/ed1ch25pe40.mp4 92 279 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/doctor-examines-mole-150-cm-focal-length-magnifying-glass-held-135-cm-mole-where A doctor examines a mole with a 15.0 cm focal length magnifying glass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe42/thumbs-ed1ch25pe42-00002.png A doctor examines a mole with a 15.0 cm focal length magnifying glass held 13.5 cm from the mole (a) Where is the image? (b) What is its magnification? (c) How big is the image of a 5.00 mm diameter mole? https://seo-videos.collegephysicsanswers.com/ch25/pe42/ed1ch25pe42.mp4 202 401 4.5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/combine-thin-lens-equations-show-magnification-thin-lens-determined-its-focal Combine thin lens equations to show that the magnification for a thin… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe52/thumbs-ed1ch25pe52-00002.png Combine thin lens equations to show that the magnification for a thin lens is determined by its focal length and the object distance and is given by m = \dfrac{f}{f-d_o} https://seo-videos.collegephysicsanswers.com/ch25/pe52/ed1ch25pe52.mp4 144 34 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-frequency-range-visible-light-given-it-encompasses-wavelengths-380-760-nm Find the frequency range of visible light, given that it encompasses… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe09/thumbs-ed1ch24pe09-00002.png Find the frequency range of visible light, given that it encompasses wavelengths from 380 to 760 nm. https://seo-videos.collegephysicsanswers.com/ch24/pe09/ed1ch24pe09.mp4 54 239 4.5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/students-eyes-while-reading-blackboard-have-power-510-d-how-far-board-his-eyes A student’s eyes, while reading the blackboard, have a power of 51.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe12/thumbs-ed1ch26pe12-00002.png A student’s eyes, while reading the blackboard, have a power of 51.0 D. How far is the board from his eyes? https://seo-videos.collegephysicsanswers.com/ch26/pe12/ed1ch26pe12.mp4 56 64 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/microscope-overall-magnification-800-has-objective-magnifies-200-what A microscope with an overall magnification of 800 has an objective… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe26/thumbs-ed1ch26pe26-00002.png A microscope with an overall magnification of 800 has an objective that magnifies by 200. (a) What is the magnification of the eyepiece? (b) If there are two other objectives that can be used, having magnifications of 100 and 400, what other total magnifications are possible? https://seo-videos.collegephysicsanswers.com/ch26/pe26/ed1ch26pe26.mp4 72 142 4.7 2021-01-26 yes 2021-01-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/determine-amount-time-it-takes-x-rays-frequency-3-times-1018-hz-travel-1-mm-and Determine the amount of time it takes for X-rays of frequency 3 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe15/thumbs-ed1ch24pe15-00002.png Determine the amount of time it takes for X-rays of frequency 3 x 10^{18} Hz to travel (a) 1 mm and (b) 1 cm. https://seo-videos.collegephysicsanswers.com/ch24/pe15/ed1ch24pe15.mp4 45 123 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dr-john-paul-stapp-was-us-air-force-officer-who-studied-effects-extreme Dr. John Paul Stapp was U.S. Air Force officer who studied the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe17/thumbs-ed1ch02pe17-00002.png Dr. John Paul Stapp was U.S. Air Force officer who studied the effects of extreme deceleration on the human body. On December 10, 1954, Stapp rode a rocket sled, accelerating from rest to a top speed of 282 m/s (1015 km/h) in 5.00 s, and was brought jarringly back to rest in only 1.40 s! Calculate his (a) acceleration and (b) deceleration. Express each in multiples of g (9.80 m/s ^2) by taking its ratio to the acceleration of gravity. https://seo-videos.collegephysicsanswers.com/ch02/pe17/ed1ch02pe17.mp4 157 990 4.3 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-500-hz-ac-power-line-radiates-electromagnetic-wave-having-maximum A certain 50.0-Hz AC power line radiates an electromagnetic wave… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe19/thumbs-ed1ch24pe19-00002.png A certain 50.0-Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of 13.0 kV/m. (a) What is the wavelength of this very low frequency electromagnetic wave? (b) What is its maximum magnetic field strength? https://seo-videos.collegephysicsanswers.com/ch24/pe19/ed1ch24pe19.mp4 64 87 4 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-minimum-thickness-oil-slick-water-appears-blue-when-illuminated-white Calculate the minimum thickness of an oil slick on water that appears… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe72/thumbs-ed1ch27pe72-00002.png Calculate the minimum thickness of an oil slick on water that appears blue when illuminated by white light perpendicular to its surface. Take the blue wavelength to be 470 nm and the index of refraction of oil to be 1.40. https://seo-videos.collegephysicsanswers.com/ch27/pe72/ed1ch27pe72.mp4 326 164 5 2021-04-17 yes 2021-04-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/am-radio-transmitter-broadcasts-500-kw-power-uniformly-all-directions-assuming An AM radio transmitter broadcasts 50.0 kW of power uniformly in all… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe33/thumbs-ed1ch24pe33-00002.png An AM radio transmitter broadcasts 50.0 kW of power uniformly in all directions. (a) Assuming all of the radio waves that strike the ground are completely absorbed, and that there is no absorption by the atmosphere or other objects, what is the intensity 30.0 km away? (Hint: Half the power will be spread over the area of a hemisphere.) (b) What is the maximum electric field strength at this distance? https://seo-videos.collegephysicsanswers.com/ch24/pe33/ed1ch24pe33.mp4 143 139 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-light-water-glycerine What is the speed of light in water? In glycerine? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe05/thumbs-ed1ch25pe05-00002.png What is the speed of light in water? In glycerine? https://seo-videos.collegephysicsanswers.com/ch25/pe05/ed1ch25pe05.mp4 44 245 3 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-index-refraction-medium-which-speed-light-2012-times-108-ms-and Calculate the index of refraction for a medium in which the speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe07/thumbs-ed1ch25pe07-00002.png Calculate the index of refraction for a medium in which the speed of light is 2.012 x 10^8 m/s , and identify the most likely substance based on Table 25.1. https://seo-videos.collegephysicsanswers.com/ch25/pe07/ed1ch25pe07.mp4 28 171 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/day-when-intensity-sunlight-100textrm-kwm2-circular-lens-0200-m-diameter-focuses (a) On a day when the intensity of sunlight is 1.00 kW/m ^2, a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe100/thumbs-ed1ch27pe100-00002.png (a) On a day when the intensity of sunlight is 1.00 kW/m ^2, a circular lens 0.200 m in diameter focuses light onto water in a black beaker. Two polarizing sheets of plastic are placed in front of the lens with their axes at an angle of 20.0°. Assuming the sunlight is unpolarized and the polarizers are 100% efficient, what is the initial rate of heating of the water in C ° /s , assuming it is 80.0% absorbed? The aluminum beaker has a mass of 30.0 grams and contains 250 grams of water. (b) Do the polarizing filters get hot? Explain. https://seo-videos.collegephysicsanswers.com/ch27/pe100/ed1ch27pe100.mp4 488 26 2021-04-20 yes 2021-04-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/well-thrown-ball-caught-well-padded-mitt-if-deceleration-ball-210-times-104-ms2 A well-thrown ball is caught in a well-padded mitt. If the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe21/thumbs-ed1ch02pe21-00002.png A well-thrown ball is caught in a well-padded mitt. If the deceleration of the ball is 2.10 x 10^4 m/s ^2, and 1.85 ms (1 ms = 10^{-3} s ) elapses from the time the ball first touches the mitt until it stops, what was the initial velocity of the ball? https://seo-videos.collegephysicsanswers.com/ch02/pe21/ed1ch02pe21.mp4 154 711 4.6 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-unknown-clear-substance-immersed-water-and-you-wish-identify-it Suppose you have an unknown clear substance immersed in water, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe13/thumbs-ed1ch25pe13-00002.png Suppose you have an unknown clear substance immersed in water, and you wish to identify it by finding its index of refraction. You arrange to have a beam of light enter it at an angle of 45.0°, and you observe the angle of refraction to be 40.3°. What is the index of refraction of the substance and its likely identity? https://seo-videos.collegephysicsanswers.com/ch25/pe13/ed1ch25pe13.mp4 63 261 3.7 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neutron-lives-900-s-when-rest-relative-observer-how-fast-neutron-moving-relative A neutron lives 900 s when at rest relative to an observer. How fast… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe06/thumbs-ed1ch28pe06-00002.png A neutron lives 900 s when at rest relative to an observer. How fast is the neutron moving relative to an observer who measures its life span to be 2065 s? https://seo-videos.collegephysicsanswers.com/ch28/pe06/ed1ch28pe06.mp4 131 294 5 2021-04-23 yes 2021-04-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-momentum-electron-traveling-0980c What is the momentum of an electron traveling at 0.980c? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe36/thumbs-ed1ch28pe36-00002.png What is the momentum of an electron traveling at 0.980c? https://seo-videos.collegephysicsanswers.com/ch28/pe36/ed1ch28pe36.mp4 46 93 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-any-relative-velocity-v-between-two-observers-beam-light-sent-one-other Prove that for any relative velocity v between two observers, a beam… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe32/thumbs-ed1ch28pe32-00002.png Prove that for any relative velocity v between two observers, a beam of light sent from one to the other will approach at speed c (provided that v is less than c, of course). https://seo-videos.collegephysicsanswers.com/ch28/pe32/ed1ch28pe32.mp4 96 19 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/seagull-flies-velocity-900-ms-straight-wind-if-it-takes-bird-200-min-travel-600 A seagull flies at a velocity of 9.00 m/s straight into the wind. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe53/thumbs-ed1ch03pe53-00002.png A seagull flies at a velocity of 9.00 m/s straight into the wind. (a) If it takes the bird 20.0 min to travel 6.00 km relative to the Earth, what is the velocity of the wind? (b) If the bird turns around and flies with the wind, how long will he take to return 6.00 km? (c) Discuss how the wind affects the total round-trip time compared to what it would be with no wind. https://seo-videos.collegephysicsanswers.com/ch03/pe53/ed1ch03pe53.mp4 806 597 4 2018-02-20 yes 2018-02-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/beam-white-light-goes-air-water-incident-angle-750circ-what-angles-are-red-660 A beam of white light goes from air into water at an incident angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe29/thumbs-ed1ch25pe29-00002.png A beam of white light goes from air into water at an incident angle of 75.0°. At what angles are the red (660 nm) and violet (410 nm) parts of the light refracted? https://seo-videos.collegephysicsanswers.com/ch25/pe29/ed1ch25pe29.mp4 155 370 4.2 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-figure-2554-represents-ray-light-going-air-through-crown-glass-water Suppose Figure 25.54 represents a ray of light going from air through… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe15/thumbs-ed1ch25pe15-00002.png Suppose Figure 25.54 represents a ray of light going from air through crown glass into water, such as going into a fish tank. Calculate the amount the ray is displaced by the glass (\Delta x), given that the incident angle is 40.0° and the glass is 1.00 cm thick. https://seo-videos.collegephysicsanswers.com/ch25/pe15/ed1ch25pe15.mp4 237 322 4.5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/all-closest-galaxies-are-receding-our-own-milky-way-galaxy-if-galaxy-120times (a) All but the closest galaxies are receding from our own Milky Way… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe34/thumbs-ed1ch28pe34-00002.png (a) All but the closest galaxies are receding from our own Milky Way Galaxy. If a galaxy 12.0 x 10^{9} ly away is receding from us at 0.900c, at what velocity relative to us must we send an exploratory probe to approach the other galaxy at 0.990c, as measured from that galaxy? (b) How long will it take the probe to reach the other galaxy as measured from the Earth? You may assume that the velocity of the other galaxy remains constant. (c) How long will it then take for a radio signal to be beamed back? (All of this is possible in principle, but not practical.) https://seo-videos.collegephysicsanswers.com/ch28/pe34/ed1ch28pe34.mp4 306 92 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnitude-net-force-exerted-object-x-objects-w-y-and-z-f4-f2-9f4-3f What is the magnitude of the net force exerted on object X by objects… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap40/thumbs-ed1ch18ap40-00002.png What is the magnitude of the net force exerted on object X by objects W, Y, and Z? (a) F/4(b) F/2(c) 9F/4(d) 3F https://seo-videos.collegephysicsanswers.com/ch18/ap40/ed1ch18ap40.mp4 111 2 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-rail-commuter-train-accelerates-rate-135-ms2-how-long-does-it-take-reach A light-rail commuter train accelerates at a rate of 1.35 m/s ^2. How… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe23/thumbs-ed1ch02pe23-00002.png A light-rail commuter train accelerates at a rate of 1.35 m/s ^2. How long does it take to reach its top speed of 80.0 km/h, starting from rest? (b) The same train ordinarily decelerates at a rate of 1.65 m/s ^2. How long does it take to come to a stop from its top speed? (c) In emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. What is its emergency deceleration in m/s ^2? https://seo-videos.collegephysicsanswers.com/ch02/pe23/ed1ch02pe23.mp4 189 867 5 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/narrow-beam-light-containing-yellow-580-nm-and-green-550-nm-wavelengths-goes (a) A narrow beam of light containing yellow (580 nm) and green (550… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe31/thumbs-ed1ch25pe31-00002.png (a) A narrow beam of light containing yellow (580 nm) and green (550 nm) wavelengths goes from polystyrene to air, striking the surface at a 30.0° incident angle. What is the angle between the colors when they emerge? (b) How far would they have to travel to be separated by 1.00 mm? https://seo-videos.collegephysicsanswers.com/ch25/pe31/ed1ch25pe31.mp4 489 185 3.6 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-approximately-1034textrm-j-energy-available-fusion-hydrogen-worlds-oceans There is approximately 10^{34} J of energy available from fusion of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe50/thumbs-ed1ch28pe50-00002.png There is approximately 10^{34} J of energy available from fusion of hydrogen in the world’s oceans. (a) If 10^{33} J of this energy were utilized, what would be the decrease in mass of the oceans? Assume that 0.08% of the mass of a water molecule is converted to energy during the fusion of hydrogen. (b) How great a volume of water does this correspond to? (c) Comment on whether this is a significant fraction of the total mass of the oceans. https://seo-videos.collegephysicsanswers.com/ch28/pe50/ed1ch28pe50.mp4 275 60 5 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/end-race-runner-decelerates-velocity-900-ms-rate-200-ms2-how-far-does-she-travel At the end of a race, a runner decelerates from a velocity of 9.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe25/thumbs-ed1ch02pe25-00002.png At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s ^2 . (a) How far does she travel in the next 5.00 s? (b) What is her final velocity? (c) Evaluate the result. Does it make sense? https://seo-videos.collegephysicsanswers.com/ch02/pe25/ed1ch02pe25.mp4 145 848 4 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/your-cameras-zoom-lens-has-adjustable-focal-length-ranging-800-200-mm-what-its Your camera’s zoom lens has an adjustable focal length ranging from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe37/thumbs-ed1ch25pe37-00002.png Your camera’s zoom lens has an adjustable focal length ranging from 80.0 to 200 mm. What is its range of powers? https://seo-videos.collegephysicsanswers.com/ch25/pe37/ed1ch25pe37.mp4 37 127 4.3 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/slap-shot-hockey-player-accelerates-puck-velocity-800-ms-400-ms-same-direction In a slap shot, a hockey player accelerates the puck from a velocity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe27/thumbs-ed1ch02pe27-00002.png In a slap shot, a hockey player accelerates the puck from a velocity of 8.00 m/s to 40.0 m/s in the same direction. If thisshot takes 3.33 x 10^{-2} s , calculate the distance over which the puck accelerates. https://seo-videos.collegephysicsanswers.com/ch02/pe27/ed1ch02pe27.mp4 73 624 4 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-ev-ir-photon-frequency-200times-1013textrm-hz-b-how-many-these (a) Calculate the energy in eV of an IR photon of frequency 2.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe26/thumbs-ed1ch29pe26-00002.png (a) Calculate the energy in eV of an IR photon of frequency 2.00 x 10^{13} Hz . (b) How many of these photons would need to be absorbed simultaneously by a tightly bound molecule to break it apart? (c) What is the energy in eV of a \gamma ray of frequency 3.00 x 10^{20} Hz ? (d) How many tightly bound molecules could a single such γ ray break apart? https://seo-videos.collegephysicsanswers.com/ch29/pe26/ed1ch29pe26.mp4 181 96 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/difference-energy-between-allowed-oscillator-states-hbr-molecules-0330-ev-what The difference in energy between allowed oscillator states in HBr… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe02/thumbs-ed1ch29pe02-00002.png The difference in energy between allowed oscillator states in HBr molecules is 0.330 eV. What is the oscillation frequency of this molecule? https://seo-videos.collegephysicsanswers.com/ch29/pe02/ed1ch29pe02.mp4 54 95 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-equipotential-lines-vicinity-two-opposite-charges-where-negative-charge Sketch the equipotential lines in the vicinity of two opposite… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe40/thumbs-ed1ch19pe40-00002.png Sketch the equipotential lines in the vicinity of two opposite charges, where the negative charge is three times as great in magnitude as the positive. See Figure 19.34 for a similar situation. Indicate the direction of increasing potential. https://seo-videos.collegephysicsanswers.com/ch19/pe40/ed1ch19pe40.mp4 170 86 5 2020-06-26 yes 2020-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-momentum-400-cm-wavelength-microwave-photon-b-discuss-why-you-expect-answer (a) Find the momentum of a 4.00-cm-wavelength microwave photon. (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe38/thumbs-ed1ch29pe38-00002.png (a) Find the momentum of a 4.00-cm-wavelength microwave photon. (b) Discuss why you expect the answer to (a) to be very small. https://seo-videos.collegephysicsanswers.com/ch29/pe38/ed1ch29pe38.mp4 51 85 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-velocity-electron-atom-known-accuracy-20times-103textrm-ms-reasonably Suppose the velocity of an electron in an atom is known to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe64/thumbs-ed1ch29pe64-00002.png Suppose the velocity of an electron in an atom is known to an accuracy of 2.0 x 10^{3} m/s (reasonably accurate compared with orbital velocities). What is the electron’s minimum uncertainty in position, and how does this compare with the approximate 0.1-nm size of the atom? https://seo-videos.collegephysicsanswers.com/ch29/pe64/ed1ch29pe64.mp4 119 127 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/camera-lens-used-taking-close-photographs-has-focal-length-220-mm-farthest-it A camera lens used for taking close-up photographs has a focal length… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe45/thumbs-ed1ch25pe45-00002.png A camera lens used for taking close-up photographs has a focal length of 22.0 mm. The farthest it can be placed from the film is 33.0 mm. (a) What is the closest object that can be photographed? (b) What is the magnification of this closest object? https://seo-videos.collegephysicsanswers.com/ch25/pe45/ed1ch25pe45.mp4 82 334 4.8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-position-electron-membrane-measured-accuracy-100textrm-mutextrmm-what (a) If the position of an electron in a membrane is measured to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe62/thumbs-ed1ch29pe62-00002.png (a) If the position of an electron in a membrane is measured to an accuracy of 1.00 \mu m , what is the electron’s minimum uncertainty in velocity? (b) If the electron has this velocity, what is its kinetic energy in eV? (c) What are the implications of this energy, comparing it to typical molecular binding energies? https://seo-videos.collegephysicsanswers.com/ch29/pe62/ed1ch29pe62.mp4 152 100 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-displacement-and-velocity-times-0500-b-100-c-150-and-d-200-s-ball Calculate the displacement and velocity at times of (a) 0.500, (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe41/thumbs-ed1ch02pe41-00002.png Calculate the displacement and velocity at times of (a) 0.500, (b) 1.00, (c) 1.50, and (d) 2.00 s for a ball thrown straight up with an initial velocity of 15.0 m/s. Take the point of release to be y\_o = 0. https://seo-videos.collegephysicsanswers.com/ch02/pe41/ed1ch02pe41.mp4 288 1068 3.4 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/basketball-referee-tosses-ball-straight-starting-tip-what-velocity-must A basketball referee tosses the ball straight up for the starting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe43/thumbs-ed1ch02pe43-00002.png A basketball referee tosses the ball straight up for the starting tip-off. At what velocity must a basketball player leave the ground to rise 1.25 m above the floor in an attempt to get the ball? https://seo-videos.collegephysicsanswers.com/ch02/pe43/ed1ch02pe43.mp4 166 743 4.5 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-focal-length-mirror-formed-shiny-back-spoon-has-300-cm-radius (a) Calculate the focal length of the mirror formed by the shiny back… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe55/thumbs-ed1ch25pe55-00002.png (a) Calculate the focal length of the mirror formed by the shiny back of a spoon that has a 3.00 cm radius of curvature. (b) What is its power in diopters? https://seo-videos.collegephysicsanswers.com/ch25/pe55/ed1ch25pe55.mp4 43 162 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-heat-lamp-emits-200-w-mostly-ir-radiation-averaging-1500-nm-wavelength A certain heat lamp emits 200 W of mostly IR radiation averaging 1500… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe74/thumbs-ed1ch29pe74-00002.png A certain heat lamp emits 200 W of mostly IR radiation averaging 1500 nm in wavelength. (a) What is the average photon energy in joules? (b) How many of these photons are required to increase the temperature of a person’s shoulder by 2.0 C ° , assuming the affected mass is 4.0 kg with a specific heat of 0.83 kcal/kg \cdot C °. Also assume no other significant heat transfer. (c) How long does this take? https://seo-videos.collegephysicsanswers.com/ch29/pe74/ed1ch29pe74.mp4 228 13 5 2021-05-04 yes 2021-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dolphin-aquatic-show-jumps-straight-out-water-velocity-130-ms-list-knowns A dolphin in an aquatic show jumps straight up out of the water at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe45/thumbs-ed1ch02pe45-00002.png A dolphin in an aquatic show jumps straight up out of the water at a velocity of 13.0 m/s. (a) List the knowns in this problem. (b) How high does his body rise above the water? To solve this part, first note that the final velocity is now a known and identify its value. Then identify the unknown, and discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, checking units, and discuss whether the answer is reasonable. (c) How long is the dolphin in the air? Neglect any effects due to his size or orientation. https://seo-videos.collegephysicsanswers.com/ch02/pe45/ed1ch02pe45.mp4 229 502 2.7 2018-02-10 yes 2018-02-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hydrogen-atom-excited-state-can-be-ionized-less-energy-when-it-its-ground-state A hydrogen atom in an excited state can be ionized with less energy… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe12/thumbs-ed1ch30pe12-00002.png A hydrogen atom in an excited state can be ionized with less energy than when it is in its ground state. What is n for a hydrogen atom if 0.850 eV of energy can ionize it? https://seo-videos.collegephysicsanswers.com/ch30/pe12/ed1ch30pe12.mp4 77 137 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/aspiring-physicist-wants-build-scale-model-hydrogen-atom-her-science-fair (a) An aspiring physicist wants to build a scale model of a hydrogen… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe06/thumbs-ed1ch30pe06-00002.png (a) An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project. If the atom is 1.00 m in diameter, how big should she try to make the nucleus? (b) How easy will this be to do? https://seo-videos.collegephysicsanswers.com/ch30/pe06/ed1ch30pe06.mp4 90 51 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-ground-state-energy-e0-136textrm-ev-using-e0-dfrac2-pi2-qe4-me-k2h2 Verify that the ground state energy E_0 is 13.6 eV by using E_0 =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe10/thumbs-ed1ch30pe10-00002.png Verify that the ground state energy E_0 is 13.6 eV by using E_0 = \dfrac{2 \pi^2 q_e^4 m_e k^2}{h^2}. https://seo-videos.collegephysicsanswers.com/ch30/pe10/ed1ch30pe10.mp4 89 35 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/object-150-cm-high-held-300-cm-persons-cornea-and-its-reflected-image-measured An object 1.50 cm high is held 3.00 cm from a person’s cornea, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe59/thumbs-ed1ch25pe59-00002.png An object 1.50 cm high is held 3.00 cm from a person’s cornea, and its reflected image is measured to be 0.167 cm high. (a) What is the magnification? (b) Where is the image? (c) Find the radius of curvature of the convex mirror formed by the cornea. (Note that this technique is used by optometrists to measure the curvature of the cornea for contact lens fitting. The instrument used is called a keratometer, or curve measurer.) https://seo-videos.collegephysicsanswers.com/ch25/pe59/ed1ch25pe59.mp4 240 430 4.3 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/people-who-do-very-detailed-work-close-such-jewellers-often-can-see-objects People who do very detailed work close up, such as jewellers, often… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe05/thumbs-ed1ch26pe05-00002.png People who do very detailed work close up, such as jewellers, often can see objects clearly at much closer distance than the normal 25 cm. (a) What is the power of the eyes of a woman who can see an object clearly at a distance of only 8.00 cm? (b) What is the size of an image of a 1.00 mm object, such as lettering inside a ring, held at this distance? (c) What would the size of the image be if the object were held at the normal 25.0 cm distance? https://seo-videos.collegephysicsanswers.com/ch26/pe05/ed1ch26pe05.mp4 156 176 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-height-cliff-if-it-takes-235-s-rock-hit-ground-when-it-thrown-straight (a) Calculate the height of a cliff if it takes 2.35 s for a rock to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe47/thumbs-ed1ch02pe47-00002.png (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long would it take to reach the ground if it is thrown straight down with the same speed? https://seo-videos.collegephysicsanswers.com/ch02/pe47/ed1ch02pe47.mp4 410 1286 4.2 2018-02-13 yes 2018-02-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/coin-dropped-hot-air-balloon-300-m-above-ground-and-rising-100-ms-upward-coin A coin is dropped from a hot-air balloon that is 300 m above the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe57/thumbs-ed1ch02pe57-00002.png A coin is dropped from a hot-air balloon that is 300 m above the ground and rising at 10.0 m/s upward. For the coin, find (a) the maximum height reached, (b) its position and velocity 4.00 s after being released, and (c) the time before it hits the ground. https://seo-videos.collegephysicsanswers.com/ch02/pe57/ed1ch02pe57.mp4 341 718 3.3 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mother-sees-her-childs-eyeglasses-prescription-0750-d-eyeglasses-are-positioned A mother sees that her child’s eyeglasses prescription is 0.750 D,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe23/thumbs-ed1ch26pe23-00002.png A mother sees that her child’s eyeglasses prescription is 0.750 D, for eyeglasses that are positioned 2.20 cm from her eyes. What is the child’s near point? https://seo-videos.collegephysicsanswers.com/ch26/pe23/ed1ch26pe23.mp4 202 123 3 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-wavelength-third-line-lyman-series-and-identify-type-em-radiation Find the wavelength of the third line in the Lyman series, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe08/thumbs-ed1ch30pe08-00002.png Find the wavelength of the third line in the Lyman series, and identify the type of EM radiation. https://seo-videos.collegephysicsanswers.com/ch30/pe08/ed1ch30pe08.mp4 109 176 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-entire-paschen-series-infrared-part-spectrum-do-you-only-need-calculate Show that the entire Paschen series is in the infrared part of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe16/thumbs-ed1ch30pe16-00002.png Show that the entire Paschen series is in the infrared part of the spectrum. To do this, you only need to calculate the shortest wavelength in the series. https://seo-videos.collegephysicsanswers.com/ch30/pe16/ed1ch30pe16.mp4 125 59 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-results-example-example-87-do-conserve-momentum-both-x-and-y-directions Confirm that the results of the example Example 8.7 do conserve… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe46/thumbs-ed1ch08pe46-00002.png Confirm that the results of the example Example 8.7 do conserve momentum in both the x - and y -directions. https://seo-videos.collegephysicsanswers.com/ch08/pe46/ed1ch08pe46.mp4 268 50 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-laser-vision-correction-brief-burst-193-nm-ultraviolet-light-projected (a) During laser vision correction, a brief burst of 193 nm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe39/thumbs-ed1ch26pe39-00002.png (a) During laser vision correction, a brief burst of 193 nm ultraviolet light is projected onto the cornea of the patient. It makes a spot 1.00 mm in diameter and deposits 0.500 mJ of energy. Calculate the depth of the layer ablated, assuming the corneal tissue has the same properties as water and is initially at 34.0° C . The tissue’s temperature is increased to 100° C and evaporated without further temperature increase. (b) Does your answer imply that the shape of the cornea can be finely controlled? https://seo-videos.collegephysicsanswers.com/ch26/pe39/ed1ch26pe39.mp4 249 37 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-approximate-values-calculate-slope-curve-figure-262-verify-velocity-t-300 Using approximate values, calculate the slope of the curve in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe61/thumbs-ed1ch02pe61-00002.png Using approximate values, calculate the slope of the curve in Figure 2.62 to verify that the velocity at t = 30.0 s is 0.24 m/s. https://seo-videos.collegephysicsanswers.com/ch02/pe61/ed1ch02pe61.mp4 78 199 3.5 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/singly-ionized-helium-ion-has-only-one-electron-and-denoted-textrmhe-what-ions A singly ionized helium ion has only one electron and is denoted He… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe20/thumbs-ed1ch30pe20-00002.png A singly ionized helium ion has only one electron and is denoted He ^+ . What is the ion’s radius in the ground state compared to the Bohr radius of hydrogen atom? https://seo-videos.collegephysicsanswers.com/ch30/pe20/ed1ch30pe20.mp4 82 47 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-wavelength-light-has-its-second-order-maximum-450circ-when-falling Calculate the wavelength of light that has its second-order maximum… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe25/thumbs-ed1ch27pe25-00002.png Calculate the wavelength of light that has its second-order maximum at 45.0° when falling on a diffraction grating that has 5000 lines per centimeter. https://seo-videos.collegephysicsanswers.com/ch27/pe25/ed1ch27pe25.mp4 76 100 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-does-diffraction-grating-produces-second-order-maximum-light-having At what angle does a diffraction grating produces a second-order… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe33/thumbs-ed1ch27pe33-00002.png At what angle does a diffraction grating produces a second-order maximum for light having a first-order maximum at 20.0°? https://seo-videos.collegephysicsanswers.com/ch27/pe33/ed1ch27pe33.mp4 92 34 4.3 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-wide-single-slit-produces-its-first-minimum-633-nm-light-angle-280circ-b (a) How wide is a single slit that produces its first minimum for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe45/thumbs-ed1ch27pe45-00002.png (a) How wide is a single slit that produces its first minimum for 633-nm light at an angle of 28.0°? (b) At what angle will the second minimum be? https://seo-videos.collegephysicsanswers.com/ch27/pe45/ed1ch27pe45.mp4 98 76 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-3039-shows-energy-level-diagram-neon-verify-energy-photon-emitted-when Figure 30.39 shows the energy-level diagram for neon. (a) Verify that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe30/thumbs-ed1ch30pe30-00002.png Figure 30.39 shows the energy-level diagram for neon. (a) Verify that the energy of the photon emitted when neon goes from its metastable state to the one immediately below is equal to 1.96 eV. (b) Show that the wavelength of this radiation is 633 nm. (c) What wavelength is emitted when the neon makes a direct transition to its ground state? https://seo-videos.collegephysicsanswers.com/ch30/pe30/ed1ch30pe30.mp4 112 70 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnitude-angular-momentum-l1-electron-b-calculate-magnitude-electrons-spin (a) What is the magnitude of the angular momentum for an l=1… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe40/thumbs-ed1ch30pe40-00002.png (a) What is the magnitude of the angular momentum for an l=1 electron? (b) Calculate the magnitude of the electron’s spin angular momentum. (c) What is the ratio of these angular momenta? https://seo-videos.collegephysicsanswers.com/ch30/pe40/ed1ch30pe40.mp4 58 113 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-single-slit-produces-first-minimum-145circ-what-angle-second-order-minimum-b (a) If a single slit produces a first minimum at 14.5°, at what angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe53/thumbs-ed1ch27pe53-00002.png (a) If a single slit produces a first minimum at 14.5°, at what angle is the second-order minimum? (b) What is the angle of the third-order minimum? (c) Is there a fourth-order minimum? (d) Use your answers to illustrate how the angular width of the central maximum is about twice the angular width of the next maximum (which is the angle between the first and second minima). https://seo-videos.collegephysicsanswers.com/ch27/pe53/ed1ch27pe53.mp4 237 107 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/jet-airplane-flying-darwin-australia-has-air-speed-260-ms-direction-50circ-south (a) A jet airplane flying from Darwin, Australia, has an air speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe58/thumbs-ed1ch03pe58-00002.png (a) A jet airplane flying from Darwin, Australia, has an air speed of 260 m/s in a direction 5.0° south of west. It is in the jet stream, which is blowing at 35.0 m/s in a direction 15° south of east. What is the velocity of the airplane relative to the Earth? (b) Discuss whether your answers are consistent with your expectations for the effect of the wind on the plane's path. https://seo-videos.collegephysicsanswers.com/ch03/pe58/ed1ch03pe58.mp4 324 255 3.4 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/color-television-tube-also-generates-some-x-rays-when-its-electron-beam-strikes A color television tube also generates some x rays when its electron… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe26/thumbs-ed1ch30pe26-00002.png A color television tube also generates some x rays when its electron beam strikes the screen. What is the shortest wavelength of these x rays, if a 30.0-kV potential is used to accelerate the electrons? (Note that TVs have shielding to prevent these x rays from exposing viewers.) https://seo-videos.collegephysicsanswers.com/ch30/pe26/ed1ch30pe26.mp4 131 142 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-figure-352-total-distance-traveled-and-b-magnitude-and Find the following for path A in Figure 3.52: (a) the total distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe01/thumbs-ed1ch03pe01-00002.png Find the following for path A in Figure 3.52: (a) the total distance traveled, and (b) the magnitude and direction of the displacement from start to finish.In Figure 3.52 the various lines represent paths taken by different people walking in a city. All blocks are 120 m on a side. https://d1igkeoc1zsqhw.cloudfront.net/ch03/pe01/ed1ch03pe01.mp4 157 1126 3.8 2018-02-14 no 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/atom-has-electron-ml-2-what-smallest-value-n-electron An atom has an electron with m_l = 2 . What is the smallest value of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe36/thumbs-ed1ch30pe36-00002.png An atom has an electron with m_l = 2 . What is the smallest value of n for this electron? https://seo-videos.collegephysicsanswers.com/ch30/pe36/ed1ch30pe36.mp4 104 66 4.3 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/soap-bubble-thins-it-becomes-dark-because-path-length-difference-becomes-small (a) As a soap bubble thins it becomes dark, because the path length… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe77/thumbs-ed1ch27pe77-00002.png (a) As a soap bubble thins it becomes dark, because the path length difference becomes small compared with the wavelength of light and there is a phase shift at the top surface. If it becomes dark when the path length difference is less than one-fourth the wavelength, what is the thickest the bubble can be and appear dark at all visible wavelengths? Assume the same index of refraction as water. (b) Discuss the fragility of the film considering the thickness found. https://seo-videos.collegephysicsanswers.com/ch27/pe77/ed1ch27pe77.mp4 269 61 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unified-atomic-mass-unit-defined-be-1-u-16605times-10-27textrm-kg-verify-amount The unified atomic mass unit is defined to be 1 u = 1.6605 x 10^{-27}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe10/thumbs-ed1ch31pe10-00002.png The unified atomic mass unit is defined to be 1 u = 1.6605 x 10^{-27} kg . Verify that this amount of mass converted to energy yields 931.5 MeV. Note that you must use four-digit or better values for c and \lvert q_e \rvert. https://seo-videos.collegephysicsanswers.com/ch31/pe10/ed1ch31pe10.mp4 43 54 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-would-muon-example-281-have-lived-observed-earth-if-its-velocity-was (a) How long would the muon in Example 28.1 have lived as observed on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe15/ed1ch28pe15b-thumbnail.jpg (a) How long would the muon in Example 28.1 have lived as observed on the Earth if its velocity was 0.0500c ? (b) How far would it have traveled as observed on the Earth? (c) What distance is this in the muon’s frame? https://seo-videos.collegephysicsanswers.com/ch28/pe15/ed1ch28pe15b.mp4 197 109 5 2024-01-16 yes 2024-01-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spaceship-heading-directly-toward-earth-velocity-0800c-astronaut-board-claims-he A spaceship is heading directly toward the Earth at a velocity of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe19/thumbs-ed1ch28pe19-00002.png A spaceship is heading directly toward the Earth at a velocity of 0.800c . The astronaut on board claims that he can send a canister toward the Earth at 1.20c relative to the Earth. (a) Calculate the velocity the canister must have relative to the spaceship. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch28/pe19/ed1ch28pe19.mp4 195 68 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-planets-are-collision-course-heading-directly-towards-each-other-0250c Two planets are on a collision course, heading directly towards each… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe27/thumbs-ed1ch28pe27-00002.png Two planets are on a collision course, heading directly towards each other at 0.250c . A spaceship sent from one planet approaches the second at 0.750c as seen by the second planet. What is the velocity of the ship relative to the first planet? https://seo-videos.collegephysicsanswers.com/ch28/pe27/ed1ch28pe27.mp4 187 68 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-speed-100-mutextrmg-particle-dust-has-same-momentum-proton-moving (a) Calculate the speed of a 1.00 \mu g particle of dust that has… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe41/thumbs-ed1ch28pe41-00002.png (a) Calculate the speed of a 1.00 \mu g particle of dust that has the same momentum as a proton moving at 0.999c. (b) What does the small speed tell us about the mass of a proton compared to even a tiny amount of macroscopic matter? https://seo-videos.collegephysicsanswers.com/ch28/pe41/ed1ch28pe41.mp4 275 96 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-number-photoelectrons-second-ejected-100-mm2-area-sodium-metal-500-nm (a) Calculate the number of photoelectrons per second ejected from a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe17/thumbs-ed1ch29pe17-00002.png (a) Calculate the number of photoelectrons per second ejected from a 1.00 mm ^2 area of sodium metal by 500-nm EM radiation having an intensity of 1.30 kW/m ^2 (the intensity of sunlight above the Earth’s atmosphere). (b) Given that the binding energy is 2.28 eV, what power is carried away by the electrons? (c) The electrons carry away less power than brought in by the photons. Where does the other power go? How can it be recovered? https://seo-videos.collegephysicsanswers.com/ch29/pe17/ed1ch29pe17.mp4 461 102 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-peak-voltage-generator-rotates-its-200-turn-0100-m-diameter-coil-3600 Calculate the peak voltage of a generator that rotates its 200-turn,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe28/thumbs-ed1ch23pe28-00002.png Calculate the peak voltage of a generator that rotates its 200-turn, 0.100 m diameter coil at 3600 rpm in a 0.800 T field. https://seo-videos.collegephysicsanswers.com/ch23/pe28/ed1ch23pe28.mp4 115 276 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-problem-two-problems-prior-second-leg-you-walk-200-m-direction-400circ (a) Repeat the problem two problems prior, but for the second leg you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe07/thumbs-ed1ch03pe07-00002.png (a) Repeat the problem two problems prior, but for the second leg you walk 20.0 m in a direction 40.0° north of east (which is equivalent to subtracting **B** from **A** — that is, to finding **R' = A - B**).(b) Repeat the problem two problems prior, but now you first walk 20.0 m in a direction 40.0° south of west and then 12.0 m in a direction 20.0° east of south (which is equivalent to subtracting **A** from **B** — that is, to finding **R'' = B - A = - R'**). Show that this is the case. https://seo-videos.collegephysicsanswers.com/ch03/pe07/ed1ch03pe07.mp4 599 286 4 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-components-vtextrmtot-along-x-and-y-axes-figure-355 Find the components of v_ tot along the x and y axes in Figure 3.55. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe11/thumbs-ed1ch03pe11-00002.png Find the components of v_ tot along the x and y axes in Figure 3.55. https://seo-videos.collegephysicsanswers.com/ch03/pe11/ed1ch03pe11.mp4 103 605 4.2 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-sum-vectors-discussed-example-32-gives-result-shown-figure-324-example-32 Show that the sum of the vectors discussed in Example 3.2 gives the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe09/thumbs-ed1ch03pe09-00002.png Show that the sum of the vectors discussed in Example 3.2 gives the result shown in Figure 3.24.Example 3.2: A woman sailing a boat at night is following directions to a dock. The instructions read to first sail 27.5 m in a direction 66.0° north of east from her current location, and then travel 30.0 m in a direction 112° north of east (or 22.0° west of north). Find the location of the dock. https://seo-videos.collegephysicsanswers.com/ch03/pe09/ed1ch03pe09.mp4 348 526 5 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-given-charge-mass-ratios-electrons-and-protons-and-knowing-magnitudes Using the given charge-to-mass ratios for electrons and protons, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe01/thumbs-ed1ch30pe01-00002.png Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton’s mass to the electron’s? (Note that since the charge-to-mass ratios are given to only three-digit accuracy, your answer may differ from the accepted ratio in the fourth digit.) https://d1igkeoc1zsqhw.cloudfront.net/ch30/pe01/ed1ch30pe01.mp4 132 430 5 2019-02-27 no 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/old-campfire-uncovered-during-archaeological-dig-its-charcoal-found-contain-less An old campfire is uncovered during an archaeological dig. Its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe44/thumbs-ed1ch31pe44-00002.png An old campfire is uncovered during an archaeological dig. Its charcoal is found to contain less than 1/1000 the normal amount of {}^{14} C . Estimate the minimum age of the charcoal, noting that 2^{10}=1024. https://seo-videos.collegephysicsanswers.com/ch31/pe44/ed1ch31pe44.mp4 176 636 3 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/beta-particles-emitted-decay-3textrmh-tritium-interact-matter-create-light-glow The \beta^- particles emitted in the decay of {}^3 H (tritium)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe58/thumbs-ed1ch31pe58-00002.png The \beta^- particles emitted in the decay of {}^3 H (tritium) interact with matter to create light in a glow-in-the-dark exit sign. At the time of manufacture, such a sign contains 15.0 Ci of {}^3 H . (a) What is the mass of the tritium? (b) What is its activity 5.00 y after manufacture? https://seo-videos.collegephysicsanswers.com/ch31/pe58/ed1ch31pe58.mp4 152 100 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tree-falls-forest-how-many-years-must-pass-14textrmc-activity-100-g-trees-carbon A tree falls in a forest. How many years must pass before the {}^{14}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe54/thumbs-ed1ch31pe54-00002.png A tree falls in a forest. How many years must pass before the {}^{14} C activity in 1.00 g of the tree’s carbon drops to 1.00 decay per hour? https://seo-videos.collegephysicsanswers.com/ch31/pe54/ed1ch31pe54.mp4 323 89 2.5 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/combing-your-hair-leads-excess-electrons-comb-how-fast-would-you-have-move-comb Combing your hair leads to excess electrons on the comb. How fast… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe10/thumbs-ed1ch24pe10-00002.png Combing your hair leads to excess electrons on the comb. How fast would you have to move the comb up and down to produce red light? https://seo-videos.collegephysicsanswers.com/ch24/pe10/ed1ch24pe10.mp4 86 70 3.7 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-dose-msv-01-gy-x-ray-b-25-mgy-neutron-exposure-eye-c-15-mgy-alpha-exposure What is the dose in mSv for: (a) a 0.1 Gy x-ray? (b) 2.5 mGy of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe08/thumbs-ed1ch32pe08-00002.png What is the dose in mSv for: (a) a 0.1 Gy x-ray? (b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of \alpha exposure? https://seo-videos.collegephysicsanswers.com/ch32/pe08/ed1ch32pe08.mp4 128 36 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-sees-piece-paper-sitting-tablwhich-following-would-not-result-student A student sees a piece of paper sitting on a tablWhich of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap05/thumbs-ed1ch26ap05-00002.png A student sees a piece of paper sitting on a tablWhich of the following would not result in the student observing the paper as yellow? (a) Yellow light shines on a black paper.(b) White light shines on a yellow paper.(c) Yellow light shines on a white paper.(d) Red and green lights shine on a white paper. https://seo-videos.collegephysicsanswers.com/ch26/ap05/ed1ch26ap05.mp4 122 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-total-number-nucleons-total-charge-and-electron-family-number-are Verify that the total number of nucleons, total charge, and electron… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe26/thumbs-ed1ch32pe26-00002.png Verify that the total number of nucleons, total charge, and electron family number are conserved for each of the fusion reactions in the proton-proton cycle in {}^1 H + {}^1 H \rightarrow {}^2 H + e^+ + \nu\_e{}^1 H + {}^2 H \rightarrow {}^3 He + \gamma{}^3 He + {}^3 He \rightarrow {}^4 He + {}^1 H + {}^1 H https://seo-videos.collegephysicsanswers.com/ch32/pe26/ed1ch32pe26.mp4 191 40 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/basketball-player-jumps-he-shoots-ball-describe-forces-are-acting-ball-and A basketball player jumps as he shoots the ball. Describe the forces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap26/thumbs-ed1ch04ap26-00002.png A basketball player jumps as he shoots the ball. Describe the forces that are acting on the ball and on the basketball player. What are the results? https://seo-videos.collegephysicsanswers.com/ch04/ap26/ed1ch04ap26.mp4 141 4 2019-11-14 yes 2019-11-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/activities-131textrmi-and-123textrmi-used-thyroid-scans-are-given-table-321-be The activities of {}^{131} I and {}^{123} I used in thyroid scans… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe06/thumbs-ed1ch32pe06-00002.png The activities of {}^{131} I and {}^{123} I used in thyroid scans are given in [Table 32.1](https://openstax.org/books/college-physics/pages/32-1-medical-imaging-and-diagnostics#eip-909) to be 50 \mu Ci and 70 \mu Ci , respectively. Find and compare the masses of 131 I and 123 I in such scans, given their respective half-lives are 8.04 d and 13.2 h. The masses are so small that the radioiodine is usually mixed with stable iodine as a carrier to ensure normal chemistry and distribution in the body. https://seo-videos.collegephysicsanswers.com/ch32/pe06/ed1ch32pe06.mp4 244 43 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-which-four-fundamental-forces-responsible-ball-bouncing-ground-after-it Explain which of the four fundamental forces is responsible for a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap30/thumbs-ed1ch04ap30-00002.png Explain which of the four fundamental forces is responsible for a ball bouncing off the ground after it hits, and why this force has this effect. https://seo-videos.collegephysicsanswers.com/ch04/ap30/ed1ch04ap30.mp4 213 6 5 2019-11-14 yes 2019-11-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-someone-wanted-build-scale-model-atom-nucleus-100-m-diameter-how-far-away If someone wanted to build a scale model of the atom with a nucleus… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe03/thumbs-ed1ch30pe03-00002.png If someone wanted to build a scale model of the atom with a nucleus 1.00 m in diameter, how far away would the nearest electron need to be? https://seo-videos.collegephysicsanswers.com/ch30/pe03/ed1ch30pe03.mp4 79 416 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-total-energy-released-proton-proton-cycle-267-mev-considering-overall Show that the total energy released in the proton-proton cycle is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe28/thumbs-ed1ch32pe28-00002.png Show that the total energy released in the proton-proton cycle is 26.7 MeV, considering the overall effect in {}^1 H + {}^1 H \rightarrow {}^2 H + e^+ + \nu\_e{}^1 H + {}^2 H \rightarrow {}^3 He + \gamma{}^3 He + {}^3 He \rightarrow {}^4 He + {}^1 H + {}^1 H and being certain to include the annihilation energy. https://seo-videos.collegephysicsanswers.com/ch32/pe28/ed1ch32pe28.mp4 381 30 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/great-astronomer-edwin-hubble-discovered-all-distant-galaxies-are-receding-our The great astronomer Edwin Hubble discovered that all distant… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe63/thumbs-ed1ch03pe63-00002.png The great astronomer Edwin Hubble discovered that all distant galaxies are receding from our Milky Way Galaxy with velocities proportional to their distances. It appears to an observer on the Earth that we are at the center of an expanding universe. Figure 3.62 illustrates this for five galaxies lying along a straight line, with the Milky Way Galaxy at the center. Using the data from the figure, calculate the velocities: (a) relative to galaxy 2 and (b) relative to galaxy 5. The results mean that observers on all galaxies will see themselves at the center of the expanding universe, and they would likely be aware of relative velocities, concluding that it is not possible to locate the center of expansion with the given information. https://seo-videos.collegephysicsanswers.com/ch03/pe63/ed1ch03pe63.mp4 254 175 3.3 2018-02-21 yes 2018-02-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-strengths-weak-and-electromagnetic-forces-under-ordinary (a) Find the ratio of the strengths of the weak and electromagnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe04/thumbs-ed1ch33pe04-00002.png (a) Find the ratio of the strengths of the weak and electromagnetic forces under ordinary circumstances. (b) What does that ratio become under circumstances in which the forces are unified? https://seo-videos.collegephysicsanswers.com/ch33/pe04/ed1ch33pe04.mp4 57 98 5 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/beryllium-ion-single-electron-denoted-be3-excited-state-radius-same-ground-state A beryllium ion with a single electron (denoted Be^{3+} ) is in an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe21/thumbs-ed1ch30pe21-00002.png A beryllium ion with a single electron (denoted Be^{3+} ) is in an excited state with radius the same as that of the ground state of hydrogen. (a) What is n for the Be^{3+} ion? (b) How much energy in eV is needed to ionize the ion from this excited state? https://seo-videos.collegephysicsanswers.com/ch30/pe21/ed1ch30pe21.mp4 141 114 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-heisenberg-uncertainty-principle-calculate-uncertainty-energy-corresponding (a) Use the Heisenberg uncertainty principle to calculate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe20/thumbs-ed1ch34pe20-00002.png (a) Use the Heisenberg uncertainty principle to calculate the uncertainty in energy for a corresponding time interval of 10^{-43} s . (b) Compare this energy with the 10^{19} GeV unification-of-forces energy and discuss why they are similar. https://seo-videos.collegephysicsanswers.com/ch34/pe20/ed1ch34pe20.mp4 103 5 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/planetary-model-atom-pictures-electrons-orbiting-atomic-nucleus-much-planets The planetary model of the atom pictures electrons orbiting the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe15/thumbs-ed1ch02pe15-00002.png The planetary model of the atom pictures electrons orbiting the atomic nucleus much as planets orbit the Sun. In this model you can view hydrogen, the simplest atom, as having a single electron in a circular orbit 1.06 x 10^{-10} m in diameter. (a) If the average speed of the electron in this orbit is known to be 2.20 x 10^6 m/s , calculate the number of revolutions per second it makes about the nucleus. (b) What is the electron's average velocity? https://seo-videos.collegephysicsanswers.com/ch02/pe15/ed1ch02pe15.mp4 204 754 3.7 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-c-figure-356-total-distance-traveled-and-b-magnitude-and Find the following for path C in Figure 3.56: (a) the total distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe13/thumbs-ed1ch03pe13-00002.png Find the following for path C in Figure 3.56: (a) the total distance traveled and (b) the magnitude and direction of the displacement from start to finish. In this part of the problem, explicitly show how you follow the steps of the analytical method of vector addition. https://seo-videos.collegephysicsanswers.com/ch03/pe13/ed1ch03pe13.mp4 130 882 4.5 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-and-neutral-wires-supplying-dc-power-light-rail-commuter-train-carry-800-and (a) The hot and neutral wires supplying DC power to a light-rail… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe50/thumbs-ed1ch22pe50-00002.png (a) The hot and neutral wires supplying DC power to a light-rail commuter train carry 800 A and are separated by 75.0 cm. What is the magnitude and direction of the force between 50.0 m of these wires? (b) Discuss the practical consequences of this force, if any. https://seo-videos.collegephysicsanswers.com/ch22/pe50/ed1ch22pe50.mp4 216 190 5 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-north-and-east-components-displacement-san-francisco-sacramento-shown Find the north and east components of the displacement from San… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe15/thumbs-ed1ch03pe15-00002.png Find the north and east components of the displacement from San Francisco to Sacramento shown in Figure 3.57. https://seo-videos.collegephysicsanswers.com/ch03/pe15/ed1ch03pe15.mp4 156 434 4.4 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/do-exercise-316-again-using-analytical-techniques-and-change-second-leg-walk Do Exercise 3.16 again using analytical techniques and change the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe19/thumbs-ed1ch03pe19-00002.png Do Exercise 3.16 again using analytical techniques and change the second leg of the walk to straight south. (This is equivalent to subtracting **B** from **A**—that is, finding **R' = A - B**) (b) Repeat again, but now you first walk 25.0 m north and then 18.0 m east. (This is equivalent to subtract **A** from **B** — that is, to find **R'' = B - A**. Is that consistent with your result?) https://seo-videos.collegephysicsanswers.com/ch03/pe19/ed1ch03pe19.mp4 317 169 5 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-shortest-wavelength-x-ray-radiation-can-be-generated-x-ray-tube-applied (a) What is the shortest-wavelength x-ray radiation that can be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe25/thumbs-ed1ch30pe25-00002.png (a) What is the shortest-wavelength x-ray radiation that can be generated in an x-ray tube with an applied voltage of 50.0 kV? (b) Calculate the photon energy in eV. (c) Explain the relationship of the photon energy to the applied voltage. https://seo-videos.collegephysicsanswers.com/ch30/pe25/ed1ch30pe25.mp4 141 475 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/attempt-escape-his-island-gilligan-builds-raft-and-sets-sea-wind-shifts-great In an attempt to escape his island, Gilligan builds a raft and sets… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe23/ed1ch03pe23b-thumbnail.jpg In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, and he is blown along the following straight lines: 2.50 km 45.0° north of west; then 4.70 km 60.0° south of east; then 1.30 km 25.0° south of west; then 5.10 km straight east; then 1.70 km 5.00° east of north; then 7.20 km 55.0° south of west; and finally 2.80 km 10.0° north of east. What is his final position relative to the island? https://seo-videos.collegephysicsanswers.com/ch03/pe23/ed1ch03pe23b.mp4 687 841 4 2023-11-22 yes 2023-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/x-ray-tube-has-applied-voltage-100-kv-what-most-energetic-x-ray-photon-it-can An x ray tube has an applied voltage of 100 kV. (a) What is the most… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe27/thumbs-ed1ch30pe27-00002.png An x ray tube has an applied voltage of 100 kV. (a) What is the most energetic x-ray photon it can produce? Express your answer in electron volts and joules. (b) Find the wavelength of such an X–ray. https://seo-videos.collegephysicsanswers.com/ch30/pe27/ed1ch30pe27.mp4 124 369 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/projectile-launched-ground-level-initial-speed-500-ms-angle-300circ-above A projectile is launched at ground level with an initial speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe25/thumbs-ed1ch03pe25-00002.png A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0° above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the _x_ and _y_ distances from where the projectile was launched to where it lands? https://seo-videos.collegephysicsanswers.com/ch03/pe25/ed1ch03pe25.mp4 201 1773 4.2 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-atom-has-electron-n-5-state-ml-3-what-are-possible-values-l If an atom has an electron in the n = 5 state with m_l = 3 , what are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe35/thumbs-ed1ch30pe35-00002.png If an atom has an electron in the n = 5 state with m_l = 3 , what are the possible values of l? https://seo-videos.collegephysicsanswers.com/ch30/pe35/ed1ch30pe35.mp4 117 381 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-what-phosphorescence-and-how-it-differs-fluorescence-which-process Explain what phosphorescence is and how it differs from fluorescence.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap10/thumbs-ed1ch30ap10-00002.png Explain what phosphorescence is and how it differs from fluorescence. Which process typically takes longer and why? https://seo-videos.collegephysicsanswers.com/ch30/ap10/ed1ch30ap10.mp4 144 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-thrown-horizontally-top-600-m-building-and-lands-1000-m-base-building A ball is thrown horizontally from the top of a 60.0-m building and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe27/thumbs-ed1ch03pe27-00002.png A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. (a) How long is the ball in the air? (b) What must have been the initial horizontal component of the velocity? (c) What is the vertical component of the velocity just before the ball hits the ground? (d) What is the velocity (including both the horizontal and vertical components) of the ball just before it hits the ground? https://seo-videos.collegephysicsanswers.com/ch03/pe27/ed1ch03pe27.mp4 469 2230 3.7 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/standing-broad-jump-one-squats-and-then-pushes-legs-see-how-far-one-can-jump In the standing broad jump, one squats and then pushes off with the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe35/thumbs-ed1ch03pe35-00002.png In the standing broad jump, one squats and then pushes off with the legs to see how far one can jump. Suppose the extension of the legs from the crouch position is 0.600 m and the acceleration achieved from this position is 1.25 times the acceleration due to gravity, g . How far can they jump? State your assumptions. (Increased range can be achieved by swinging the arms in the direction of the jump.) https://seo-videos.collegephysicsanswers.com/ch03/pe35/ed1ch03pe35.mp4 201 273 4.5 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/serving-speed-170-kmh-tennis-player-hits-ball-height-25-m-and-angle-theta-below Serving at a speed of 170 km/h, a tennis player hits the ball at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe37/thumbs-ed1ch03pe37-00002.png Serving at a speed of 170 km/h, a tennis player hits the ball at a height of 2.5 m and an angle \theta below the horizontal. The baseline from which the ball is served is 11.9 m from the net, which is 0.91 m high. What is the angle \theta such that the ball just crosses the net? Will the ball land in the service box, whose service line that is 6.40 m from the net? https://seo-videos.collegephysicsanswers.com/ch03/pe37/ed1ch03pe37.mp4 937 439 4.2 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gun-sights-are-adjusted-aim-high-compensate-effect-gravity-effectively-making Gun sights are adjusted to aim high to compensate for the effect of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe39/thumbs-ed1ch03pe39-00002.png Gun sights are adjusted to aim high to compensate for the effect of gravity, effectively making the gun accurate only for a specific range. (a) If a gun is sighted to hit targets that are at the same height as the gun and 100.0 m away, how low will the bullet hit if aimed directly at a target 150.0 m away? The muzzle velocity of the bullet is 275 m/s. (b) Discuss qualitatively how a larger muzzle velocity would affect this problem and what would be the effect of air resistance. https://seo-videos.collegephysicsanswers.com/ch03/pe39/ed1ch03pe39.mp4 382 343 4.3 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-aztextrmxn-notation-refer Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe17/thumbs-ed1ch31pe17-00002.png Write the complete decay equation for the given nuclide in the complete ^A\_Z X \_N notation. Refer to the periodic table for values of Z:\beta^- decay of ^3 H (tritium), a manufactured isotope of hydrogen used in some digital watch displays, and manufactured primarily for use in hydrogen bombs. https://seo-videos.collegephysicsanswers.com/ch31/pe17/ed1ch31pe17.mp4 81 491 3.7 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/football-player-punts-ball-450circ-angle-without-effect-wind-ball-would-travel A football player punts the ball at a 45.0° angle. Without an effect… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe47/thumbs-ed1ch03pe47-00002.png A football player punts the ball at a 45.0° angle. Without an effect from the wind, the ball would travel 60.0 m horizontally. (a) What is the initial speed of the ball? (b) When the ball is near its maximum height it experiences a brief gust of wind that reduces its horizontal velocity by 1.50 m/s. What distance does the ball travel horizontally? https://seo-videos.collegephysicsanswers.com/ch03/pe47/ed1ch03pe47.mp4 369 431 5 2018-02-17 yes 2018-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-basic-forces-best-explains-tension-rope-being-pulled-between-two-people Which of the basic forces best explains tension in a rope being… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap31/thumbs-ed1ch04ap31-00002.png Which of the basic forces best explains tension in a rope being pulled between two people? Is the acting force causing attraction or repulsion in this instance?(a) gravity; attraction(b) electromagnetic; attraction(c) weak and strong nuclear; attraction(d) weak and strong nuclear; repulsion https://seo-videos.collegephysicsanswers.com/ch04/ap31/ed1ch04ap31.mp4 38 4 5 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-aztextrmxn-notation-refer-0 Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe19/thumbs-ed1ch31pe19-00002.png Write the complete decay equation for the given nuclide in the complete ^A\_Z X \_N notation. Refer to the periodic table for values of Z:\beta^+ decay of ^{50} Mn https://seo-videos.collegephysicsanswers.com/ch31/pe19/ed1ch31pe19.mp4 81 277 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-aztextrmxn-notation-refer-3 Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe25/thumbs-ed1ch31pe25-00002.png Write the complete decay equation for the given nuclide in the complete ^A\_Z X \_N notation. Refer to the periodic table for values of Z:\beta^- decay producing ^{137} Ba . The parent nuclide is a major waste product of reactors and has chemistry similar to potassium and sodium, resulting in its concentration in your cells if ingested. https://seo-videos.collegephysicsanswers.com/ch31/pe25/ed1ch31pe25.mp4 99 196 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/taking-slope-curve-figure-260-verify-velocity-jet-car-115-ms-t-20-s-b-taking (a) By taking the slope of the curve in Figure 2.60, verify that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe59/thumbs-ed1ch02pe59-00002.png (a) By taking the slope of the curve in Figure 2.60, verify that the velocity of the jet car is 115 m/s at t = 20 s . (b) By taking the slope of the curve at any point in Figure 2.61, verify that the jet car's acceleration is 5.0 m/s ^2. https://seo-videos.collegephysicsanswers.com/ch02/pe59/ed1ch02pe59.mp4 217 718 5 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ship-sets-sail-rotterdam-netherlands-heading-due-north-700-ms-relative-water A ship sets sail from Rotterdam, The Netherlands, heading due north… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe57/thumbs-ed1ch03pe57-00002.png A ship sets sail from Rotterdam, The Netherlands, heading due north at 7.00 m/s relative to the water. The local ocean current is 1.50 m/s in a direction 40.0° north of east. What is the velocity of the ship relative to the Earth? https://seo-videos.collegephysicsanswers.com/ch03/pe57/ed1ch03pe57.mp4 261 730 3.8 2018-02-21 yes 2018-02-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/60textrmco-source-labeled-400-mci-its-present-activity-found-be-185times A ^{60} Co source is labeled 4.00 mCi, but its present activity is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe45/thumbs-ed1ch31pe45-00002.png A ^{60} Co source is labeled 4.00 mCi, but its present activity is found to be 1.85 x 10^{7} Bq . (a) What is the present activity in mCi? (b) How long ago did it actually have a 4.00-mCi activity? https://seo-videos.collegephysicsanswers.com/ch31/pe45/ed1ch31pe45.mp4 185 476 4.5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-dose-sv-cancer-treatment-exposes-patient-200-gy-g-rays What is the dose in Sv in a cancer treatment that exposes the patient… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe11/thumbs-ed1ch32pe11-00002.png What is the dose in Sv in a cancer treatment that exposes the patient to 200 Gy of γ rays? https://seo-videos.collegephysicsanswers.com/ch32/pe11/ed1ch32pe11.mp4 31 133 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/plumber-nuclear-power-plant-receives-whole-body-dose-30-msv-15-minutes-while A plumber at a nuclear power plant receives a whole-body dose of 30… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe13/thumbs-ed1ch32pe13-00002.png A plumber at a nuclear power plant receives a whole-body dose of 30 mSv in 15 minutes while repairing a crucial valve. Find the radiation-induced yearly risk of death from cancer and the chance of genetic defect from this maximum allowable exposure. https://seo-videos.collegephysicsanswers.com/ch32/pe13/ed1ch32pe13.mp4 95 216 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sandal-dropped-top-150-m-high-mast-ship-moving-175-ms-due-south-calculate A sandal is dropped from the top of a 15.0-m-high mast on a ship… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe61/thumbs-ed1ch03pe61-00002.png A sandal is dropped from the top of a 15.0-m-high mast on a ship moving at 1.75 m/s due south. Calculate the velocity of the sandal when it hits the deck of the ship: (a) relative to the ship and (b) relative to a stationary observer on shore. (c) Discuss how the answers give a consistent result for the position at which the sandal hits the deck. https://seo-videos.collegephysicsanswers.com/ch03/pe61/ed1ch03pe61.mp4 347 580 5 2018-02-21 yes 2018-02-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-dose-sv-chest-patient-given-x-ray-under-following-conditions-x-ray Calculate the dose in Sv to the chest of a patient given an x-ray… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe18/thumbs-ed1ch32pe18-00002.png Calculate the dose in Sv to the chest of a patient given an x-ray under the following conditions. The x-ray beam intensity is 1.50 x 10 W/m ^2, the area of the chest exposed is 0.0750 m ^2 , 35.0% of the x-rays are absorbed in 20.0 kg of tissue, and the exposure time is 0.250 s. https://seo-videos.collegephysicsanswers.com/ch32/pe18/ed1ch32pe18.mp4 149 23 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-radiation-dose-gy-10-msv-fluoroscopic-x-ray-series-b-50-msv-skin-exposure Find the radiation dose in Gy for: (a) A 10-mSv fluoroscopic x-ray… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe09/thumbs-ed1ch32pe09-00002.png Find the radiation dose in Gy for: (a) A 10-mSv fluoroscopic x-ray series. (b) 50 mSv of skin exposure by an \alpha emitter. (c) 160 mSv of \beta^- and \gamma rays from the {}^{40} K in your body. https://seo-videos.collegephysicsanswers.com/ch32/pe09/ed1ch32pe09.mp4 228 330 3.6 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/proton-and-antiproton-collide-head-each-having-kinetic-energy-700-tev-such-lhc A proton and an antiproton collide head-on, with each having a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe11/thumbs-ed1ch33pe11-00002.png A proton and an antiproton collide head-on, with each having a kinetic energy of 7.00 TeV (such as in the LHC at CERN). How much collision energy is available, taking into account the annihilation of the two masses? (Note that this is not significantly greater than the extremely relativistic kinetic energy.) https://seo-videos.collegephysicsanswers.com/ch33/pe11/ed1ch33pe11.mp4 74 26 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/630-kg-sprinter-starts-race-acceleration-420-ms2-what-net-external-force-him A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s ^2.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe01/thumbs-ed1ch04pe01-00002.png A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s ^2. What is the net external force on him? https://d1igkeoc1zsqhw.cloudfront.net/ch04/pe01/ed1ch04pe01.mp4 17 810 5 2018-02-22 no 2018-02-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pi0-its-own-antiparticle-and-decays-following-manner-pi0-gamma-gamma-what-energy The \pi^0 is its own antiparticle and decays in the following manner:… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe13/thumbs-ed1ch33pe13-00002.png The \pi^0 is its own antiparticle and decays in the following manner: \pi^0 \to \gamma + \gamma. What is the energy of each \gamma ray if the \pi^0 is at rest when it decays? https://seo-videos.collegephysicsanswers.com/ch33/pe13/ed1ch33pe13.mp4 110 154 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/estimate-mass-luminous-matter-known-universe-given-there-are-1011-galaxies-each (a) Estimate the mass of the luminous matter in the known universe,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe03/thumbs-ed1ch34pe03-00002.png (a) Estimate the mass of the luminous matter in the known universe, given there are 10^{11} galaxies, each containing 10^{11} stars of average mass 1.5 times that of our Sun. (b) How many protons (the most abundant nuclide) are there in this mass? (c) Estimate the total number of particles in the observable universe by multiplying the answer to (b) by two, since there is an electron for each proton, and then by 10^9 , since there are far more particles (such as photons and neutrinos) in space than in luminous matter. https://seo-videos.collegephysicsanswers.com/ch34/pe03/ed1ch34pe03.mp4 101 9 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cleaner-pushes-450-kg-laundry-cart-such-way-net-external-force-it-600-n A cleaner pushes a 4.50-kg laundry cart in such a way that the net… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe03/thumbs-ed1ch04pe03-00002.png A cleaner pushes a 4.50-kg laundry cart in such a way that the net external force on it is 60.0 N. Calculate the magnitude of its acceleration. https://seo-videos.collegephysicsanswers.com/ch04/pe03/ed1ch04pe03.mp4 47 827 4.3 2018-02-22 yes 2018-02-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-average-density-universe-01-critical-density-needed-closure-what-average Assume the average density of the universe is 0.1 of the critical… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe29/thumbs-ed1ch34pe29-00002.png Assume the average density of the universe is 0.1 of the critical density needed for closure. What is the average number of protons per cubic meter, assuming the universe is composed mostly of hydrogen? https://seo-videos.collegephysicsanswers.com/ch34/pe29/ed1ch34pe29.mp4 50 10 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/core-star-collapses-during-supernova-forming-neutron-star-angular-momentum-core The core of a star collapses during a supernova, forming a neutron… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe17/thumbs-ed1ch34pe17-00002.png The core of a star collapses during a supernova, forming a neutron star. Angular momentum of the core is conserved, and so the neutron star spins rapidly. If the initial core radius is 5.0 x 10^{5} km and it collapses to 10.0 km, find the neutron star's angular velocity in revolutions per second, given the core's angular velocity was originally 1 revolution per 30.0 days. https://seo-videos.collegephysicsanswers.com/ch34/pe17/ed1ch34pe17.mp4 163 11 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/american-football-played-100-yd-long-field-excluding-end-zones-how-long-field American football is played on a 100-yd-long field, excluding the end… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe04/thumbs-ed1ch01pe04-00002.png American football is played on a 100-yd-long field, excluding the end zones. How long is the field in meters? (Assume that 1 meter equals 3.281 feet.) https://seo-videos.collegephysicsanswers.com/ch01/pe04/ed1ch01pe04.mp4 68 323 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/speed-sound-measured-be-342-ms-certain-day-what-kmh The speed of sound is measured to be 342 m/s on a certain day. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe08/thumbs-ed1ch01pe08-00002.png The speed of sound is measured to be 342 m/s on a certain day. What is this in km/h? https://seo-videos.collegephysicsanswers.com/ch01/pe08/ed1ch01pe08.mp4 102 349 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-you-use-your-hand-raise-20-lb-dumbbell-curling-motion-force-your-bicep When you use your hand to raise a 20 lb dumbbell in a curling motion,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap11/thumbs-ed1ch09ap11-00002.png When you use your hand to raise a 20 lb dumbbell in a curling motion, the force on your bicep muscle is not equal to 20 lb. (a) Compare the size of the force placed on your bicep muscle to the force of the 20 lb dumbbell lifted by your hand. Using the concept of torque, which force is greater and explain why the two forces are not identical.(b) Does the force placed on your bicep muscle change as you curl the weight closer toward your body? (In other words, is the force on your muscle different when your forearm is 90° to your upper arm than when it is 45° to your upper arm?) Explain your answer using torque. https://seo-videos.collegephysicsanswers.com/ch09/ap11/ed1ch09ap11.mp4 269 4 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-used-ideal-pulley-type-shown-figure-925a-support-car-engine-mass-115-kg If you used an ideal pulley of the type shown in Figure 9.25(a) to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe24/thumbs-ed1ch09pe24-00002.png If you used an ideal pulley of the type shown in Figure 9.25(a) to support a car engine of mass 115 kg , (a) What would be the tension in the rope? (b) What force must the ceiling supply, assuming you pull straight down on the rope? Neglect the pulley system’s mass. https://seo-videos.collegephysicsanswers.com/ch09/pe24/ed1ch09pe24.mp4 120 369 5 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-have-just-planted-sturdy-2-m-tall-palm-tree-your-front-lawn-your-mothers You have just planted a sturdy 2-m-tall palm tree in your front lawn… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe38/thumbs-ed1ch09pe38-00002.png You have just planted a sturdy 2-m-tall palm tree in your front lawn for your mother’s birthday. Your brother kicks a 500 g ball, which hits the top of the tree at a speed of 5 m/s and stays in contact with it for 10 ms. The ball falls to the ground near the base of the tree and the recoil of the tree is minimal. (a) What is the force on the tree? (b) The length of the sturdy section of the root is only 20 cm. Furthermore, the soil around the roots is loose and we can assume that an effective force is applied at the tip of the 20 cm length. What is the effective force exerted by the end of the tip of the root to keep the tree from toppling? Assume the tree will be uprooted rather than bend. (c) What could you have done to ensure that the tree does not uproot easily? https://seo-videos.collegephysicsanswers.com/ch09/pe38/ed1ch09pe38.mp4 200 59 5 2020-03-25 yes 2020-03-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/under-inflated-volleyball-pumped-full-air-so-its-radius-increases-10-ignoring An under-inflated volleyball is pumped full of air so that its radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/ap01/thumbs-ed1ch11ap01-00002.png An under-inflated volleyball is pumped full of air so that its radius increases by 10%. Ignoring the mass of the air inserted into the ball, what will happen to the volleyball's density? (a) The density of the volleyball will increase by approximately 25%.(b) The density of the volleyball will increase by approximately 10%.(c) The density of the volleyball will decrease by approximately 10%.(d) The density of the volleyball will decrease by approximately 17%.(e) The density of the volleyball will decrease by approximately 25%. https://seo-videos.collegephysicsanswers.com/ch11/ap01/ed1ch11ap01.mp4 130 8 3 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/father-lifts-his-child-shown-figure-942-what-force-should-upper-leg-muscle-exert A father lifts his child as shown in Figure 9.42. What force should… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe34/thumbs-ed1ch09pe34-00002.png A father lifts his child as shown in Figure 9.42. What force should the upper leg muscle exert to lift the child at a constant speed? https://seo-videos.collegephysicsanswers.com/ch09/pe34/ed1ch09pe34.mp4 111 200 5 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-object-or-objects-commonly-exert-forces-following-objects-motion-soccer What object or objects commonly exert forces on the following objects… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap05/thumbs-ed1ch04ap05-00002.png What object or objects commonly exert forces on the following objects in motion? (a) a soccer ball being kicked, (b) a dolphin jumping, (c) a parachutist drifting to Earth. https://seo-videos.collegephysicsanswers.com/ch04/ap05/ed1ch04ap05.mp4 159 4 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/left-side-heart-creates-pressure-120-mm-hg-exerting-force-directly-blood-over The left side of the heart creates a pressure of 120 mm Hg by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe22/thumbs-ed1ch11pe22-00002.png The left side of the heart creates a pressure of 120 mm Hg by exerting a force directly on the blood over an effective area of 15.0 cm ^2. What force does it exert to accomplish this? https://seo-videos.collegephysicsanswers.com/ch11/pe22/ed1ch11pe22.mp4 74 139 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bird-bones-have-air-pockets-them-reduce-their-weight-also-gives-them-average Bird bones have air pockets in them to reduce their weight—this also… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe40/thumbs-ed1ch11pe40-00002.png Bird bones have air pockets in them to reduce their weight—this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 45.0 g and its apparent mass when submerged is 3.60 g (the bone is watertight). (a) What mass of water is displaced? (b) What is the volume of the bone? (c) What is its average density? https://seo-videos.collegephysicsanswers.com/ch11/pe40/ed1ch11pe40.mp4 133 293 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-maximum-force-newtons-exerted-blood-aneurysm-or-ballooning-major Calculate the maximum force in newtons exerted by the blood on an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe76/thumbs-ed1ch11pe76-00002.png Calculate the maximum force in newtons exerted by the blood on an aneurysm, or ballooning, in a major artery, given the maximum blood pressure for this person is 150 mm Hg and the effective area of the aneurysm is 20.0 cm ^2. Note that this force is great enough to cause further enlargement and subsequently greater force on the ever-thinner vessel wall. https://seo-videos.collegephysicsanswers.com/ch11/pe76/ed1ch11pe76.mp4 47 52 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-heavy-lifting-disk-between-spinal-vertebrae-subjected-5000-n During heavy lifting, a disk between spinal vertebrae is subjected to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe77/thumbs-ed1ch11pe77-00002.png During heavy lifting, a disk between spinal vertebrae is subjected to a 5000-N compressional force. (a) What pressure is created, assuming that the disk has a uniform circular cross section 2.00 cm in radius? (b) What deformation is produced if the disk is 0.800 cm thick and has a Young's modulus of 1.5 x 10^9 N/m ^2? https://seo-videos.collegephysicsanswers.com/ch11/pe77/ed1ch11pe77.mp4 67 22 5 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-person-sits-erect-increasing-vertical-position-their-brain-360-cm-heart When a person sits erect, increasing the vertical position of their… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe78/thumbs-ed1ch11pe78-00002.png When a person sits erect, increasing the vertical position of their brain by 36.0 cm, the heart must continue to pump blood to the brain at the same rate. (a) What is the gain in gravitational potential energy for 100 mL of blood raised 36.0 cm? (b) What is the drop in pressure, neglecting any losses due to friction? (c) Discuss how the gain in gravitational potential energy and the decrease in pressure are related. https://seo-videos.collegephysicsanswers.com/ch11/pe78/ed1ch11pe78.mp4 251 66 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-pressure-due-ocean-bottom-marianas-trench-near-philippines-given-its Calculate the pressure due to the ocean at the bottom of the Marianas… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe82/thumbs-ed1ch11pe82-00002.png Calculate the pressure due to the ocean at the bottom of the Marianas Trench near the Philippines, given its depth is 11.0 km and assuming the density of sea water is constant all the way down. (b) Calculate the percent decrease in volume of sea water due to such a pressure, assuming its bulk modulus is the same as water and is constant. (c) What would be the percent increase in its density? Is the assumption of constant density valid? Will the actual pressure be greater or smaller than that calculated under this assumption? https://seo-videos.collegephysicsanswers.com/ch11/pe82/ed1ch11pe82.mp4 291 18 5 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-pumping-bicycle-tire-hand-pump-piston-which-has-200-cm-radius-what-force You are pumping up a bicycle tire with a hand pump, the piston of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe85/thumbs-ed1ch11pe85-00002.png You are pumping up a bicycle tire with a hand pump, the piston of which has a 2.00-cm radius. (a) What force in newtons must you exert to create a pressure of 6.90 x 10^5 Pa (b) What is unreasonable about this (a) result? (c) Which premises are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch11/pe85/ed1ch11pe85.mp4 92 10 5 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/35-cm-diameter-pipe-contains-pumping-mechanism-provides-force-320-n-push-water A 3.5-cm-diameter pipe contains a pumping mechanism that provides a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap08/thumbs-ed1ch12ap08-00002.png A 3.5-cm-diameter pipe contains a pumping mechanism that provides a force of 320 N to push water up into a tall building. Upon entering the piston mechanism, the water is flowing at a rate of 2.5 m/s. The water is then pumped to a level 21 m higher where the other end of the pipe is open to the air. With what speed does water leave the pipe? https://seo-videos.collegephysicsanswers.com/ch12/ap08/ed1ch12ap08.mp4 213 10 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pipe-tapered-so-large-end-has-diameter-twice-large-small-end-what-must-be-gauge A pipe is tapered so that the large end has a diameter twice as large… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/ap10/thumbs-ed1ch12ap10-00002.png A pipe is tapered so that the large end has a diameter twice as large as the small end. What must be the gauge pressure (the difference between pressure at the large end and pressure at the small end) in order for water to emerge from the small end with a speed of 12 m/s if the small end is elevated 8 m above the large end of the pipe? https://seo-videos.collegephysicsanswers.com/ch12/ap10/ed1ch12ap10.mp4 220 8 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/good-quality-measuring-tape-can-be-050-cm-over-distance-20-m-what-its-percent A good-quality measuring tape can be off by 0.50 cm over a distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe12/thumbs-ed1ch01pe12-00002.png A good-quality measuring tape can be off by 0.50 cm over a distance of 20 m. What is its percent uncertainty? https://seo-videos.collegephysicsanswers.com/ch01/pe12/ed1ch01pe12.mp4 72 551 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sump-pump-used-drain-water-basement-houses-built-below-water-table-draining A sump pump (used to drain water from the basement of houses built… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe28/thumbs-ed1ch12pe28-00002.png A sump pump (used to drain water from the basement of houses built below the water table) is draining a flooded basement at the rate of 0.750 L/s, with an output pressure of 3.00 x 10^{5} N/m ^2. (a) The water enters a hose with a 3.00-cm inside diameter and rises 2.50 m above the pump. What is its pressure at this point? (b) The hose goes over the foundation wall, losing 0.500 m in height, and widens to 4.00 cm in diameter. What is the pressure now? You may neglect frictional losses in both parts of the problem. https://seo-videos.collegephysicsanswers.com/ch12/pe28/ed1ch12pe28.mp4 566 274 3.3 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spherical-particle-falling-terminal-speed-liquid-must-have-gravitational-force A spherical particle falling at a terminal speed in a liquid must… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe38/thumbs-ed1ch12pe38-00002.png A spherical particle falling at a terminal speed in a liquid must have the gravitational force balanced by the drag force and the buoyant force. The buoyant force is equal to the weight of the displaced fluid, while the drag force is assumed to be given by Stokes Law, F_s = 6 \pi r \eta v . Show that the terminal speed is given by v = \dfrac{2R^2g}{9 \eta} \left ( \rho_s - \rho_1 \right ), where R is the radius of the sphere, \rho_s is its density, and \rho_1 is the density of the fluid and \eta the coefficient of viscosity. https://seo-videos.collegephysicsanswers.com/ch12/pe38/ed1ch12pe38.mp4 308 30 5 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-volume-textrmkm3-avogadros-number-sand-grains-if-each-grain-cube-and-has (a) What is the volume (in km ^3) of Avogadro’s number of sand… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe30/thumbs-ed1ch13pe30-00002.png (a) What is the volume (in km ^3) of Avogadro’s number of sand grains if each grain is a cube and has sides that are 1.0 mm long? (b) How many kilometers of beaches in length would this cover if the beach averages 100 m in width and 10.0 m in depth? Neglect air spaces between grains. https://seo-videos.collegephysicsanswers.com/ch13/pe30/ed1ch13pe30.mp4 156 131 3 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-density-water-vapor-textrmgm3-hot-dry-day-desert-when-temperature What is the density of water vapor in g/m ^3 on a hot dry day in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe56/thumbs-ed1ch13pe56-00002.png What is the density of water vapor in g/m ^3 on a hot dry day in the desert when the temperature is 40.0° C and the relative humidity is 6.00%? https://seo-videos.collegephysicsanswers.com/ch13/pe56/ed1ch13pe56.mp4 74 24 2020-05-12 yes 2020-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/vapor-pressure-water-400circtextrmc-734times-103textrm-nm2-using-ideal-gas-law The vapor pressure of water at 40.0° C is 7.34 x 10^{3} N/m ^2.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe58/thumbs-ed1ch13pe58-00002.png The vapor pressure of water at 40.0° C is 7.34 x 10^{3} N/m ^2. Using the ideal gas law, calculate the density of water vapor in g/m ^3 that creates a partial pressure equal to this vapor pressure. The result should be the same as the saturation vapor density at that temperature (51.1 g/m ^3). https://seo-videos.collegephysicsanswers.com/ch13/pe58/ed1ch13pe58.mp4 218 34 2020-05-12 yes 2020-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/reference-example-141-why-does-change-temperature-ice-indicate-it-has-entirely With reference to [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap04/thumbs-ed1ch14ap04-00002.png With reference to [Example 14.1](https://openstax.org/books/college-physics/pages/14-2-temperature-change-and-heat-capacity#fs-id3253461), why does the change in the temperature of the ice indicate that it has entirely melted? https://seo-videos.collegephysicsanswers.com/ch14/ap04/ed1ch14ap04.mp4 74 4 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-wish-design-saucepan-has-same-rate-thermal-conduction-pan-made-silver-you You wish to design a saucepan that has the same rate of thermal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap06/thumbs-ed1ch14ap06-00002.png You wish to design a saucepan that has the same rate of thermal conduction as a pan made of silver. You need to use a less costly material, and limit the size of the pan so that the surface area in contact with a range heating element is no more than 50% greater than that of the hypothetical silver pan. Explain what other factor(s) can be adjusted, and by how much, so that your design will be successful. Use [Table 14.3](https://openstax.org/books/college-physics/pages/14-5-conduction#import-auto-id1245788) to obtain thermal conductivity values for different substances. https://seo-videos.collegephysicsanswers.com/ch14/ap06/ed1ch14ap06.mp4 571 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/warm-sunny-day-car-parked-along-street-where-there-no-shade-cars-windows-are On a warm, sunny day, a car is parked along a street where there is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap10/thumbs-ed1ch14ap10-00002.png On a warm, sunny day, a car is parked along a street where there is no shade. The car’s windows are closed. The air inside the car becomes noticeably warmer than the air outside. What factors contribute to the higher temperature? https://seo-videos.collegephysicsanswers.com/ch14/ap10/ed1ch14ap10.mp4 96 4 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/it-difficult-extinguish-fire-crude-oil-tanker-because-each-liter-crude-oil (a) It is difficult to extinguish a fire on a crude oil tanker,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe20/thumbs-ed1ch14pe20-00002.png (a) It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases 2.80 x 10^{7} J of energy when burned. To illustrate this difficulty, calculate the number of liters of water that must be expended to absorb the energy released by burning 1.00 L of crude oil, if the water has its temperature raised from 20.0° C to 100° C , it boils, and the resulting steam is raised to 300° C . (b) Discuss additional complications caused by the fact that crude oil has a smaller density than water. https://seo-videos.collegephysicsanswers.com/ch14/pe20/ed1ch14pe20.mp4 254 90 4 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-heavy-exercise-body-pumps-200-l-blood-minute-surface-where-it-cooled During heavy exercise, the body pumps 2.00 L of blood per minute to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe52/thumbs-ed1ch14pe52-00002.png During heavy exercise, the body pumps 2.00 L of blood per minute to the surface, where it is cooled by 2.00 C °. What is the rate of heat transfer from this forced convection alone, assuming blood has the same specific heat as water and its density is 1050 kg/m ^3 ? https://seo-videos.collegephysicsanswers.com/ch14/pe52/ed1ch14pe52.mp4 135 82 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/look-figure-1543-and-assign-values-three-pressures-and-two-volumes-given-graph Look at Figure 15.43, and assign values to the three pressures and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap12/thumbs-ed1ch15ap12-00002.png Look at Figure 15.43, and assign values to the three pressures and two volumes given in the graph. Then calculate the net work for the cycle ABCFEDCFA using those values. How does this work compare to the heat output or input of the system? Which value(s) would you change to maximize the net work per cycle? https://seo-videos.collegephysicsanswers.com/ch15/ap12/ed1ch15ap12.mp4 264 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/high-temperature-reservoir-losing-heat-and-hence-entropy-reversible-process-low A high temperature reservoir losing heat and hence entropy is a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap14/thumbs-ed1ch15ap14-00002.png A high temperature reservoir losing heat and hence entropy is a reversible process. A low temperature reservoir gaining a certain amount of heat and hence entropy is a reversible process. But a high temperature reservoir losing heat to a low temperature reservoir is irreversible. Why? https://seo-videos.collegephysicsanswers.com/ch15/ap14/ed1ch15ap14.mp4 98 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-best-coefficient-performance-possible-hypothetical-refrigerator-could-make What is the best coefficient of performance possible for a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe39/thumbs-ed1ch15pe39-00002.png What is the best coefficient of performance possible for a hypothetical refrigerator that could make liquid nitrogen at -200° C and has heat transfer to the environment at 35.0° C ? https://seo-videos.collegephysicsanswers.com/ch15/pe39/ed1ch15pe39.mp4 295 38 1.4 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/splashing-liquid-resembles-oscillation-restoring-force-scenario-will-be-due The splashing of a liquid resembles an oscillation. The restoring… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap04/thumbs-ed1ch16ap04-00002.png The splashing of a liquid resembles an oscillation. The restoring force in this scenario will be due to which of the following? (a) Potential energy(b) Kinetic energy(c) Gravity(d) Mechanical energy https://seo-videos.collegephysicsanswers.com/ch16/ap04/ed1ch16ap04.mp4 32 6 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-will-spring-has-force-constant-400-nm-be-stretched-object-mass-0500-kg (a) How much will a spring that has a force constant of 40.0 N/m be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe44/thumbs-ed1ch16pe44-00002.png (a) How much will a spring that has a force constant of 40.0 N/m be stretched by an object with a mass of 0.500 kg when hung motionless from the spring? (b) Calculate the decrease in gravitational potential energy of the 0.500-kg object when it descends this distance. (c) Part of this gravitational energy goes into the spring. Calculate the energy stored in the spring by this stretch, and compare it with the gravitational potential energy. Explain where the rest of the energy might go. https://seo-videos.collegephysicsanswers.com/ch16/pe44/ed1ch16pe44.mp4 142 130 5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/twin-jet-engines-airplane-are-producing-average-sound-frequency-4100-hz-beat Twin jet engines on an airplane are producing an average sound… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe60/thumbs-ed1ch16pe60-00002.png Twin jet engines on an airplane are producing an average sound frequency of 4100 Hz with a beat frequency of 0.500 Hz. What are their individual frequencies? https://seo-videos.collegephysicsanswers.com/ch16/pe60/ed1ch16pe60.mp4 266 110 4.7 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/baggage-handler-stands-edge-runway-landing-plane-approaches-compared-pitch-plane A baggage handler stands on the edge of a runway as a landing plane… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap05/thumbs-ed1ch17ap05-00002.png A baggage handler stands on the edge of a runway as a landing plane approaches. Compared to the pitch of the plane as heard by the plane’s pilot, which of the following correctly describes the sensation experienced by the handler? (a) The frequency of the plane will be lower pitched according to the baggage handler and will become even lower pitched as the plane slows to a stop.(b) The frequency of the plane will be lower pitched according to the baggage handler but will increase in pitch as the plane slows to a stop.(c) The frequency of the plane will be higher pitched according to the baggage handler but will decrease in pitch as the plane slows to a stop.(d) The frequency of the plane will be higher pitched according to the baggage handler and will further increase in pitch as the plane slows to a stop. https://seo-videos.collegephysicsanswers.com/ch17/ap05/ed1ch17ap05.mp4 66 2 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/common-misconception-two-wave-pulses-traveling-opposite-directions-will-reflect A common misconception is that two wave pulses traveling in opposite… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap07/thumbs-ed1ch17ap07-00002.png A common misconception is that two wave pulses traveling in opposite directions will reflect off each other. Outline a procedure that you would use to convince someone that the two wave pulses do not reflect off each other, but instead travel through each other. You may use sketches to represent your understanding. Be sure to provide evidence to not only refute the original claim, but to support yours as well. https://seo-videos.collegephysicsanswers.com/ch17/ap07/ed1ch17ap07.mp4 99 4 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/string-vibrating-between-two-posts-shown-abovstudents-are-determine-speed-wave A string is vibrating between two posts as shown abovStudents are to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap13/thumbs-ed1ch17ap13-00002.png A string is vibrating between two posts as shown abovStudents are to determine the speed of the wave within this string. They have already measured the amount of time necessary for the wave to oscillate up and down. The students must also take what other measurements to determine the speed of the wave? (a) The distance between the two posts.(b) The amplitude of the wave(c) The tension in the string(d) The amplitude of the wave and the tension in the string(e) The distance between the two posts, the amplitude of(f) the wave, and the tension in the string https://seo-videos.collegephysicsanswers.com/ch17/ap13/ed1ch17ap13.mp4 66 4 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tube-open-one-end-if-fundamental-frequency-f-created-wavelength-l-then-which A tube is open at one end. If the fundamental frequency f is created… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap15/thumbs-ed1ch17ap15-00002.png A tube is open at one end. If the fundamental frequency f is created by a wavelength λ, then which of the following describes the frequency and wavelength associated with the tube’s fourth overtone? https://seo-videos.collegephysicsanswers.com/ch17/ap15/ed1ch17ap15.mp4 195 2 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-student-blows-across-glass-half-full-water-resonant-frequency-created When a student blows across a glass half-full of water, a resonant… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap17/thumbs-ed1ch17ap17-00002.png When a student blows across a glass half-full of water, a resonant frequency is created within the air column remaining in the glass. Which of the following can the student do to increase this resonant frequency? (a) Add more water to the glass.(b) Replace the water with a more dense fluid.(c) Increase the temperature of the room. (a) I only(b) I and III(c) II and III(d) all of the above https://seo-videos.collegephysicsanswers.com/ch17/ap17/ed1ch17ap17.mp4 141 2 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/musician-stands-outside-field-and-plucks-string-acoustic-guitar-standing-waves A musician stands outside in a field and plucks a string on an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap19/thumbs-ed1ch17ap19-00002.png A musician stands outside in a field and plucks a string on an acoustic guitar. Standing waves will most likely occur in which of the following media? Select two answers. (a) The guitar string(b) The air inside the guitar(c) The air surrounding the guitar(d) The ground beneath the musician https://seo-videos.collegephysicsanswers.com/ch17/ap19/ed1ch17ap19.mp4 61 2 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ear-trumpets-were-never-very-common-they-did-aid-people-hearing-losses-gathering (a) Ear trumpets were never very common, but they did aid people with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe27/thumbs-ed1ch17pe27-00002.png (a) Ear trumpets were never very common, but they did aid people with hearing losses by gathering sound over a large area and concentrating it on the smaller area of the eardrum. What decibel increase does an ear trumpet produce if its sound gathering area is 900 cm ^2 and the area of the eardrum is 0.500 cm ^2, but the trumpet only has an efficiency of 5.00% in transmitting the sound to the eardrum? (b) Comment on the usefulness of the decibel increase found in part (a). https://seo-videos.collegephysicsanswers.com/ch17/pe27/ed1ch17pe27.mp4 277 60 3.8 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-size-smallest-detail-observable-human-tissue-200-mhz-ultrasound-b-its (a) Find the size of the smallest detail observable in human tissue… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe78/thumbs-ed1ch17pe78-00002.png (a) Find the size of the smallest detail observable in human tissue with 20.0-MHz ultrasound. (b) Is its effective penetration depth great enough to examine the entire eye (about 3.00 cm is needed)? (c) What is the wavelength of such ultrasound in 0° C air? https://seo-videos.collegephysicsanswers.com/ch17/pe78/ed1ch17pe78.mp4 89 32 5 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dolphin-able-tell-dark-ultrasound-echoes-received-two-sharks-come-two-different A dolphin is able to tell in the dark that the ultrasound echoes… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe82/thumbs-ed1ch17pe82-00002.png A dolphin is able to tell in the dark that the ultrasound echoes received from two sharks come from two different objects only if the sharks are separated by 3.50 m, one being that much farther away than the other. (a) If the ultrasound has a frequency of 100 kHz, show this ability is not limited by its wavelength. (b) If this ability is due to the dolphin’s ability to detect the arrival times of echoes, what is the minimum time difference the dolphin can perceive? https://seo-videos.collegephysicsanswers.com/ch17/pe82/ed1ch17pe82.mp4 165 16 5 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-traveling-speed-33-ms-what-its-speed-kilometers-hour-b-it-exceeding-90-kmh A car is traveling at a speed of 33 m/s. (a) What is its speed in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe02/thumbs-ed1ch01pe02-00002.png A car is traveling at a speed of 33 m/s. (a) What is its speed in kilometers per hour? (b) Is it exceeding the 90 km/h speed limit? https://seo-videos.collegephysicsanswers.com/ch01/pe02/ed1ch01pe02.mp4 151 504 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-pulling-two-red-wagons-second-one-tied-first-non-stretching-rope-each A child is pulling two red wagons, with the second one tied to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap16/thumbs-ed1ch07ap16-00002.png A child is pulling two red wagons, with the second one tied to the first by a (non-stretching) rope. Each wagon has a mass of 10 kg. If the child exerts a force of 30 N for 5.0 m, how much has the kinetic energy of the two-wagon system changed? (a) 300 J(b) 150 J(c) 75 J(d) 60 J https://seo-videos.collegephysicsanswers.com/ch07/ap16/ed1ch07ap16.mp4 50 4 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/glass-coffee-pot-has-circular-bottom-900-cm-diameter-contact-heating-element A glass coffee pot has a circular bottom with a 9.00-cm diameter in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe54/thumbs-ed1ch14pe54-00002.png A glass coffee pot has a circular bottom with a 9.00-cm diameter in contact with a heating element that keeps the coffee warm with a continuous heat transfer rate of 50.0 W (a) What is the temperature of the bottom of the pot, if it is 3.00 mm thick and the inside temperature is 60.0° C ? (b) If the temperature of the coffee remains constant and all of the heat transfer is removed by evaporation, how many grams per minute evaporate? Take the heat of vaporization to be 2340 kJ/kg. https://seo-videos.collegephysicsanswers.com/ch14/pe54/ed1ch14pe54.mp4 250 44 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-three-microscopic-latex-spheres-are-sprayed-chamber-and-become-0 In an experiment, three microscopic latex spheres are sprayed into a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap02/thumbs-ed1ch18ap02-00002.png In an experiment, three microscopic latex spheres are sprayed into a chamber and become charged with +3e, +5e, and −3e, respectively. Later, all three spheres collide simultaneously and then separate. Which of the following are possible values for the final charges on the spheres? Select two answers. https://seo-videos.collegephysicsanswers.com/ch18/ap02/ed1ch18ap02.mp4 96 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-student-runs-comb-through-his-hair-several-times-and-brings-it-close In an experiment, a student runs a comb through his hair several… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap07/thumbs-ed1ch18ap07-00002.png In an experiment, a student runs a comb through his hair several times and brings it close to small pieces of paper. Which of the following will he observe? (a) Pieces of paper repel the comb.(b) Pieces of paper are attracted to the comb.(c) Some pieces of paper are attracted and some repel the comb.(d) There is no attraction or repulsion between the pieces of paper and the comb. https://seo-videos.collegephysicsanswers.com/ch18/ap07/ed1ch18ap07.mp4 53 2018-06-14 yes 2018-06-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-negatively-charged-balloon-balloon-x-repelled-another-charged-balloon In an experiment a negatively charged balloon (balloon X) is repelled… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap08/thumbs-ed1ch18ap08-00002.png In an experiment a negatively charged balloon (balloon X) is repelled by another charged balloon Y. However, an object Z is attracted to balloon Y. Which of the following can be the charge on Z? Select two answers. (a) negative(b) positive(c) neutral(d) cannot be determined https://seo-videos.collegephysicsanswers.com/ch18/ap08/ed1ch18ap08.mp4 75 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-object-has-charge-1-c-and-gains-688-times-1018-electrons-what-will-be Suppose an object has a charge of 1 C and gains 6.88 x 10^{18}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap09/thumbs-ed1ch18ap09-00002.png Suppose an object has a charge of 1 C and gains 6.88 x 10^{18} electrons. (a) What will be the net charge of the object?(b) If the object has gained electrons from a neutral object, what will be the charge on the neutral object?(c) Find and explain the relationship between the total charges of the two objects before and after the transfer.(d) When a third object is brought in contact with the first object (after it gains the electrons), the resulting charge on the third object is 0.4 What was its initial charge? https://seo-videos.collegephysicsanswers.com/ch18/ap09/ed1ch18ap09.mp4 247 8 2018-06-14 yes 2018-06-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-system-you-use-daily-internal-potential-energy Describe a system you use daily with internal potential energy. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap26/thumbs-ed1ch07ap26-00002.png Describe a system you use daily with internal potential energy. https://seo-videos.collegephysicsanswers.com/ch07/ap26/ed1ch07ap26.mp4 40 6 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/4-ton-air-conditioner-removes-506-times-107-j-48000-british-thermal-units-cold A 4-ton air conditioner removes 5.06 x 10^7 J (48,000 British… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe45/thumbs-ed1ch15pe45-00002.png A 4-ton air conditioner removes 5.06 x 10^7 J (48,000 British thermal units) from a cold environment in 1.00 h. (a) What energy input in joules is necessary to do this if the air conditioner has an energy efficiency rating (EER) of 12.0? (b) What is the cost of doing this if the work costs 10.0 cents per 3.60 x 10^6 J (one kilowatt-hour)? (c) Discuss whether this cost seems realistic. Note that the energy efficiency rating (EER) of an air conditioner or refrigerator is defined to be the number of British thermal units of heat transfer from a cold environment per hour divided by the watts of power input. https://seo-videos.collegephysicsanswers.com/ch15/pe45/ed1ch15pe45.mp4 179 22 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-very-first-clocks-invented-china-were-powered-water-describe-how-you-think Some of the very first clocks invented in China were powered by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap30/thumbs-ed1ch07ap30-00002.png Some of the very first clocks invented in China were powered by water. Describe how you think this was done. https://seo-videos.collegephysicsanswers.com/ch07/ap30/ed1ch07ap30.mp4 76 2 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/appalachians-along-interstate-there-are-ramps-loose-gravel-semis-have-had-their In the Appalachians, along the interstate, there are ramps of loose… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap32/thumbs-ed1ch07ap32-00002.png In the Appalachians, along the interstate, there are ramps of loose gravel for semis that have had their brakes fail to drive into to stop. Design an experiment to measure how effective this would be. https://seo-videos.collegephysicsanswers.com/ch07/ap32/ed1ch07ap32.mp4 139 4 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-object-lifted-crane-it-begins-and-ends-its-motion-rest-same-true-object When an object is lifted by a crane, it begins and ends its motion at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap34/thumbs-ed1ch07ap34-00002.png When an object is lifted by a crane, it begins and ends its motion at rest. The same is true of an object pushed across a rough surface. Explain why this happens. What are the differences between these systems? https://seo-videos.collegephysicsanswers.com/ch07/ap34/ed1ch07ap34.mp4 240 2 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-has-two-red-wagons-rear-one-tied-front-stretchy-rope-spring-if-child-0 A child has two red wagons, with the rear one tied to the front by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap36/thumbs-ed1ch07ap36-00002.png A child has two red wagons, with the rear one tied to the front by a stretchy rope (a spring). If the child pulls on the front wagon, the energy stored in the system increases. How do the relative amounts of potential and kinetic energy in this system change over time? https://seo-videos.collegephysicsanswers.com/ch07/ap36/ed1ch07ap36.mp4 75 2 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-real-world-example-closed-system Describe a real-world example of a closed system. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap38/thumbs-ed1ch07ap38-00002.png Describe a real-world example of a closed system. https://seo-videos.collegephysicsanswers.com/ch07/ap38/ed1ch07ap38.mp4 66 2 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-47-net-external-force-24-kg-mower-stated-be-51-n-if-force-friction In Figure 4.7, the net external force on the 24-kg mower is stated to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe05/thumbs-ed1ch04pe05-00002.png In Figure 4.7, the net external force on the 24-kg mower is stated to be 51 N. If the force of friction opposing the motion is 24 N, what force (in newtons) is the person exerting on the mower? Suppose the mower is moving at 1.5 m/s when the force is removed. How far will the mower go before stopping? https://seo-videos.collegephysicsanswers.com/ch04/pe05/ed1ch04pe05.mp4 228 1751 3.7 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-instance-today-which-you-did-work-scientific-definition-then-calculate Describe an instance today in which you did work, by the scientific… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap42/thumbs-ed1ch07ap42-00002.png Describe an instance today in which you did work, by the scientific definition. Then calculate how much work you did in that instance, showing your work. https://seo-videos.collegephysicsanswers.com/ch07/ap42/ed1ch07ap42.mp4 26 2 2021-02-02 yes 2021-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-waves-you-create-swimming-pool-if-you-splash-your-hand-rate-200 What is the wavelength of the waves you create in a swimming pool if… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe52/thumbs-ed1ch16pe52-00002.png What is the wavelength of the waves you create in a swimming pool if you splash your hand at a rate of 2.00 Hz and the waves propagate at 0.800 m/s? https://seo-videos.collegephysicsanswers.com/ch16/pe52/ed1ch16pe52.mp4 33 47 5 2020-06-06 yes 2020-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-following-observations-are-made-student-four-charged-objects-w-x-y In an experiment the following observations are made by a student for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap11/thumbs-ed1ch18ap11-00002.png In an experiment the following observations are made by a student for four charged objects W, X, Y, and Z. (a) A glass rod rubbed with silk attracts W.(b) W attracts Z and X.(c) X attracts Z but repels Y.(d) Y attracts W and Z.Estimate whether the charges on each of the four objects are positive, negative, or neutral.Note that this question has been modified slightly since the original version found in the OpenStax text has no possible solution. https://seo-videos.collegephysicsanswers.com/ch18/ap11/ed1ch18ap11.mp4 257 2 2018-06-14 yes 2018-06-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-students-experimenting-uncharged-metal-sphere-want-give-sphere-net-charge Some students experimenting with an uncharged metal sphere want to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap12/thumbs-ed1ch18ap12-00002.png Some students experimenting with an uncharged metal sphere want to give the sphere a net charge using a charged aluminum pie plate. Which of the following steps would give the sphere a net charge of the same sign as the pie plate? (a) bringing the pie plate close to, but not touching, the metal sphere, then moving the pie plate away.(b) bringing the pie plate close to, but not touching, the metal sphere, then momentarily touching a grounding wire to the metal sphere.(c) bringing the pie plate close to, but not touching, the metal sphere, then momentarily touching a grounding wire to the pie plate.(d) touching the pie plate to the metal sphere. https://seo-videos.collegephysicsanswers.com/ch18/ap12/ed1ch18ap12.mp4 221 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-balloon-brought-closer-sphere-there-will-be-redistribution-charges-what When the balloon is brought closer to the sphere, there will be a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap13/thumbs-ed1ch18ap13-00002.png When the balloon is brought closer to the sphere, there will be a redistribution of charges. What is this phenomenon called? (a) electrostatic repulsion(b) conduction(c) polarization(d) none of the above https://seo-videos.collegephysicsanswers.com/ch18/ap13/ed1ch18ap13.mp4 49 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-will-be-charge-y-ie-part-sphere-furthest-balloon-positive-negative-zero-it What will be the charge at Y (i.e., the part of the sphere furthest… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap14/thumbs-ed1ch18ap14-00002.png What will be the charge at Y (i.e., the part of the sphere furthest from the balloon)? (a) positive(b) negative(c) zero(d) It can be positive or negative depending on the material. https://seo-videos.collegephysicsanswers.com/ch18/ap14/ed1ch18ap14.mp4 51 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-balloon-brought-closer-sphere-there-will-be-redistribution-charges-what-0 When the balloon is brought closer to the sphere, there will be a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap15/thumbs-ed1ch18ap15-00002.png When the balloon is brought closer to the sphere, there will be a redistribution of charges. What will be the net charge on the sphere?(a) positive(b) negative(c) zero(d) It can be positive or negative depending on the material. https://seo-videos.collegephysicsanswers.com/ch18/ap15/ed1ch18ap15.mp4 48 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-balloon-brought-closer-sphere-there-will-be-redistribution-charges-if When the balloon is brought closer to the sphere, there will be a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap17/thumbs-ed1ch18ap17-00002.png When the balloon is brought closer to the sphere, there will be a redistribution of charges. If the balloon is moved away after grounding, what will be the net charge on the sphere? (a) positive(b) negative(c) zero(d) It can be positive or negative depending on the material. https://seo-videos.collegephysicsanswers.com/ch18/ap17/ed1ch18ap17.mp4 184 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/positively-charged-rod-used-charge-sphere-induction-which-following-true-sphere A positively charged rod is used to charge a sphere by induction.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap18/thumbs-ed1ch18ap18-00002.png A positively charged rod is used to charge a sphere by induction. Which of the following is true? (a) The sphere must be a conductor.(b) The sphere must be an insulator.(c) The sphere can be a conductor or insulator but must be connected to ground.(d) The sphere can be a conductor or insulator but must be already charged. https://seo-videos.collegephysicsanswers.com/ch18/ap18/ed1ch18ap18.mp4 68 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-experiments-are-performed-using-positively-charged-glass-rods-and-neutral Two experiments are performed using positively charged glass rods and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap20/thumbs-ed1ch18ap20-00002.png Two experiments are performed using positively charged glass rods and neutral electroscopes. In the first experiment the rod is brought in contact with the electroscope. In the second experiment the rod is only brought close to the electroscope but not in contact. However, while the rod is close, the electroscope is momentarily grounded and then the rod is removed. In both experiments the needles of the electroscopes deflect, which indicates the presence of charges. (a) What is the charging method in each of the two experiments?(b) What is the net charge on the electroscope in the first experiment? Explain how the electroscope obtains that charge.(c) Is the net charge on the electroscope in the second experiment different from that of the first experiment? Explain why. https://seo-videos.collegephysicsanswers.com/ch18/ap20/ed1ch18ap20.mp4 219 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-field-due-positively-charged-spherical-conductor-shown-abovwhere-will An electric field due to a positively charged spherical conductor is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap21/thumbs-ed1ch18ap21-00002.png An electric field due to a positively charged spherical conductor is shown abovWhere will the electric field be weakest? (a) Point A(b) Point B(c) Point C(d) Same at all points https://seo-videos.collegephysicsanswers.com/ch18/ap21/ed1ch18ap21.mp4 22 4 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-electric-field-experienced-due-positively-charged-small-spherical Suppose that the electric field experienced due to a positively… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap23/thumbs-ed1ch18ap23-00002.png Suppose that the electric field experienced due to a positively charged small spherical conductor at a certain distance is E. What will be the percentage change in electric field experienced at thrice the distance if the charge on the conductor is doubled? https://seo-videos.collegephysicsanswers.com/ch18/ap23/ed1ch18ap23.mp4 128 4 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/questions-25-27-suppose-electrostatics-force-between-two-charges-f-what-will-be For questions 25–27, suppose that the electrostatics force between… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap25/thumbs-ed1ch18ap25-00002.png For questions 25–27, suppose that the electrostatics force between two charges is F. What will be the force if the distance between them is halved? (a) 4F(b) 2F(c) F/4(d) F/2 https://seo-videos.collegephysicsanswers.com/ch18/ap25/ed1ch18ap25.mp4 66 8 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-force-exerted-electron-56-times-10-17-n-directed-east-find-magnitude Suppose that the force exerted on an electron is 5.6 x 10^{−17} N ,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap37/thumbs-ed1ch18ap37-00002.png Suppose that the force exerted on an electron is 5.6 x 10^{−17} N , directed to the east. (a) Find the magnitude of the electric field that exerts the force.(b) What will be the direction of the electric field?(c) If the electron is replaced by a proton, what will be the magnitude of force exerted?(d) What will be the direction of force on the proton? https://seo-videos.collegephysicsanswers.com/ch18/ap37/ed1ch18ap37.mp4 72 6 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1865-electric-dipole-2q-and-2q-two-charges-shown-figure-below-third Figure 18.65 An electric dipole (with +2q and –2q as the two charges)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap38/thumbs-ed1ch18ap38-00002.png Figure 18.65 An electric dipole (with +2q and –2q as the two charges) is shown in the figure below. A third charge, −q is placed equidistant from the dipole charges. What will be the direction of the net force on the third charge? (a) \rightarrow(b) \leftarrow(c) \downarrow(d) \uparrow https://seo-videos.collegephysicsanswers.com/ch18/ap38/ed1ch18ap38.mp4 52 4 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/refer-table-13-determine-average-distance-between-earth-and-sun-then-calculate (a) Refer to [Table… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe10/thumbs-ed1ch01pe10-00002.png (a) Refer to [Table 1.3](https://cnx.org/contents/jQSmhtXo@23.1:CQh5rf9m@11/1-2-Physical-Quantities-and-Units#33343) to determine the average distance between the Earth and the Sun. Then calculate the average speed of the Earth in its orbit in kilometers per second. (b) What is this in meters per second? https://seo-videos.collegephysicsanswers.com/ch01/pe10/ed1ch01pe10.mp4 161 572 4.5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/moons-craters-are-remnants-meteorite-collisions-suppose-fairly-large-asteroid The Moon’s craters are remnants of meteorite collisions. Suppose a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe40/thumbs-ed1ch08pe40-00002.png The Moon’s craters are remnants of meteorite collisions. Suppose a fairly large asteroid that has a mass of 5.00 x 10^{12} kg (about a kilometer across) strikes the Moon at a speed of 15.0 km/s. (a) At what speed does the Moon recoil after the perfectly inelastic collision (the mass of the Moon is 7.36 x 10^{22} kg ) ? (b) How much kinetic energy is lost in the collision? Such an event may have been observed by medieval English monks who reported observing a red glow and subsequent haze about the Moon. (c) In October 2009, NASA crashed a rocket into the Moon, and analyzed the plume produced by the impact. (Significant amounts of water were detected.) Answer part (a) and (b) for this real-life experiment. The mass of the rocket was 2000 kg and its speed upon impact was 9000 km/h. How does the plume produced alter these results? https://seo-videos.collegephysicsanswers.com/ch08/pe40/ed1ch08pe40.mp4 233 178 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-positively-charged-object-brought-contact-uncharged-object-b-closed Suppose a positively charged object A is brought in contact with an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap04/thumbs-ed1ch18ap04-00002.png Suppose a positively charged object A is brought in contact with an uncharged object B in a closed system. What type of charge will be left on object B?(a) negative(b) positive(c) neutral(d) cannot be determined https://seo-videos.collegephysicsanswers.com/ch18/ap04/ed1ch18ap04.mp4 48 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-b-figure-259-distance-traveled-b-magnitude-displacement Find the following for path B in Figure 2.59: (a) The distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe02/thumbs-ed1ch02pe02-00002.png Find the following for path B in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish. https://seo-videos.collegephysicsanswers.com/ch02/pe02/ed1ch02pe02.mp4 125 478 5 2019-06-01 yes 2019-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-electrons-have-be-moved-car-battery-containing-720-times-105-j-12-v How many electrons have to be moved by a car battery containing 7.20… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap05/thumbs-ed1ch19ap05-00002.png How many electrons have to be moved by a car battery containing 7.20 x 10^{5} J at 12 V to reduce the energy by 1%? (a) 4.80 x 10^{27}(b) 4.00 x 10^{26}(c) 3.75 x 10^{21}(d) 3.13 x 10^{20} https://seo-videos.collegephysicsanswers.com/ch19/ap05/ed1ch19ap05.mp4 63 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/most-electricity-power-grid-generated-powerful-turbines-spinning-around-why-dont Most of the electricity in the power grid is generated by powerful… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap06/thumbs-ed1ch19ap06-00002.png Most of the electricity in the power grid is generated by powerful turbines spinning around. Why don’t these turbines slow down from the work they do moving electrons? https://seo-videos.collegephysicsanswers.com/ch19/ap06/ed1ch19ap06.mp4 82 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/system-has-200-mc-charges-50-cm-0-and-50-cm-0-and-100-mc-charge-0-70-cm-y A system has 2.00 μC charges at (50 cm, 0) and (−50 cm, 0) and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap11/thumbs-ed1ch19ap11-00002.png A system has 2.00 μC charges at (50 cm, 0) and (−50 cm, 0) and a −1.00 μC charge at (0, 70 cm). As the y-coordinate of the −1.00 μC charge increases, the potential energy \_\_\_. As the y-coordinate of the −1.00 μC charge decreases, the potential energy \_\_\_. (a) increases, increases(b) increases, decreases(c) decreases, increases(d) decreases, decreases https://seo-videos.collegephysicsanswers.com/ch19/ap11/ed1ch19ap11.mp4 119 2 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/classic-millikan-oil-drop-experiment-was-first-obtain-accurate-measurement The classic Millikan oil drop experiment was the first to obtain an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe62/thumbs-ed1ch18pe62-00002.png The classic Millikan oil drop experiment was the first to obtain an accurate measurement of the charge on an electron. In it, oil drops were suspended against the gravitational force by a vertical electric field. (See Figure 18.58.) Given the oil drop to be 1.00 \mu m in radius and have a density of 920 kg/m ^3: (a) Find the weight of the drop. (b) If the drop has a single excess electron, find the electric field strength needed to balance its weight. https://seo-videos.collegephysicsanswers.com/ch18/pe62/ed1ch18pe62.mp4 137 181 5 2020-06-23 yes 2020-06-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/system-three-point-charges-has-100-mc-charge-origin-200-mc-charge-x30-cm-and-0 A system of three point charges has a 1.00 μC charge at the origin, a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap12/thumbs-ed1ch19ap12-00002.png A system of three point charges has a 1.00 μC charge at the origin, a −2.00 μC charge at x=30 cm, and a 3.00 μC charge at x=70 cm. What happens to the total potential energy of this system if the −2.00 μC charge and the 3.00 μC charge trade places? https://seo-videos.collegephysicsanswers.com/ch19/ap12/ed1ch19ap12.mp4 533 4 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/negatively-charged-massive-particle-dropped-above-two-plates-figure-197-space A negatively charged massive particle is dropped from above the two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap17/thumbs-ed1ch19ap17-00002.png A negatively charged massive particle is dropped from above the two plates in Figure 19.7 into the space between them. Which best describes the trajectory it takes? (a) A rightward-curving parabola(b) A leftward-curving parabola(c) A rightward-curving section of a circle(d) A leftward-curving section of a circle https://seo-videos.collegephysicsanswers.com/ch19/ap17/ed1ch19ap17.mp4 448 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-massive-particles-identical-charge-are-launched-uniform-field-between-two Two massive particles with identical charge are launched into the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap18/thumbs-ed1ch19ap18-00002.png Two massive particles with identical charge are launched into the uniform field between two plates from the same launch point with the same velocity. They both impact the positively charged plate, but the second one does so four times as far as the first. What sign is the charge? What physical difference would give them different impact points (quantify as a relative percent)? How does this compare to the gravitational projectile motion case? https://seo-videos.collegephysicsanswers.com/ch19/ap18/ed1ch19ap18.mp4 501 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-parallel-conducting-plates-are-15-cm-apart-each-area-075textrm-m2-left-one Two parallel conducting plates are 15 cm apart, each with an area of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap20/thumbs-ed1ch19ap20-00002.png Two parallel conducting plates are 15 cm apart, each with an area of 0.75 m ^2. The left one has a charge of -0.225 C placed on it, while the right has a charge of 0.225 C. What is the magnitude and direction of the electric field between the two? https://seo-videos.collegephysicsanswers.com/ch19/ap20/ed1ch19ap20.mp4 154 6 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-y-grounded-while-balloon-still-close-x-which-following-will-be-true-electrons If Y is grounded while the balloon is still close to X, which of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap16/thumbs-ed1ch18ap16-00002.png If Y is grounded while the balloon is still close to X, which of the following will be true? (a) Electrons will flow from the sphere to the ground(b) Electrons will flow from the ground to the sphere(c) Protons will flow from the sphere to the ground(d) Protons will flow from the ground to the sphere. https://seo-videos.collegephysicsanswers.com/ch18/ap16/ed1ch18ap16.mp4 55 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-d-figure-259-distance-traveled-b-magnitude-displacement Find the following for path D in Figure 2.59: (a) The distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe04/thumbs-ed1ch02pe04-00002.png Find the following for path D in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish. https://seo-videos.collegephysicsanswers.com/ch02/pe04/ed1ch02pe04.mp4 152 544 4.9 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-would-figure-1915-be-different-two-positive-charges-replacing-two-negative How would Figure 19.15 be different with two positive charges… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap25/thumbs-ed1ch19ap25-00002.png How would Figure 19.15 be different with two positive charges replacing the two negative charges? (a) The equipotential lines would have positive values.(b) It would actually resemble Figure 19.14.(c) no change(d) not enough information https://seo-videos.collegephysicsanswers.com/ch19/ap25/ed1ch19ap25.mp4 61 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/isolines-electric-potential-get-closer-together-electric-field-gets-stronger As isolines of electric potential get closer together, the electric… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap27/thumbs-ed1ch19ap27-00002.png As isolines of electric potential get closer together, the electric field gets stronger. What shape would a hill have as the isolines of gravitational potential get closer together? (a) constant slope(b) steeper slope(c) shallower slope(d) a U-shape https://seo-videos.collegephysicsanswers.com/ch19/ap27/ed1ch19ap27.mp4 42 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-parallel-plate-capacitors-are-otherwise-identical-except-second-one-has Two parallel plate capacitors are otherwise identical, except the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap31/thumbs-ed1ch19ap31-00002.png Two parallel plate capacitors are otherwise identical, except the second one has twice the distance between the plates of the first. If placed in otherwise identical circuits, how much charge will the second plate have on it compared to the first? (a) four times as much(b) twice as much(c) the same(d) half as much https://seo-videos.collegephysicsanswers.com/ch19/ap31/ed1ch19ap31.mp4 127 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-simple-circuit-consisting-battery-and-capacitor-adjustable-distance-between In a very simple circuit consisting of a battery and a capacitor with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap32/thumbs-ed1ch19ap32-00002.png In a very simple circuit consisting of a battery and a capacitor with an adjustable distance between the plates, how does the voltage vary as the distance is altered? https://seo-videos.collegephysicsanswers.com/ch19/ap32/ed1ch19ap32.mp4 86 2021-03-20 yes 2021-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/parallel-plate-capacitor-adjustable-size-square-plates-placed-circuit-how-does A parallel plate capacitor with adjustable-size square plates is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap33/thumbs-ed1ch19ap33-00002.png A parallel plate capacitor with adjustable-size square plates is placed in a circuit. How does the charge on the capacitor change as the length of the sides of the plates is increased? (a) it grows proportional to length ^2(b) it grows proportional to length(c) it shrinks proportional to length(d) it shrinks proportional to length ^2 https://seo-videos.collegephysicsanswers.com/ch19/ap33/ed1ch19ap33.mp4 65 2 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-electrostatic-force-between-two-charges-1-c-each-separated-distance-05-m (a) What is the electrostatic force between two charges of 1 C each,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap29/thumbs-ed1ch18ap29-00002.png (a) What is the electrostatic force between two charges of 1 C each, separated by a distance of 0.5 m?(b) How will this force change if the distance is increased to 1 m? https://seo-videos.collegephysicsanswers.com/ch18/ap29/ed1ch18ap29.mp4 71 4 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-parallel-plate-capacitor-no-dielectric-material-it-was-attached-battery Consider a parallel plate capacitor with no dielectric material. It… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap38/thumbs-ed1ch19ap38-00002.png Consider a parallel plate capacitor with no dielectric material. It was attached to a battery with a fixed voltage to charge up, but now the battery has been disconnected. What happens to the energy of the system and the dielectric material when a dielectric is inserted into the capacitor? https://seo-videos.collegephysicsanswers.com/ch19/ap38/ed1ch19ap38.mp4 143 2 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-parallel-plate-capacitor-metal-plates-each-square-shape-100-m-side-1 Consider a parallel plate capacitor with metal plates, each of square… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap42/thumbs-ed1ch19ap42-00002.png Consider a parallel plate capacitor with metal plates, each of square shape of 1.00 m on a side, separated by 1.00 mm. What is the internal energy stored in this system if the charge on the capacitor is 30.0 μC? https://seo-videos.collegephysicsanswers.com/ch19/ap42/ed1ch19ap42.mp4 102 4 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-capacitance-needed-store-300-mutextrmc-charge-voltage-120-v What capacitance is needed to store 3.00 \mu C of charge at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe51/thumbs-ed1ch19pe51-00002.png What capacitance is needed to store 3.00 \mu C of charge at a voltage of 120 V? https://seo-videos.collegephysicsanswers.com/ch19/pe51/ed1ch19pe51.mp4 22 56 4.3 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-students-calculate-charge-flowing-through-circuit-first-student-concludes Two students calculate the charge flowing through a circuit. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap04/thumbs-ed1ch20ap04-00002.png Two students calculate the charge flowing through a circuit. The first student concludes that 300 C of charge flows in 1 minute. The second student concludes that 3.125 x 10^{19} electrons flow per second. If the current measured in the circuit is 5 A, which of the two students (if any) have performed the calculations correctly? https://seo-videos.collegephysicsanswers.com/ch20/ap04/ed1ch20ap04.mp4 84 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-voltage-across-fixed-resistance-doubled-what-happens-current-it-doubles-it If the voltage across a fixed resistance is doubled, what happens to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap05/thumbs-ed1ch20ap05-00002.png If the voltage across a fixed resistance is doubled, what happens to the current? (a) It doubles.(b) It halves.(c) It stays the same.(d) The current cannot be determine https://seo-videos.collegephysicsanswers.com/ch20/ap05/ed1ch20ap05.mp4 50 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/resistances-two-wires-having-same-lengths-and-cross-section-areas-are-3-o-and-11 The resistances of two wires having the same lengths and cross… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap11/thumbs-ed1ch20ap11-00002.png The resistances of two wires having the same lengths and cross section areas are 3 Ω and 11 Ω. If the resistivity of the 3 Ω wire is 2.65 × 10−8 Ω·m, find the resistivity of the 11 Ω wire. https://seo-videos.collegephysicsanswers.com/ch20/ap11/ed1ch20ap11.mp4 88 2 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lengths-and-diameters-three-wires-are-given-below-if-they-all-have-same The lengths and diameters of three wires are given below. If they all… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap12/thumbs-ed1ch20ap12-00002.png The lengths and diameters of three wires are given below. If they all have the same resistance, find the ratio of their resistivities. https://seo-videos.collegephysicsanswers.com/ch20/ap12/ed1ch20ap12.mp4 360 4 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-resistance-wire-2-o-if-wire-stretched-three-times-its-length-what-will Suppose the resistance of a wire is 2 Ω. If the wire is stretched to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap13/thumbs-ed1ch20ap13-00002.png Suppose the resistance of a wire is 2 Ω. If the wire is stretched to three times its length, what will be its resistance? Assume that the volume does not change. https://seo-videos.collegephysicsanswers.com/ch20/ap13/ed1ch20ap13.mp4 175 2 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-garbage-truck-120times-104textrm-kg-and-initially-moving-250-ms-just What is the speed of a garbage truck that is 1.20 x 10^{4} kg and is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe42/thumbs-ed1ch08pe42-00002.png What is the speed of a garbage truck that is 1.20 x 10^{4} kg and is initially moving at 25.0 m/s just after it hits and adheres to a trash can that is 80.0 kg and is initially at rest? https://seo-videos.collegephysicsanswers.com/ch08/pe42/ed1ch08pe42.mp4 85 180 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-will-be-ratio-resistance-120-w-220-v-lamp-100-w-110-v-lamp What will be the ratio of the resistance of a 120 W, 220 V lamp to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap15/thumbs-ed1ch20ap15-00002.png What will be the ratio of the resistance of a 120 W, 220 V lamp to that of a 100 W, 110 V lamp? https://seo-videos.collegephysicsanswers.com/ch20/ap15/ed1ch20ap15.mp4 60 4 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/total-600-c-charge-passes-through-flashlight-0500-h-what-average-current A total of 600 C of charge passes through a flashlight in 0.500 h.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe02/thumbs-ed1ch20pe02-00002.png A total of 600 C of charge passes through a flashlight in 0.500 h. What is the average current? https://seo-videos.collegephysicsanswers.com/ch20/pe02/ed1ch20pe02.mp4 31 104 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/redo-example-206-taking-account-thermal-expansion-tungsten-filament-you-may (a) Redo Example 20.6 taking into account the thermal expansion of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe38/thumbs-ed1ch20pe38-00002.png (a) Redo Example 20.6 taking into account the thermal expansion of the tungsten filament. You may assume a thermal expansion coefficient of 12 x 10^{-6} /C °. (b) By what percentage does your answer differ from that in the example?[Example 20.6](https://openstax.org/books/college-physics/pages/20-3-resistance-and-resistivity#fs-id1889050): Although caution must be used in applying \rho = \rho\_o(1 + \alpha \Delta T) and R = R\_o(1+\alpha \Delta T) for temperature changes greater than 100° C , for tungsten the equations work reasonably well for very large temperature changes. What, then, is the resistance of the tungsten filament in the previous example if its temperature is increased from room temperature ( 20° C ) to a typical operating temperature of 2850° C ?[Example 20.5](https://openstax.org/books/college-physics/pages/20-3-resistance-and-resistivity#fs-id2056718): A car headlight filament is made of tungsten and has a cold resistance of 0.350 \Omega . If the filament is a cylinder 4.00 cm long (it may be coiled to save space), what is its diameter? **Solution: D = 9.0 x 10^{-5} m ** https://seo-videos.collegephysicsanswers.com/ch20/pe38/ed1ch20pe38.mp4 402 34 3.5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/alkaline-batteries-have-advantage-putting-out-constant-voltage-until-very-nearly Alkaline batteries have the advantage of putting out constant voltage… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe54/thumbs-ed1ch20pe54-00002.png Alkaline batteries have the advantage of putting out constant voltage until very nearly the end of their life. How long will an alkaline battery rated at 1.00 A \cdot h and 1.58 V keep a 1.00-W flashlight bulb burning? https://seo-videos.collegephysicsanswers.com/ch20/pe54/ed1ch20pe54.mp4 88 52 3.7 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-time-needed-surgical-cauterizer-raise-temperature-100-g-tissue How much time is needed for a surgical cauterizer to raise the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe62/thumbs-ed1ch20pe62-00002.png How much time is needed for a surgical cauterizer to raise the temperature of 1.00 g of tissue from 37.0° C to 100° C and then boil away 0.500 g of water, if it puts out 2.00 mA at 15.0 kV? Ignore heat transfer to the surroundings. https://seo-videos.collegephysicsanswers.com/ch20/pe62/ed1ch20pe62.mp4 236 49 5 2020-08-18 yes 2020-08-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-needed-transmit-100times-102textrm-mw-power-100-kv-b-find (a) What current is needed to transmit 1.00 x 10^{2} MW of power at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe70/thumbs-ed1ch20pe70-00002.png (a) What current is needed to transmit 1.00 x 10^{2} MW of power at 10.0 kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch20/pe70/ed1ch20pe70.mp4 281 32 5 2020-08-19 yes 2020-08-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/north-american-tourist-takes-his-250-w-120-v-ac-razor-europe-finds-special A North American tourist takes his 25.0-W, 120-V AC razor to Europe,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe76/thumbs-ed1ch20pe76-00002.png A North American tourist takes his 25.0-W, 120-V AC razor to Europe, finds a special adapter, and plugs it into 240 V AC. Assuming constant resistance, what power does the razor consume as it is ruined? https://seo-videos.collegephysicsanswers.com/ch20/pe76/ed1ch20pe76.mp4 96 47 3.3 2020-08-19 yes 2020-08-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-voltage-involved-144-kw-short-circuit-through-0100-omega-resitance What voltage is involved in a 1.44 kW short circuit through a 0.100… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe86/thumbs-ed1ch20pe86-00002.png What voltage is involved in a 1.44 kW short circuit through a 0.100 \Omega resitance? https://seo-videos.collegephysicsanswers.com/ch20/pe86/ed1ch20pe86.mp4 45 8 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-resistors-resistances-r-and-2r-are-connected-voltage-source-shown-figure-if Two resistors, with resistances R and 2R are connected to a voltage… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap04/thumbs-ed1ch21ap04-00002.png Two resistors, with resistances R and 2R are connected to a voltage source as shown in this figure. If the power dissipated in R is 10 W, what is the power dissipated in 2R? (a) 1 W(b) 2.5 W(c) 5 W(d) 10 W https://seo-videos.collegephysicsanswers.com/ch21/ap04/ed1ch21ap04.mp4 66 4 2021-04-01 yes 2021-04-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-two-children-push-horizontally-exactly-opposite-directions-third-child Suppose two children push horizontally, but in exactly opposite… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe09/thumbs-ed1ch04pe09-00002.png Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts a force of 75.0 N, the second a force of 90.0 N, friction is 12.0 N, and the mass of the third child plus wagon is 23.0 kg. (a) What is the system of interest if the acceleration of the child in the wagon is to be calculated? (b) Draw a free-body diagram, including all forces acting on the system. (c) Calculate the acceleration. (d) What would the acceleration be if friction were 15.0 N? https://seo-videos.collegephysicsanswers.com/ch04/pe09/ed1ch04pe09.mp4 233 1386 3.6 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electrostatic-paint-sprayer-has-0200-m-diameter-metal-sphere-potential-250-kv An electrostatic paint sprayer has a 0.200-m-diameter metal sphere at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe32/thumbs-ed1ch19pe32-00002.png An electrostatic paint sprayer has a 0.200-m-diameter metal sphere at a potential of 25.0 kV that repels paint droplets onto a grounded object. (a) What charge is on the sphere? (b) What charge must a 0.100-mg drop of paint have to arrive at the object with a speed of 10.0 m/s? https://seo-videos.collegephysicsanswers.com/ch19/pe32/ed1ch19pe32.mp4 156 139 4.3 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-was-set-circuit-diagram-shown-figure-2161-assume-r1-10-omega-r2-r3-5 An experiment was set up with the circuit diagram shown in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap08/thumbs-ed1ch21ap08-00002.png An experiment was set up with the circuit diagram shown in Figure 21.61. Assume R\_1 = 10 \Omega, R\_2 = R\_3 = 5 \Omega, r = 0 \Omega, and E = 6 V . (a) One of the steps to examine the set-up is to test points with the same potential. Which of the following points can be tested? (a) Points b, c and d.(b) Points d, e and f.(c) Points f, h and j.(d) Points a, h and i.(b) At which three points should the currents be measured so that Kirchhoff’s junction rule can be directly confirmed? (a) Points b, c and d.(b) Points d, e and f.(c) Points f, h and j.(d) Points a, h and i.(c) If the current in the branch with the voltage source is upward and currents in the other two branches are downward, i.e. Ia = Ii + Ic, identify which of the following can be true? Select two answers. (a) li = Ij - If(b) Ie = Ih - Ii(c) Ic = Ij - Ia(d) Id = Ih - Ij(d) The measurements reveal that the current through R1 is 0.5 A and R3 is 0.6 A. Based on your knowledge of Kirchoff’s laws, confirm which of the following statements are true. (a) The measured current for R1 is correct but for R3 is incorrect.(b) The measured current for R3 is correct but for R1 is incorrect.(c) Both the measured currents are correct.(d) Both the measured currents are incorrect.(e) The graph shown in the following Figure 21.62 is the energy dissipated at R1 as a function of time. Which of the following among Figures 21.63 and Figure 21.65 shows the graph for energy dissipated at R2 as a function of time? https://seo-videos.collegephysicsanswers.com/ch21/ap08/ed1ch21ap08.mp4 534 4 2021-04-01 yes 2021-04-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/question-consider-circuit-shown-following-figure-assuming-none-three-currents-i1 For this question, consider the circuit shown in the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap09/thumbs-ed1ch21ap09-00002.png For this question, consider the circuit shown in the following figure. (a) Assuming that none of the three currents (I\_1, I\_2, I\_3) are equal to zero, which of the following statements is false? (a) I\_3 = I\_1 + I\_2(b) I\_2 = I\_3 - I\_1(c) The current through R\_3 is equal to the current through R\_5(d) The current through R\_1 is equal to the current through R\_5(b) Which of the following statements is true? (a) \xi\_1 + \xi\_2 + I\_1R\_1 - I\_2R\_2 + I\_1r\_1 - I\_2r\_2 + I\_1R\_5 = 0(b) -\xi\_1 + \xi\_2 + I\_1R\_1 - I\_2R\_2 + I\_1r\_1 - I\_2r\_2 - I\_1R\_5 = 0(c) \xi\_1 - \xi\_2 - I\_1R\_1 + I\_2R\_2 - I\_1r\_1 + I\_2r\_2 - I\_1R\_5 = 0(d) \xi\_1 + \xi\_2 - I\_1R\_1 + I\_2R\_2 - I\_1r\_1 + I\_2r\_2 + I\_1R\_5 = 0(c) If I\_1 = 5 A and I\_3 = -2 A , which of the following statements is false? (a) The current through R\_1 will flow from _a_ to _b_ and well be equal to 5 A.(b) The current through R\_3 will flow from _a_ to _j_ and will be equal to 2 A.(c) The current through R\_5 will flow from _d_ to _e_ and will be equal to 5 A.(d) None of the above.(d) If I\_1 = 5 A and I\_3 = -2 A , I\_2 will be equal to (a) 3 A(b) -3 A(c) 7 A(d) -7 A https://seo-videos.collegephysicsanswers.com/ch21/ap09/ed1ch21ap09.mp4 397 4 2018-05-09 yes 2018-05-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2168-experiment-circuit-set-three-ammeters-are-used-record-currents-three Figure 21.68 In an experiment this circuit is set up. Three ammeters… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap10/thumbs-ed1ch21ap10-00002.png Figure 21.68 In an experiment this circuit is set up. Three ammeters are used to record the currents in the three vertical branches (with R\_1, R\_2, and E). The readings of the ammeters in the resistor branches (i.e. currents in R\_1 and R\_2) are 2 A and 3 A respectively. (a) Find the equation obtained by applying Kirchhoff’s loop rule in the loop involving R\_1 and R\_2.(b) What will be the reading of the third ammeter (i.e. the branch with E)? If E were replaced by 3E, how would this reading change?(c) If the original circuit is modified by adding another voltage source (as shown in the following circuit in Figure 21.69), find the readings of the three ammeters. https://seo-videos.collegephysicsanswers.com/ch21/ap10/ed1ch21ap10.mp4 465 2 2021-04-01 yes 2021-04-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2170-circuit-assume-currents-through-r1-r2-and-r3-are-i1-i2-and-i3 Figure 21.70 In this circuit, assume the currents through R\_1, R\_2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap11/thumbs-ed1ch21ap11-00002.png Figure 21.70 In this circuit, assume the currents through R\_1, R\_2 and R\_3 are I\_1, I\_2 and I\_3 respectively and all are flowing in the clockwise direction.(a) Find the equation obtained by applying Kirchhoff’s junction rule at point A.(b) Find the equations obtained by applying Kirchhoff’s loop rule in the upper and lower loops.(c) Assume R\_1 = R\_2 = 6 \Omega, R\_3 = 12 \Omega, r\_1 = r\_2 = 0 \Omega, \xi\_1 = 6 V and \xi\_2 = 4 V . Calculate I\_1, I\_2 and I\_3.(d) For the situation in which \xi\_2 is replaced by a closed switch, repeat parts (a) and (b). Using the values for R\_1, R\_2, R\_3, r\_1 and \xi\_1 from part (c) calculate the currents through the three resistors.(e) For the circuit in part (d) calculate the output power of the voltage source and across all the resistors. Examine if energy is conserved in the circuit.(f) A student implemented the circuit of part (d) in the lab and measured the current though one of the resistors as 0.19 A. According to the results calculated in part (d) identify the resistor(s). Justify any difference in measured and calculated value. https://seo-videos.collegephysicsanswers.com/ch21/ap11/ed1ch21ap11.mp4 856 4 2018-05-09 yes 2018-05-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/battery-connected-resistor-and-uncharged-capacitor-switch-circuit-closed-t-0-s A battery is connected to a resistor and an uncharged capacitor. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap12/thumbs-ed1ch21ap12-00002.png A battery is connected to a resistor and an uncharged capacitor. The switch for the circuit is closed at t = 0 s. (a) While the capacitor is being charged, which of the following is true? (a) Current through and voltage across the resistor increase.(b) Current through and voltage across the resistor decrease.(c) Current through and voltage across the resistor first increase and then decrease.(d) Current through and voltage across the resistor first decrease and then increase.(b) When the capacitor is fully charged, which of the following is NOT zero? (a) Current in the resistor.(b) Voltage across the resistor.(c) Current in the capacitor.(d) None of the above. https://seo-videos.collegephysicsanswers.com/ch21/ap12/ed1ch21ap12.mp4 104 6 2021-04-01 yes 2021-04-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-how-magnetic-domains-unmagnetized-iron-rod-will-respond-presence-strong Describe how the magnetic domains in an unmagnetized iron rod will… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap03/thumbs-ed1ch22ap03-00002.png Describe how the magnetic domains in an unmagnetized iron rod will respond to the presence of a strong external magnetic field. (a) The domains will split into monopoles.(b) The domains will tend to align with the external field.(c) The domains will tend to orient themselves perpendicular to the external field.(d) The domains will tend to align so as to cancel out the external field. https://seo-videos.collegephysicsanswers.com/ch22/ap03/ed1ch22ap03.mp4 15 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-what-steps-must-be-undertaken-order-convert-unmagnetized-iron-rod Describe what steps must be undertaken in order to convert an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap04/thumbs-ed1ch22ap04-00002.png Describe what steps must be undertaken in order to convert an unmagnetized iron rod into a permanently magnetized state. As part of your answer, explain what a magnetic domain is and how it responds to the steps described. https://seo-videos.collegephysicsanswers.com/ch22/ap04/ed1ch22ap04.mp4 160 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experimentalist-fires-beam-electrons-creating-visible-path-air-can-be-measured An experimentalist fires a beam of electrons, creating a visible path… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap11/thumbs-ed1ch22ap11-00002.png An experimentalist fires a beam of electrons, creating a visible path in the air that can be measured. The beam is fired along a direction parallel to a current-carrying wire, and the electrons travel in a circular path in response to the wire’s magnetic field. Assuming the mass and charge of the electrons is known, what quantities would you need to measure in order to deduce the current in the wire? (a) the radius of the circular path(b) the average distance between the electrons and the wire(c) the velocity of the electrons(d) two of the above(e) all of the above https://seo-videos.collegephysicsanswers.com/ch22/ap11/ed1ch22ap11.mp4 195 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electrons-starting-rest-are-accelerated-through-potential-difference-240-v-and Electrons starting from rest are accelerated through a potential… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap12/thumbs-ed1ch22ap12-00002.png Electrons starting from rest are accelerated through a potential difference of 240 V and fired into a region of uniform 3.5-mT magnetic field generated by a large solenoid. The electrons are initially moving in the +x-direction upon entering the field, and the field is directed into the page. Determine (a) the radius of the circle in which the electrons will move in this uniform magnetic field and (b) the initial direction of the magnetic force the electrons feel upon entering the uniform field of the solenoid. https://seo-videos.collegephysicsanswers.com/ch22/ap12/ed1ch22ap12.mp4 420 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wire-along-y-axis-carries-current-y-direction-what-direction-magnetic-field A wire along the y-axis carries current in the +y-direction. In what… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap13/thumbs-ed1ch22ap13-00002.png A wire along the y-axis carries current in the +y-direction. In what direction is the magnetic field at a point on the +x-axis near the wire? (a) away from the wire(b) vertically upward(c) into the page(d) out of the page https://seo-videos.collegephysicsanswers.com/ch22/ap13/ed1ch22ap13.mp4 34 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/imagine-xy-coordinate-plane-plane-page-wire-along-z-axis-carries-current-z Imagine the xy coordinate plane is the plane of the page. A wire… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap14/thumbs-ed1ch22ap14-00002.png Imagine the xy coordinate plane is the plane of the page. A wire along the z-axis carries current in the +z-direction (out of the page, or ⊙ ). Draw a diagram of the magnetic field in the vicinity of this wire indicating the direction of the field. Also, describe how the strength of the magnetic field varies according to the distance from the z-axis. https://seo-videos.collegephysicsanswers.com/ch22/ap14/ed1ch22ap14.mp4 172 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-parallel-wires-carry-equal-currents-same-direction-and-are-separated-small Two parallel wires carry equal currents in the same direction and are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap15/thumbs-ed1ch22ap15-00002.png Two parallel wires carry equal currents in the same direction and are separated by a small distance. What is the direction of the magnetic force exerted by the two wires on each other? (a) No force since the wires are parallel.(b) No force since the currents are in the same direction.(c) The force is attractive.(d) The force is repulsive. https://seo-videos.collegephysicsanswers.com/ch22/ap15/ed1ch22ap15.mp4 79 2018-05-24 yes 2018-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-coils-are-placed-close-together-physics-lab-demonstrate-faradays-law Two coils are placed close together in a physics lab to demonstrate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe55/thumbs-ed1ch23pe55-00002.png Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A current of 5.00 A in one is switched off in 1.00 ms, inducing a 9.00 V emf in the other. What is their mutual inductance? https://seo-videos.collegephysicsanswers.com/ch23/pe55/ed1ch23pe55.mp4 61 123 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-want-characteristic-rl-time-constant-100-s-and-you-have-500-omega If you want a characteristic RL time constant of 1.00 s, and you have… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe69/thumbs-ed1ch23pe69-00002.png If you want a characteristic RL time constant of 1.00 s, and you have a 500 \Omega resistor, what value of self- inductance is needed? https://seo-videos.collegephysicsanswers.com/ch23/pe69/ed1ch23pe69.mp4 20 34 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/table-83-below-calculate-center-mass-velocity-system-both-and-after-collision For the table 8.3 below, calculate the center-of-mass velocity of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap24/thumbs-ed1ch08ap24-00002.png For the table 8.3 below, calculate the center-of-mass velocity of the system both before and after the collision, then calculate the center-of-mass momentum of the system both before and after the collision. From this, determine the change in the momentum of the system as a result of the collision. https://seo-videos.collegephysicsanswers.com/ch08/ap24/ed1ch08ap24.mp4 236 2021-02-05 yes 2021-02-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/weight-astronaut-plus-his-space-suit-moon-only-250-n-how-much-do-they-weigh The weight of an astronaut plus his space suit on the Moon is only… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe13/thumbs-ed1ch04pe13-00002.png The weight of an astronaut plus his space suit on the Moon is only 250 N. How much do they weigh on Earth? What is the mass on the Moon? On Earth? https://seo-videos.collegephysicsanswers.com/ch04/pe13/ed1ch04pe13.mp4 135 1288 3.9 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-outcome-if-you-attempt-produce-longitudinal-electromagnetic-wave Describe the outcome if you attempt to produce a longitudinal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap02/thumbs-ed1ch24ap02-00002.png Describe the outcome if you attempt to produce a longitudinal electromagnetic wave. https://seo-videos.collegephysicsanswers.com/ch24/ap02/ed1ch24ap02.mp4 52 2 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/youre-moon-skipping-around-and-your-radio-breaks-what-would-be-best-way You’re on the moon, skipping around, and your radio breaks. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap04/thumbs-ed1ch24ap04-00002.png You’re on the moon, skipping around, and your radio breaks. What would be the best way to communicate this problem to your friend, who is also skipping around on the moon: yelling or flashing a light? Why? https://seo-videos.collegephysicsanswers.com/ch24/ap04/ed1ch24ap04.mp4 72 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-waveform-figure-245d-if-t-30-times-10-9-s-and-e-50-times-105-nc-which Given the waveform in Figure 24.5(d), if T = 3.0 x 10^{-9} s and E =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap05/thumbs-ed1ch24ap05-00002.png Given the waveform in Figure 24.5(d), if T = 3.0 x 10^{-9} s and E = 5.0 x 10^5 N/C , which of the following is the correct equation for the wave at the antenna? (a) \left( 5.0 x 10^5 N/C \right) \sin\left( 2\pi(3.0 x 10^{-9} s )t \right)(b) \left( 5.0 x 10^5 N/C \right) \sin \left( \dfrac{2\pi t}{3.0 x 10^{-9} s } \right)(c) \left( 5.0 x 10^5 N/C \right) \cos\left( 2\pi(3.0 x 10^{-9} s )t \right)(d) \left( 5.0 x 10^5 N/C \right) \cos \left( \dfrac{2\pi t}{3.0 x 10^{-9} s } \right) https://seo-videos.collegephysicsanswers.com/ch24/ap05/ed1ch24ap05.mp4 95 2 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heinrich-hertzs-spark-gap-experiment-figure-244-how-will-induced-sparks-loop-2 In Heinrich Hertz’s spark gap experiment (Figure 24.4), how will the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap07/thumbs-ed1ch24ap07-00002.png In Heinrich Hertz’s spark gap experiment (Figure 24.4), how will the induced sparks in Loop 2 compare to those created in Loop 1? (a) Stronger(b) Weaker(c) Need to know the tuner settings to tell(d) Weaker, but how much depends on the tuner settings. https://seo-videos.collegephysicsanswers.com/ch24/ap07/ed1ch24ap07.mp4 92 2 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-how-our-vision-would-be-different-if-we-could-see-energy-what-we-define Describe how our vision would be different if we could see energy in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap10/thumbs-ed1ch24ap10-00002.png Describe how our vision would be different if we could see energy in what we define as the radio spectrum. https://seo-videos.collegephysicsanswers.com/ch24/ap10/ed1ch24ap10.mp4 173 2 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-objects-equal-mass-collide-object-initially-moving-x-direction-speed-12-ms Two objects of equal mass collide. Object A is initially moving in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap33/thumbs-ed1ch08ap33-00002.png Two objects of equal mass collide. Object A is initially moving in the +x-direction with a speed of 12 m/s, and object B is initially at rest. After the collision, object A is at rest, and object B is moving away with some unknown velocity. There are no external forces acting on the system of two masses. What statement can we make about this collision? (a) Both momentum and kinetic energy are conserved.(b) Momentum is conserved, but kinetic energy is not conserved.(c) Neither momentum nor kinetic energy is conserved.(d) More information is needed in order to determine which is conserved. https://seo-videos.collegephysicsanswers.com/ch08/ap33/ed1ch08ap33.mp4 136 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/old-microwave-oven-outputs-only-half-electric-field-it-used-how-much-longer-does An old microwave oven outputs only half the electric field it used… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap11/thumbs-ed1ch24ap11-00002.png An old microwave oven outputs only half the electric field it used to. How much longer does it take to cook things in this microwave oven? (a) Four times as long(b) Twice as long(c) Half the time(d) One fourth the time https://seo-videos.collegephysicsanswers.com/ch24/ap11/ed1ch24ap11.mp4 143 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-how-momentum-and-kinetic-energy-system-two-colliding-objects-changes Explain how the momentum and kinetic energy of a system of two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap36/thumbs-ed1ch08ap36-00002.png Explain how the momentum and kinetic energy of a system of two colliding objects changes as a result of (a) an elastic collision and (b) an inelastic collision. https://seo-videos.collegephysicsanswers.com/ch08/ap36/ed1ch08ap36.mp4 70 2 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radio-station-utilizes-frequencies-between-commercial-am-and-fm-what-frequency A radio station utilizes frequencies between commercial AM and FM.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe08/thumbs-ed1ch24pe08-00002.png A radio station utilizes frequencies between commercial AM and FM. What is the frequency of a 11.12-m-wavelength channel? https://seo-videos.collegephysicsanswers.com/ch24/pe08/ed1ch24pe08.mp4 35 89 5 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-200-mm-focal-length-telephoto-lens-being-used-photograph-mountains-100 Suppose a 200 mm focal length telephoto lens is being used to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe50/thumbs-ed1ch25pe50-00002.png Suppose a 200 mm focal length telephoto lens is being used to photograph mountains 10.0 km away. (a) Where is the image? (b) What is the height of the image of a 1000 m high cliff on one of the mountains? https://seo-videos.collegephysicsanswers.com/ch25/pe50/ed1ch25pe50.mp4 167 140 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-telephoto-cameras-use-mirror-rather-lens-what-radius-curvature-mirror Some telephoto cameras use a mirror rather than a lens. What radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe54/thumbs-ed1ch25pe54-00002.png Some telephoto cameras use a mirror rather than a lens. What radius of curvature mirror is needed to replace a 800 mm focal length telephoto lens? https://seo-videos.collegephysicsanswers.com/ch25/pe54/ed1ch25pe54.mp4 33 36 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lasik-surgery-coherent-uv-light-193-nm-focused-corneal-tissue-explain-importance In LASIK surgery, a coherent UV light of 193 nm is focused on the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap04/thumbs-ed1ch26ap04-00002.png In LASIK surgery, a coherent UV light of 193 nm is focused on the corneal tissue. (a) Explain the importance of using light that is all the same wavelength.(b) Explain why UV light is more effective than infrared light at evaporating the corneal tissue. https://seo-videos.collegephysicsanswers.com/ch26/ap04/ed1ch26ap04.mp4 172 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-initially-moving-velocity-12-ms-x-direction-mass-b-twice-massive-mass-and Mass A is initially moving with a velocity of 12 m/s in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap46/thumbs-ed1ch08ap46-00002.png Mass A is initially moving with a velocity of 12 m/s in the +x-direction. Mass B is twice as massive as mass A and is initially at rest. After the two objects collide, the two masses move together as one with a velocity of 4 m/s in the +x-direction. Is momentum conserved in this collision? https://seo-videos.collegephysicsanswers.com/ch08/ap46/ed1ch08ap46.mp4 87 4 2021-02-09 yes 2021-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wire-along-y-axis-carries-current-y-direction-experimenter-would-arrange-second A wire along the y-axis carries current in the +y-direction. An… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap16/thumbs-ed1ch22ap16-00002.png A wire along the y-axis carries current in the +y-direction. An experimenter would like to arrange a second wire parallel to the first wire and crossing the x-axis at the coordinate x = 2.0 m so that the total magnetic field at the coordinate x = 1.0 m is zero. In what direction must the current flow in the second wire, assuming it is equal in magnitude to the current in the first wire? Explain. https://seo-videos.collegephysicsanswers.com/ch22/ap16/ed1ch22ap16.mp4 99 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-advantage-using-concave-mirror-construction-telescope-telescope Which of the following is an advantage to using a concave mirror in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap09/thumbs-ed1ch26ap09-00002.png Which of the following is an advantage to using a concave mirror in the construction of a telescope? (a) The telescope can gather more light than a telescope using lenses.(b) The telescope does not suffer from chromatic aberration.(c) The telescope can provide greater magnification than a telescope using lenses. (a) I and III only(b) II only(c) I and II only(d) I, II, and III https://seo-videos.collegephysicsanswers.com/ch26/ap09/ed1ch26ap09.mp4 151 2 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-certain-persons-visual-acuity-such-he-can-see-objects-clearly-form-image Suppose a certain person’s visual acuity is such that he can see… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe04/thumbs-ed1ch26pe04-00002.png Suppose a certain person’s visual acuity is such that he can see objects clearly that form an image 4.00 \mu m high on his retina. What is the maximum distance at which he can read the 75.0 cm high letters on the side of an airplane? https://seo-videos.collegephysicsanswers.com/ch26/pe04/ed1ch26pe04.mp4 106 151 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-light-passed-through-two-polarizing-filters-image-below-shows-first In an experiment, light is passed through two polarizing filters. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap18/thumbs-ed1ch27ap18-00002.png In an experiment, light is passed through two polarizing filters. The image below shows the first filter and axis of polarization. The intensity of the resulting light (after the first filter) is recorded as I. Three configurations (at different angles) are set up for the second filter, and the intensity of light is recorded for each configuration. The results are shown in the table below: Complete the table by calculating \theta_1, \theta_2, and \theta_3. https://seo-videos.collegephysicsanswers.com/ch27/ap18/ed1ch27ap18.mp4 152 8 2021-04-22 yes 2021-04-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-spacing-between-structures-feather-acts-reflection-grating-given-they What is the spacing between structures in a feather that acts as a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe30/thumbs-ed1ch27pe30-00002.png What is the spacing between structures in a feather that acts as a reflection grating, given that they produce a first- order maximum for 525-nm light at a 30.0° angle? https://seo-videos.collegephysicsanswers.com/ch27/pe30/ed1ch27pe30.mp4 72 28 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-index-refraction-material-which-wavelength-light-0671-times-its-value What is the index of refraction of a material for which the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe03/thumbs-ed1ch27pe03-00002.png What is the index of refraction of a material for which the wavelength of light is 0.671 times its value in a vacuum? Identify the likely substance. https://seo-videos.collegephysicsanswers.com/ch27/pe03/ed1ch27pe03.mp4 109 191 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-least-two-improvements-you-could-make-radar-set-make-it-more-sensitive Describe at least two improvements you could make to a radar set to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap12/thumbs-ed1ch24ap12-00002.png Describe at least two improvements you could make to a radar set to make it more sensitive (able to detect things at longer ranges). Explain why these would work. https://seo-videos.collegephysicsanswers.com/ch24/ap12/ed1ch24ap12.mp4 90 2 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/red-light-wavelength-700-nm-falls-double-slit-separated-400-nm-what-angle-first Red light of wavelength of 700 nm falls on a double slit separated by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe40/thumbs-ed1ch27pe40-00002.png Red light of wavelength of 700 nm falls on a double slit separated by 400 nm. (a) At what angle is the first-order maximum in the diffraction pattern? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch27/pe40/ed1ch27pe40.mp4 117 14 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-maximum-number-lines-centimeter-diffraction-grating-can-have-and-produce (a) Find the maximum number of lines per centimeter a diffraction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe36/thumbs-ed1ch27pe36-00002.png (a) Find the maximum number of lines per centimeter a diffraction grating can have and produce a maximum for the smallest wavelength of visible light. (b) Would such a grating be useful for ultraviolet spectra? (c) For infrared spectra? https://seo-videos.collegephysicsanswers.com/ch27/pe36/ed1ch27pe36.mp4 283 23 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-angle-between-first-minima-two-sodium-vapor-lines-which-have-wavelengths (a) Find the angle between the first minima for the two sodium vapor… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe51/thumbs-ed1ch27pe51-00002.png (a) Find the angle between the first minima for the two sodium vapor lines, which have wavelengths of 589.1 and 589.6 nm, when they fall upon a single slit of width 2.00 \mu m . (b) What is the distance between these minima if the diffraction pattern falls on a screen 1.00 m from the slit? (c) Discuss the ease or difficulty of measuring such a distance. https://seo-videos.collegephysicsanswers.com/ch27/pe51/ed1ch27pe51.mp4 262 71 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-net-external-force-exerted-1100-kg-artillery-shell-fired-battleship-if What net external force is exerted on a 1100-kg artillery shell fired… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe15/thumbs-ed1ch04pe15-00002.png What net external force is exerted on a 1100-kg artillery shell fired from a battleship if the shell is accelerated at 2.40 x 10^4 m/s ^2? What is the magnitude of the force exerted on the ship by the artillery shell? https://seo-videos.collegephysicsanswers.com/ch04/pe15/ed1ch04pe15.mp4 147 921 4.7 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/limit-eyes-acuity-actually-related-diffraction-pupil-what-angle-between-two-just The limit to the eye’s acuity is actually related to diffraction by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe62/thumbs-ed1ch27pe62-00002.png The limit to the eye’s acuity is actually related to diffraction by the pupil. (a) What is the angle between two just-resolvable points of light for a 3.00-mm-diameter pupil, assuming an average wavelength of 550 nm? (b) Take your result to be the practical limit for the eye. What is the greatest possible distance a car can be from you if you can resolve its two headlights, given they are 1.30 m apart? (c) What is the distance between two just-resolvable points held at an arm’s length (0.800 m) from your eye? (d) How does your answer to (c) compare to details you normally observe in everyday circumstances? https://seo-videos.collegephysicsanswers.com/ch27/pe62/ed1ch27pe62.mp4 250 139 5 2021-04-16 yes 2021-04-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/double-slit-produces-diffraction-pattern-combination-single-and-double-slit A double slit produces a diffraction pattern that is a combination of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe54/thumbs-ed1ch27pe54-00002.png A double slit produces a diffraction pattern that is a combination of single and double slit interference. Find the ratio of the width of the slits to the separation between them, if the first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern. (This will greatly reduce the intensity of the fifth maximum.) https://seo-videos.collegephysicsanswers.com/ch27/pe54/ed1ch27pe54.mp4 146 44 3 2021-04-15 yes 2021-04-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-angular-resolution-found-hubble-telescope-example-275-what-smallest Assuming the angular resolution found for the Hubble Telescope in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe58/thumbs-ed1ch27pe58-00002.png Assuming the angular resolution found for the Hubble Telescope in [Example 27.5](https://openstax.org/books/college-physics/pages/27-6-limits-of-resolution-the-rayleigh-criterion#fs-id1169736614590), what is the smallest detail that could be observed on the Moon? https://seo-videos.collegephysicsanswers.com/ch27/pe58/ed1ch27pe58.mp4 133 76 3 2021-04-16 yes 2021-04-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/soap-bubble-100-nm-thick-and-illuminated-white-light-incident-perpendicular-its A soap bubble is 100 nm thick and illuminated by white light incident… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe70/thumbs-ed1ch27pe70-00002.png A soap bubble is 100 nm thick and illuminated by white light incident perpendicular to its surface. What wavelength and color of visible light is most constructively reflected, assuming the same index of refraction as water? https://seo-videos.collegephysicsanswers.com/ch27/pe70/ed1ch27pe70.mp4 375 148 5 2021-04-17 yes 2021-04-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/oil-slick-water-120-nm-thick-and-illuminated-white-light-incident-perpendicular An oil slick on water is 120 nm thick and illuminated by white light… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe71/thumbs-ed1ch27pe71-00002.png An oil slick on water is 120 nm thick and illuminated by white light incident perpendicular to its surface. What color does the oil appear (what is the most constructively reflected wavelength), given its index of refraction is 1.40? https://seo-videos.collegephysicsanswers.com/ch27/pe71/ed1ch27pe71.mp4 364 175 4.3 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-minimum-thickness-soap-bubble-appears-red-when-illuminated-white-light Find the minimum thickness of a soap bubble that appears red when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe73/thumbs-ed1ch27pe73-00002.png Find the minimum thickness of a soap bubble that appears red when illuminated by white light perpendicular to its surface. Take the wavelength to be 680 nm, and assume the same index of refraction as water. https://seo-videos.collegephysicsanswers.com/ch27/pe73/ed1ch27pe73.mp4 335 126 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/film-oil-water-will-appear-dark-when-it-very-thin-because-path-length-difference A film of oil on water will appear dark when it is very thin, because… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe78/thumbs-ed1ch27pe78-00002.png A film of oil on water will appear dark when it is very thin, because the path length difference becomes small compared with the wavelength of light and there is a phase shift at the top surface. If it becomes dark when the path length difference is less than one-fourth the wavelength, what is the thickest the oil can be and appear dark at all visible wavelengths? Oil has an index of refraction of 1.40. https://seo-videos.collegephysicsanswers.com/ch27/pe78/ed1ch27pe78.mp4 191 45 5 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-have-completely-polarized-light-intensity-150textrm-wm2-what-will-its If you have completely polarized light of intensity 150 W/m ^2 , what… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe86/thumbs-ed1ch27pe86-00002.png If you have completely polarized light of intensity 150 W/m ^2 , what will its intensity be after passing through a polarizing filter with its axis at an 89.0° angle to the light’s polarization direction? https://seo-videos.collegephysicsanswers.com/ch27/pe86/ed1ch27pe86.mp4 41 119 3.5 2021-04-19 yes 2021-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/relativistic-energy-particle-terms-momentum-given-e-sqrtp2c2-m02c4-e-sqrtp2c2 The relativistic energy of a particle in terms of momentum is given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/ap06/thumbs-ed1ch28ap06-00002.png The relativistic energy of a particle in terms of momentum is given by: (a) E = \sqrt{p^2c^2 + m\_0^2c^4}(b) E = \sqrt{p^2c^2 + m\_0^4c^4}(c) E = \sqrt{p^2c^2 + m\_0^2c^2}(d) E = \sqrt{p^2c^4 + m\_0^2c^2} https://seo-videos.collegephysicsanswers.com/ch28/ap06/ed1ch28ap06.mp4 49 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-value-gamma-following-situation-astronaut-measures-length-her-spaceship-be (a) Find the value of \gamma for the following situation. An… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe18/thumbs-ed1ch28pe18-00002.png (a) Find the value of \gamma for the following situation. An astronaut measures the length of her spaceship to be 25.0 m, while an Earth-bound observer measures it to be 100 m. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch28/pe18/ed1ch28pe18.mp4 122 38 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-momentum-100-times-109-kg-asteroid-heading-towards-earth-300-kms-b-find (a) Find the momentum of a 1.00 x 10^9 kg asteroid heading towards… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe37/thumbs-ed1ch28pe37-00002.png (a) Find the momentum of a 1.00 x 10^9 kg asteroid heading towards the Earth at 30.0 km/s . (b) Find the ratio of this momentum to the classical momentum. (Hint: Use the approximation that \gamma = 1 + \dfrac{1}{2} \dfrac{v^2}{c^2} at low velocities.) https://seo-videos.collegephysicsanswers.com/ch28/pe37/ed1ch28pe37.mp4 111 67 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-momentum-2000-kg-satellite-orbiting-400-kms-b-find-ratio-momentum-classical (a) What is the momentum of a 2000 kg satellite orbiting at 4.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe38/thumbs-ed1ch28pe38-00002.png (a) What is the momentum of a 2000 kg satellite orbiting at 4.00 km/s? (b) Find the ratio of this momentum to the classical momentum. (Hint: Use the approximation that \gamma = 1 + \dfrac{1}{2}\dfrac{v^2}{c^2} at low velocities.) https://seo-videos.collegephysicsanswers.com/ch28/pe38/ed1ch28pe38.mp4 95 40 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/positron-antimatter-version-electron-having-exactly-same-mass-when-positron-and A positron is an antimatter version of the electron, having exactly… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe56/thumbs-ed1ch28pe56-00002.png A positron is an antimatter version of the electron, having exactly the same mass. When a positron and an electron meet, they annihilate, converting all of their mass into energy. (a) Find the energy released, assuming negligible kinetic energy before the annihilation. (b) If this energy is given to a proton in the form of kinetic energy, what is its velocity? (c) If this energy is given to another electron in the form of kinetic energy, what is its velocity? https://seo-videos.collegephysicsanswers.com/ch28/pe56/ed1ch28pe56.mp4 235 64 3 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/metal-exposed-beam-light-wavelength-equal-or-shorter-specific-wavelength-emits A metal exposed to a beam of light with a wavelength equal to or… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap03/thumbs-ed1ch29ap03-00002.png A metal exposed to a beam of light with a wavelength equal to or shorter than a specific wavelength emits electrons. What property of light, as described in the quantum explanation of blackbody radiation, accounts for this photoelectric process? (a) The energy of light increases as its speed increases.(b) The energy of light increases as its intensity increases.(c) The energy of light increases as its frequency increases.(d) The energy of light increases as its wavelength increases. https://seo-videos.collegephysicsanswers.com/ch29/ap03/ed1ch29ap03.mp4 109 2 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-50-g-completely-converted-energy-what-energy-will-be-obtained-when-such A mass of 50 g is completely converted into energy. What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/ap04/thumbs-ed1ch28ap04-00002.png A mass of 50 g is completely converted into energy. What is the energy that will be obtained when such a conversion takes place? https://seo-videos.collegephysicsanswers.com/ch28/ap04/ed1ch28ap04.mp4 28 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/microwave-oven-produces-electromagnetic-radiation-radio-portion-spectrum-these A microwave oven produces electromagnetic radiation in the radio… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap05/thumbs-ed1ch29ap05-00002.png A microwave oven produces electromagnetic radiation in the radio portion of the spectrum. These microwave photons are absorbed by water molecules, resulting in an increase in the molecules’ rotational energies. This added energy is transferred by heat to the surrounding food, which as a result becomes hot very quickly. If the energy absorbed by a water molecule is 1.0 x 10^{-5} eV , what is the corresponding wavelength of the microwave photons?(a) 1.22 GHz(b) 2.45 GHz(c) 4.90 GHz(d) 9.80 GHz https://seo-videos.collegephysicsanswers.com/ch29/ap05/ed1ch29ap05.mp4 39 2 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ground-state-certain-type-atom-has-energy-eo-what-wavelength-photon-enough The ground state of a certain type of atom has energy of -E\_o. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap11/thumbs-ed1ch29ap11-00002.png The ground state of a certain type of atom has energy of -E\_o. What is the wavelength of a photon with enough energy to ionize the atom when it is in the ground state, so that the ejected electron has kinetic energy equal to 2E\_o? (a) \lambda = \dfrac{hc}{3E\_o}(b) \lambda = \dfrac{hc}{2E\_o}(c) \lambda = \dfrac{hc}{E\_o}(d) \lambda = \dfrac{2hc}{E\_o} https://seo-videos.collegephysicsanswers.com/ch29/ap11/ed1ch29ap11.mp4 61 4 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/davisson-germer-type-experiment-crystal-parallel-plane-separation-d-91times-10 In a Davisson-Germer type of experiment, a crystal with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap15/thumbs-ed1ch29ap15-00002.png In a Davisson-Germer type of experiment, a crystal with a parallel-plane separation, d, of 9.1 x 10^{-2} nm produces constructive interference with an electron beam at an angle of \theta = 50°. Which of the following is the maximum de Broglie wavelength for these electrons? (a) 0.07 nm (b) 0.09 nm (c) 0.14 nm (d) 0.21 nm https://seo-videos.collegephysicsanswers.com/ch29/ap15/ed1ch29ap15.mp4 167 2 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-frequency-hertz-100-mev-gamma-ray-photon Calculate the frequency in hertz of a 1.00-MeV \gamma-ray photon. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe22/thumbs-ed1ch29pe22-00002.png Calculate the frequency in hertz of a 1.00-MeV \gamma-ray photon. https://seo-videos.collegephysicsanswers.com/ch29/pe22/ed1ch29pe22.mp4 59 64 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-momentum-photon-having-wavelength-250textrm-mutextrmm-b-find-velocity (a) Calculate the momentum of a photon having a wavelength of 2.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe42/thumbs-ed1ch29pe42-00002.png (a) Calculate the momentum of a photon having a wavelength of 2.50 \mu m . (b) Find the velocity of an electron having the same momentum. (c) What is the kinetic energy of the electron, and how does it compare with that of the photon? https://seo-videos.collegephysicsanswers.com/ch29/pe42/ed1ch29pe42.mp4 121 111 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/take-ratio-relativistic-rest-energy-e-gamma-mc2-relativistic-momentum-p-gamma-mu Take a ratio of relativistic rest energy, E = \gamma mc^2, to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe46/thumbs-ed1ch29pe46-00002.png Take a ratio of relativistic rest energy, E = \gamma mc^2, to relativistic momentum, p = \gamma mu, and show that in the limit that mass approaches zero, you find \dfrac{E}{p} = c. https://seo-videos.collegephysicsanswers.com/ch29/pe46/ed1ch29pe46.mp4 135 12 5 2021-05-03 yes 2021-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/laser-power-output-200-mw-wavelength-400-nm-projected-calcium-metal-how-many-1 A laser with a power output of 2.00 mW at a wavelength of 400 nm is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe82/thumbs-ed1ch29pe82-00002.png A laser with a power output of 2.00 mW at a wavelength of 400 nm is projected onto calcium metal. (a) How many electrons per second are ejected? (b) What power is carried away by the electrons, given that the binding energy is 2.71 eV? (c) Calculate the current of ejected electrons. (d) If the photoelectric material is electrically insulated and acts like a 2.00-pF capacitor, how long will current flow before the capacitor voltage stops it? https://seo-videos.collegephysicsanswers.com/ch29/pe82/ed1ch29pe82.mp4 477 14 2021-05-05 yes 2021-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/100-fm-photon-has-wavelength-short-enough-detect-some-information-about-nuclei A 1.00-fm photon has a wavelength short enough to detect some… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe84/thumbs-ed1ch29pe84-00002.png A 1.00-fm photon has a wavelength short enough to detect some information about nuclei. (a) What is the photon momentum? (b) What is its energy in joules and MeV? (c) What is the (relativistic) velocity of an electron with the same momentum? (d) Calculate the electron’s kinetic energy. https://seo-videos.collegephysicsanswers.com/ch29/pe84/ed1ch29pe84.mp4 358 6 2021-05-05 yes 2021-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rock-illuminated-high-energy-ultraviolet-light-causes-rock-emit-visible-light A rock is illuminated with high energy ultraviolet light. This causes… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap08/thumbs-ed1ch30ap08-00002.png A rock is illuminated with high energy ultraviolet light. This causes the rock to emit visible light. Explain what is happening in the atomic substructure of the rock that causes this effect, which we call fluorescence. https://seo-videos.collegephysicsanswers.com/ch30/ap08/ed1ch30ap08.mp4 76 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-best-way-explaining-why-leaves-given-tree-are-green-molecules Which of the following is the best way of explaining why the leaves… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap09/thumbs-ed1ch30ap09-00002.png Which of the following is the best way of explaining why the leaves on a given tree are green? (a) The molecules in the leaves absorb all visible light but strongly reflect green light.(b) The molecules in the leaves absorb green light and reflect other visible light.(c) The molecules are excited by external light sources, and their electrons emit green light when they are de-excited to a lower energy level within the molecules.(d) The molecules glow with a characteristic green energy in order to balance the absorption of energy due to light and heat from their surroundings. https://seo-videos.collegephysicsanswers.com/ch30/ap09/ed1ch30ap09.mp4 21 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-excited-ground-state-atom-energy-level-1-highly-excited-state-energy An electron is excited from the ground state of an atom (energy level… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap11/thumbs-ed1ch30ap11-00002.png An electron is excited from the ground state of an atom (energy level 1) into a highly excited state (energy level 8). Which of the following electron behaviors represents the fluorescence effect by the atom? (a) The electron remains at level 8 for a very long time, then transitions up to level 9.(b) The electron transitions directly down from level 8 to level 1.(c) The electron transitions from level 8 to level 1 and then returns quickly to level 8.(d) The electron transitions from level 8 to level 6, then to level 5, then to level 3, then to level 1. https://seo-videos.collegephysicsanswers.com/ch30/ap11/ed1ch30ap11.mp4 61 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-process-fluorescence-terms-emission-photons-electron-transitions Describe the process of fluorescence in terms of the emission of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap12/thumbs-ed1ch30ap12-00002.png Describe the process of fluorescence in terms of the emission of photons as electron transitions between energy states. Specifically, explain how this process differs from ordinary atomic emission. https://seo-videos.collegephysicsanswers.com/ch30/ap12/ed1ch30ap12.mp4 115 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-3066-figure-shows-graphical-representations-wave-functions-two-particles Figure 30.66 This figure shows graphical representations of the wave… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap13/thumbs-ed1ch30ap13-00002.png Figure 30.66 This figure shows graphical representations of the wave functions of two particles, X and Y, that are moving in the positive x-direction. The maximum amplitude of particle X’s wave function is A\_0. Which particle has a greater probability of being located at position x\_o at this instant, and why? (a) Particle X, because the wave function of particle X spends more time passing through x\_o than the wave function of particle Y.(b) Particle X, because the wave function of particle X has a longer wavelength than the wave function of particle Y.(c) Particle Y, because the wave function of particle Y is narrower than the wave function of particle X.(d) Particle Y, because the wave function of particle Y has a greater amplitude near x\_o than the wave function of particle X. https://seo-videos.collegephysicsanswers.com/ch30/ap13/ed1ch30ap13.mp4 42 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-qualitatively-the-difference-in-the-wave-functions-of-particle-X-particle-Y In Figure 30.66, explain qualitatively the difference in the wave… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap14/thumbs-ed1ch30ap14-00002.png In Figure 30.66, explain qualitatively the difference in the wave functions of particle X and particle Y. Which particle is more likely to be found at a larger distance from the coordinate x0 and why? Which particle is more likely be found exactly at x0 and why? https://seo-videos.collegephysicsanswers.com/ch30/ap14/ed1ch30ap14.mp4 123 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-de-broglie-wavelength-lambda-which-following-orbital-circumferences For an electron with a de Broglie wavelength \lambda, which of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap15/thumbs-ed1ch30ap15-00002.png For an electron with a de Broglie wavelength \lambda, which of the following orbital circumferences within the atom would be disallowed? Select two answers. (a) 0.5\lambda(b) \lambda(c) 1.5\lambda(d) 2\lambda https://seo-videos.collegephysicsanswers.com/ch30/ap15/ed1ch30ap15.mp4 24 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/helicopter-blade-spins-exactly-100-revolutions-minute-its-tip-500-m-center A helicopter blade spins at exactly 100 revolutions per minute. Its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe06/thumbs-ed1ch02pe06-00002.png A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation. (a) Calculate the average speed of the blade tip in the helicopter's frame of reference. (b) What is its average velocity over one revolution? https://seo-videos.collegephysicsanswers.com/ch02/pe06/ed1ch02pe06.mp4 101 1484 4.4 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nucleus-observed-emit-g-ray-frequency-63times-1019textrm-hz-what-must-happen A nucleus is observed to emit a γ ray with a frequency of 6.3 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap01/thumbs-ed1ch31ap01-00002.png A nucleus is observed to emit a γ ray with a frequency of 6.3 x 10^{19} Hz . What must happen to the nucleus as a consequence? (a) The nucleus must gain 0.26 MeV.(b) The nucleus must also emit an α particle of energy 0.26 MeV in the opposite direction.(c) The nucleus must lose 0.26 MeV.(d) The nucleus must also emit a β particle of energy 0.26 MeV in the opposite direction. https://seo-videos.collegephysicsanswers.com/ch31/ap01/ed1ch31ap01.mp4 41 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/uranium-nucleus-emits-particle-assuming-charge-conserved-resulting-nucleus-must A uranium nucleus emits an α particle. Assuming charge is conserved,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap02/thumbs-ed1ch31ap02-00002.png A uranium nucleus emits an α particle. Assuming charge is conserved, the resulting nucleus must be (a) thorium(b) plutonium(c) radium(d) curium https://seo-videos.collegephysicsanswers.com/ch31/ap02/ed1ch31ap02.mp4 37 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nucleus-excited-state-undergoes-gamma-decay-losing-133-mev-when-emitting-gamma A nucleus in an excited state undergoes \gamma decay, losing 1.33 MeV… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap04/thumbs-ed1ch31ap04-00002.png A nucleus in an excited state undergoes \gamma decay, losing 1.33 MeV when emitting a \gamma ray. In order to conserve energy in the reaction, what frequency must the \gamma ray have? https://seo-videos.collegephysicsanswers.com/ch31/ap04/ed1ch31ap04.mp4 56 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/24195textrmam-commonly-used-smoke-detectors-because-its-alpha-decay-process ^{241}_{95} Am is commonly used in smoke detectors because its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap05/thumbs-ed1ch31ap05-00002.png ^{241}_{95} Am is commonly used in smoke detectors because its \alpha decay process provides a useful tool for detecting the presence of smoke particles. When ^{241}_{95} Am undergoes \alpha decay, what is the resulting nucleus? If ^{241}_{95} Am were to undergo \beta decay, what would be the resulting nucleus? Explain each answer. https://seo-videos.collegephysicsanswers.com/ch31/ap05/ed1ch31ap05.mp4 83 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/146textrmc-nucleus-undergoes-decay-process-and-resulting-nucleus-147textrmn-what A ^{}{14}\_6 C nucleus undergoes a decay process, and the resulting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap06/thumbs-ed1ch31ap06-00002.png A ^{}{14}\_6 C nucleus undergoes a decay process, and the resulting nucleus is {}^{14}\_7 N . What is the value of the charge released by the original nucleus? (a) +1(b) 0(c) -1(d) -2 https://seo-videos.collegephysicsanswers.com/ch31/ap06/ed1ch31ap06.mp4 57 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-why-overall-charge-nucleus-increased-1-during-beta-decay-process Explain why the overall charge of the nucleus is increased by +1… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap07/thumbs-ed1ch31ap07-00002.png Explain why the overall charge of the nucleus is increased by +1 during the \beta decay process. https://seo-videos.collegephysicsanswers.com/ch31/ap07/ed1ch31ap07.mp4 22 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/identify-missing-particle-based-upon-conservation-principles-147textrmn Identify the missing particle based upon conservation principles:… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap08/thumbs-ed1ch31ap08-00002.png Identify the missing particle based upon conservation principles: {}^{14}\_7 N + {}^4\_2 He \rightarrow X +{}^{17}\_8 O (a) {}^2\_1 H (b) {}^1\_1 H (c) {}^{12}\_6 C (d) {}^{14}\_6 C (e) {}^8\_4 Be https://seo-videos.collegephysicsanswers.com/ch31/ap08/ed1ch31ap08.mp4 84 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-po-decays-product-pb-half-life-decay-process-178-ms-if-initial-sample When Po decays, the product is Pb. The half-life of this decay… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap11/thumbs-ed1ch31ap11-00002.png When Po decays, the product is Pb. The half-life of this decay process is 1.78 ms. If the initial sample contains 3.4 x 10^{17} parent nuclei, how many are remaining after 35 ms have elapsed? What kind of decay process is this (alpha, beta, or gamma)? https://seo-videos.collegephysicsanswers.com/ch31/ap11/ed1ch31ap11.mp4 78 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/binding-energy-measure-how-much-work-must-be-done-against-nuclear-forces-order Binding energy is a measure of how much work must be done against… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap12/thumbs-ed1ch31ap12-00002.png Binding energy is a measure of how much work must be done against nuclear forces in order to disassemble a nucleus into its constituent parts. For example, the amount of energy in order to disassemble He into 2 protons and 2 neutrons requires 28.3 MeV of work to be done on the nuclear particles. Describe the force that makes it so difficult to pull a nucleus apart. Would it be accurate to say that the electric force plays a role in the forces within a nucleus? Explain why or why not. https://seo-videos.collegephysicsanswers.com/ch31/ap12/ed1ch31ap12.mp4 81 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/object-unknown-mass-provided-student-without-using-scale-design-experimental An object of unknown mass is provided to a student. Without using a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap08/thumbs-ed1ch09ap08-00002.png An object of unknown mass is provided to a student. Without using a scale, design an experimental procedure detailing how the magnitude of this mass could be experimentally found. Your explanation must include the concept of torque and all steps should be provided in an orderly sequence. You may include a labeled diagram of your setup to help in your description. Include enough detail so that another student could carry out your procedure. https://seo-videos.collegephysicsanswers.com/ch09/ap08/ed1ch09ap08.mp4 88 2 2021-02-11 yes 2021-02-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-if-any-constraints-does-value-ml-1-place-other-quantum-numbers-electron What, if any, constraints does a value of m_l = 1 place on the other… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe38/thumbs-ed1ch30pe38-00002.png What, if any, constraints does a value of m_l = 1 place on the other quantum numbers for an electron in an atom? https://seo-videos.collegephysicsanswers.com/ch30/pe38/ed1ch30pe38.mp4 86 36 4 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/5000-ci-60textrmco-source-used-cancer-therapy-considered-too-weak-be-useful-when A 5000-Ci {}^{60} Co source used for cancer therapy is considered… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe56/thumbs-ed1ch31pe56-00002.png A 5000-Ci {}^{60} Co source used for cancer therapy is considered too weak to be useful when its activity falls to 3500 Ci. How long after its manufacture does this happen? https://seo-videos.collegephysicsanswers.com/ch31/pe56/ed1ch31pe56.mp4 113 111 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/manufacturer-smoke-alarm-decides-smallest-current-alpha-radiation-he-can-detect The manufacturer of a smoke alarm decides that the smallest current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe68/thumbs-ed1ch31pe68-00002.png The manufacturer of a smoke alarm decides that the smallest current of \alpha radiation he can detect is 1.00 \mu A . (a) Find the activity in curies of an \alpha emitter that produces a 1.00 \mu A current of \alpha particles. (b) What is unreasonable about this result? (c) What assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch31/pe68/ed1ch31pe68.mp4 111 4 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/patient-receives-rad-radiation-part-her-treatment-and-absorbs-e-j-energy-rbe A patient receives _A_ rad of radiation as part of her treatment and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap01/thumbs-ed1ch32ap01-00002.png A patient receives _A_ rad of radiation as part of her treatment and absorbs _E_ J of energy. The RBE of the radiation particles is _R_. If the RBE is increased to _1.5R_, what will be the energy absorbed by the patient? (a) 1.5E J (b) E J (c) 0.75 E J (d) 0.67E J https://seo-videos.collegephysicsanswers.com/ch32/ap01/ed1ch32ap01.mp4 105 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-90-kg-person-exposed-50-mrem-alpha-particles-rbe-16-calculate-dosage-rad If a 90-kg person is exposed to 50 mrem of alpha particles (with RBE… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap02/thumbs-ed1ch32ap02-00002.png If a 90-kg person is exposed to 50 mrem of alpha particles (with RBE of 16), calculate the dosage (in rad) received by the person. What is the amount of energy absorbed by the person? https://seo-videos.collegephysicsanswers.com/ch32/ap02/ed1ch32ap02.mp4 94 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-3236-shows-graph-potential-energy-between-two-light-nuclei-function Figure 32.36 shows a graph of the potential energy between two light… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap03/thumbs-ed1ch32ap03-00002.png Figure 32.36 shows a graph of the potential energy between two light nuclei as a function of the distance between them. Fusion can occur between the nuclei if the distance is (a) large so that kinetic energy is low.(b) large so that potential energy is low.(c) small so that nuclear attractive force can overcome Coulomb’s repulsion.(d) small so that nuclear attractive force cannot overcome Coulomb’s repulsion. https://seo-videos.collegephysicsanswers.com/ch32/ap03/ed1ch32ap03.mp4 52 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nuclear-fusion-reaction-2-g-hydrogen-converted-1985-g-helium-what-energy In a nuclear fusion reaction, 2 g of hydrogen is converted into 1.985… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap04/thumbs-ed1ch32ap04-00002.png In a nuclear fusion reaction, 2 g of hydrogen is converted into 1.985 g of helium. What is the energy released? (a) 4.5 x 10^{3} J (b) 4.5 x 10^{6} J (c) 1.35 x 10^{12} J (d) 1.35 x 10^{15} J https://seo-videos.collegephysicsanswers.com/ch32/ap04/ed1ch32ap04.mp4 37 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-deuterium-and-tritium-nuclei-fuse-produce-helium-what-else-produced When deuterium and tritium nuclei fuse to produce helium, what else… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap05/thumbs-ed1ch32ap05-00002.png When deuterium and tritium nuclei fuse to produce helium, what else is produced? (a) positron(b) proton(c) \alpha-particle- neutron https://seo-videos.collegephysicsanswers.com/ch32/ap05/ed1ch32ap05.mp4 25 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-two-deuterium-nuclei-are-fused-produce-helium-write-equation-fusion Suppose two deuterium nuclei are fused to produce helium. (a) Write… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap06/thumbs-ed1ch32ap06-00002.png Suppose two deuterium nuclei are fused to produce helium. (a) Write the equation for the fusion reaction.(b) Calculate the difference between the masses of reactants and products.(c) Using the result calculated in (b), find the energy produced in the fusion reaction. Assume that the mass of deuterium is 2.014102 u, the mass of helium is 4.002603 u and 1 u = 1.66 × 10-27 kg. https://seo-videos.collegephysicsanswers.com/ch32/ap06/ed1ch32ap06.mp4 126 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-about-nuclear-fission-true-no-new-elements-can-be Which of the following statements about nuclear fission is true? (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap07/thumbs-ed1ch32ap07-00002.png Which of the following statements about nuclear fission is true? (a) No new elements can be produced in a fission reaction.(b) Energy released in fission reactions is generally less than that from fusion reactions.(c) In a fission reaction, two light nuclei are combined into a heavier one.(d) Fission reactions can be explained on the basis of the conservation of mass-energy. https://seo-videos.collegephysicsanswers.com/ch32/ap07/ed1ch32ap07.mp4 113 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-energy-obtained-when-10-g-mass-converted-energy-efficiency-70-393times What is the energy obtained when 10 g of mass is converted to energy… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap08/thumbs-ed1ch32ap08-00002.png What is the energy obtained when 10 g of mass is converted to energy with an efficiency of 70%? (a) 3.93 x 10^{27} MeV (b) 3.93 x 10^{30} MeV (c) 5.23 x 10^{27} MeV (d) 5.23 x 10^{30} MeV https://seo-videos.collegephysicsanswers.com/ch32/ap08/ed1ch32ap08.mp4 73 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/beam-168-mev-nitrogen-nuclei-used-cancer-therapy-if-beam-directed-0200-kg-tumor A beam of 168-MeV nitrogen nuclei is used for cancer therapy. If this… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe16/thumbs-ed1ch32pe16-00002.png A beam of 168-MeV nitrogen nuclei is used for cancer therapy. If this beam is directed onto a 0.200-kg tumor and gives it a 2.00-Sv dose, how many nitrogen nuclei were stopped? (Use an RBE of 20 for heavy ions.) https://seo-videos.collegephysicsanswers.com/ch32/pe16/ed1ch32pe16.mp4 131 50 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/energy-produced-fusion-100-kg-mixture-deuterium-and-tritium-was-found-example The energy produced by the fusion of a 1.00-kg mixture of deuterium… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe30/thumbs-ed1ch32pe30-00002.png The energy produced by the fusion of a 1.00-kg mixture of deuterium and tritium was found in Example [Calculating Energy and Power from Fusion](https://openstax.org/books/college-physics/pages/32-5-fusion#fs-id1395304). Approximately how many kilograms would be required to supply the annual energy use in the United States? https://seo-videos.collegephysicsanswers.com/ch32/pe30/ed1ch32pe30.mp4 76 24 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-amount-energy-given-4textrmhe-nucleus-and-gamma-ray-reaction-n-3textrmhe Find the amount of energy given to the {}^4 He nucleus and to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe40/thumbs-ed1ch32pe40-00002.png Find the amount of energy given to the {}^4 He nucleus and to the \gamma ray in the reaction n + {}^3 He \rightarrow {}^4 He + \gamma , using the conservation of momentum principle and taking the reactants to be initially at rest. This should confirm the contention that most of the energy goes to the \gamma ray. https://seo-videos.collegephysicsanswers.com/ch32/pe40/ed1ch32pe40.mp4 440 8 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/naturally-occurring-radioactive-isotope-232textrmth-does-not-make-good-fission The naturally occurring radioactive isotope {}^{232} Th does not… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe48/thumbs-ed1ch32pe48-00002.png The naturally occurring radioactive isotope {}^{232} Th does not make good fission fuel, because it has an even number of neutrons; however, it can be bred into a suitable fuel (much as {}^{238} U is bred into {}^{239} Pu ). (a) What are Z and N for {}^{232} T (b) Write the reaction equation for neutron capture by {}^{232} Th and identify the nuclide {}^ A X produced in n + {}^{232} Th \rightarrow {}^ A X + \gamma. (c) The product nucleus \beta^- decays, as does its daughter. Write the decay equations for each, and identify the final nucleus. (d) Confirm that the final nucleus has an odd number of neutrons, making it a better fission fuel. (e) Look up the half-life of the final nucleus to see if it lives long enough to be a useful fuel. https://seo-videos.collegephysicsanswers.com/ch32/pe48/ed1ch32pe48.mp4 184 22 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-power-reactor-has-been-operation-some-months-turned-residual-activity-core A large power reactor that has been in operation for some months is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe50/thumbs-ed1ch32pe50-00002.png A large power reactor that has been in operation for some months is turned off, but residual activity in the core still produces 150 MW of power. If the average energy per decay of the fission products is 1.00 MeV, what is the core activity in curies? https://seo-videos.collegephysicsanswers.com/ch32/pe50/ed1ch32pe50.mp4 98 30 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-why-we-only-need-concern-ourselves-gravitational-force-describe-orbit Explain why we only need to concern ourselves with gravitational… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap02/thumbs-ed1ch33ap02-00002.png Explain why we only need to concern ourselves with gravitational force to describe the orbit of the Earth around the Sun. https://seo-videos.collegephysicsanswers.com/ch33/ap02/ed1ch33ap02.mp4 81 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-four-forces-gravitational-force-between-earth-and-sun-electrostatic Consider four forces: the gravitational force between the Earth and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap03/thumbs-ed1ch33ap03-00002.png Consider four forces: the gravitational force between the Earth and the Sun; the electrostatic force between the Earth and the Sun; the gravitational force between the proton and electron in a hydrogen atom, and the electrostatic force between the proton and electron in a hydrogen atom. What is the proper ordering of the magnitude of these forces, from greatest to least? (a) gravity, Earth-Sun; electrostatic, Earth-Sun; gravity, hydrogen; electrostatic, hydrogen(b) electrostatic, Earth-Sun; gravity, Earth-Sun; electrostatic, hydrogen; gravity, hydrogen(c) gravity, Earth-Sun; gravity, hydrogen; electrostatic, hydrogen; electrostatic, Earth-Sun(d) gravity, Earth-Sun; electrostatic, hydrogen; gravity, hydrogen; electrostatic, Earth-Sun https://seo-videos.collegephysicsanswers.com/ch33/ap03/ed1ch33ap03.mp4 80 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/deep-within-nucleon-which-stronger-force-between-two-quarks-gravity-or-weak Deep within a nucleon, which is the stronger force between two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap04/thumbs-ed1ch33ap04-00002.png Deep within a nucleon, which is the stronger force between two quarks, gravity or the weak force? Why do you think so? https://seo-videos.collegephysicsanswers.com/ch33/ap04/ed1ch33ap04.mp4 72 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-earth-moon-system-if-we-were-place-equal-charges-earth-and-moon-how Consider the Earth-Moon system. If we were to place equal charges on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap05/thumbs-ed1ch33ap05-00002.png Consider the Earth-Moon system. If we were to place equal charges on the Earth and the Moon, how large would they need to be for the electrostatic repulsion to counteract the gravitational attraction? (a) 5.1 x 10^{13} C (b) 5.7 x 10^{13} C (c) 6.7 x 10^{13} C (d) 3.3 x 10^{27} C https://seo-videos.collegephysicsanswers.com/ch33/ap05/ed1ch33ap05.mp4 93 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-strength-magnetic-field-created-orbiting-moon-center-orbit-system-previous What is the strength of the magnetic field created by the orbiting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap06/thumbs-ed1ch33ap06-00002.png What is the strength of the magnetic field created by the orbiting Moon, at the center of the orbit, in the system in the previous problem? (Treat the charge going around in orbit as a current loop.) How does this compare with the strength of the Earth's intrinsic magnetic field? https://seo-videos.collegephysicsanswers.com/ch33/ap06/ed1ch33ap06.mp4 127 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/atomic-nucleus-consists-positively-charged-protons-and-neutral-neutrons-so An atomic nucleus consists of positively charged protons and neutral… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap07/thumbs-ed1ch33ap07-00002.png An atomic nucleus consists of positively charged protons and neutral neutrons, so the electrostatic repulsion should destroy it by making the protons fly apart. This doesn't happen because: (a) The strong force is ~100 times stronger than electromagnetism.(b) The weak force generates massive particles that hold it together.(c) Electromagnetism is sometimes attractive.(d) Gravity is always attractive. https://seo-videos.collegephysicsanswers.com/ch33/ap07/ed1ch33ap07.mp4 31 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/atomic-number-atom-number-protons-atoms-nucleus-make-prediction-what-happens The atomic number of an atom is the number of protons in that atom's… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap08/thumbs-ed1ch33ap08-00002.png The atomic number of an atom is the number of protons in that atom's nucleus. Make a prediction as to what happens to electromagnetic repulsion as the atomic number gets larger. Then, make a further prediction about what this implies about the number of neutrons in heavy nuclei. https://seo-videos.collegephysicsanswers.com/ch33/ap08/ed1ch33ap08.mp4 205 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-below-was-first-hint-conservation-mass-and-conservation-energy-might-need Which of the below was the first hint that conservation of mass and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap09/thumbs-ed1ch33ap09-00002.png Which of the below was the first hint that conservation of mass and conservation of energy might need to be combined into one concept? (a) The Van de Graaff generator.(b) New particles showing up in accelerators.(c) Yukawa's theory.(d) They were always related. https://seo-videos.collegephysicsanswers.com/ch33/ap09/ed1ch33ap09.mp4 77 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-fast-would-two-70-kg-bowling-balls-each-have-be-going-collision-have-enough How fast would two 7.0-kg bowling balls each have to be going in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap10/thumbs-ed1ch33ap10-00002.png How fast would two 7.0-kg bowling balls each have to be going in a collision to have enough spare energy to create a 0.10-kg tennis ball? (Ignore relativistic effects.) Can you explain why we don't see this in daily situations? https://seo-videos.collegephysicsanswers.com/ch33/ap10/ed1ch33ap10.mp4 86 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-information-table-332-answer-following-questions-taking-only-energy-and-mass Use the information in [Table… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap11/thumbs-ed1ch33ap11-00002.png Use the information in [Table 33.2](https://cnx.org/contents/jQSmhtXo@23.1:ptmm4LhN@7/33-4-Particles-Patterns-and-Conservation-Laws) to answer the following questions. Taking only energy and mass into consideration, what is the minimum amount of kinetic energy a K^- must have when colliding with a stationary proton to produce an \Omega? (a) 240.5 MeV(b) 120.0 MeV(c) 15.5 MeV(d) 57.6 GeV https://seo-videos.collegephysicsanswers.com/ch33/ap11/ed1ch33ap11.mp4 107 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pi-and-pi-are-moving-toward-each-other-extremely-slowly-when-they-collide-two A \pi^+ and a \pi^- are moving toward each other extremely slowly.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap13/thumbs-ed1ch33ap13-00002.png A \pi^+ and a \pi^- are moving toward each other extremely slowly. When they collide, two \pi^0 are produced. How fast are they going? (Ignore relativistic effects.) (a) Barley moving(b) 1.0 x 10^{7} m/s (c) 2.0 x 10^{7} m/s (d) 7.8 x 10^{7} m/s (e) 5.5 x 10^{ 7} m/s https://seo-videos.collegephysicsanswers.com/ch33/ap13/ed1ch33ap13.mp4 259 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-pi-decays-products-may-include-positron-muon-proton-all-above When a \pi^- decays, the products may include: (a) A positron(b) A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap15/thumbs-ed1ch33ap15-00002.png When a \pi^- decays, the products may include: (a) A positron(b) A muon(c) A proton(d) All of the above https://seo-videos.collegephysicsanswers.com/ch33/ap15/ed1ch33ap15.mp4 36 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/speed-propagation-action-potential-electrical-signal-nerve-cell-depends The speed of propagation of the action potential (an electrical… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe12/thumbs-ed1ch02pe12-00002.png The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is 1.1 m long, and the nerve impulse speed is 18 m/s, how long does it take for the nerve signal to travel this distance? https://seo-videos.collegephysicsanswers.com/ch02/pe12/ed1ch02pe12.mp4 45 466 4.3 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tidal-friction-slowing-rotation-earth-result-orbit-moon-increasing-radius-rate Tidal friction is slowing the rotation of the Earth. As a result, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe10/thumbs-ed1ch02pe10-00002.png Tidal friction is slowing the rotation of the Earth. As a result, the orbit of the Moon is increasing in radius at a rate of approximately 4 cm/year. Assuming this to be a constant rate, how many years will pass before the radius of the Moon's orbit increases by 3.84 x 10^{6} m (1%)? https://seo-videos.collegephysicsanswers.com/ch02/pe10/ed1ch02pe10.mp4 114 361 5 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-teams-nine-members-each-engage-tug-war-each-first-teams-members-has-average Two teams of nine members each engage in a tug of war. Each of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe17/thumbs-ed1ch04pe17-00002.png Two teams of nine members each engage in a tug of war. Each of the first team’s members has an average mass of 68 kg and exerts an average force of 1350 N horizontally. Each of the second team’s members has an average mass of 73 kg and exerts an average force of 1365 N horizontally. (a) What is magnitude of the acceleration of the two teams? (b) What is the tension in the section of rope between the teams? https://seo-videos.collegephysicsanswers.com/ch04/pe17/ed1ch04pe17.mp4 202 1588 4.1 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cheetah-can-accelerate-rest-speed-300-ms-700-s-what-its-acceleration A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe16/thumbs-ed1ch02pe16-00002.png A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration? https://seo-videos.collegephysicsanswers.com/ch02/pe16/ed1ch02pe16.mp4 34 745 3.5 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/notice-table-332-neutron-has-half-life-882-seconds-only-free-neutron-not-bound Notice in [Table… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap16/thumbs-ed1ch33ap16-00002.png Notice in [Table 33.2](https://openstax.org/books/college-physics/pages/33-4-particles-patterns-and-conservation-laws#import-auto-id1169736657305) that the neutron has a half-life of 882 seconds. This is only for a free neutron, not bound with other neutrons and protons in a nucleus. Given the other particles in the table, and using both their charge and masses, what do you think the most likely decay products for a neutron are? Justify your answer. https://seo-videos.collegephysicsanswers.com/ch33/ap16/ed1ch33ap16.mp4 80 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/accelerators-such-triangle-universities-meson-facility-triumf-british-columbia Accelerators such as the Triangle Universities Meson Facility… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe22/thumbs-ed1ch33pe22-00002.png Accelerators such as the Triangle Universities Meson Facility (TRIUMF) in British Columbia produce secondary beams of pions by having an intense primary proton beam strike a target. Such “meson factories” have been used for many years to study the interaction of pions with nuclei and, hence, the strong nuclear force. One reaction that occurs is \pi^+ + p \rightarrow \Delta^{++} \rightarrow \pi^+ + p, where the \Delta^{++} is a is a very short-lived particle. The graph in Figure 33.26 shows the probability of this reaction as a function of energy. The width of the bump is the uncertainty in energy due to the short lifetime of the \Delta^{++}. (a) Find this lifetime. (b) Verify from the quark composition of the particles that this reaction annihilates and then re-creates a d quark and a \overline{d} antiquark by writing the reaction and decay in terms of quarks. (c) Draw a Feynman diagram of the production and decay of the \Delta^{++} showing the individual quarks involved. https://seo-videos.collegephysicsanswers.com/ch33/pe22/ed1ch33pe22.mp4 206 8 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/commuter-backs-her-car-out-her-garage-acceleration-140-ms2-how-long-does-it-take A commuter backs her car out of her garage with an acceleration of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe18/thumbs-ed1ch02pe18-00002.png A commuter backs her car out of her garage with an acceleration of 1.40 m/s ^2 . (a) How long does it take her to reach a speed of 2.00 m/s ? (b) If she then brakes to a stop in 0.800 s , what is her deceleration? https://seo-videos.collegephysicsanswers.com/ch02/pe18/ed1ch02pe18.mp4 126 988 3.8 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/olympic-class-sprinter-starts-race-acceleration-450-ms2-what-her-speed-240-s An Olympic-class sprinter starts a race with an acceleration of 4.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe20/thumbs-ed1ch02pe20-00002.png An Olympic-class sprinter starts a race with an acceleration of 4.50 m/s ^2 . (a) What is her speed 2.40 s later? (b) Sketch a graph of her position vs. time for this period. https://seo-videos.collegephysicsanswers.com/ch02/pe20/ed1ch02pe20.mp4 148 801 3.6 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-tension-vertical-strand-spider-web-if-spider-mass-800-times-10-5-kg (a) Calculate the tension in a vertical strand of spider web if a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe19/thumbs-ed1ch04pe19-00002.png (a) Calculate the tension in a vertical strand of spider web if a spider of mass 8.00 x 10^{-5} kg hangs motionless on it. (b) Calculate the tension in a horizontal strand of spider web if the same spider sits motionless in the middle of it much like the tightrope walker in Figure 4.17. The strand sags at an angle of 12° below the horizontal. Compare this with the tension in the vertical strand (find their ratio). https://seo-videos.collegephysicsanswers.com/ch04/pe19/ed1ch04pe19.mp4 222 1513 3.5 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-times-105-kg-rocket-accelerating-straight-its-engines-produce-1250-times-107 A 5.00 x 10^5 kg rocket is accelerating straight up. Its engines… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe23/thumbs-ed1ch04pe23-00002.png A 5.00 x 10^5 kg rocket is accelerating straight up. Its engines produce 1.250 x 10^7 N of thrust, and air resistance is 4.50 x 10^6 N . What is the rocket’s acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion. https://seo-videos.collegephysicsanswers.com/ch04/pe23/ed1ch04pe23.mp4 96 803 4.1 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-could-you-collect-and-analyze-data-test-difference-between-torques-provided How could you collect and analyze data to test the difference between… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap26/thumbs-ed1ch10ap26-00002.png How could you collect and analyze data to test the difference between the torques provided by two speeds on a tabletop fan? https://seo-videos.collegephysicsanswers.com/ch10/ap26/ed1ch10ap26.mp4 106 6 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-force-700-kg-high-jumper-must-exert-ground-produce-upward-acceleration Calculate the force a 70.0-kg high jumper must exert on the ground to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe25/thumbs-ed1ch04pe25-00002.png Calculate the force a 70.0-kg high jumper must exert on the ground to produce an upward acceleration 4.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion. https://seo-videos.collegephysicsanswers.com/ch04/pe25/ed1ch04pe25.mp4 141 863 4.4 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/football-quarterback-runs-150-m-straight-down-playing-field-250-s-he-then-hit A football quarterback runs 15.0 m straight down the playing field in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe14/thumbs-ed1ch02pe14-00002.png A football quarterback runs 15.0 m straight down the playing field in 2.50 s. He is then hit and pushed 3.00 m straight backward in 1.75 s. He breaks the tackle and runs straight forward another 21.0 m in 5.20 s. Calculate his average velocity (a) for each of the three intervals and (b) for the entire motion. https://seo-videos.collegephysicsanswers.com/ch02/pe14/ed1ch02pe14.mp4 181 945 4.4 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-could-you-use-fishing-reel-test-relationship-between-torque-applied-system How could you use a fishing reel to test the relationship between the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap30/thumbs-ed1ch10ap30-00002.png How could you use a fishing reel to test the relationship between the torque applied to a system, the time for which the torque was applied, and the resulting angular momentum of the system? How would you measure angular momentum? https://seo-videos.collegephysicsanswers.com/ch10/ap30/ed1ch10ap30.mp4 225 6 2021-02-17 yes 2021-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/freight-train-consists-two-800-times-104-kg-engines-and-45-cars-average-masses A freight train consists of two 8.00 x 10^4 kg engines and 45 cars… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe27/thumbs-ed1ch04pe27-00002.png A freight train consists of two 8.00 x 10^4 kg engines and 45 cars with average masses of 5.50 x 10^4 kg . (a) What force must each engine exert backward on the track to accelerate the train at a rate of 5.00 x 10^{-2} m/s ^2 if the force of friction is 7.50 x 10^5 N , assuming the engines exert identical forces? This is not a large frictional force for such a massive system. Rolling friction for trains is small, and consequently trains are very energy-efficient transportation systems. (b) What is the force in the coupling between the 37th and 38th cars (this is the force each exerts on the other), assuming all cars have the same mass and that friction is evenly distributed among all of the cars and engines? https://seo-videos.collegephysicsanswers.com/ch04/pe27/ed1ch04pe27.mp4 378 743 3.6 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bullet-gun-accelerated-firing-chamber-end-barrel-average-rate-620-times A bullet in a gun is accelerated from the firing chamber to the end… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe22/thumbs-ed1ch02pe22-00002.png A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an average rate of 6.20 x 10^{5} m/s ^2 for 8.10 x 10^{-4} s . What is its muzzle velocity (that is, its final velocity)? https://seo-videos.collegephysicsanswers.com/ch02/pe22/ed1ch02pe22.mp4 49 483 4.4 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/while-entering-freeway-car-accelerates-rest-rate-240-ms2-120-s-draw-sketch While entering a freeway, a car accelerates from rest at a rate of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe24/thumbs-ed1ch02pe24-00002.png While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s ^2 for 12.0 s. (a) Draw a sketch of the situation. (b) List the knowns in this problem. (c) How far does the car travel in those 12.0 s? To solve this part, first identify the unknown, and then discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, check your units, and discuss whether the answer is reasonable. (d) What is the car's final velocity? Solve for this unknown in the same manner as in part (c), showing all steps explicitly. https://seo-videos.collegephysicsanswers.com/ch02/pe24/ed1ch02pe24.mp4 134 519 3.7 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-children-pull-third-child-snow-saucer-sled-exerting-forces-f1-and-f2-shown Two children pull a third child on a snow saucer sled exerting forces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe31/thumbs-ed1ch04pe31-00002.png Two children pull a third child on a snow saucer sled exerting forces F_1 and F_2 as shown from above in Figure 4.35. Find the acceleration of the 49.00-kg sled and child system. Note that the direction of the frictional force is unspecified; it will be in the opposite direction of the sum of F_1 and F_2. https://seo-videos.collegephysicsanswers.com/ch04/pe31/ed1ch04pe31.mp4 259 1066 3.9 2018-02-24 yes 2018-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/maximum-characteristic-x-ray-photon-energy-comes-capture-free-electron-k-shell The maximum characteristic x-ray photon energy comes from the capture… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe28/thumbs-ed1ch30pe28-00002.png The maximum characteristic x-ray photon energy comes from the capture of a free electron into a K shell vacancy. What is this photon energy in keV for tungsten, assuming the free electron has no initial kinetic energy? https://seo-videos.collegephysicsanswers.com/ch30/pe28/ed1ch30pe28.mp4 178 42 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nurse-pushes-cart-exerting-force-handle-downward-angle-350circ-below-horizontal A nurse pushes a cart by exerting a force on the handle at a downward… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe35/thumbs-ed1ch04pe35-00002.png A nurse pushes a cart by exerting a force on the handle at a downward angle 35.0° below the horizontal. The loaded cart has a mass of 28.0 kg, and the force of friction is 60.0 N. (a) Draw a free-body diagram for the system of interest. (b) What force must the nurse exert to move at a constant velocity? https://seo-videos.collegephysicsanswers.com/ch04/pe35/ed1ch04pe35.mp4 79 977 4.7 2018-02-24 yes 2018-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/blood-accelerated-rest-300-cms-distance-180-cm-left-ventricle-heart-make-sketch Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe26/thumbs-ed1ch02pe26-00002.png Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm by the left ventricle of the heart. (a) Make a sketch of the situation. (b) List the knowns in this problem. (c) How long does the acceleration take? To solve this part, first identify the unknown, and then discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, checking your units. (d) Is the answer reasonable when compared with the time for a heartbeat? https://seo-videos.collegephysicsanswers.com/ch02/pe26/ed1ch02pe26.mp4 177 764 3 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fireworks-shell-accelerated-rest-velocity-650-ms-over-distance-0250-m-how-long A fireworks shell is accelerated from rest to a velocity of 65.0 m/s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe30/thumbs-ed1ch02pe30-00002.png A fireworks shell is accelerated from rest to a velocity of 65.0 m/s over a distance of 0.250 m. (a) How long did the acceleration last? (b) Calculate the acceleration. https://seo-videos.collegephysicsanswers.com/ch02/pe30/ed1ch02pe30.mp4 203 494 4.1 2019-06-06 yes 2019-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/350-kg-dolphin-decelerates-120-750-ms-230-s-join-another-dolphin-play-what A 35.0-kg dolphin decelerates from 12.0 to 7.50 m/s in 2.30 s to join… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe43/thumbs-ed1ch04pe43-00002.png A 35.0-kg dolphin decelerates from 12.0 to 7.50 m/s in 2.30 s to join another dolphin in play. What average force was exerted to slow him if he was moving horizontally? (The gravitational force is balanced by the buoyant force of the water.) https://seo-videos.collegephysicsanswers.com/ch04/pe43/ed1ch04pe43.mp4 87 489 2018-02-27 yes 2018-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-250-kg-fireworks-shell-fired-straight-mortar-and-reaches Integrated Concepts: A 2.50-kg fireworks shell is fired straight up… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe47/thumbs-ed1ch04pe47-00002.png Integrated Concepts: A 2.50-kg fireworks shell is fired straight up from a mortar and reaches a height of 110 m. (a) Neglecting air resistance (a poor assumption, but we will make it for this example), calculate the shell’s velocity when it leaves the mortar. (b) The mortar itself is a tube 0.450 m long. Calculate the average acceleration of the shell in the tube as it goes from zero to the velocity found in (a). (c) What is the average force on the shell in the mortar? Express your answer in newtons and as a ratio to the weight of the shell. https://seo-videos.collegephysicsanswers.com/ch04/pe47/ed1ch04pe47.mp4 357 235 5 2018-02-28 yes 2018-02-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-elevator-filled-passengers-has-mass-1700-kg-elevator Integrated Concepts An elevator filled with passengers has a mass of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe49/ed1ch04pe49b-thumbnail.jpg Integrated Concepts An elevator filled with passengers has a mass of 1700 kg. (a) The elevator accelerates upward from rest at a rate of 1.20 m/s ^2 for 1.50 s. Calculate the tension in the cable supporting the elevator. (b) The elevator continues upward at constant velocity for 8.50 s. What is the tension in the cable during this time? (c) The elevator decelerates at a rate of 0.600 m/s ^2 for 3.00 s. What is the tension in the cable during deceleration? (d) How high has the elevator moved above its original starting point, and what is its final velocity? https://seo-videos.collegephysicsanswers.com/ch04/pe49/ed1ch04pe49b.mp4 652 516 2.3 2023-11-30 yes 2023-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/physics-major-cooking-breakfast-when-he-notices-frictional-force-between-his A physics major is cooking breakfast when he notices that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe01/thumbs-ed1ch05pe01-00002.png A physics major is cooking breakfast when he notices that the frictional force between his steel spatula and his Teflon frying pan is only 0.200 N. Knowing the coefficient of kinetic friction between the two materials, he quickly calculates the normal force. What is it? https://d1igkeoc1zsqhw.cloudfront.net/ch05/pe01/ed1ch05pe01.mp4 46 987 4.1 2018-03-02 no 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-frictional-force-knee-joint-person-who-supports-660-kg-her-mass (a) What is the maximum frictional force in the knee joint of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe03/thumbs-ed1ch05pe03-00002.png (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her mass on that knee? (b) During strenuous exercise it is possible to exert forces to the joints that are easily ten times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pain. https://seo-videos.collegephysicsanswers.com/ch05/pe03/ed1ch05pe03.mp4 87 770 3.8 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rescue-helicopter-hovering-over-person-whose-boat-has-sunk-one-rescuers-throws A rescue helicopter is hovering over a person whose boat has sunk.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe44/thumbs-ed1ch02pe44-00002.png A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.40 m/s and observes that it takes 1.8 s to reach the water. (a) List the knowns in this problem. (b) How high above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable. https://seo-videos.collegephysicsanswers.com/ch02/pe44/ed1ch02pe44.mp4 133 535 2.7 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/woodpeckers-brain-specially-protected-large-decelerations-tendon-attachments A woodpecker's brain is specially protected from large decelerations… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe32/thumbs-ed1ch02pe32-00002.png A woodpecker's brain is specially protected from large decelerations by tendon-like attachments inside the skull. While pecking on a tree, the woodpecker's head comes to a stop from an initial velocity of 0.600 m/s in a distance of only 2.00 mm. (a) Find the acceleration in m/s ^2 and in multiples of g (g = 9.80 m/s ^2). (b) Calculate the stopping time. (c) The tendons cradling the brain stretch, making its stopping distance 4.50 mm (greater than the head and, hence, less deceleration of the brain). What is the brain's deceleration, expressed in multiples of g? https://seo-videos.collegephysicsanswers.com/ch02/pe32/ed1ch02pe32.mp4 292 704 5 2019-06-06 yes 2019-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/kangaroo-can-jump-over-object-250-m-high-calculate-its-vertical-speed-when-it A kangaroo can jump over an object 2.50 m high. (a) Calculate its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe50/thumbs-ed1ch02pe50-00002.png A kangaroo can jump over an object 2.50 m high. (a) Calculate its vertical speed when it leaves the ground. (b) How long is it in the air? https://seo-videos.collegephysicsanswers.com/ch02/pe50/ed1ch02pe50.mp4 216 810 4.1 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-half-weight-small-100-times-103-kg-utility-truck-supported-its-two-drive (a) If half of the weight of a small 1.00 x 10^3 kg utility truck is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe05/ed1ch05pe05b-thumbnail.jpg (a) If half of the weight of a small 1.00 x 10^3 kg utility truck is supported by its two drive wheels, what is the magnitude of the maximum acceleration it can achieve on dry concrete? (b) Will a metal cabinet lying on the wooden bed of the truck slip if it accelerates at this rate? (c) Solve both problems assuming the truck has four-wheel drive. https://seo-videos.collegephysicsanswers.com/ch05/pe05/ed1ch05pe05b.mp4 575 993 3.4 2023-12-08 yes 2023-12-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/squids-have-been-reported-jump-ocean-and-travel-300-m-measured-horizontally-re Squids have been reported to jump from the ocean and travel 30.0 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe62/thumbs-ed1ch08pe62-00002.png Squids have been reported to jump from the ocean and travel 30.0 m (measured horizontally) before re-entering the water. (a) Calculate the initial speed of the squid if it leaves the water at an angle of 20.0° , assuming negligible lift from the air and negligible air resistance. (b) The squid propels itself by squirting water. What fraction of its mass would it have to eject in order to achieve the speed found in the previous part? The water is ejected at 12.0 m/s ; gravitational force and friction are neglected. (c) What is unreasonable about the results? (d) Which premise is unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch08/pe62/ed1ch08pe62.mp4 309 30 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ion-propulsion-rockets-have-been-proposed-use-space-they-employ-atomic Ion-propulsion rockets have been proposed for use in space. They… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe56/thumbs-ed1ch08pe56-00002.png Ion-propulsion rockets have been proposed for use in space. They employ atomic ionization techniques and nuclear energy sources to produce extremely high exhaust velocities, perhaps as great as 8.00 x 10^{6} m/s . These techniques allow a much more favorable payload-to-fuel ratio. To illustrate this fact: (a) Calculate the increase in velocity of a 20,000-kg space probe that expels only 40.0-kg of its mass at the given exhaust velocity. (b) These engines are usually designed to produce a very small thrust for a very long time—the type of engine that might be useful on a trip to the outer planets, for example. Calculate the acceleration of such an engine if it expels 4.50 x 10^{-6} kg/s at the given velocity, assuming the acceleration due to gravity is negligible. https://seo-videos.collegephysicsanswers.com/ch08/pe56/ed1ch08pe56.mp4 237 60 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-displacement-and-velocity-times-0500-b-100-c-150-d-200-and-e-250-s Calculate the displacement and velocity at times of (a) 0.500, (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe42/thumbs-ed1ch02pe42-00002.png Calculate the displacement and velocity at times of (a) 0.500, (b) 1.00, (c) 1.50, (d) 2.00, and (e) 2.50 s for a rock thrown straight down with an initial velocity of 14.0 m/s from the Verrazano Narrows Bridge in New York City. The roadway of this bridge is 70.0 m above the water. https://seo-videos.collegephysicsanswers.com/ch02/pe42/ed1ch02pe42.mp4 306 696 4.3 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-maximum-rate-which-rocket-can-expel-gases-if-its-acceleration-cannot (a) Calculate the maximum rate at which a rocket can expel gases if… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe58/thumbs-ed1ch08pe58-00002.png (a) Calculate the maximum rate at which a rocket can expel gases if its acceleration cannot exceed seven times that of gravity. The mass of the rocket just as it runs out of fuel is 75,000 kg, and its exhaust velocity is 2.40 x 10^{3} m/s . Assume that the acceleration of gravity is the same as on Earth's surface, 9.80 m/s ^2. (b) Why might it be necessary to limit the acceleration of a rocket? https://seo-videos.collegephysicsanswers.com/ch08/pe58/ed1ch08pe58.mp4 122 36 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-650-kg-ice-skater-being-pushed-two-others-shown-figure-519-find Consider the 65.0-kg ice skater being pushed by two others shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe07/thumbs-ed1ch05pe07-00002.png Consider the 65.0-kg ice skater being pushed by two others shown in Figure 5.19. (a) Find the direction and magnitude of F_{tot}, the total force exerted on her by the others, given that the magnitudes F_1 and F_2 are 26.4 N and 18.6 N, respectively. (b) What is her initial acceleration if she is initially stationary and wearing steel-bladed skates that point in the direction of F_{tot}? (c) What is her acceleration assuming she is already moving in the direction of F_{tot}? (Remember that friction always acts in the direction opposite that of motion or attempted motion between surfaces in contact.) https://seo-videos.collegephysicsanswers.com/ch05/pe07/ed1ch05pe07.mp4 259 1156 5 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-single-stage-rocket-100000-kg-can-be-anything-fuel-if-rocket-have-final How much of a single-stage rocket that is 100,000 kg can be anything… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe60/thumbs-ed1ch08pe60-00002.png How much of a single-stage rocket that is 100,000 kg can be anything but fuel if the rocket is to have a final speed of 8.00 km/s , given that it expels gases at an exhaust velocity of 2.20 x 10^{3} m/s ? https://seo-videos.collegephysicsanswers.com/ch08/pe60/ed1ch08pe60.mp4 120 36 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/world-record-was-set-mens-100-m-dash-2008-olympic-games-beijing-usain-bolt (a) A world record was set for the men's 100-m dash in the 2008… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe40/thumbs-ed1ch02pe40-00002.png (a) A world record was set for the men's 100-m dash in the 2008 Olympic Games in Beijing by Usain Bolt of Jamaica. Bolt “coasted” across the finish line with a time of 9.69 s. If we assume that Bolt accelerated for 3.00 s to reach his maximum speed, and maintained that speed for the rest of the race, calculate his maximum speed and his acceleration. (b) During the same Olympics, Bolt also set the world record in the 200-m dash with a time of 19.30 s. Using the same assumptions as for the 100-m dash, what was his maximum speed for this race? https://seo-videos.collegephysicsanswers.com/ch02/pe40/ed1ch02pe40.mp4 530 673 3 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-acceleration-any-object-down-incline-where-friction-behaves-simply-where-fk Show that the acceleration of any object down an incline where… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe09/thumbs-ed1ch05pe09-00002.png Show that the acceleration of any object down an incline where friction behaves simply (that is, where f_k = \mu_kN) is a = g(\sin\theta - \mu_k \cos\theta). Note that the acceleration is independent of mass and reduces to the expression found in the previous problem when friction becomes negligibly small (\mu_k = 0). https://seo-videos.collegephysicsanswers.com/ch05/pe09/ed1ch05pe09.mp4 277 988 5 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-approximate-values-calculate-slope-curve-figure-262-verify-velocity-t-100 Using approximate values, calculate the slope of the curve in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe60/thumbs-ed1ch02pe60-00002.png Using approximate values, calculate the slope of the curve in Figure 2.62 to verify that the velocity at t = 10.0 s is 0.208 m/s. Assume all values are known to 3 significant figures. https://seo-videos.collegephysicsanswers.com/ch02/pe60/ed1ch02pe60.mp4 94 384 5 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-acceleration-skier-heading-down-100circ-slope-assuming-coefficient (a) Calculate the acceleration of a skier heading down a 10.0° slope,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe11/thumbs-ed1ch05pe11-00002.png (a) Calculate the acceleration of a skier heading down a 10.0° slope, assuming the coefficient of friction for waxed wood on wet snow. (b) Find the angle of the slope down which this skier could coast at a constant velocity. You can neglect air resistance in both parts, and you will find the result of Exercise 5.9 to be useful. Explicitly show how you follow the steps in the Problem-Solving Strategies. https://seo-videos.collegephysicsanswers.com/ch05/pe11/ed1ch05pe11.mp4 403 908 3.9 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/take-slope-curve-figure-264-find-joggers-velocity-t-25-s-b-repeat-75-s-these (a) Take the slope of the curve in Figure 2.64 to find the jogger's… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe64/thumbs-ed1ch02pe64-00002.png (a) Take the slope of the curve in Figure 2.64 to find the jogger's velocity at t = 2.5 s . (b) Repeat at 7.5 s. These values must be consistent with the graph in Figure 2.65. https://seo-videos.collegephysicsanswers.com/ch02/pe64/ed1ch02pe64.mp4 288 381 5 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-maximum-deceleration-car-heading-down-slope-one-makes-angle-6circ Calculate the maximum deceleration of a car that is heading down a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe13/thumbs-ed1ch05pe13-00002.png Calculate the maximum deceleration of a car that is heading down a slope (one that makes an angle of 6° with the horizontal) under the following road conditions. You may assume that the weight of the car is evenly distributed on all four tires and that the coefficient of static friction is involved—that is, the tires are not allowed to slip during the deceleration. (Ignore rolling.) Calculate for a car: (a) On dry concrete. (b) On wet concrete. (c) On ice, assuming that \mu_s = 0.100, the same as for shoes on ice. https://seo-videos.collegephysicsanswers.com/ch05/pe13/ed1ch05pe13.mp4 371 802 3.7 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/flea-jumps-exerting-force-120-times-10-5-n-straight-down-ground-breeze-blowing A flea jumps by exerting a force of 1.20 x 10^{-5} N straight down… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe40/thumbs-ed1ch04pe40-00002.png A flea jumps by exerting a force of 1.20 x 10^{-5} N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 0.500 x 10^{-6} N on the flea. Find the direction and magnitude of the acceleration of the flea if its mass is 6.00 x 10^{-7} kg . Do not neglect the gravitational force. https://seo-videos.collegephysicsanswers.com/ch04/pe40/ed1ch04pe40.mp4 242 815 3.5 2019-09-23 yes 2019-09-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-520-kg-mountain-climber-figure-520-find-tension-rope-and-force-mountain Consider the 52.0-kg mountain climber in Figure 5.20. (a) Find the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe17/thumbs-ed1ch05pe17-00002.png Consider the 52.0-kg mountain climber in Figure 5.20. (a) Find the tension in the rope and the force that the mountain climber must exert with her feet on the vertical rock face to remain stationary. Assume that the force is exerted parallel to her legs. Also, assume negligible force exerted by her arms. (b) What is the minimum coefficient of friction between her shoes and the cliff? https://seo-videos.collegephysicsanswers.com/ch05/pe17/ed1ch05pe17.mp4 411 1423 4.1 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/60-kg-and-90-kg-skydiver-jump-airplane-altitude-6000-m-both-falling-headfirst A 60-kg and a 90-kg skydiver jump from an airplane at an altitude of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe21/thumbs-ed1ch05pe21-00002.png A 60-kg and a 90-kg skydiver jump from an airplane at an altitude of 6000 m, both falling in a headfirst position. Make some assumption on their frontal areas and calculate their terminal velocities. How long will it take for each skydiver to reach the ground (assuming the time to reach terminal velocity is small)? Assume all values are accurate to three significant digits. https://seo-videos.collegephysicsanswers.com/ch05/pe21/ed1ch05pe21.mp4 146 399 2.7 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/taking-age-earth-be-about-4times-109-years-and-assuming-its-orbital-radius-15 Taking the age of Earth to be about 4 x 10^{9} years and assuming its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe12/thumbs-ed1ch06pe12-00002.png Taking the age of Earth to be about 4 x 10^{9} years and assuming its orbital radius of 1.5 x 10^{11} m has not changed and is circular, calculate the approximate total distance Earth has traveled since its birth (in a frame of reference stationary with respect to the Sun). https://seo-videos.collegephysicsanswers.com/ch06/pe12/ed1ch06pe12.mp4 94 512 4.8 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-acceleration-due-gravity-surface-sun-b-what-factor-would-your-weight (a) Calculate the acceleration due to gravity on the surface of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe36/thumbs-ed1ch06pe36-00002.png (a) Calculate the acceleration due to gravity on the surface of the Sun. (b) By what factor would your weight increase if you could stand on the Sun? (Never mind that you cannot.) https://seo-videos.collegephysicsanswers.com/ch06/pe36/ed1ch06pe36.mp4 128 531 5 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/700-kg-ice-hockey-goalie-originally-rest-catches-0150-kg-hockey-puck-slapped-him A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe30/thumbs-ed1ch08pe30-00002.png A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a velocity of 35.0 m/ s. Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would their final velocities be in this case? https://seo-videos.collegephysicsanswers.com/ch08/pe30/ed1ch08pe30.mp4 505 1135 4.5 2019-09-26 yes 2019-09-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-terminal-velocity-spherical-bacterium-diameter-200-mutextrmm-falling-water Find the terminal velocity of a spherical bacterium (diameter 2.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe27/thumbs-ed1ch05pe27-00002.png Find the terminal velocity of a spherical bacterium (diameter 2.00 \mu m ) falling in water. You will first need to note that the drag force is equal to the weight at terminal velocity. Take the density of the bacterium to be 1.10 x 10^3 kg/m ^3. https://seo-videos.collegephysicsanswers.com/ch05/pe27/ed1ch05pe27.mp4 121 645 4.1 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/takeoff-commercial-jet-has-600-ms-speed-its-tires-have-diameter-0850-m-how-many At takeoff, a commercial jet has a 60.0 m/s speed. Its tires have a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe20/thumbs-ed1ch06pe20-00002.png At takeoff, a commercial jet has a 60.0 m/s speed. Its tires have a diameter of 0.850 m. (a) At how many rev/min are the tires rotating? (b) What is the centripetal acceleration at the edge of the tire? (c) With what force must a determined 1.00 x 10^{-15} kg bacterium cling to the rim? (d) Take the ratio of this force to the bacterium's weight. https://seo-videos.collegephysicsanswers.com/ch06/pe20/ed1ch06pe20.mp4 148 530 4.1 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-circus-act-one-performer-swings-upside-down-hanging-trapeze-holding During a circus act, one performer swings upside down hanging from a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe29/thumbs-ed1ch05pe29-00002.png During a circus act, one performer swings upside down hanging from a trapeze holding another, also upside-down, performer by the legs. If the upward force on the lower performer is three times her weight, how much do the bones (the femurs) in her upper legs stretch? You may assume each is equivalent to a uniform rod 35.0 cm long and 1.80 cm in radius. Her mass is 60.0 kg. https://seo-videos.collegephysicsanswers.com/ch05/pe29/ed1ch05pe29.mp4 137 816 4.7 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-linear-speed-ultracentrifuge-about-050-kms-and-earth-its-orbit-about-30 Verify that the linear speed of an ultracentrifuge is about 0.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe18/thumbs-ed1ch06pe18-00002.png Verify that the linear speed of an ultracentrifuge is about 0.50 km/s, and Earth in its orbit is about 30 km/s by calculating: (a) The linear speed of a point on an ultracentrifuge 0.100 m from its center, rotating at 50,000 rev/min. (b) The linear speed of Earth in its orbit about the Sun (use data from the text on the radius of Earth's orbit and approximate it as being circular). https://seo-videos.collegephysicsanswers.com/ch06/pe18/ed1ch06pe18.mp4 190 526 4.3 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-angles-can-l-make-z-axis-l-2-electron-b-calculate-value-smallest-angle (a) How many angles can L make with the z -axis for an l = 2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe42/thumbs-ed1ch30pe42-00002.png (a) How many angles can L make with the z -axis for an l = 2 electron? (b) Calculate the value of the smallest angle. https://seo-videos.collegephysicsanswers.com/ch30/pe42/ed1ch30pe42.mp4 235 47 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ruby-lasers-have-chromium-atoms-doped-aluminum-oxide-crystal-energy-level Ruby lasers have chromium atoms doped in an aluminum oxide crystal.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe32/thumbs-ed1ch30pe32-00002.png Ruby lasers have chromium atoms doped in an aluminum oxide crystal. The energy level diagram for chromium in a ruby is shown in Figure 30.64. What wavelength is emitted by a ruby laser? https://seo-videos.collegephysicsanswers.com/ch30/pe32/ed1ch30pe32.mp4 107 86 4 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-and-magnetic-forces-electron-crt-figure-307-are-supposed-be-opposite The electric and magnetic forces on an electron in the CRT in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe52/thumbs-ed1ch30pe52-00002.png The electric and magnetic forces on an electron in the CRT in Figure 30.7 are supposed to be in opposite directions. Verify this by determining the direction of each force for the situation shown. Explain how you obtain the directions (that is, identify the rules used). https://seo-videos.collegephysicsanswers.com/ch30/pe52/ed1ch30pe52.mp4 105 8 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-most-powerful-lasers-are-based-energy-levels-neodymium-solids-such-glass Some of the most powerful lasers are based on the energy levels of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe34/thumbs-ed1ch30pe34-00002.png Some of the most powerful lasers are based on the energy levels of neodymium in solids, such as glass, as shown in Figure 30.65. (a) What average wavelength light can pump the neodymium into the levels above its metastable state? (b) Verify that the 1.17 eV transition produces 1.06 \mu m radiation. https://seo-videos.collegephysicsanswers.com/ch30/pe34/ed1ch30pe34.mp4 91 44 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lead-pencils-graphite-composition-youngs-modulus-about-1-times-109-nm2-calculate (a) The “lead” in pencils is a graphite composition with a Young's… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe31/thumbs-ed1ch05pe31-00002.png (a) The “lead” in pencils is a graphite composition with a Young's modulus of about 1 x 10^9 N/m ^2. Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long. (b) Is the answer reasonable? That is, does it seem to be consistent with what you have observed when using pencils? https://seo-videos.collegephysicsanswers.com/ch05/pe31/ed1ch05pe31.mp4 90 541 3.7 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/630-kg-sprinter-accelerates-rate-420-ms2-20-m-and-then-maintains-velocity A 63.0 kg sprinter accelerates at a rate of 4.20 m/s ^2 for 20 m, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe02/thumbs-ed1ch04pe02-00002.png A 63.0 kg sprinter accelerates at a rate of 4.20 m/s ^2 for 20 m, and then maintains that velocity for the remainder of the 100-m dash, what will be his time for the race? https://seo-videos.collegephysicsanswers.com/ch04/pe02/ed1ch04pe02.mp4 213 1525 4.7 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-does-650-kg-mountain-climber-stretch-her-0800-cm-diameter-nylon-rope (a) By how much does a 65.0-kg mountain climber stretch her 0.800-cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe33/thumbs-ed1ch05pe33-00002.png (a) By how much does a 65.0-kg mountain climber stretch her 0.800-cm diameter nylon rope when she hangs 35.0 m below a rock outcropping? (b) Does the answer seem to be consistent with what you have observed for nylon ropes? Would it make sense if the rope were actually a bungee cord? https://seo-videos.collegephysicsanswers.com/ch05/pe33/ed1ch05pe33.mp4 117 565 5 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/oil-well-drilled-each-new-section-drill-pipe-supports-its-own-weight-and-pipe As an oil well is drilled, each new section of drill pipe supports… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe35/thumbs-ed1ch05pe35-00002.png As an oil well is drilled, each new section of drill pipe supports its own weight and that of the pipe and drill bit beneath it. Calculate the stretch in a new 6.00 m length of steel pipe that supports 3.00 km of pipe having a mass of 20.0 kg/m and a 100-kg drill bit. The pipe is equivalent in stiffness to a solid cylinder 5.00 cm in diameter. https://seo-videos.collegephysicsanswers.com/ch05/pe35/ed1ch05pe35.mp4 152 250 3.8 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/vertebra-subjected-shearing-force-500-n-find-shear-deformation-taking-vertebra A vertebra is subjected to a shearing force of 500 N. Find the shear… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe37/thumbs-ed1ch05pe37-00002.png A vertebra is subjected to a shearing force of 500 N. Find the shear deformation, taking the vertebra to be a cylinder 3.00 cm high and 4.00 cm in diameter. https://seo-videos.collegephysicsanswers.com/ch05/pe37/ed1ch05pe37.mp4 114 517 5 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/laboratory-experiment-designed-duplicate-thomsons-determination-dfracqeme-beam In a laboratory experiment designed to duplicate Thomson’s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe58/thumbs-ed1ch30pe58-00002.png In a laboratory experiment designed to duplicate Thomson’s determination of \dfrac{q_e}{m_e} , a beam of electrons having a velocity of 6.00 x 10^{7} m/s enters a 5.00 x 10^{-3} T magnetic field. The beam moves perpendicular to the field in a path having a 6.80-cm radius of curvature. Determine \dfrac{q_e}{m_e} from these observations, and compare the result with the known value. https://seo-videos.collegephysicsanswers.com/ch30/pe58/ed1ch30pe58.mp4 143 12 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/millikan-oil-drop-experiment-using-setup-figure-309-500-v-potential-difference In a Millikan oil-drop experiment using a setup like that in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe56/thumbs-ed1ch30pe56-00002.png In a Millikan oil-drop experiment using a setup like that in Figure 30.9, a 500-V potential difference is applied to plates separated by 2.50 cm. (a) What is the mass of an oil drop having two extra electrons that is suspended motionless by the field between the plates? (b) What is the diameter of the drop, assuming it is a sphere with the density of olive oil? https://seo-videos.collegephysicsanswers.com/ch30/pe56/ed1ch30pe56.mp4 182 10 5 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hydroelectric-power-facility-see-figure-737-converts-gravitational-potential A hydroelectric power facility (see Figure 7.37) converts the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe16/thumbs-ed1ch07pe16-00002.png A hydroelectric power facility (see Figure 7.37) converts the gravitational potential energy of water behind a dam to electric energy. (a) What is the gravitational potential energy relative to the generators of a lake of volume 50.0 km ^3 ( mass = 5.00 x 10^{13} kg ), given that the lake has an average height of 40.0 m above the generators? (b) Compare this with the energy stored in a 9-megaton fusion bomb. https://seo-videos.collegephysicsanswers.com/ch07/pe16/ed1ch07pe16.mp4 86 913 3.6 2019-10-02 yes 2019-10-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particles-called-muons-exist-cosmic-rays-and-can-be-created-particle Particles called muons exist in cosmic rays and can be created in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe60/thumbs-ed1ch30pe60-00002.png Particles called muons exist in cosmic rays and can be created in particle accelerators. Muons are very similar to electrons, having the same charge and spin, but they have a mass 207 times greater. When muons are captured by an atom, they orbit just like an electron but with a smaller radius, since the mass in a_ B = \dfrac{h^2}{4\pi^2m_ekq_e^2} = 0.529 x 10^{-10} m is 207m_e. (a) Calculate the radius of the n=1 orbit for a muon in a uranium ion (Z = 92). (b) Compare this with the 7.5-fm radius of a uranium nucleus. Note that since the muon orbits inside the electron, it falls into a hydrogen-like orbit. Since your answer is less than the radius of the nucleus, you can see that the photons emitted as the muon falls into its lowest orbit can give information about the nucleus. https://seo-videos.collegephysicsanswers.com/ch30/pe60/ed1ch30pe60.mp4 187 8 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/farmer-making-grape-juice-fills-glass-bottle-brim-and-caps-it-tightly-juice A farmer making grape juice fills a glass bottle to the brim and caps… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe41/thumbs-ed1ch05pe41-00002.png A farmer making grape juice fills a glass bottle to the brim and caps it tightly. The juice expands more than the glass when it warms up, in such a way that the volume increases by 0.2% (that is, \dfrac{\Delta V}{V_o} = 2 x 10^{-3}) relative to the space available. Calculate the magnitude of the normal force exerted by the juice per square centimeter if its bulk modulus is 1.8 x 10^9 N/m ^2, assuming the bottle does not break. In view of your answer, do you think the bottle will survive? https://seo-videos.collegephysicsanswers.com/ch05/pe41/ed1ch05pe41.mp4 133 489 4.8 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/semi-trailer-trucks-have-odometer-one-hub-trailer-wheel-hub-weighted-so-it-does Semi-trailer trucks have an odometer on one hub of a trailer wheel.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe01/thumbs-ed1ch06pe01-00002.png Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it contains gears to count the number of wheel revolutions—it then calculates the distance traveled. If the wheel has a 1.15 m diameter and goes through 200,000 rotations, how many kilometers should the odometer read? https://d1igkeoc1zsqhw.cloudfront.net/ch06/pe01/ed1ch06pe01.mp4 89 1091 4.2 2018-03-13 no 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/automobile-0260-m-radius-tires-travels-80000-km-wearing-them-out-how-many An automobile with 0.260 m radius tires travels 80,000 km before… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe03/thumbs-ed1ch06pe03-00002.png An automobile with 0.260 m radius tires travels 80,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear? https://seo-videos.collegephysicsanswers.com/ch06/pe03/ed1ch06pe03.mp4 75 674 4.2 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-spectroscopic-notations-are-not-allowed-5s1-b-1d1-c-4s3-d-3p7-e Which of the following spectroscopic notations are not allowed? (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe48/thumbs-ed1ch30pe48-00002.png Which of the following spectroscopic notations are not allowed? (a) 5s^1 (b) 1d^1 (c) 4s^3 (d) 3p^7 (e) 5g^{15}. State which rule is violated for each that is not allowed. https://seo-videos.collegephysicsanswers.com/ch30/pe48/ed1ch30pe48.mp4 273 55 5 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/baseball-pitcher-brings-his-arm-forward-during-pitch-rotating-forearm-about A baseball pitcher brings his arm forward during a pitch, rotating… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe05/thumbs-ed1ch06pe05-00002.png A baseball pitcher brings his arm forward during a pitch, rotating the forearm about the elbow. If the velocity of the ball in the pitcher's hand is 35.0 m/s and the ball is 0.300 m from the elbow joint, what is the angular velocity of the forearm? https://seo-videos.collegephysicsanswers.com/ch06/pe05/ed1ch06pe05.mp4 36 620 5 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-voltage-must-be-applied-x-ray-tube-obtain-00100-fm-wavelength-x-rays-use (a) What voltage must be applied to an X-ray tube to obtain… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe68/thumbs-ed1ch30pe68-00002.png (a) What voltage must be applied to an X-ray tube to obtain 0.0100-fm-wavelength X-rays for use in exploring the details of nuclei? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch30/pe68/ed1ch30pe68.mp4 144 6 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/truck-0420-m-radius-tires-travels-320-ms-what-angular-velocity-rotating-tires A truck with 0.420-m-radius tires travels at 32.0 m/s. What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe07/thumbs-ed1ch06pe07-00002.png A truck with 0.420-m-radius tires travels at 32.0 m/s. What is the angular velocity of the rotating tires in radians per second? What is this in rev/min? https://seo-videos.collegephysicsanswers.com/ch06/pe07/ed1ch06pe07.mp4 66 627 4.5 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-force-needed-bring-950-kg-car-rest-speed-900-kmh-distance-120-m-fairly (a) Calculate the force needed to bring a 950-kg car to rest from a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe12/thumbs-ed1ch07pe12-00002.png (a) Calculate the force needed to bring a 950-kg car to rest from a speed of 90.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a). https://seo-videos.collegephysicsanswers.com/ch07/pe12/ed1ch07pe12.mp4 202 1639 4.6 2019-10-02 yes 2019-10-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-what-force-must-be-supplied-elevator-cable-produce Integrated Concepts: (a) What force must be supplied by an elevator… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe64/thumbs-ed1ch07pe64-00002.png Integrated Concepts: (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s ^2 against a 200-N frictional force, if the mass of the loaded elevator is 1500 kg? (b) How much work is done by the cable in lifting the elevator 20.0 m? (c) What is the final speed of the elevator if it starts from rest? (d) How much work went into thermal energy? https://seo-videos.collegephysicsanswers.com/ch07/pe64/ed1ch07pe64.mp4 300 125 5 2019-10-02 yes 2019-10-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/carbon-dioxide-laser-used-surgery-emits-infrared-radiation-wavelength-106textrm A carbon dioxide laser used in surgery emits infrared radiation with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe62/thumbs-ed1ch30pe62-00002.png A carbon dioxide laser used in surgery emits infrared radiation with a wavelength of 10.6 \mu m . In 1.00 ms this laser raised the temperature of 1.00 cm ^3 of flesh to 100° C and evaporated it. (a) How many photons were required? You may assume flesh has the same heat of vaporization as water. (b) What was the minimum power output during the flash? https://seo-videos.collegephysicsanswers.com/ch30/pe62/ed1ch30pe62.mp4 280 12 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pulsar-rapidly-spinning-remnant-supernova-it-rotates-its-axis-sweeping-hydrogen A pulsar is a rapidly spinning remnant of a supernova. It rotates on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe66/thumbs-ed1ch30pe66-00002.png A pulsar is a rapidly spinning remnant of a supernova. It rotates on its axis, sweeping hydrogen along with it so that hydrogen on one side moves toward us as fast as 50.0 km/s, while that on the other side moves away as fast as 50.0 km/s. This means that the EM radiation we receive will be Doppler shifted over a range of ± 50.0 km/s . What range of wavelengths will we observe for the 91.20-nm line in the Lyman series of hydrogen? (Such line broadening is observed and actually provides part of the evidence for rapid rotation.) https://seo-videos.collegephysicsanswers.com/ch30/pe66/ed1ch30pe66.mp4 174 4 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/runner-taking-part-200-m-dash-must-run-around-end-track-has-circular-arc-radius A runner taking part in the 200 m dash must run around the end of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe11/thumbs-ed1ch06pe11-00002.png A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 30 m. If he completes the 200 m dash in 23.2 s and runs at constant speed throughout the race, what is the magnitude of his centripetal acceleration as he runs the curved portion of the track? https://seo-videos.collegephysicsanswers.com/ch06/pe11/ed1ch06pe11.mp4 95 1310 4.6 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-pauli-exclusion-principle-and-rules-relating-allowed-values-quantum (a) Using the Pauli exclusion principle and the rules relating the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe50/thumbs-ed1ch30pe50-00002.png (a) Using the Pauli exclusion principle and the rules relating the allowed values of the quantum numbers (n, l, m_l, m_s), prove that the maximum number of electrons in a subshell is 2(2l+1). (b) In a similar manner, prove that the maximum number of electrons in a shell is 2n^2. https://seo-videos.collegephysicsanswers.com/ch30/pe50/ed1ch30pe50.mp4 410 17 5 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/galaxy-moving-away-earth-has-speed-00100c-what-wavelength-do-we-observe-ni-7-nf A galaxy moving away from the earth has a speed of 0.0100c . What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe54/thumbs-ed1ch30pe54-00002.png A galaxy moving away from the earth has a speed of 0.0100c . What wavelength do we observe for an n_i = 7 to n_f = 2 transition for hydrogen in that galaxy? https://seo-videos.collegephysicsanswers.com/ch30/pe54/ed1ch30pe54.mp4 133 20 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/helicopter-blades-withstand-tremendous-stresses-addition-supporting-weight Helicopter blades withstand tremendous stresses. In addition to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe15/thumbs-ed1ch06pe15-00002.png Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip.(a) Calculate the magnitude of the centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 300 rev/min. (b) Compare the linear speed of the tip with the speed of sound (taken to be 340 m/s). https://seo-videos.collegephysicsanswers.com/ch06/pe15/ed1ch06pe15.mp4 113 727 4.7 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-ski-patrol-lowers-rescue-sled-and-victim-having-total-mass-900-kg-down Suppose the ski patrol lowers a rescue sled and victim, having a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe08/ed1ch07pe08b-thumbnail.jpg Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60° slope at constant speed, as shown in Figure 7.36. The coefficient of friction between the sled and the snow is 0.100. (a) How much work is done by friction as the sled moves 30.0 m along the hill? (b) How much work is done by the rope on the sled in this distance? (c) What is the work done by the gravitational force on the sled? (d) What is the total work done? https://seo-videos.collegephysicsanswers.com/ch07/pe08/ed1ch07pe08b.mp4 773 1355 3.3 2023-12-19 yes 2023-12-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-will-average-kinetic-energy-gas-molecule-change-if-its-temperature-increased How will the average kinetic energy of a gas molecule change if its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap04/thumbs-ed1ch13ap04-00002.png How will the average kinetic energy of a gas molecule change if its temperature is increased from 20° C to 313° C ? (a) It will become sixteen times its original value.(b) It will become four times its original value(c) It will become double its original value(d) It will remain unchanged. https://seo-videos.collegephysicsanswers.com/ch13/ap04/ed1ch13ap04.mp4 64 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/220-kg-child-riding-playground-merry-go-round-rotating-400-revmin-what (a) A 22.0 kg child is riding a playground merry-go-round that is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe23/thumbs-ed1ch06pe23-00002.png (a) A 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What centripetal force must she exert to stay on if she is 1.25 m from its center? (b) What centripetal force does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 8.00 m from its center? (c) Compare each force with her weight. https://seo-videos.collegephysicsanswers.com/ch06/pe23/ed1ch06pe23.mp4 124 1444 3.9 2018-03-14 yes 2018-03-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-clay-model-koala-bear-has-mass-0200-kg-and-slides-ice-speed-0750-ms-it Suppose a clay model of a koala bear has a mass of 0.200 kg and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe24/thumbs-ed1ch08pe24-00002.png Suppose a clay model of a koala bear has a mass of 0.200 kg and slides on ice at a speed of 0.750 m/s. It runs into another clay model, which is initially motionless and has a mass of 0.350 kg. Both being soft clay, they naturally stick together. What is their final velocity? https://seo-videos.collegephysicsanswers.com/ch08/pe24/ed1ch08pe24.mp4 111 1079 4.9 2019-10-02 yes 2019-10-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ideal-banking-angle-gentle-turn-120-km-radius-highway-105-kmh-speed-limit What is the ideal banking angle for a gentle turn of 1.20 km radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe25/thumbs-ed1ch06pe25-00002.png What is the ideal banking angle for a gentle turn of 1.20 km radius on a highway with a 105 km/h speed limit (about 65 mi/h), assuming everyone travels at the limit? https://seo-videos.collegephysicsanswers.com/ch06/pe25/ed1ch06pe25.mp4 225 1126 4.4 2018-03-14 yes 2018-03-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/riders-amusement-park-ride-shaped-viking-ship-hung-large-pivot-are-rotated-back Riders in an amusement park ride shaped like a Viking ship hung from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe21/thumbs-ed1ch06pe21-00002.png Riders in an amusement park ride shaped like a Viking ship hung from a large pivot are rotated back and forth like a rigid pendulum. Sometime near the middle of the ride, the ship is momentarily motionless at the top of its circular arc. The ship then swings down under the influence of gravity.(a) Assuming negligible friction, find the speed of the riders at the bottom of its arc, given the system's center of mass travels in an arc having a radius of 14.0 m and the riders are near the center of mass. (b) What is the centripetal acceleration at the bottom of the arc? (c) Draw a free body diagram of the forces acting on a rider at the bottom of the arc. (d) Find the force exerted by the ride on a 60.0 kg rider and compare it to her weight. (e) Discuss whether the answer seems reasonable. https://seo-videos.collegephysicsanswers.com/ch06/pe21/ed1ch06pe21.mp4 307 386 3.8 2018-03-14 yes 2018-03-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-hazard-space-travel-debris-left-previous-missions-there-are-several-thousand One hazard of space travel is debris left by previous missions. There… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe12/thumbs-ed1ch08pe12-00002.png One hazard of space travel is debris left by previous missions. There are several thousand objects orbiting Earth that are large enough to be detected by radar, but there are far greater numbers of very small objects, such as flakes of paint. Calculate the force exerted by a 0.100-mg chip of paint that strikes a spacecraft window at a relative speed of 4.00 x 10^{3} m/s , given the collision lasts 6.00 x 10^{-8} s . https://seo-videos.collegephysicsanswers.com/ch08/pe12/ed1ch08pe12.mp4 121 380 2.5 2019-10-02 yes 2019-10-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/modern-roller-coasters-have-vertical-loops-one-shown-figure-638-radius-curvature Modern roller coasters have vertical loops like the one shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe31/thumbs-ed1ch06pe31-00002.png Modern roller coasters have vertical loops like the one shown in Figure 6.38. The radius of curvature is smaller at the top than on the sides so that the downward centripetal acceleration at the top will be greater than the acceleration due to gravity, keeping the passengers pressed firmly into their seats. What is the speed of the roller coaster at the top of the loop if the radius of curvature there is 15.0 m and the downward acceleration of the car is 1.50 g? https://seo-videos.collegephysicsanswers.com/ch06/pe31/ed1ch06pe31.mp4 36 460 5 2018-03-14 yes 2018-03-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-earths-mass-given-acceleration-due-gravity-north-pole-9830-ms2-and (a) Calculate Earth's mass given the acceleration due to gravity at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe33/thumbs-ed1ch06pe33-00002.png (a) Calculate Earth's mass given the acceleration due to gravity at the North Pole is 9.830 m/s ^2 and the radius of the Earth is 6371 km from center to pole. (b) Compare this with the accepted value of 5.979 x 10^{24} kg . https://seo-videos.collegephysicsanswers.com/ch06/pe33/ed1ch06pe33.mp4 119 866 5 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/560-g-squirrel-surface-area-930-cm2-falls-50-m-tree-ground-estimate-its-terminal A 560 g squirrel with a surface area of 930 cm ^2 falls from a 5.0-m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe22/thumbs-ed1ch05pe22-00002.png A 560 g squirrel with a surface area of 930 cm ^2 falls from a 5.0-m tree to the ground. Estimate its terminal velocity. (Use a drag coefficient for a horizontal skydiver.) What will be the velocity of a 56-kg person hitting the ground, assuming no drag contribution in such a short distance? https://seo-videos.collegephysicsanswers.com/ch05/pe22/ed1ch05pe22.mp4 322 927 3.1 2019-10-07 yes 2019-10-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-walk-180-m-straight-west-and-then-250-m-straight-north-how-far-are Suppose you walk 18.0 m straight west and then 25.0 m straight north.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe04/thumbs-ed1ch03pe04-00002.png Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements \vec{A} and \vec{B} , as in Figure 3.53, then this problem asks you to find their sum \vec{R} = \vec{A} + \vec{B} .) https://seo-videos.collegephysicsanswers.com/ch03/pe04/ed1ch03pe04.mp4 125 981 4.3 2019-10-09 yes 2019-10-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/moon-and-earth-rotate-about-their-common-center-mass-which-located-about-4700-km The Moon and Earth rotate about their common center of mass, which is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe37/thumbs-ed1ch06pe37-00002.png The Moon and Earth rotate about their common center of mass, which is located about 4700 km from the center of Earth. (This is 1690 km below the surface.)(a) Calculate the magnitude of the acceleration due to the Moon's gravity at that point.(b) Calculate the magnitude of the centripetal acceleration of the center of Earth as it rotates about that point once each lunar month (about 27.3 d) and compare it with the acceleration found in part (a). Comment on whether or not they are equal and why they should or should not be. https://seo-videos.collegephysicsanswers.com/ch06/pe37/ed1ch06pe37.mp4 264 575 3.8 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/astrology-unlikely-and-vague-pseudoscience-makes-much-position-planets-moment Astrology, that unlikely and vague pseudoscience, makes much of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe39/thumbs-ed1ch06pe39-00002.png Astrology, that unlikely and vague pseudoscience, makes much of the position of the planets at the moment of one's birth. The only known force a planet exerts on Earth is gravitational.(a) Calculate the magnitude of the gravitational force exerted on a 4.20 kg baby by a 100 kg father 0.200 m away at birth (he is assisting, so he is close to the child).(b) Calculate the magnitude of the force on the baby due to Jupiter if it is at its closest distance to Earth, some 6.29 x 10^{11} m away. How does the force of Jupiter on the baby compare to the force of the father on the baby? Other objects in the room and the hospital building also exert similar gravitational forces. (Of course, there could be an unknown force acting, but scientists first need to be convinced that there is even an effect, much less that an unknown force causes it.) https://seo-videos.collegephysicsanswers.com/ch06/pe39/ed1ch06pe39.mp4 96 561 4.2 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sun-orbits-milky-way-galaxy-once-each-260-times-108-y-roughly-circular-orbit (a) The Sun orbits the Milky Way galaxy once each 2.60 x 10^8 y ,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe41/thumbs-ed1ch06pe41-00002.png (a) The Sun orbits the Milky Way galaxy once each 2.60 x 10^8 y , with a roughly circular orbit averaging 3.00 x 10^4 light years in radius. (A light year is the distance traveled by light in 1 y.) Calculate the centripetal acceleration of the Sun in its galactic orbit. Does your result support the contention that a nearly inertial frame of reference can be located at the Sun?(b) Calculate the average speed of the Sun in its galactic orbit. Does the answer surprise you? https://seo-videos.collegephysicsanswers.com/ch06/pe41/ed1ch06pe41.mp4 151 361 4.5 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/astronomical-observations-our-milky-way-galaxy-indicate-it-has-mass-about-80 Astronomical observations of our Milky Way galaxy indicate that it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe47/thumbs-ed1ch06pe47-00002.png Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 10^{11} solar masses. A star orbiting on the galaxy's periphery is about 6.0 x 10^4 light years from its center. (a) What should the orbital period of that star be? (b) If its period is 6.0 x 10^7 y instead, what is the mass of the galaxy? Such calculations are used to imply the existence of “dark matter” in the universe and have indicated, for example, the existence of very massive black holes at the centers of some galaxies. https://seo-videos.collegephysicsanswers.com/ch06/pe47/ed1ch06pe47.mp4 458 346 4 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-work-does-supermarket-checkout-attendant-do-can-soup-he-pushes-0600-m How much work does a supermarket checkout attendant do on a can of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe01/thumbs-ed1ch07pe01-00002.png How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 N? Express your answer in joules and kilocalories. https://d1igkeoc1zsqhw.cloudfront.net/ch07/pe01/ed1ch07pe01.mp4 38 688 3.5 2018-03-16 no 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-magnitudes-velocities-va-and-vb-figure-355 Find the magnitudes of velocities v_A and v_B in Figure 3.55. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe10/thumbs-ed1ch03pe10-00002.png Find the magnitudes of velocities v_A and v_B in Figure 3.55. https://seo-videos.collegephysicsanswers.com/ch03/pe10/ed1ch03pe10.mp4 139 1317 4.5 2019-10-09 yes 2019-10-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-radius-238textrmpu-nucleus-238textrmpu-manufactured-nuclide-used-power Find the radius of a ^{238} Pu nucleus. ^{238} Pu is a manufactured… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe08/thumbs-ed1ch31pe08-00002.png Find the radius of a ^{238} Pu nucleus. ^{238} Pu is a manufactured nuclide that is used as a power source on some space probes. https://seo-videos.collegephysicsanswers.com/ch31/pe08/ed1ch31pe08.mp4 29 51 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-b-figure-352-total-distance-traveled-and-b-magnitude-and Find the following for path B in Figure 3.52: (a) the total distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe02/thumbs-ed1ch03pe02-00002.png Find the following for path B in Figure 3.52: (a) the total distance traveled, and (b) the magnitude and direction of the displacement from start to finish. https://seo-videos.collegephysicsanswers.com/ch03/pe02/ed1ch03pe02.mp4 179 716 3.8 2019-10-09 yes 2019-10-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-order-addition-three-vectors-does-not-affect-their-sum-show-property Show that the order of addition of three vectors does not affect… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe08/thumbs-ed1ch03pe08-00002.png Show that the order of addition of three vectors does not affect their sum. Show this property by choosing any three vectors \vec{A} , \vec{B} , and \vec{C} , all having different lengths and directions. Find the sum \vec{A} + \vec{B} + \vec{C} then find their sum when added in a different order and show the result is the same. (There are five other orders in which \vec{A} , \vec{B} , and \vec{C} can be added; choose only one.) https://seo-videos.collegephysicsanswers.com/ch03/pe08/ed1ch03pe08.mp4 208 210 4 2019-10-09 yes 2019-10-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-work-done-1500-kg-elevator-car-its-cable-lift-it-400-m-constant-speed (a) Calculate the work done on a 1500-kg elevator car by its cable to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe03/thumbs-ed1ch07pe03-00002.png (a) Calculate the work done on a 1500-kg elevator car by its cable to lift it 40.0 m at constant speed, assuming friction averages 100 N. (b) What is the work done on the lift by the gravitational force in this process? (c) What is the total work done on the lift? https://seo-videos.collegephysicsanswers.com/ch07/pe03/ed1ch07pe03.mp4 110 1648 3.6 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-problem-above-reverse-order-two-legs-walk-show-you-get-same-final-result Repeat the problem above, but reverse the order of the two legs of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe06/ed1ch03pe06c-thumbnail.jpg Repeat the problem above, but reverse the order of the two legs of the walk; show that you get the same final result. That is, you first walk leg \vec{B} , which is 20.0 m in a direction exactly 40° south of west, and then leg \vec{A}, which is 12.0 m in a direction exactly 20° west of north. (This problem shows that \vec{A} + \vec{B} = \vec{B} + \vec{A} .) https://seo-videos.collegephysicsanswers.com/ch03/pe06/ed1ch03pe06c.mp4 400 615 3.8 2023-11-02 yes 2023-11-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/solve-following-problem-using-analytical-techniques-suppose-you-walk-180-m Solve the following problem using analytical techniques: Suppose you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe16/thumbs-ed1ch03pe16-00002.png Solve the following problem using analytical techniques: Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements \vec{A} and \vec{B} ,as in Figure 3.58, then this problem asks you to find their sum \vec{R} = \vec{A} + \vec{B}.) https://seo-videos.collegephysicsanswers.com/ch03/pe16/ed1ch03pe16.mp4 99 750 5 2019-10-16 yes 2019-10-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-drive-750-km-straight-line-direction-15circ-east-north-find-distances-you You drive 7.50 km in a straight line in a direction 15° east of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe18/thumbs-ed1ch03pe18-00002.png You drive 7.50 km in a straight line in a direction 15° east of north. (a) Find the distances you would have to drive straight east and then straight north to arrive at the same point. (This determination is equivalent to find the components of the displacement along the east and north directions.) (b) Show that you still arrive at the same point if the east and north legs are reversed in order. https://seo-videos.collegephysicsanswers.com/ch03/pe18/ed1ch03pe18.mp4 154 826 4.6 2019-10-16 yes 2019-10-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-work-done-850-kg-man-who-pushes-crate-400-m-along-ramp-makes-angle Calculate the work done by an 85.0-kg man who pushes a crate 4.00 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe05/thumbs-ed1ch07pe05-00002.png Calculate the work done by an 85.0-kg man who pushes a crate 4.00 m up along a ramp that makes an angle of 20° with the horizontal. (See Figure 7.34.) He exerts a force of 500 N on the crate parallel to the ramp and moves at a constant speed. Be certain to include the work he does on the crate and on his body to get up the ramp. https://seo-videos.collegephysicsanswers.com/ch07/pe05/ed1ch07pe05.mp4 76 1719 4.6 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-following-path-d-figure-356-total-distance-traveled-and-b-magnitude-and Find the following for path D in Figure 3.56: (a) the total distance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe14/thumbs-ed1ch03pe14-00002.png Find the following for path D in Figure 3.56: (a) the total distance traveled and (b) the magnitude and direction of the displacement from start to finish. In this part of the problem, explicitly show how you follow the steps of the analytical method of vector addition. https://seo-videos.collegephysicsanswers.com/ch03/pe14/ed1ch03pe14.mp4 194 678 4.7 2019-10-16 yes 2019-10-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/shopper-pushes-grocery-cart-200-m-constant-speed-level-ground-against-350-n A shopper pushes a grocery cart 20.0 m at constant speed on level… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe07/thumbs-ed1ch07pe07-00002.png A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 25.0° below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the gravitational force? (c) What is the work done on the cart by the shopper? (d) Find the force the shopper exerts, using energy considerations. (e) What is the total work done on the cart? https://seo-videos.collegephysicsanswers.com/ch07/pe07/ed1ch07pe07.mp4 253 1437 3.8 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-ideal-black-body-radiators-have-temperatures-275-k-and-1100-k-rate-heat Two ideal, black-body radiators have temperatures of 275 K and 1100… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap09/thumbs-ed1ch14ap09-00002.png Two ideal, black-body radiators have temperatures of 275 K and 1100 K. The rate of heat transfer from the latter radiator is how many times greater than the rate of the former radiator? (a) 4(b) 16(c) 64(d) 256 https://seo-videos.collegephysicsanswers.com/ch14/ap09/ed1ch14ap09.mp4 54 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/compare-kinetic-energy-20000-kg-truck-moving-110-kmh-800-kg-astronaut-orbit Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe09/thumbs-ed1ch07pe09-00002.png Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut in orbit moving at 27,500 km/h. https://seo-videos.collegephysicsanswers.com/ch07/pe09/ed1ch07pe09.mp4 104 1243 3.4 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/new-landowner-has-triangular-piece-flat-land-she-wishes-fence-starting-west A new landowner has a triangular piece of flat land she wishes to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe20/thumbs-ed1ch03pe20-00002.png A new landowner has a triangular piece of flat land she wishes to fence. Starting at the west corner, she measures the first side to be 80.0 m long and the next to be 105 m. These sides are represented as displacement vectors A from B in Figure 3.59. She then correctly calculates the length and orientation of the third side C . What is her result? https://seo-videos.collegephysicsanswers.com/ch03/pe20/ed1ch03pe20.mp4 358 1212 3.5 2019-10-16 yes 2019-10-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cars-bumper-designed-withstand-40-kmh-11-ms-collision-immovable-object-without A car’s bumper is designed to withstand a 4.0-km/h (1.1-m/s)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe13/thumbs-ed1ch07pe13-00002.png A car’s bumper is designed to withstand a 4.0-km/h (1.1-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.200 m while bringing a 900-kg car to rest from an initial speed of 1.1 m/s. https://seo-videos.collegephysicsanswers.com/ch07/pe13/ed1ch07pe13.mp4 139 1144 4.2 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/farmer-wants-fence-his-four-sided-plot-flat-land-he-measures-first-three-sides-0 A farmer wants to fence off his four-sided plot of flat land. He… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe22/thumbs-ed1ch03pe22-00002.png A farmer wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as \vec{A}, \vec{B}, and \vec{C} in Figure 3.60, and then correctly calculates the length and orientation of the fourth side \vec{D} . What is his result? https://seo-videos.collegephysicsanswers.com/ch03/pe22/ed1ch03pe22.mp4 462 564 3.7 2019-10-21 yes 2019-10-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/world-long-jump-record-895-m-mike-powell-usa-1991-treated-projectile-what The world long jump record is 8.95 m (Mike Powell, USA, 1991).… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe36/thumbs-ed1ch03pe36-00002.png The world long jump record is 8.95 m (Mike Powell, USA, 1991). Treated as a projectile, what is the maximum range obtainable by a person if he has a take-off speed of 9.5 m/s? State your assumptions. https://seo-videos.collegephysicsanswers.com/ch03/pe36/ed1ch03pe36.mp4 61 388 5 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-gravitational-potential-energy-relative-ground-which-it-built-stored (a) How much gravitational potential energy (relative to the ground… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe17/thumbs-ed1ch07pe17-00002.png (a) How much gravitational potential energy (relative to the ground on which it is built) is stored in the Great Pyramid of Cheops, given that its mass is about 7 x 10^9 kg and its center of mass is 36.5 m above the surrounding ground? (b) How does this energy compare with the daily food intake of a person? https://seo-videos.collegephysicsanswers.com/ch07/pe17/ed1ch07pe17.mp4 120 732 4.1 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/example-77-we-found-speed-roller-coaster-had-descended-200-m-was-only-slightly In Example 7.7, we found that the speed of a roller coaster that had… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe19/thumbs-ed1ch07pe19-00002.png In Example 7.7, we found that the speed of a roller coaster that had descended 20.0 m was only slightly greater when it had an initial speed of 5.00 m/s than when it started from rest. This implies that \Delta PE > KE_i . Confirm this statement by taking the ratio of \Delta PE to KE_i. (Note that mass cancels.) https://seo-videos.collegephysicsanswers.com/ch07/pe19/ed1ch07pe19.mp4 84 172 5 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/downhill-ski-race-surprisingly-little-advantage-gained-getting-running-start In a downhill ski race, surprisingly, little advantage is gained by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe21/thumbs-ed1ch07pe21-00002.png In a downhill ski race, surprisingly, little advantage is gained by getting a running start. (This is because the initial kinetic energy is small compared with the gain in gravitational potential energy on even small hills.) To demonstrate this, find the final speed and the time taken for a skier who skies 70.0 m along a 30° slope neglecting friction: (a) Starting from rest. (b) Starting with an initial speed of 2.50 m/s. (c) Does the answer surprise you? Discuss why it is still advantageous to get a running start in very competitive events. https://seo-videos.collegephysicsanswers.com/ch07/pe21/ed1ch07pe21.mp4 267 840 4.2 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pogo-stick-has-spring-force-constant-250-times-104-nm-which-can-be-compressed A pogo stick has a spring with a force constant of 2.50 x 10^4 N/m ,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe23/thumbs-ed1ch07pe23-00002.png A pogo stick has a spring with a force constant of 2.50 x 10^4 N/m , which can be compressed 12.0 cm. To what maximum height can a child jump on the stick using only the energy in the spring, if the child and stick have a total mass of 40.0 kg? Explicitly show how you follow the steps in the Problem-Solving Strategies for Energy. https://seo-videos.collegephysicsanswers.com/ch07/pe23/ed1ch07pe23.mp4 105 594 4.6 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-high-hill-can-car-coast-engine-disengaged-if-work-done-friction-negligible (a) How high a hill can a car coast up (engine disengaged) if work… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe25/thumbs-ed1ch07pe25-00002.png (a) How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 110 km/h? (b) If, in actuality, a 750-kg car with an initial speed of 110 km/h is observed to coast up a hill to a height 22.0 m above its starting point, how much thermal energy was generated by friction? (c) What is the average force of friction if the hill has a slope 2.5° above the horizontal? https://seo-videos.collegephysicsanswers.com/ch07/pe25/ed1ch07pe25.mp4 329 1139 4 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/daredevil-attempting-jump-his-motorcycle-over-line-buses-parked-end-end-driving (a) A daredevil is attempting to jump his motorcycle over a line of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe28/thumbs-ed1ch03pe28-00002.png (a) A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp at a speed of 40.0 m/s (144 km/h) . How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and the buses are 20.0 m long? (b) Discuss what your answer implies about the margin of error in this act—that is, consider how much greater the range is than the horizontal distance he must travel to miss the end of the last bus. (Neglect air resistance.) https://seo-videos.collegephysicsanswers.com/ch03/pe28/ed1ch03pe28.mp4 241 883 4.3 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-constant-amplitude-sustained-forced-oscillations How is constant amplitude sustained in forced oscillations? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap18/thumbs-ed1ch16ap18-00002.png How is constant amplitude sustained in forced oscillations? https://seo-videos.collegephysicsanswers.com/ch16/ap18/ed1ch16ap18.mp4 40 4 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-length-side-cube-having-mass-10-kg-and-density-nuclear-matter-taking-be Find the length of a side of a cube having a mass of 1.0 kg and the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe06/thumbs-ed1ch31pe06-00002.png Find the length of a side of a cube having a mass of 1.0 kg and the density of nuclear matter, taking this to be 2.3 x 10^{17} kg/m ^3. https://seo-videos.collegephysicsanswers.com/ch31/pe06/ed1ch31pe06.mp4 62 78 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-kicked-initial-velocity-16-ms-horizontal-direction-and-12-ms-vertical A ball is kicked with an initial velocity of 16 m/s in the horizontal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe26/thumbs-ed1ch03pe26-00002.png A ball is kicked with an initial velocity of 16 m/s in the horizontal direction and 12 m/s in the vertical direction. (a) At what speed does the ball hit the ground? (b) For how long does the ball remain in the air? (c)What maximum height is attained by the ball? https://seo-videos.collegephysicsanswers.com/ch03/pe26/ed1ch03pe26.mp4 267 1564 4.1 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-energy-considerations-and-assuming-negligible-air-resistance-show-rock Using energy considerations and assuming negligible air resistance,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe27/thumbs-ed1ch07pe27-00002.png Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 m above water with an initial speed of 15.0 m/s strikes the water with a speed of 24.8 m/s independent of the direction thrown. https://seo-videos.collegephysicsanswers.com/ch07/pe27/ed1ch07pe27.mp4 102 1269 4.8 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-cost-operating-300-w-electric-clock-year-if-cost-electricity-00900-kw-cdot What is the cost of operating a 3.00-W electric clock for a year if… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe33/thumbs-ed1ch07pe33-00002.png What is the cost of operating a 3.00-W electric clock for a year if the cost of electricity is \$0.0900 per kW \cdot h ? https://seo-videos.collegephysicsanswers.com/ch07/pe33/ed1ch07pe33.mp4 97 428 4.5 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-can-you-play-tennis-800-kj-about-200-kcal-energy-candy-bar-b-does-seem (a) How long can you play tennis on the 800 kJ (about 200 kcal) of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe59/thumbs-ed1ch07pe59-00002.png (a) How long can you play tennis on the 800 kJ (about 200 kcal) of energy in a candy bar? (b) Does this seem like a long time? Discuss why exercise is necessary but may not be sufficient to cause a person to lose weight. https://seo-videos.collegephysicsanswers.com/ch07/pe59/ed1ch07pe59.mp4 81 187 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-would-it-take-150-times-105-kg-airplane-engines-produce-100-mw-power (a) How long would it take a 1.50 x 10^5-kg airplane with engines… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe41/thumbs-ed1ch07pe41-00002.png (a) How long would it take a 1.50 x 10^5-kg airplane with engines that produce 100 MW of power to reach a speed of 250 m/s and an altitude of 12.0 km if air resistance were negligible? (b) If it actually takes 900 s, what is the power? (c) Given this power, what is the average force of air resistance if the airplane takes 1200 s? (Hint: You must find the distance the plane travels in 1200 s assuming constant acceleration.) https://seo-videos.collegephysicsanswers.com/ch07/pe41/ed1ch07pe41.mp4 449 149 3.8 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-data-table-75-calculate-daily-energy-needs-person-who-sleeps-700-h-walks Using data from Table 7.5, calculate the daily energy needs of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe49/thumbs-ed1ch07pe49-00002.png Using data from Table 7.5, calculate the daily energy needs of a person who sleeps for 7.00 h, walks for 2.00 h, attends classes for 4.00 h, cycles for 2.00 h, sits relaxed for 3.00 h, and studies for 6.00 h. (Studying consumes energy at the same rate as sitting in class.) https://seo-videos.collegephysicsanswers.com/ch07/pe49/ed1ch07pe49.mp4 126 222 5 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-kinetic-energy-mev-beta-ray-traveling-0998c-gives-some-idea-how-energetic (a) What is the kinetic energy in MeV of a \beta ray that is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe16/thumbs-ed1ch31pe16-00002.png (a) What is the kinetic energy in MeV of a \beta ray that is traveling at 0.998c ? This gives some idea of how energetic a \beta ray must be to travel at nearly the same speed as a \gamma ray. (b) What is the velocity of the \gamma ray relative to the \beta ray? https://seo-videos.collegephysicsanswers.com/ch31/pe16/ed1ch31pe16.mp4 87 50 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-child-drives-bumper-car-head-side-rail-which-exerts-force-4000-n-car Suppose a child drives a bumper car head on into the side rail, which… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe11/thumbs-ed1ch08pe11-00002.png Suppose a child drives a bumper car head on into the side rail, which exerts a force of 4000 N on the car for 0.200 s. (a) What impulse is imparted by this force? (b) Find the final velocity of the bumper car if its initial velocity was 2.80 m/s and the car plus driver have a mass of 200 kg. You may neglect friction between the car and floor. https://seo-videos.collegephysicsanswers.com/ch08/pe11/ed1ch08pe11.mp4 117 773 3.7 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rugby-player-passes-ball-700-m-across-field-where-it-caught-same-height-it-left A rugby player passes the ball 7.00 m across the field, where it is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe30/thumbs-ed1ch03pe30-00002.png A rugby player passes the ball 7.00 m across the field, where it is caught at the same height as it left his hand. (a) At what angle was the ball thrown if its initial speed was 12.0 m/ s, assuming that the smaller of the two possible angles was used? (b) What other angle gives the same range, and why would it not be used? (c) How long did this pass take? https://seo-videos.collegephysicsanswers.com/ch03/pe30/ed1ch03pe30.mp4 320 1126 4.6 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/football-quarterback-moving-straight-backward-speed-200-ms-when-he-throws-pass A football quarterback is moving straight backward at a speed of 2.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe38/thumbs-ed1ch03pe38-00002.png A football quarterback is moving straight backward at a speed of 2.00 m/s when he throws a pass to a player 18.0 m straight downfield. (a) If the ball is thrown at an angle of 25° relative to the ground and is caught at the same height as it is released, what is its initial speed relative to the ground? (b) How long does it take to get to the receiver? (c) What is its maximum height above its point of release? https://seo-videos.collegephysicsanswers.com/ch03/pe38/ed1ch03pe38.mp4 327 479 4.2 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/arrow-shot-height-15-m-toward-cliff-height-h-it-shot-velocity-30-ms-angle-60circ An arrow is shot from a height of 1.5 m toward a cliff of height H.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe34/thumbs-ed1ch03pe34-00002.png An arrow is shot from a height of 1.5 m toward a cliff of height H. It is shot with a velocity of 30 m/s at an angle of 60° above the horizontal. It lands on the top edge of the cliff 4.0 s later. (a) What is the height of the cliff? (b) What is the maximum height reached by the arrow along its trajectory? (c) What is the arrow's impact speed just before hitting the cliff? https://seo-videos.collegephysicsanswers.com/ch03/pe34/ed1ch03pe34.mp4 354 1326 4.8 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/750-kg-person-riding-car-moving-200-ms-when-car-runs-bridge-abutment-calculate A 75.0-kg person is riding in a car moving at 20.0 m/s when the car… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe13/thumbs-ed1ch08pe13-00002.png A 75.0-kg person is riding in a car moving at 20.0 m/s when the car runs into a bridge abutment. (a) Calculate the average force on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (b) Calculate the average force on the person if he is stopped by an air bag that compresses an average of 15.0 cm. https://seo-videos.collegephysicsanswers.com/ch08/pe13/ed1ch08pe13.mp4 138 769 3.8 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/train-cars-are-coupled-together-being-bumped-one-another-suppose-two-loaded Train cars are coupled together by being bumped into one another.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe23/thumbs-ed1ch08pe23-00002.png Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 150,000 kg and a velocity of 0.300 m/s, and the second having a mass of 110,000 kg and a velocity of -0.120 m/s . (The minus indicates direction of motion.) What is their final velocity? https://seo-videos.collegephysicsanswers.com/ch08/pe23/ed1ch08pe23.mp4 124 1049 4 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-would-200-times-10-kg-airplane-have-fly-have-momentum-160-times-109 (a) At what speed would a 2.00 x 10^ kg airplane have to fly to have… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe03/thumbs-ed1ch08pe03-00002.png (a) At what speed would a 2.00 x 10^ kg airplane have to fly to have a momentum of 1.60 x 10^9 kg m/s (the same as the ship’s momentum in the problem above)? (b) What is the plane’s momentum when it is taking off at a speed of 60.0 m/s ? (c) If the ship is an aircraft carrier that launches these airplanes with a catapult, discuss the implications of your answer to (b) as it relates to recoil effects of the catapult on the ship. https://seo-videos.collegephysicsanswers.com/ch08/pe03/ed1ch08pe03.mp4 80 420 3 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/imagine-solid-material-molecular-level-consisting-bunch-billiard-balls-connected Imagine a solid material at the molecular level as consisting of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap02/thumbs-ed1ch15ap02-00002.png Imagine a solid material at the molecular level as consisting of a bunch of billiard balls connected to each other by springs (this is actually a surprisingly useful approximation). If we have two blocks of the same material, but in one the billiard balls are shaking back and forth on their springs a great deal, and in the other they are barely moving, which block is at the higher temperature? Using what you know about conservation of momentum in collisions, describe which block will transfer energy to the other, and justify your answer. https://seo-videos.collegephysicsanswers.com/ch15/ap02/ed1ch15ap02.mp4 300 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/system-has-300-j-work-done-it-and-has-heat-transfer-320-j-compared-prior-these A system has 300 J of work done on it, and has a heat transfer of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap03/thumbs-ed1ch15ap03-00002.png A system has 300 J of work done on it, and has a heat transfer of -320 J. Compared to prior to these processes, the internal energy is: (a) 20 J less(b) 20 J more(c) 620 J more(d) 620 J less https://seo-videos.collegephysicsanswers.com/ch15/ap03/ed1ch15ap03.mp4 43 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-snack-or-drink-item-classroom-or-your-next-meal-find-total-calories Find a snack or drink item in the classroom, or at your next meal.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap04/thumbs-ed1ch15ap04-00002.png Find a snack or drink item in the classroom, or at your next meal. Find the total Calories (kilocalories) in the item, and calculate how long it would take exercising at 150 W (moderately, climbing stairs) at 20% efficiency to burn off this energy. https://seo-videos.collegephysicsanswers.com/ch15/ap04/ed1ch15ap04.mp4 94 2 2021-02-23 yes 2021-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/basketball-player-running-500-ms-directly-toward-basket-when-he-jumps-air-dunk A basketball player is running at 5.00 m/s directly toward the basket… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe46/thumbs-ed1ch03pe46-00002.png A basketball player is running at 5.00 m/s directly toward the basket when he jumps into the air to dunk the ball. He maintains his horizontal velocity. (a) What vertical velocity does he need to rise 0.750 m above the floor? (b) How far from the basket (measured in the horizontal direction) must he start his jump to reach his maximum height at the same time as he reaches the basket? https://seo-videos.collegephysicsanswers.com/ch03/pe46/ed1ch03pe46.mp4 210 888 5 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/potato-cannon-has-fuel-combusted-generating-lot-heat-and-pressure-which-launch A potato cannon has the fuel combusted, generating a lot of heat and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap05/thumbs-ed1ch15ap05-00002.png A potato cannon has the fuel combusted, generating a lot of heat and pressure, which launch a potato. The combustion process \_\_\_\_\_ the internal energy, while launching the potato \_\_\_\_\_ the internal energy of the potato cannon. (a) increases, increases(b) increases, decreases(c) decreases, increases(d) decreases, decreases https://seo-videos.collegephysicsanswers.com/ch15/ap05/ed1ch15ap05.mp4 44 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/thermodynamic-process-begins-12-times-106-nm2-and-5-l-state-then-changes-12 A thermodynamic process begins at 1.2 x 10^6 N/m ^2 and 5 L. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap09/thumbs-ed1ch15ap09-00002.png A thermodynamic process begins at 1.2 x 10^6 N/m ^2 and 5 L. The state then changes to 1.2 x 10^6 N/m ^2 and 2 L. Next it becomes 2.2 x 10^6 N/m ^2 and 2 L. The next change is 2.2 x 10^6 N/m ^2 and 5 L. Finally, the system ends at 1.0 x 10^6 N/m ^2 and 5 L. https://seo-videos.collegephysicsanswers.com/ch15/ap09/ed1ch15ap09.mp4 84 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/runaway-train-car-has-mass-15000-kg-travels-speed-54-ms-down-track-compute-time A runaway train car that has a mass of 15,000 kg travels at a speed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe05/thumbs-ed1ch08pe05-00002.png A runaway train car that has a mass of 15,000 kg travels at a speed of 5.4 m/s down a track. Compute the time required for a force of 1500 N to bring the car to rest. https://seo-videos.collegephysicsanswers.com/ch08/pe05/ed1ch08pe05.mp4 105 832 4 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1544-which-following-cycles-has-greatest-net-work-output-abda-bcdb-and-b In Figure 15.44, which of the following cycles has the greatest net… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap11/thumbs-ed1ch15ap11-00002.png In Figure 15.44, which of the following cycles has the greatest net work output? (a) ABDA(b) BCDB(c) (a) and (b) are equal(d) ADCBA https://seo-videos.collegephysicsanswers.com/ch15/ap11/ed1ch15ap11.mp4 49 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/equal-masses-steam-100-degrees-c-and-ice-0-degrees-c-are-placed-contact-each Equal masses of steam (100 degrees C) and ice (0 degrees C) are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap13/thumbs-ed1ch15ap13-00002.png Equal masses of steam (100 degrees C) and ice (0 degrees C) are placed in contact with each other in an otherwise insulated container. They both end up as liquid water at a common temperaturThe steam \_\_\_ entropy and \_\_\_ order, while the ice \_\_\_ entropy and \_\_\_ order. (a) gained, gained, lost, lost(b) gained, lost, lost, gained(c) lost, gained, gained, lost(d) lost, lost, gained, gained https://seo-videos.collegephysicsanswers.com/ch15/ap13/ed1ch15ap13.mp4 54 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bullet-accelerated-down-barrel-gun-hot-gases-produced-combustion-gun-powder-what A bullet is accelerated down the barrel of a gun by hot gases… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe07/thumbs-ed1ch08pe07-00002.png A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force exerted on a 0.0300-kg bullet to accelerate it to a speed of 600 m/s in a time of 2.00 ms (milliseconds)? https://seo-videos.collegephysicsanswers.com/ch08/pe07/ed1ch08pe07.mp4 75 989 4.8 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/eagle-flying-horizontally-speed-300-ms-when-fish-her-talons-wiggles-loose-and An eagle is flying horizontally at a speed of 3.00 m/s when the fish… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe40/thumbs-ed1ch03pe40-00002.png An eagle is flying horizontally at a speed of 3.00 m/s when the fish in her talons wiggles loose and falls into the lake 5.00 m below. Calculate the velocity of the fish relative to the water when it hits the water. https://seo-videos.collegephysicsanswers.com/ch03/pe40/ed1ch03pe40.mp4 252 922 4.9 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unreasonable-results-find-maximum-range-super-cannon-has-muzzle-velocity-40-kms Unreasonable Results (a) Find the maximum range of a super cannon… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe50/thumbs-ed1ch03pe50-00002.png Unreasonable Results (a) Find the maximum range of a super cannon that has a muzzle velocity of 4.0 km/s. (b) What is unreasonable about the range you found? (c) Is the premise unreasonable or is the available equation inapplicable? Explain your answer. (d) If such a muzzle velocity could be obtained, discuss the effects of air resistance, thinning air with altitude, and the curvature of the Earth on the range of the super cannon. https://seo-videos.collegephysicsanswers.com/ch03/pe50/ed1ch03pe50.mp4 198 103 3 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-slaps-her-leg-her-hand-bringing-her-hand-rest-250-milliseconds-initial A person slaps her leg with her hand, bringing her hand to rest in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe09/thumbs-ed1ch08pe09-00002.png A person slaps her leg with her hand, bringing her hand to rest in 2.50 milliseconds from an initial speed of 4.00 m/s. (a) What is the average force exerted on the leg, taking the effective mass of the hand and forearm to be 1.50 kg? (b) Would the force be any different if the woman clapped her hands together at the same speed and brought them to rest in the same time? Explain why or why not. https://seo-videos.collegephysicsanswers.com/ch08/pe09/ed1ch08pe09.mp4 160 547 4.3 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-following-question-car-moving-10-ms-crashes-tree-and-stops-026-s Consider the following question: _A car moving at 10 m/s crashes into… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe25/thumbs-ed1ch08pe25-00002.png Consider the following question: _A car moving at 10 m/s crashes into a tree and stops in 0.26 s. Calculate the force the seatbelt exerts on a passenger in the car to bring him to a halt. The mass of the passenger is 70 kg._ Would the answer to this question be different if the car with the 70-kg passenger had collided with a car that has a mass equal to and is traveling in the opposite direction and at the same speed? Explain your answer. https://seo-videos.collegephysicsanswers.com/ch08/pe25/ed1ch08pe25.mp4 166 278 5 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/180-kg-falcon-catches-0650-kg-dove-behind-midair-what-their-velocity-after A 1.80-kg falcon catches a 0.650-kg dove from behind in midair. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe27/thumbs-ed1ch08pe27-00002.png A 1.80-kg falcon catches a 0.650-kg dove from behind in midair. What is their velocity after impact if the falcon’s velocity is initially 28.0 m/s and the dove’s velocity is 7.00 m/s in the same direction? https://seo-videos.collegephysicsanswers.com/ch08/pe27/ed1ch08pe27.mp4 92 725 4.4 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/near-end-marathon-race-first-two-runners-are-separated-distance-450-m-front Near the end of a marathon race, the first two runners are separated… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe54/thumbs-ed1ch03pe54-00002.png Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The front runner has a velocity of 3.50 m/s, and the second a velocity of 4.20 m/s. (a) What is the velocity of the second runner relative to the first? (b) If the front runner is 250 m from the finish line, who will win the race, assuming they run at constant velocity? (c) What distance ahead will the winner be when she crosses the finish line? https://seo-videos.collegephysicsanswers.com/ch03/pe54/ed1ch03pe54.mp4 266 904 3.8 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0240-kg-billiard-ball-moving-300-ms-strikes-bumper-pool-table-and-bounces A 0.240-kg billiard ball that is moving at 3.00 m/s strikes the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe31/thumbs-ed1ch08pe31-00002.png A 0.240-kg billiard ball that is moving at 3.00 m/s strikes the bumper of a pool table and bounces straight back at 2.40 m/s (80% of its original speed). The collision lasts 0.0150 s. (a) Calculate the average force exerted on the ball by the bumper. (b) How much kinetic energy in joules is lost during the collision? (c) What percent of the original energy is left? https://seo-videos.collegephysicsanswers.com/ch08/pe31/ed1ch08pe31.mp4 157 1007 4.1 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-if-you-assume-average-nucleus-spherical-radius-r-r0-a13-and-mass-atextrm-u (a) Show that if you assume the average nucleus is spherical with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe14/thumbs-ed1ch31pe14-00002.png (a) Show that if you assume the average nucleus is spherical with a radius r = r\_0 A^{1/3} , and with a mass of A u , then its density is independent of A. (b) Calculate that density in u/fm ^3 and kg/m ^3 , and compare your results with those found in [Example 31.1](https://openstax.org/books/college-physics/pages/31-3-substructure-of-the-nucleus#eip-193) for ^{56} Fe . https://seo-videos.collegephysicsanswers.com/ch31/pe14/ed1ch31pe14.mp4 162 37 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/velocity-wind-relative-water-crucial-sailboats-suppose-sailboat-ocean-current The velocity of the wind relative to the water is crucial to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe62/thumbs-ed1ch03pe62-00002.png The velocity of the wind relative to the water is crucial to sailboats. Suppose a sailboat is in an ocean current that has a velocity of 2.20 m/s in a direction 30.0° east of north relative to the Earth. It encounters a wind that has a velocity of 4.50 m/s in a direction of 50.0° south of west relative to the Earth. What is the velocity of the wind relative to the water? https://seo-videos.collegephysicsanswers.com/ch03/pe62/ed1ch03pe62.mp4 338 467 5 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/football-quarterback-moving-straight-backward-speed-200-ms-when-he-throws-pass-0 A football quarterback is moving straight backward at a speed of 2.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe56/thumbs-ed1ch03pe56-00002.png A football quarterback is moving straight backward at a speed of 2.00 m/s when he throws a pass to a player 18.0 m straight downfield. The ball is thrown at an angle of 25.0° relative to the ground and is caught at the same height as it is released. What is the initial velocity of the ball _relative to the quarterback_? https://seo-videos.collegephysicsanswers.com/ch03/pe56/ed1ch03pe56.mp4 522 488 5 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/same-rocket-sled-drawn-figure-430-decelerated-rate-196-ms2-what-force-necessary The same rocket sled drawn in Figure 4.30 is decelerated at a rate of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe06/thumbs-ed1ch04pe06-00002.png The same rocket sled drawn in Figure 4.30 is decelerated at a rate of 196 m/s ^2. What force is necessary to produce this deceleration? Assume that the rockets are off. The mass of the system is 2100 kg. https://seo-videos.collegephysicsanswers.com/ch04/pe06/ed1ch04pe06.mp4 42 607 5 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-piloted-satellites-approach-one-another-relative-speed-0250-ms-intending Two piloted satellites approach one another at a relative speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe29/thumbs-ed1ch08pe29-00002.png Two piloted satellites approach one another at a relative speed of 0.250 m/s, intending to dock. The first has a mass of 4.00 x 10^3 kg , and the second a mass of 7.50 x 10^3 kg . If the two satellites collide elastically rather than dock, what is their final relative velocity? https://seo-videos.collegephysicsanswers.com/ch08/pe29/ed1ch08pe29.mp4 461 1138 4 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-deceleration-rocket-sled-if-it-comes-rest-11-s-speed-1000-kmh-such What is the deceleration of the rocket sled if it comes to rest in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe08/thumbs-ed1ch04pe08-00002.png What is the deceleration of the rocket sled if it comes to rest in 1.1 s from a speed of 1000 km/h? (Such deceleration caused one test subject to black out and have temporary blindness.) https://seo-videos.collegephysicsanswers.com/ch04/pe08/ed1ch04pe08.mp4 81 606 4.4 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-waste-products-nuclear-reactor-plutonium-239-left-239pu-right-nucleus One of the waste products of a nuclear reactor is plutonium-239… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe39/thumbs-ed1ch08pe39-00002.png One of the waste products of a nuclear reactor is plutonium-239 \left( ^{239}Pu \right). This nucleus is radioactive and decays by splitting into a helium-4 nucleus and a uranium-235 nucleus \left( ^{4}He + ^{235}U \right), the latter of which is also radioactive and will itself decay some time later. The energy emitted in the plutonium decay is 8.40 x 10^{-13} J and is entirely converted to kinetic energy of the helium and uranium nuclei. The mass of the helium nucleus is 6.68 x 10^{-27} kg , while that of the uranium is 3.92 x 10^{-25} kg (note that the ratio of the masses is 4 to 235). (a) Calculate the velocities of the two nuclei, assuming the plutonium nucleus is originally at rest. (b) How much kinetic energy does each nucleus carry away? Note that the data given here are accurate to three digits only. https://seo-videos.collegephysicsanswers.com/ch08/pe39/ed1ch08pe39.mp4 399 447 2.6 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/powerful-motorcycle-can-produce-acceleration-350textrm-ms2-while-traveling-900 A powerful motorcycle can produce an acceleration of 3.50 m/s ^2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe10/thumbs-ed1ch04pe10-00002.png A powerful motorcycle can produce an acceleration of 3.50 m/s ^2 while traveling at 90.0 km/h. At that speed the forces resisting motion, including friction and air resistance, total 400 N. (Air resistance is analogous to air friction. It always opposes the motion of an object.) What is the magnitude of the force the motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245 kg? https://seo-videos.collegephysicsanswers.com/ch04/pe10/ed1ch04pe10.mp4 136 1421 4.3 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-identical-pucks-collide-air-hockey-table-one-puck-was-originally-rest-if Two identical pucks collide on an air hockey table. One puck was… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe45/thumbs-ed1ch08pe45-00002.png Two identical pucks collide on an air hockey table. One puck was originally at rest. (a) If the incoming puck has a speed of 6.00 m/s and scatters to an angle of 30.0°, what is the velocity (magnitude and direction) of the second puck? (You may use the result that \theta_1 - \theta_2 = 90° for elastic collisions of objects that have identical masses.) (b) Confirm that the collision is elastic. https://seo-videos.collegephysicsanswers.com/ch08/pe45/ed1ch08pe45.mp4 453 441 2 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ernest-rutherford-first-new-zealander-be-awarded-nobel-prize-chemistry Ernest Rutherford (the first New Zealander to be awarded the Nobel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe49/ed1ch08pe49b-thumbnail.jpg Ernest Rutherford (the first New Zealander to be awarded the Nobel Prize in Chemistry) demonstrated that nuclei were very small and dense by scattering helium-4 nuclei \left( ^4 He \right) from gold-197 nuclei \left( ^{197} Au \right). The energy of the incoming helium nucleus was 8.00 x 10^{-13} J , and the masses of the helium and gold nuclei were 6.68 x 10^{-27} kg and 3.29 x 10^{-25} kg , respectively (note that their mass ratio is 4 to 197). (a) If a helium nucleus scatters to an angle of 120° during an elastic collision with a gold nucleus, calculate the helium nucleus’s final speed and the final velocity (magnitude and direction) of the gold nucleus. (b) What is the final kinetic energy of the helium nucleus? https://seo-videos.collegephysicsanswers.com/ch08/pe49/ed1ch08pe49b.mp4 1570 208 4.2 2023-12-22 yes 2023-12-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-kg-squid-initially-rest-ejects-0250-kg-fluid-velocity-100-ms-what-recoil (a) A 5.00-kg squid initially at rest ejects 0.250-kg of fluid with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe61/thumbs-ed1ch08pe61-00002.png (a) A 5.00-kg squid initially at rest ejects 0.250-kg of fluid with a velocity of 10.0 m/s. What is the recoil velocity of the squid if the ejection is done in 0.100 s and there is a 5.00-N frictional force opposing the squid’s movement. (b) How much energy is lost to work done against friction? https://seo-videos.collegephysicsanswers.com/ch08/pe61/ed1ch08pe61.mp4 233 145 3 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-150-cm-thick-piece-lead-can-absorb-900-gamma-rays-radioactive-source-how-many If a 1.50-cm-thick piece of lead can absorb 90.0% of the \gamma rays… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe12/thumbs-ed1ch31pe12-00002.png If a 1.50-cm-thick piece of lead can absorb 90.0% of the \gamma rays from a radioactive source, how many centimeters of lead are needed to absorb all but 0.100% of the \gamma rays? https://seo-videos.collegephysicsanswers.com/ch31/pe12/ed1ch31pe12.mp4 374 61 5 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-particle-ionizing-radiation-deposits-10-mev-gas-geiger-tube-all-which Suppose a particle of ionizing radiation deposits 1.0 MeV in the gas… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe04/thumbs-ed1ch31pe04-00002.png Suppose a particle of ionizing radiation deposits 1.0 MeV in the gas of a Geiger tube, all of which goes to creating ion pairs. Each ion pair requires 30.0 eV of energy. (a) The applied voltage sweeps the ions out of the gas in 1.00 \mu s . What is the current? (b) This current is smaller than the actual current since the applied voltage in the Geiger tube accelerates the separated ions, which then create other ion pairs in subsequent collisions. What is the current if this last effect multiplies the number of ion pairs by 900? https://seo-videos.collegephysicsanswers.com/ch31/pe04/ed1ch31pe04.mp4 204 60 5 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-opening-door-you-push-it-perpendicularly-force-550-n-distance-0850m-hinges (a) When opening a door, you push on it perpendicularly with a force… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe01/thumbs-ed1ch09pe01-00002.png (a) When opening a door, you push on it perpendicularly with a force of 55.0 N at a distance of 0.850m from the hinges. What torque are you exerting relative to the hinges? (b) Does it matter if you push at the same height as the hinges? https://d1igkeoc1zsqhw.cloudfront.net/ch09/pe01/ed1ch09pe01.mp4 91 697 4.8 2018-04-05 no 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-mass-fully-loaded-module-which-astronauts-take-moon-10000-kg-thrust-its Suppose the mass of a fully loaded module in which astronauts take… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe14/thumbs-ed1ch04pe14-00002.png Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 10,000 kg. The thrust of its engines is 30,000 N. (a) Calculate its the magnitude of acceleration in a vertical takeoff from the Moon. (b) Could it lift off from Earth? If not, why not? If it could, calculate the magnitude of its acceleration. https://seo-videos.collegephysicsanswers.com/ch04/pe14/ed1ch04pe14.mp4 136 769 3.9 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-children-push-opposite-sides-door-during-play-both-push-horizontally-and Two children push on opposite sides of a door during play. Both push… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe03/thumbs-ed1ch09pe03-00002.png Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the hinges, and the second child pushes at a distance of 0.450 m. What force must the second child exert to keep the door from moving? Assume friction is negligible. https://seo-videos.collegephysicsanswers.com/ch09/pe03/ed1ch09pe03.mp4 64 1029 3.4 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/astronauts-orbit-are-apparently-weightless-clever-method-measuring-their-masses Since astronauts in orbit are apparently weightless, a clever method… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe04/thumbs-ed1ch04pe04-00002.png Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is needed to monitor their mass gains or losses to adjust diets. One way to do this is to exert a known force on an astronaut and measure the acceleration produced. Suppose a net external force of 50.0 N is exerted and the astronaut’s acceleration is measured to be0.893 m/s ^2 . (a) Calculate her mass. (b) By exerting a force on the astronaut, the vehicle in which they orbit experiences an equal and opposite force. Discuss how this would affect the measurement of the astronaut’s acceleration. Propose a method in which recoil of the vehicle is avoided. https://seo-videos.collegephysicsanswers.com/ch04/pe04/ed1ch04pe04.mp4 195 709 4 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-seesaw-problem-example-91-center-mass-seesaw-0160-m-left-pivot-side Repeat the seesaw problem in Example 9.1 with the center of mass of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe05/thumbs-ed1ch09pe05-00002.png Repeat the seesaw problem in Example 9.1 with the center of mass of the seesaw 0.160 m to the left of the pivot (on the side of the lighter child) and assuming a mass of 12.0 kg for the seesaw. The other data given in the example remain unchanged. Explicitly show how you follow the steps in the Problem-Solving Strategy for static equilibrium.**Example 9.1**: The two children shown in Figure 9.10 are balanced on a seesaw of negligible mass. (This assumption is made to keep the example simple—more involved examples will follow.) The first child has a mass of 26.0 kg and sits 1.60 m from the pivot.(a) If the second child has a mass of 32.0 kg, how far is she from the pivot? (b) What is F\_p, the supporting force exerted by the pivot? https://seo-videos.collegephysicsanswers.com/ch09/pe05/ed1ch09pe05.mp4 152 911 4 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-does-trampoline-have-apply-450-kg-gymnast-accelerate-her-straight-750 What force does a trampoline have to apply to a 45.0-kg gymnast to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe18/thumbs-ed1ch04pe18-00002.png What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at 7.50 m/s ^2? Note that the answer is independent of the velocity of the gymnast—she can be moving either up or down, or be stationary. https://seo-videos.collegephysicsanswers.com/ch04/pe18/ed1ch04pe18.mp4 69 887 4.5 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-children-mass-200-kg-and-300-kg-sit-balanced-seesaw-pivot-point-located Two children of mass 20.0 kg and 30.0 kg sit balanced on a seesaw… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe07/thumbs-ed1ch09pe07-00002.png Two children of mass 20.0 kg and 30.0 kg sit balanced on a seesaw with the pivot point located at the center of the seesaw. If the children are separated by a distance of 3.00 m, at what distance from the pivot point is the small child sitting in order to maintain the balance? https://seo-videos.collegephysicsanswers.com/ch09/pe07/ed1ch09pe07.mp4 133 1385 4.4 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/equation-x-sinwt-what-values-can-position-x-take-1-1-0-t-t In the equation x = A \sin{wt}, what values can the position x take?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap14/thumbs-ed1ch16ap14-00002.png In the equation x = A \sin{wt}, what values can the position x take? (a) −1 to +1(b) –A to +A(c) 0(d) –t to t https://seo-videos.collegephysicsanswers.com/ch16/ap14/ed1ch16ap14.mp4 34 2 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/represent-longitudinal-and-transverse-waves-graphical-form Represent longitudinal and transverse waves in a graphical form. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap20/thumbs-ed1ch16ap20-00002.png Represent longitudinal and transverse waves in a graphical form. https://seo-videos.collegephysicsanswers.com/ch16/ap20/ed1ch16ap20.mp4 67 2 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-carries-plank-wood-200-m-long-one-hand-pushing-down-it-one-end-force-f1 A person carries a plank of wood 2.00 m long with one hand pushing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe09/thumbs-ed1ch09pe09-00002.png A person carries a plank of wood 2.00 m long with one hand pushing down on it at one end with a force F_1 and the other hand holding it up at 50.0 cm from the end of the plank with force F_2. If the plank has a mass of 20.0 kg and its center of gravity is at the middle of the plank, what are the magnitudes of the forces F_1 and F_2 ? https://seo-videos.collegephysicsanswers.com/ch09/pe09/ed1ch09pe09.mp4 145 1054 4.3 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-900-kg-car-bridge-figure-933-its-center-mass-halfway-between-hinges-and Suppose a 900-kg car is on the bridge in Figure 9.33 with its center… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe13/thumbs-ed1ch09pe13-00002.png Suppose a 900-kg car is on the bridge in Figure 9.33 with its center of mass halfway between the hinges and the cable attachments. (The bridge is supported by the cables and hinges only.) (a) Find the force in the cables. (b) Find the direction and magnitude of the force exerted by the hinges on the bridge. https://seo-videos.collegephysicsanswers.com/ch09/pe13/ed1ch09pe13.mp4 363 462 2.6 2018-04-10 yes 2018-04-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/get-roof-person-mass-700-kg-places-600-m-aluminum-ladder-mass-100-kg-against To get up on the roof, a person (mass 70.0 kg) places a 6.00-m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe17/thumbs-ed1ch09pe17-00002.png To get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. The ladder rests against a plastic rain gutter, which we can assume to be frictionless. The center of mass of the ladder is 2 m from the bottom. The person is standing 3 m from the bottom. What are the magnitudes of the forces on the ladder at the top and bottom? https://seo-videos.collegephysicsanswers.com/ch09/pe17/ed1ch09pe17.mp4 403 797 4 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-should-woman-figure-946-exert-floor-each-hand-do-push-assume-she (a) What force should the woman in Figure 9.46 exert on the floor… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe37/thumbs-ed1ch09pe37-00002.png (a) What force should the woman in Figure 9.46 exert on the floor with each hand to do a push-up? Assume that she moves up at a constant speed. (b) The triceps muscle at the back of her upper arm has an effective lever arm of 1.75 cm, and she exerts force on the floor at a horizontal distance of 20.0 cm from the elbow joint. Calculate the magnitude of the force in each triceps muscle, and compare it to her weight. (c) How much work does she do if her center of mass rises 0.240 m? (d) What is her useful power output if she does 25 pushups in one minute? https://seo-videos.collegephysicsanswers.com/ch09/pe37/ed1ch09pe37.mp4 176 360 3.8 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/standing-wave-patterns-consist-nodes-and-antinodes-formed-repeated-interference Standing wave patterns consist of nodes and antinodes formed by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap30/thumbs-ed1ch16ap30-00002.png Standing wave patterns consist of nodes and antinodes formed by repeated interference between two waves of the same frequency traveling in opposite directions. What are nodes and antinodes and how are they produced? https://seo-videos.collegephysicsanswers.com/ch16/ap30/ed1ch16ap30.mp4 80 2 2021-02-24 yes 2021-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-baby-being-weighed-figure-434-what-mass-child-and-basket-if-scale Consider the baby being weighed in Figure 4.34. (a) What is the mass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe22/thumbs-ed1ch04pe22-00002.png Consider the baby being weighed in Figure 4.34. (a) What is the mass of the child and basket if a scale reading of 55 N is observed? (b) What is the tension T_1 in the cord attaching the baby to the scale? (c) What is the tension T_2 in the cord attaching the scale to the ceiling, if the scale has a mass of 0.500 kg? (d) Draw a sketch of the situation indicating the system of interest used to solve each part. The masses of the cords are negligible. https://seo-videos.collegephysicsanswers.com/ch04/pe22/ed1ch04pe22.mp4 132 1179 4.3 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/its-peak-tornado-600-m-diameter-and-carries-500-kmh-winds-what-its-angular At its peak, a tornado is 60.0 m in diameter and carries 500 km/h… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe01/thumbs-ed1ch10pe01-00002.png At its peak, a tornado is 60.0 m in diameter and carries 500 km/h winds. What is its angular velocity in revolutions per second? https://d1igkeoc1zsqhw.cloudfront.net/ch10/pe01/ed1ch10pe01.mp4 73 586 4 2018-04-13 no 2018-04-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/aid-string-gyroscope-accelerated-rest-32-rads-040-s-what-its-angular With the aid of a string, a gyroscope is accelerated from rest to 32… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe05/thumbs-ed1ch10pe05-00002.png With the aid of a string, a gyroscope is accelerated from rest to 32 rad/s in 0.40 s. (a) What is its angular acceleration in rad/s2? (b) How many revolutions does it go through in the process? https://seo-videos.collegephysicsanswers.com/ch10/pe05/ed1ch10pe05.mp4 60 821 4 2018-04-13 yes 2018-04-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-600-kg-gymnast-climbs-rope-what-tension-rope-if-he-climbs-constant-speed Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe20/thumbs-ed1ch04pe20-00002.png Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in the rope if he climbs at a constant speed? (b) What is the tension in the rope if he accelerates upward at a rate of 1.50 m/s ^2? https://seo-videos.collegephysicsanswers.com/ch04/pe20/ed1ch04pe20.mp4 130 1449 4.1 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gyroscope-slows-initial-rate-320-rads-rate-0700textrm-rads2-how-long-does-it A gyroscope slows from an initial rate of 32.0 rad/s at a rate of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe07/thumbs-ed1ch10pe07-00002.png A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0.700 rad/s ^2. (a) How long does it take to come to rest? (b) How many revolutions does it make before stopping? https://seo-videos.collegephysicsanswers.com/ch10/pe07/ed1ch10pe07.mp4 104 1031 3.6 2018-04-13 yes 2018-04-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-have-grindstone-disk-900-kg-has-0340-m-radius-and-turning-900-rpm-and-you You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe03/thumbs-ed1ch10pe03-00002.png You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is turning at 90.0 rpm, and you press a steel axe against it with a radial force of 20.0 N. (a) Assuming the kinetic coefficient of friction between steel and stone is 0.20, calculate the angular acceleration of the grindstone. (b) How many turns will the stone make before coming to rest? https://seo-videos.collegephysicsanswers.com/ch10/pe03/ed1ch10pe03.mp4 295 997 4.4 2018-04-13 yes 2018-04-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/brave-inadequate-rugby-player-being-pushed-backward-opposing-player-who-exerting A brave but inadequate rugby player is being pushed backward by an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe16/thumbs-ed1ch04pe16-00002.png A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. The mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20 m/s ^2 backward. (a) What is the force of friction between the losing player’s feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) Draw a sketch of the situation showing the system of interest used to solve each part. For this situation, draw a free-body diagram and write the net force equation. https://seo-videos.collegephysicsanswers.com/ch04/pe16/ed1ch04pe16.mp4 214 1460 4.4 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-moment-inertia-skater-given-following-information-600-kg-skater Calculate the moment of inertia of a skater given the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe11/thumbs-ed1ch10pe11-00002.png Calculate the moment of inertia of a skater given the following information. (a) The 60.0-kg skater is approximated as a cylinder that has a 0.110-m radius. (b) The skater with arms extended is approximately a cylinder that is 52.5 kg, has a 0.110-m radius, and has two 0.900-m-long arms which are 3.75 kg each and extend straight out from the cylinder like rods rotated about their ends. https://seo-videos.collegephysicsanswers.com/ch10/pe11/ed1ch10pe11.mp4 195 898 3.8 2018-04-13 yes 2018-04-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rotational-kinetic-energy-earth-its-axis-b-what-rotational-kinetic (a) Calculate the rotational kinetic energy of Earth on its axis. (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe23/thumbs-ed1ch10pe23-00002.png (a) Calculate the rotational kinetic energy of Earth on its axis. (b) What is the rotational kinetic energy of Earth in its orbit around the Sun? https://seo-videos.collegephysicsanswers.com/ch10/pe23/ed1ch10pe23.mp4 102 419 3.5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/baseball-pitcher-throws-ball-motion-where-there-rotation-forearm-about-elbow A baseball pitcher throws the ball in a motion where there is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe25/thumbs-ed1ch10pe25-00002.png A baseball pitcher throws the ball in a motion where there is rotation of the forearm about the elbow joint as well as other movements. If the linear velocity of the ball relative to the elbow joint is 20.0 m/s at a distance of 0.480 m from the joint and the moment of inertia of the forearm is 0.500 kg \cdot m ^2, what is the rotational kinetic energy of the forearm? https://seo-videos.collegephysicsanswers.com/ch10/pe25/ed1ch10pe25.mp4 71 348 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-strength-weak-nuclear-force-relative-strong-nuclear-force-b-what-strength (a) What is the strength of the weak nuclear force relative to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe52/thumbs-ed1ch04pe52-00002.png (a) What is the strength of the weak nuclear force relative to the strong nuclear force? (b) What is the strength of the weak nuclear force relative to the electromagnetic force? Since the weak nuclear force acts at only very short distances, such as inside nuclei, where the strong and electromagnetic forces also act, it might seem surprising that we have any knowledge of it at all. We have such knowledge because the weak nuclear force is responsible for beta decay, a type of nuclear decay not explained by other forces. https://seo-videos.collegephysicsanswers.com/ch04/pe52/ed1ch04pe52.mp4 47 245 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-strength-strong-nuclear-force-electromagnetic-force-based-ratio-you What is the ratio of the strength of the strong nuclear force to that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe54/thumbs-ed1ch04pe54-00002.png What is the ratio of the strength of the strong nuclear force to that of the electromagnetic force? Based on this ratio, you might expect that the strong force dominates the nucleus, which is true for small nuclei. Large nuclei, however, have sizes greater than the range of the strong nuclear force. At these sizes, the electromagnetic force begins to affect nuclear stability. These facts will be used to explain nuclear fusion and fission later in this text. https://seo-videos.collegephysicsanswers.com/ch04/pe54/ed1ch04pe54.mp4 82 214 5 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-when-starting-foot-race-700-kg-sprinter-exerts-average-force **Integrated Concepts** When starting a foot race, a 70.0-kg sprinter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe44/thumbs-ed1ch04pe44-00002.png **Integrated Concepts** When starting a foot race, a 70.0-kg sprinter exerts an average force of 650 N backward on the ground for 0.800 s. (a) What is his final speed? (b) How far does he travel? https://seo-videos.collegephysicsanswers.com/ch04/pe44/ed1ch04pe44.mp4 125 404 4.3 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-considers-energy-and-work-aspects-example-107-use-data-example-needed This problem considers energy and work aspects of Example 10.7—use… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe21/thumbs-ed1ch10pe21-00002.png This problem considers energy and work aspects of Example 10.7—use data from that example as needed. (a) Calculate the rotational kinetic energy in the merry-go-round plus child when they have an angular velocity of 20.0 rpm. (b) Using energy considerations, find the number of revolutions the father will have to push to achieve this angular velocity starting from rest. (c) Again, using energy considerations, calculate the force the father must exert to stop the merry-go- round in two revolutions**Exerpt from Example 10.7**: Consider the father pushing a playground merry-go-round in Figure 10.13. He exerts a force of 250 N at the edge of the 50.0-kg merry-go-round, which has a 1.50 m radius. https://seo-videos.collegephysicsanswers.com/ch10/pe21/ed1ch10pe21.mp4 241 549 2.3 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wheels-midsize-car-exert-force-2100-n-backward-road-accelerate-car-forward The wheels of a midsize car exert a force of 2100 N backward on the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe24/thumbs-ed1ch04pe24-00002.png The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s ^w , what is the mass of the car plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion. For this situation, draw a free-body diagram and write the net force equation. https://seo-videos.collegephysicsanswers.com/ch04/pe24/ed1ch04pe24.mp4 113 604 5 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/everyday-application-suppose-yo-yo-has-center-shaft-has-0250-cm-radius-and-its Everyday application: Suppose a yo-yo has a center shaft that has a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe09/thumbs-ed1ch10pe09-00002.png Everyday application: Suppose a yo-yo has a center shaft that has a 0.250 cm radius and that its string is being pulled. (a) If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s ^2, what is the angular acceleration of the yo-yo? (b) What is the angular velocity after 0.750 s if it starts from rest? (c) The outside radius of the yo-yo is 3.50 cm. What is the tangential acceleration of a point on its edge? https://seo-videos.collegephysicsanswers.com/ch10/pe09/ed1ch10pe09.mp4 96 728 4.7 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bus-contains-1500-kg-flywheel-disk-has-0600-m-radius-and-has-total-mass-10000-kg A bus contains a 1500 kg flywheel (a disk that has a 0.600 m radius)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe27/thumbs-ed1ch10pe27-00002.png A bus contains a 1500 kg flywheel (a disk that has a 0.600 m radius) and has a total mass of 10,000 kg. (a) Calculate the angular velocity the flywheel must have to contain enough energy to take the bus from rest to a speed of 20.0 m/s, assuming 90.0% of the rotational kinetic energy can be transformed into translational energy. (b) How high a hill can the bus climb with this stored energy and still have a speed of 3.00 m/s at the top of the hill? Explicitly show how you follow the steps in the Problem-Solving Strategy for Rotational Energy. https://seo-videos.collegephysicsanswers.com/ch10/pe27/ed1ch10pe27.mp4 273 237 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-your-car-was-mired-deeply-mud-and-you-wanted-use-method-illustrated Suppose your car was mired deeply in the mud and you wanted to use… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe32/thumbs-ed1ch04pe32-00002.png Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in Figure 4.36 to pull it out. (a) What force would you have to exert perpendicular to the center of the rope to produce a force of 12,000 N on the car if the angle is 2.00°? In this part, explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion. (b) Real ropes stretch under such forces. What force would be exerted on the car if the angle increases to 7.00° and you still apply the force found in part (a) to its center? https://seo-videos.collegephysicsanswers.com/ch04/pe32/ed1ch04pe32.mp4 187 853 5 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/while-exercising-fitness-center-man-lies-face-down-bench-and-lifts-weight-one While exercising in a fitness center, a man lies face down on a bench… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe29/thumbs-ed1ch10pe29-00002.png While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one lower leg by contracting the muscles in the back of the upper leg. (a) Find the angular acceleration produced given the mass lifted is 10.0 kg at a distance of 28.0 cm from the knee joint, the moment of inertia of the lower leg is 0.900 kg \cdot m ^2, the muscle force is 1500 N, and its effective perpendicular lever arm is 3.00 cm. (b) How much work is done if the leg rotates through an angle of 20.0° with a constant force exerted by the muscle? https://seo-videos.collegephysicsanswers.com/ch10/pe29/ed1ch10pe29.mp4 210 422 4.5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/soccer-player-extends-her-lower-leg-kicking-motion-exerting-force-muscle-above A soccer player extends her lower leg in a kicking motion by exerting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe13/thumbs-ed1ch10pe13-00002.png A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. She produces an angular acceleration of 30.00 rad/s ^2 and her lower leg has a moment of inertia of 0.750 kg \cdot m ^2. What is the force exerted by the muscle if its effective perpendicular lever arm is 1.90 cm? https://seo-videos.collegephysicsanswers.com/ch10/pe13/ed1ch10pe13.mp4 72 471 4.1 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-magnitudes-forces-vecf1-and-vecf2-add-give-total-force-vecftextrmtot-shown (a) Find the magnitudes of the forces \vec{F_1} and \vec{F_2} that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe30/thumbs-ed1ch04pe30-00002.png (a) Find the magnitudes of the forces \vec{F_1} and \vec{F_2} that add to give the total force \vec{F_{ tot }} shown in Figure 4.35. This may be done either graphically or by using trigonometry. (b) Show graphically that the same total force is obtained independent of the order of addition of \vec{F_1} and \vec{F_2} . (c) Find the direction and magnitude of some other pair of vectors that add to give \vec{F_{ tot }} . Draw these to scale on the same drawing used in part (b) or a similar picture. https://seo-videos.collegephysicsanswers.com/ch04/pe30/ed1ch04pe30.mp4 230 867 3 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/commercial-airplanes-are-sometimes-pushed-out-passenger-loading-area-tractor Commercial airplanes are sometimes pushed out of the passenger… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe28/thumbs-ed1ch04pe28-00002.png Commercial airplanes are sometimes pushed out of the passenger loading area by a tractor. (a) An 1800-kg tractor exerts a force of 1.75 x 10^{4} N backward on the pavement, and the system experiences forces resisting motion that total 2400 N. If the acceleration is 0.150 m/s ^2, what is the mass of the airplane? (b) Calculate the force exerted by the tractor on the airplane, assuming 2200 N of the friction is experienced by the airplane. (c) Draw two sketches showing the systems of interest used to solve each part, including the free-body diagrams for each. https://seo-videos.collegephysicsanswers.com/ch04/pe28/ed1ch04pe28.mp4 268 545 4.1 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/playground-merry-go-round-has-mass-120-kg-and-radius-180-m-and-it-rotating A playground merry-go-round has a mass of 120 kg and a radius of 1.80… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe39/thumbs-ed1ch10pe39-00002.png A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.500 rev/s. What is its angular velocity after a 22.0-kg child gets onto it by grabbing its outer edge? The child is initially at rest. https://seo-videos.collegephysicsanswers.com/ch10/pe39/ed1ch10pe39.mp4 148 1160 3.2 2018-04-24 yes 2018-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe18/thumbs-ed1ch31pe18-00002.png Write the complete decay equation for the given nuclide in the complete ^ A _ Z X _ N notation: \beta^- decay of ^{40} K , a naturally occurring rare isotope of potassium responsible for some of our exposure to background radiation. https://seo-videos.collegephysicsanswers.com/ch31/pe18/ed1ch31pe18.mp4 64 139 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/teacher-wants-demonstrate-speed-sound-not-constant-valuconsidering-her-regular A teacher wants to demonstrate that the speed of sound is not a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap01/thumbs-ed1ch17ap01-00002.png A teacher wants to demonstrate that the speed of sound is not a constant valuConsidering her regular classroom voice as the control, which of the following will increase the speed of sound leaving her mouth? (a) Submerge her mouth underwater and speak at the same volume.(b) Increase the temperature of the room and speak at the same volume.(c) Increase the pitch of her voice and speak at the same volume. (a) I only(b) I and II only(c) I, II and III(d) II and III(e) III only https://seo-videos.collegephysicsanswers.com/ch17/ap01/ed1ch17ap01.mp4 50 2 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/all-members-orchestra-begin-tuning-their-instruments-same-time-while-some All members of an orchestra begin tuning their instruments at the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap02/thumbs-ed1ch17ap02-00002.png All members of an orchestra begin tuning their instruments at the same time. While some woodwind instruments play high frequency notes, other stringed instruments play notes of lower frequency. Yet an audience member will hear all notes simultaneously, in apparent contrast to the equation. Explain how a student could demonstrate the flaw in the above logic, using a slinky, stopwatch, and meter stick. Make sure to explain what relationship is truly demonstrated in the above equation, in addition to what would be necessary to get the speed of the slinky to actually change. You may include diagrams and equations as part of your explanation. https://seo-videos.collegephysicsanswers.com/ch17/ap02/ed1ch17ap02.mp4 113 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-angular-momentum-ice-skater-spinning-600-revs-given-his-moment-inertia (a) Calculate the angular momentum of an ice skater spinning at 6.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe41/thumbs-ed1ch10pe41-00002.png (a) Calculate the angular momentum of an ice skater spinning at 6.00 rev/s given his moment of inertia is 0.400 kg \cdot m ^2. (b) He reduces his rate of spin (his angular velocity) by extending his arms and increasing his moment of inertia. Find the value of his moment of inertia if his angular velocity decreases to 1.25 rev/s. (c) Suppose instead he keeps his arms in and allows friction of the ice to slow him to 3.00 rev/s. What average torque was exerted if this takes 15.0 s? https://seo-videos.collegephysicsanswers.com/ch10/pe41/ed1ch10pe41.mp4 167 825 4 2018-04-24 yes 2018-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/musician-strikes-strings-guitar-such-they-vibrate-twice-amplitude-explain-why A musician strikes the strings of a guitar such that they vibrate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap04/thumbs-ed1ch17ap04-00002.png A musician strikes the strings of a guitar such that they vibrate with twice the amplitude. (a) Explain why this requires an energy input greater than twice the original value.(b) Explain why the sound leaving the string will not result in a decibel level that is twice as great. https://seo-videos.collegephysicsanswers.com/ch17/ap04/ed1ch17ap04.mp4 178 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/following-graph-represents-perceived-frequency-car-it-passes-student-if-true The following graph represents the perceived frequency of a car as it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap06/thumbs-ed1ch17ap06-00002.png The following graph represents the perceived frequency of a car as it passes a student. (a) If the true frequency of the car’s horn is 200 Hz, how fast was the car traveling?(b) On the graph above, draw a line demonstrating the perceived frequency for a car traveling twice as fast. Label all intercepts, maximums, and minimums on the graph. https://seo-videos.collegephysicsanswers.com/ch17/ap06/ed1ch17ap06.mp4 198 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-wave-pulses-are-traveling-toward-each-other-string-shown-below-which Two wave pulses are traveling toward each other on a string, as shown… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap08/thumbs-ed1ch17ap08-00002.png Two wave pulses are traveling toward each other on a string, as shown below. Which of the following representations correctly shows the string as the two pulses overlap? https://seo-videos.collegephysicsanswers.com/ch17/ap08/ed1ch17ap08.mp4 97 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-would-demonstrate-destructive-interference-using-two-sound-sources A student would like to demonstrate destructive interference using… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap10/thumbs-ed1ch17ap10-00002.png A student would like to demonstrate destructive interference using two sound sources. Explain how the student could set up this demonstration and what restrictions they would need to place upon their sources. Be sure to consider both the layout of space and the sounds created in your explanation. https://seo-videos.collegephysicsanswers.com/ch17/ap10/ed1ch17ap10.mp4 164 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-example-1015-which-disk-strikes-and-adheres-stick-0100-m-nail-example Repeat Example 10.15 in which the disk strikes and adheres to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe43/thumbs-ed1ch10pe43-00002.png Repeat Example 10.15 in which the disk strikes and adheres to the stick 0.100 m from the nail.**Example 10.15**: Suppose the disk in Figure 10.26 has a mass of 50.0 g and an initial velocity of 30.0 m/s when it strikes the stick that is 1.20 m long and 2.00 kg. (a) What is the angular velocity of the two after the collision? (b) What is the kinetic energy before and after the collision? (c) What is the total linear momentum before and after the collision? https://seo-videos.collegephysicsanswers.com/ch10/pe43/ed1ch10pe43.mp4 444 259 3.5 2018-04-24 yes 2018-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ripple-tank-has-two-locations-l1-and-l2-vibrate-tandem-shown-below-both-l1-and A ripple tank has two locations (L1 and L2) that vibrate in tandem as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap12/thumbs-ed1ch17ap12-00002.png A ripple tank has two locations (L1 and L2) that vibrate in tandem as shown below. Both L1 and L2 vibrate in a plane perpendicular to the page, creating a two-dimensional interference pattern. Describe an experimental procedure to determine the speed of the waves created within the water, including all additional equipment that you would need. You may use the diagram below to help your description, or you may create one of your own. Include enough detail so that another student could carry out your experiment. https://seo-videos.collegephysicsanswers.com/ch17/ap12/ed1ch17ap12.mp4 134 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-milliamperes-produced-solar-cells-pocket-calculator-through-which What is the current in milliamperes produced by the solar cells of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe01/thumbs-ed1ch20pe01-00002.png What is the current in milliamperes produced by the solar cells of a pocket calculator through which 4.00 C of charge passes in 4.00 h? https://d1igkeoc1zsqhw.cloudfront.net/ch20/pe01/ed1ch20pe01.mp4 48 226 3 2018-04-26 no 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/accepted-speed-sound-room-temperature-air-346-ms-knowing-their-school-colder The accepted speed of sound in room temperature air is 346 m/s.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap14/thumbs-ed1ch17ap14-00002.png The accepted speed of sound in room temperature air is 346 m/s. Knowing that their school is colder than usual, a group of students is asked to determine the speed of sound in their room. They are permitted to use any materials necessary; however, their lab procedure must utilize standing wave patterns. The students collect the information Table 17.9. (a) Describe an experimental procedure the group of students could have used to obtain this data. Include diagrams of the experimental setup and any equipment used in the process.(b) Select a set of data points from the table and plot those points on a graph to determine the speed of sound within the classroom. Fill in the blank column in the table for any quantities you graph other than the given data. Label the axes and indicate the scale for each. Draw a best-fit line or curve through your data points.(c) Using information from the graph, determine the speed of sound within the student’s classroom, and explain what characteristic of the graph provides this evidence.(d) Determine the temperature of the classroom. https://seo-videos.collegephysicsanswers.com/ch17/ap14/ed1ch17ap14.mp4 303 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/760-kg-person-being-pulled-away-burning-building-shown-figure-440-calculate A 76.0-kg person is being pulled away from a burning building as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe42/thumbs-ed1ch04pe42-00002.png A 76.0-kg person is being pulled away from a burning building as shown in Figure 4.40. Calculate the tension in the two ropes if the person is momentarily motionless. Include a free-body diagram in your solution. https://seo-videos.collegephysicsanswers.com/ch04/pe42/ed1ch04pe42.mp4 261 1438 3.9 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-decides-test-speed-sound-through-wood-using-wooden-ruler-student-rests A student decides to test the speed of sound through wood using a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap18/thumbs-ed1ch17ap18-00002.png A student decides to test the speed of sound through wood using a wooden ruler. The student rests the ruler on a desk with half of its length protruding off the desk edge. The student then holds one end in place and strikes the protruding end with his other hand, creating a musical sound, and counts the number of vibrations of the ruler. Explain why the student would not be able to measure the speed of sound through wood using this method. https://seo-videos.collegephysicsanswers.com/ch17/ap18/ed1ch17ap18.mp4 45 2 2021-03-04 yes 2021-03-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/between-figure-1914-and-figure-1915-which-more-closely-resembles-gravitational Between Figure 19.14 and Figure 19.15, which more closely resembles… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap28/thumbs-ed1ch19ap28-00002.png Between Figure 19.14 and Figure 19.15, which more closely resembles the gravitational field between two equal masses, and why? https://seo-videos.collegephysicsanswers.com/ch19/ap28/ed1ch19ap28.mp4 116 2021-03-20 yes 2021-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-results-example-203-find-drift-velocity-copper-wire-twice-diameter-and Using the results of Example 20.3, find the drift velocity in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe15/thumbs-ed1ch20pe15-00002.png Using the results of Example 20.3, find the drift velocity in a copper wire of twice the diameter and carrying 20.0 A.**Example 20.3**: Calculate the drift velocity of electrons in a 12-gauge copper wire (which has a diameter of 2.053 mm) carrying a 20.0-A current, given that there is one free electron per copper atom. (Household wiring often contains 12-gauge copper wire, and the maximum current allowed in such wire is usually 20 A.) The density of copper is 8.80 x 10^3 kg/m ^3 . https://seo-videos.collegephysicsanswers.com/ch20/pe15/ed1ch20pe15.mp4 202 210 5 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-connects-one-end-string-negligible-mass-oscillator-other-end-string A student connects one end of a string with negligible mass to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap21/thumbs-ed1ch17ap21-00002.png A student connects one end of a string with negligible mass to an oscillator. The other end of the string is passed over a pulley and attached to a suspended weight, as shown above. The student finds that a standing wave with one antinode is formed on the string when the frequency of the oscillator is f0. The student then moves the oscillator to shorten the horizontal segment of string to half its original length. At what frequency will a standing wave with one antinode now be formed on the string? (a) \dfrac{f\_o}{2}(b) f\_o(c) 2f\_o(d) There is no frequency at which a standing wave will be formed. https://seo-videos.collegephysicsanswers.com/ch17/ap21/ed1ch17ap21.mp4 114 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/defibrillator-sends-600-current-through-chest-patient-applying-10000-v-potential (a) A defibrillator sends a 6.00-A current through the chest of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe07/thumbs-ed1ch20pe07-00002.png (a) A defibrillator sends a 6.00-A current through the chest of a patient by applying a 10,000-V potential as in the figure below. What is the resistance of the path? (b) The defibrillator paddles make contact with the patient through a conducting gel that greatly reduces the path resistance. Discuss the difficulties that would ensue if a larger voltage were used to produce the same current through the patient, but with the path having perhaps 50 times the resistance. (Hint: The current must be about the same, so a higher voltage would imply greater power. Use this equation for power: P=I^2R) https://seo-videos.collegephysicsanswers.com/ch20/pe07/ed1ch20pe07.mp4 117 309 5 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/defibrillator-passes-120-current-through-torso-person-00100-s-how-much-charge (a) A defibrillator passes 12.0 A of current through the torso of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe09/thumbs-ed1ch20pe09-00002.png (a) A defibrillator passes 12.0 A of current through the torso of a person for 0.0100 s. How much charge moves? (b) How many electrons pass through the wires connected to the patient? (See figure below.) https://seo-videos.collegephysicsanswers.com/ch20/pe09/ed1ch20pe09.mp4 52 296 4.4 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diameter-0-gauge-copper-wire-8252-mm-find-resistance-100-km-length-such-wire The diameter of 0-gauge copper wire is 8.252 mm. Find the resistance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe25/thumbs-ed1ch20pe25-00002.png The diameter of 0-gauge copper wire is 8.252 mm. Find the resistance of a 1.00-km length of such wire used for power transmission. https://seo-videos.collegephysicsanswers.com/ch20/pe25/ed1ch20pe25.mp4 79 294 4.3 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-must-you-raise-copper-wire-originally-200circtextrmc-double-its (a) To what temperature must you raise a copper wire, originally at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe29/thumbs-ed1ch20pe29-00002.png (a) To what temperature must you raise a copper wire, originally at 20.0° C , to double its resistance, neglecting any changes in dimensions? (b) Does this happen in household wiring under ordinary circumstances? https://seo-videos.collegephysicsanswers.com/ch20/pe29/ed1ch20pe29.mp4 152 352 4.3 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-current-through-person-and-identify-likely-effect-her-if-she-touches-120-v Find the current through a person and identify the likely effect on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe87/thumbs-ed1ch20pe87-00002.png Find the current through a person and identify the likely effect on her if she touches a 120-V AC source: (a) if she is standing on a rubber mat and offers a total resistance of 300 k \Omega ; (b) if she is standing barefoot on wet grass and has a resistance of only 4000 \Omega. https://seo-videos.collegephysicsanswers.com/ch20/pe87/ed1ch20pe87.mp4 50 160 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-largest-and-smallest-resistances-you-can-obtain-connecting-360omega What are the largest and smallest resistances you can obtain by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe03/thumbs-ed1ch21pe03-00002.png What are the largest and smallest resistances you can obtain by connecting a 36.0\Omega, a 50.0\Omega , and a 700 \Omega resistor together? https://seo-videos.collegephysicsanswers.com/ch21/pe03/ed1ch21pe03.mp4 56 187 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-acceleration-any-object-down-frictionless-incline-makes-angle-theta Show that the acceleration of any object down a frictionless incline… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe08/thumbs-ed1ch05pe08-00002.png Show that the acceleration of any object down a frictionless incline that makes an angle \theta with the horizontal is a = g \sin{\theta} . (Note that this acceleration is independent of mass.) https://seo-videos.collegephysicsanswers.com/ch05/pe08/ed1ch05pe08.mp4 209 959 4.6 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-example-combining-series-and-parallel-circuits-and-figure-216 Referring to the example combining series and parallel circuits and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe07/thumbs-ed1ch21pe07-00002.png Referring to the example combining series and parallel circuits and Figure 21.6, calculate I_3 in the following two different ways: (a) from the known values of I and I_2 ; (b) using Ohm’s law for R_3 . In both parts explicitly show how you follow the steps in the Problem-Solving Strategies for Series and Parallel Resistors. From the example: I = 2.35 A , and I_2 = 1.61 A . https://seo-videos.collegephysicsanswers.com/ch21/pe07/ed1ch21pe07.mp4 165 326 4 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-terminal-voltage-large-154-v-carbon-zinc-dry-cell-used-physics-lab-supply (a) What is the terminal voltage of a large 1.54-V carbon- zinc dry… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe17/thumbs-ed1ch21pe17-00002.png (a) What is the terminal voltage of a large 1.54-V carbon- zinc dry cell used in a physics lab to supply 2.00 A to a circuit, if the cell’s internal resistance is 0.100 \Omega ? (b) How much electrical power does the cell produce? (c) What power goes to its load? https://seo-videos.collegephysicsanswers.com/ch21/pe17/ed1ch21pe17.mp4 103 431 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-deceleration-snow-boarder-going-50circ-slope-assuming-coefficient Calculate the deceleration of a snow boarder going up a 5.0°, slope… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe10/thumbs-ed1ch05pe10-00002.png Calculate the deceleration of a snow boarder going up a 5.0°, slope assuming the coefficient of friction for waxed wood on wet snow. The result of Exercise 5.9 may be useful, but be careful to consider the fact that the snow boarder is going uphill. Explicitly show how you follow the steps in Problem-Solving Strategies. https://seo-videos.collegephysicsanswers.com/ch05/pe10/ed1ch05pe10.mp4 179 1058 3.9 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/apply-loop-rule-loop-abcdefgha-figure-2125 Apply the loop rule to loop abcdefgha in Figure 21.25. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe31/thumbs-ed1ch21pe31-00002.png Apply the loop rule to loop abcdefgha in Figure 21.25. https://seo-videos.collegephysicsanswers.com/ch21/pe31/ed1ch21pe31.mp4 93 522 4.2 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/apply-junction-rule-point-figure-2152 Apply the junction rule at point a in Figure 21.52. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe35/thumbs-ed1ch21pe35-00002.png Apply the junction rule at point a in Figure 21.52. https://seo-videos.collegephysicsanswers.com/ch21/pe35/ed1ch21pe35.mp4 31 435 4.4 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-fish-generate-current-biological-cells-called-electroplaques-which-are Electric fish generate current with biological cells called… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe27/thumbs-ed1ch21pe27-00002.png Electric fish generate current with biological cells called electroplaques, which are physiological emf devices. The electroplaques in the South American eel are arranged in 140 rows, each row stretching horizontally along the body and each containing 5000 electroplaques. Each electroplaque has an emf of 0.15 V and internal resistance of 0.25\Omega . If the water surrounding the fish has resistance of 800 \Omega, how much current can the eel produce in water from near its head to near its tail? https://seo-videos.collegephysicsanswers.com/ch21/pe27/ed1ch21pe27.mp4 260 84 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-sensitivity-galvanometer-what-current-gives-full-scale-deflection-inside What is the sensitivity of the galvanometer (that is, what current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe43/thumbs-ed1ch21pe43-00002.png What is the sensitivity of the galvanometer (that is, what current gives a full-scale deflection) inside a voltmeter that has a 25.0 k \Omega resistance on its 100-V scale? https://seo-videos.collegephysicsanswers.com/ch21/pe43/ed1ch21pe43.mp4 68 186 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-electron-capture-106textrmin-complete Write the complete decay equation for electron capture by ^{106} In … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe22/thumbs-ed1ch31pe22-00002.png Write the complete decay equation for electron capture by ^{106} In in the complete ^ A _ Z X _ N notation. https://seo-videos.collegephysicsanswers.com/ch31/pe22/ed1ch31pe22.mp4 68 88 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-120-kg-wooden-crate-resting-wood-floor-what-maximum-force-can Suppose you have a 120-kg wooden crate resting on a wood floor. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe04/thumbs-ed1ch05pe04-00002.png Suppose you have a 120-kg wooden crate resting on a wood floor. (a) What maximum force can you exert horizontally on the crate without moving it? (b) If you continue to exert this force once the crate starts to slip, what will the magnitude of its acceleration then be? https://seo-videos.collegephysicsanswers.com/ch05/pe04/ed1ch05pe04.mp4 204 2051 3.1 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-resistance-must-be-placed-parallel-100-omega-galvanometer-having-100-mu Find the resistance that must be placed in parallel with a 10.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe49/thumbs-ed1ch21pe49-00002.png Find the resistance that must be placed in parallel with a 10.0 \Omega galvanometer having a 100 \mu A sensitivity to allow it to be used as an ammeter with: (a) a 20.0-A full-scale reading, and (b) a 100-mA full-scale reading. https://seo-videos.collegephysicsanswers.com/ch21/pe49/ed1ch21pe49.mp4 170 213 3.7 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-object-rest-incline-without-slipping-then-friction-must-equal-component If an object is to rest on an incline without slipping, then friction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe12/thumbs-ed1ch05pe12-00002.png If an object is to rest on an incline without slipping, then friction must equal the component of the weight of the object parallel to the incline. This requires greater and greater friction for steeper slopes. Show that the maximum angle of an incline above the horizontal for which an object will not slide down is \theta = \tan^{-1}{\mu_s} . You may use the result of the previous problem. Assume that a = 0 and that static friction has reached its maximum value. https://seo-videos.collegephysicsanswers.com/ch05/pe12/ed1ch05pe12.mp4 198 358 4.2 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-maximum-acceleration-car-heading-4circ-slope-one-makes-angle-4circ Calculate the maximum acceleration of a car that is heading up a 4°… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe14/thumbs-ed1ch05pe14-00002.png Calculate the maximum acceleration of a car that is heading up a 4° slope (one that makes an angle of 4° with the horizontal) under the following road conditions. Assume that only half the weight of the car is supported by the two drive wheels and that the coefficient of static friction is involved—that is, the tires are not allowed to slip during the acceleration. (Ignore rolling.) (a) On dry concrete. (b) On wet concrete. (c) On ice, assuming that \mu_s = 0.100 , the same as for shoes on ice. https://seo-videos.collegephysicsanswers.com/ch05/pe14/ed1ch05pe14.mp4 288 484 5 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-measure-terminal-voltage-3200-v-lithium-cell-having-internal Suppose you measure the terminal voltage of a 3.200-V lithium cell… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe51/thumbs-ed1ch21pe51-00002.png Suppose you measure the terminal voltage of a 3.200-V lithium cell having an internal resistance of 5.00 \Omega by placing a 1.00 k \Omega voltmeter across its terminals. (a) What current flows? (b) Find the terminal voltage. (c) To see how close the measured terminal voltage is to the emf, calculate their ratio. https://seo-videos.collegephysicsanswers.com/ch21/pe51/ed1ch21pe51.mp4 155 233 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-resistance-wire-r-o-what-will-be-resistance-another-wire-same-material Suppose the resistance of a wire is R Ω. What will be the resistance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap10/thumbs-ed1ch20ap10-00002.png Suppose the resistance of a wire is R Ω. What will be the resistance of another wire of the same material having the same length but double the diameter? (a) R/2(b) 2R(c) R/4(d) 4R https://seo-videos.collegephysicsanswers.com/ch20/ap10/ed1ch20ap10.mp4 106 2 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/timing-device-automobiles-intermittent-wiper-system-based-rc-time-constant-and The timing device in an automobile’s intermittent wiper system is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe63/thumbs-ed1ch21pe63-00002.png The timing device in an automobile’s intermittent wiper system is based on an RC time constant and utilizes a 0.500 \mu F capacitor and a variable resistor. Over what range must R be made to vary to achieve time constants from 2.00 to 15.0 s ? https://seo-videos.collegephysicsanswers.com/ch21/pe63/ed1ch21pe63.mp4 52 229 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heart-defibrillator-being-used-patient-has-rc-time-constant-100-ms-due A heart defibrillator being used on a patient has an RC time constant… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe69/thumbs-ed1ch21pe69-00002.png A heart defibrillator being used on a patient has an RC time constant of 10.0 ms due to the resistance of the patient and the capacitance of the defibrillator. (a) If the defibrillator has an 8.00 \mu F capacitance, what is the resistance of the path through the patient? (You may neglect the capacitance of the patient and the resistance of the defibrillator.) (b) If the initial voltage is 12.0 kV, how long does it take to decline to 6.00 x 10^2 V ? https://seo-videos.collegephysicsanswers.com/ch21/pe69/ed1ch21pe69.mp4 92 186 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-mass-deep-breath-air-having-volume-200-l-b-discuss-effect-taking-such (a) What is the mass of a deep breath of air having a volume of 2.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe03/thumbs-ed1ch11pe03-00002.png (a) What is the mass of a deep breath of air having a volume of 2.00 L? (b) Discuss the effect taking such a breath has on your body's volume and density. https://seo-videos.collegephysicsanswers.com/ch11/pe03/ed1ch11pe03.mp4 52 245 5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-glass-rod-rubbed-against-silk-which-following-statements-true-electrons-are When a glass rod is rubbed against silk, which of the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap01/thumbs-ed1ch18ap01-00002.png When a glass rod is rubbed against silk, which of the following statements is true? (a) Electrons are removed from the silk.(b) Electrons are removed from the rod.(c) Protons are removed from the silk.(d) Protons are removed from the rod. https://seo-videos.collegephysicsanswers.com/ch18/ap01/ed1ch18ap01.mp4 24 2018-06-14 yes 2018-06-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/greatest-ocean-depths-earth-are-found-marianas-trench-near-philippines-calculate The greatest ocean depths on the Earth are found in the Marianas… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe15/thumbs-ed1ch11pe15-00002.png The greatest ocean depths on the Earth are found in the Marianas Trench near the Philippines. Calculate the pressure due to the ocean at the bottom of this trench, given its depth is 11.0 km and assuming the density of seawater is constant all the way down. https://seo-videos.collegephysicsanswers.com/ch11/pe15/ed1ch11pe15.mp4 79 572 4 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/team-eight-dogs-pulls-sled-waxed-wood-runners-wet-snow-mush-dogs-have-average A team of eight dogs pulls a sled with waxed wood runners on wet snow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe06/thumbs-ed1ch05pe06-00002.png A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average masses of 19.0 kg, and the loaded sled with its rider has a mass of 210 kg. (a) Calculate the magnitude of the acceleration starting from rest if each dog exerts an average force of 185 N backward on the snow. (b) What is the magnitude of the acceleration once the sled starts to move? (c) For both situations, calculate the magnitude of the force in the coupling between the dogs and the sled. https://seo-videos.collegephysicsanswers.com/ch05/pe06/ed1ch05pe06.mp4 415 727 4.4 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-will-be-net-charge-object-which-attracts-neutral-pieces-paper-repels What will be the net charge on an object which attracts neutral… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap05/thumbs-ed1ch18ap05-00002.png What will be the net charge on an object which attracts neutral pieces of paper but repels a negatively charged balloon? (a) negative(b) positive(c) neutral(d) cannot be determined https://seo-videos.collegephysicsanswers.com/ch18/ap05/ed1ch18ap05.mp4 65 2018-06-14 yes 2018-06-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-force-exerted-one-side-850-cm-110-cm-sheet-paper-atmosphere-how-can How much force is exerted on one side of an 8.50 cm by 11.0 cm sheet… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe19/thumbs-ed1ch11pe19-00002.png How much force is exerted on one side of an 8.50 cm by 11.0 cm sheet of paper by the atmosphere? How can the paper withstand such a force? https://seo-videos.collegephysicsanswers.com/ch11/pe19/ed1ch11pe19.mp4 76 391 3.3 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-two-neutral-objects-are-rubbed-against-each-other-first-one-gains-net When two neutral objects are rubbed against each other, the first one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap06/thumbs-ed1ch18ap06-00002.png When two neutral objects are rubbed against each other, the first one gains a net charge of 3e. Which of the following statements is true? (a) The second object gains 3e and is negatively charge(b) The second object loses 3e and is negatively charge(c) The second object gains 3e and is positively charge(d) The second object loses 3e and is positively charged. https://seo-videos.collegephysicsanswers.com/ch18/ap06/ed1ch18ap06.mp4 61 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/charges-two-identical-metal-spheres-placed-closed-system-are-240times-1010 The charges on two identical metal spheres (placed in a closed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap10/thumbs-ed1ch18ap10-00002.png The charges on two identical metal spheres (placed in a closed system) are -2.40 x 10^{10-17} C and -4.8 x 10^{-17} C . (a) How many electrons will be equivalent to the charge on each sphere?(b) If the two spheres are brought in contact and then separated, find the charge on each sphere.(c) Calculate the number of electrons that would be equivalent to the resulting charge on each sphere. https://seo-videos.collegephysicsanswers.com/ch18/ap10/ed1ch18ap10.mp4 116 2 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-coffee-mug-circular-cross-section-and-vertical-sides-uniform Suppose you have a coffee mug with a circular cross section and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe05/ed1ch11pe05b-thumbnail.jpg Suppose you have a coffee mug with a circular cross section and vertical sides (uniform radius). What is its inside radius if it holds 375 g of coffee when filled to a depth of 7.50 cm? Assume coffee has the same density as water. https://seo-videos.collegephysicsanswers.com/ch11/pe05/ed1ch11pe05b.mp4 204 611 3.8 2024-01-10 yes 2024-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/terminal-velocity-person-falling-air-depends-upon-weight-and-area-person-facing The terminal velocity of a person falling in air depends upon the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe20/thumbs-ed1ch05pe20-00002.png The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. Find the terminal velocity (in meters per second and kilometers per hour) of an 80.0-kg skydiver falling in a headfirst position with a surface area of 0.140 m ^2. https://seo-videos.collegephysicsanswers.com/ch05/pe20/ed1ch05pe20.mp4 113 1098 3.1 2019-11-18 yes 2019-11-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/trash-compactor-can-reduce-volume-its-contents-0350-their-original-value A trash compactor can reduce the volume of its contents to 0.350… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe07/thumbs-ed1ch11pe07-00002.png A trash compactor can reduce the volume of its contents to 0.350 their original value. Neglecting the mass of air expelled, by what factor is the density of the rubbish increased? https://seo-videos.collegephysicsanswers.com/ch11/pe07/ed1ch11pe07.mp4 69 260 4.4 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/shown-figure-below-two-metal-balls-are-suspended-and-negatively-charged-rod As shown in the figure below, two metal balls are suspended and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap19/thumbs-ed1ch18ap19-00002.png As shown in the figure below, two metal balls are suspended and a negatively charged rod is brought close to them. (a) If the two balls are in contact with each other what will be the charges on each ball?(b) Explain how the balls get these charges.(c) What will happen to the charge on the second ball (i.e., the ball further away from the rod) if it is momentarily grounded while the rod is still there?(d) If (instead of grounding) the second ball is moved away and then the rod is removed from the first ball, will the two balls have induced charges? If yes, what will be the charges? If no, why not? https://seo-videos.collegephysicsanswers.com/ch18/ap19/ed1ch18ap19.mp4 93 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-field-created-two-parallel-metal-plates-shown-above-where-will-electric The electric field created by two parallel metal plates is shown… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap22/thumbs-ed1ch18ap22-00002.png The electric field created by two parallel metal plates is shown above. Where will the electric field be strongest? (a) Point A(b) Point B(c) Point C(d) Same at all points https://seo-videos.collegephysicsanswers.com/ch18/ap22/ed1ch18ap22.mp4 50 4 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-must-be-exerted-master-cylinder-hydraulic-lift-support-weight-2000-kg What force must be exerted on the master cylinder of a hydraulic lift… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe25/thumbs-ed1ch11pe25-00002.png What force must be exerted on the master cylinder of a hydraulic lift to support the weight of a 2000-kg car (a large car) resting on the slave cylinder? The master cylinder has a 2.00-cm diameter and the slave has a 24.0-cm diameter. https://seo-videos.collegephysicsanswers.com/ch11/pe25/ed1ch11pe25.mp4 111 719 5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-measure-standing-persons-blood-pressure-placing-cuff-his-leg-0500-m Suppose you measure a standing person's blood pressure by placing the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe33/thumbs-ed1ch11pe33-00002.png Suppose you measure a standing person's blood pressure by placing the cuff on his leg 0.500 m below the heart. Calculate the pressure you would observe (in units of mm Hg) if the pressure at the heart were 120 over 80 mm Hg. Assume that there is no loss of pressure due to resistance in the circulatory system (a reasonable assumption, since major arteries are large). https://seo-videos.collegephysicsanswers.com/ch11/pe33/ed1ch11pe33.mp4 88 389 5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-electrostatic-force-gravitational-force-between-two-electrons-will (a) Find the ratio of the electrostatic force to the gravitational… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap30/thumbs-ed1ch18ap30-00002.png (a) Find the ratio of the electrostatic force to the gravitational force between two electrons.(b) Will this ratio change if the two electrons are replaced by protons? If yes, find the new ratio. https://seo-videos.collegephysicsanswers.com/ch18/ap30/ed1ch18ap30.mp4 105 2 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-particles-charges-2q-and-q-are-separated-distance-r-2q-particle-has-0 Two particles with charges +2q and +q are separated by a distance r.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap32/thumbs-ed1ch18ap32-00002.png Two particles with charges +2q and +q are separated by a distance r. The +2q particle has an electric field E at distance r and exerts a force F on the +q particle. When the +q particle is replaced by a +3q particle, what will be the electric field and force from the +2q particle experienced by the +3q particle? (a) E/3, 3F(b) E, 3F(c) E/3, F(d) E,F https://seo-videos.collegephysicsanswers.com/ch18/ap32/ed1ch18ap32.mp4 109 2 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/force-responsible-holding-atom-together-frictional-electric-gravitational The force responsible for holding an atom together is (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap34/thumbs-ed1ch18ap34-00002.png The force responsible for holding an atom together is (a) frictional(b) electric(c) gravitational(d) magnetic https://seo-videos.collegephysicsanswers.com/ch18/ap34/ed1ch18ap34.mp4 21 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-hydraulic-system-designed-exert-force-100-times-large-one-put-it-what A certain hydraulic system is designed to exert a force 100 times as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe27/thumbs-ed1ch11pe27-00002.png A certain hydraulic system is designed to exert a force 100 times as large as the one put into it. (a) What must be the ratio of the area of the slave cylinder to the area of the master cylinder? (b) What must be the ratio of their diameters? (c) By what factor is the distance through which the output force moves reduced relative to the distance through which the input force moves? Assume no losses to friction. https://seo-videos.collegephysicsanswers.com/ch11/pe27/ed1ch11pe27.mp4 286 632 3.3 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-force-exerted-due-particle-having-charge-32times-10-19textrm-c-another Find the force exerted due to a particle having a charge of 3.2 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap36/thumbs-ed1ch18ap36-00002.png Find the force exerted due to a particle having a charge of 3.2 x 10^{-19} C on another identical particle 5 cm away. https://seo-videos.collegephysicsanswers.com/ch18/ap36/ed1ch18ap36.mp4 50 2 2021-03-05 yes 2021-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1867-below-represents-electric-field-vicinity-three-small-charged-objects Figure 18.67 below represents the electric field in the vicinity of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap41/thumbs-ed1ch18ap41-00002.png Figure 18.67 below represents the electric field in the vicinity of three small charged objects, R, S, and T. The objects have charges −q, +2q, and −q, respectively, and are located on the x-axis at −d, 0, and d. Field vectors of very large magnitude are omitted for clarity. (a) (a) Briefly describe the characteristics of the field diagram that indicate that the sign of the charges of objects R and T is negative and that the sign of the charge of object S is positive.(b) Briefly describe the characteristics of the field diagram that indicate that the magnitudes of the charges of objects R and T are equal and that the magnitude of the charge of object S is about twice that of objects R and T. For the following parts, an electric field directed to the right is defined to be positive. (a) On the axes below in Figure 18.68, sketch a graph of the electric field E along the x-axis as a function of position x.(b) Write an expression for the electric field E along the x-axis as a function of position x in the region between objects S and T in terms of q, d, and fundamental constants, as appropriate.(c) Your classmate tells you there is a point between S and T where the electric field is zero. Determine whether this statement is true, and explain your reasoning using two of the representations from parts (a), (b), or (c). https://seo-videos.collegephysicsanswers.com/ch18/ap41/ed1ch18ap41.mp4 727 4 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/immersion-measurement-womans-density-she-found-have-mass-620-kg-air-and-apparent In an immersion measurement of a woman's density, she is found to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe43/thumbs-ed1ch11pe43-00002.png In an immersion measurement of a woman's density, she is found to have a mass of 62.0 kg in air and an apparent mass of 0.0850 kg when completely submerged with lungs empty. (a) What mass of water does she displace? (b) What is her volume? (c) Calculate her density. (d) If her lung capacity is 1.75 L, is she able to float without treading water with her lungs filled with air? https://seo-videos.collegephysicsanswers.com/ch11/pe43/ed1ch11pe43.mp4 239 464 3.6 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-buoyant-force-200-l-helium-balloon-b-given-mass-rubber-balloon-150-g (a) Calculate the buoyant force on a 2.00-L helium balloon. (b) Given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe45/thumbs-ed1ch11pe45-00002.png (a) Calculate the buoyant force on a 2.00-L helium balloon. (b) Given the mass of the rubber in the balloon is 1.50 g, what is the net vertical force on the balloon if it is let go? You can neglect the volume of the rubber. https://seo-videos.collegephysicsanswers.com/ch11/pe45/ed1ch11pe45.mp4 196 341 3 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/750-kg-man-floats-freshwater-300-his-volume-above-water-when-his-lungs-are-empty (a) A 75.0-kg man floats in freshwater with 3.00% of his volume above… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe53/thumbs-ed1ch11pe53-00002.png (a) A 75.0-kg man floats in freshwater with 3.00% of his volume above water when his lungs are empty, and 5.00% of his volume above water when his lungs are full. Calculate the volume of air he inhales—called his lung capacity—in liters. (b) Does this lung volume seem reasonable? https://seo-videos.collegephysicsanswers.com/ch11/pe53/ed1ch11pe53.mp4 131 60 2.8 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/logs-sometimes-float-vertically-lake-because-one-end-has-become-water-logged-and Logs sometimes float vertically in a lake because one end has become… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe37/thumbs-ed1ch11pe37-00002.png Logs sometimes float vertically in a lake because one end has become water-logged and denser than the other. What is the average density of a uniform-diameter log that floats with 20.0% of its length above water? https://seo-videos.collegephysicsanswers.com/ch11/pe37/ed1ch11pe37.mp4 136 241 4.5 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/contestant-winter-sporting-event-pushes-450-kg-block-ice-across-frozen-lake A contestant in a winter sporting event pushes a 45.0-kg block of ice… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe18/thumbs-ed1ch05pe18-00002.png A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake as shown in Figure 5.21(a). (a) Calculate the minimum force F he must exert to get the block moving. (b) What is the magnitude of its acceleration once it starts to move, if that force is maintained? https://seo-videos.collegephysicsanswers.com/ch05/pe18/ed1ch05pe18.mp4 416 1690 3.8 2019-11-18 yes 2019-11-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-wrestling-match-150-kg-wrestler-briefly-stands-one-hand-during-maneuver During a wrestling match, a 150 kg wrestler briefly stands on one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe30/thumbs-ed1ch05pe30-00002.png During a wrestling match, a 150 kg wrestler briefly stands on one hand during a maneuver designed to perplex his already moribund adversary. By how much does the upper arm bone shorten in length? The bone can be represented by a uniform rod 38.0 cm in length and 2.10 cm in radius. https://seo-videos.collegephysicsanswers.com/ch05/pe30/ed1ch05pe30.mp4 115 460 4.3 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/identify-parent-nuclide-and-write-complete-decay-equation Identify the parent nuclide and write the complete decay equation in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe26/thumbs-ed1ch31pe26-00002.png Identify the parent nuclide and write the complete decay equation in the ^ A _ Z X _ N notation: \beta^- decay producing ^{90} Y . The parent nuclide is a major waste product of reactors and has chemistry similar to calcium, so that it is concentrated in bones if ingested (^{90} Y is also radioactive.) https://seo-videos.collegephysicsanswers.com/ch31/pe26/ed1ch31pe26.mp4 83 28 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-your-body-has-density-995-kgm3-what-fraction-you-will-be-submerged-when If your body has a density of 995 kg/m ^3, what fraction of you will… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe39/thumbs-ed1ch11pe39-00002.png If your body has a density of 995 kg/m ^3, what fraction of you will be submerged when floating gently in: (a) Freshwater? (b) Salt water, which has a density of 1027 kg/m ^3 ? https://seo-videos.collegephysicsanswers.com/ch11/pe39/ed1ch11pe39.mp4 146 637 4.2 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-factor-does-drag-force-car-increase-it-goes-65-110-kmh By what factor does the drag force on a car increase as it goes from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe24/thumbs-ed1ch05pe24-00002.png By what factor does the drag force on a car increase as it goes from 65 to 110 km/h? https://seo-videos.collegephysicsanswers.com/ch05/pe24/ed1ch05pe24.mp4 77 586 3.7 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/identify-parent-nuclide-and-write-complete-decay-equation-1 Identify the parent nuclide and write the complete decay equation in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe28/thumbs-ed1ch31pe28-00002.png Identify the parent nuclide and write the complete decay equation in the ^ A _ Z X _ N notation: \alpha decay producing ^{208} Pb . The parent nuclide is in the decay series produced by ^{232} Th , the only naturally occurring isotope of thorium. https://seo-videos.collegephysicsanswers.com/ch31/pe28/ed1ch31pe28.mp4 73 28 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rock-mass-540-g-air-found-have-apparent-mass-342-g-when-submerged-water-what A rock with a mass of 540 g in air is found to have an apparent mass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe41/thumbs-ed1ch11pe41-00002.png A rock with a mass of 540 g in air is found to have an apparent mass of 342 g when submerged in water. (a) What mass of water is displaced? (b) What is the volume of the rock? (c) What is its average density? Is this consistent with the value for granite? https://seo-videos.collegephysicsanswers.com/ch11/pe41/ed1ch11pe41.mp4 138 636 3.9 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-water-raised-capillary-action-height-500-cm-glass-tube-what-height-will Suppose water is raised by capillary action to a height of 5.00 cm in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe63/thumbs-ed1ch11pe63-00002.png Suppose water is raised by capillary action to a height of 5.00 cm in a glass tube. (a) To what height will it be raised in a paraffin tube of the same radius? (b) In a silver tube of the same radius? https://seo-videos.collegephysicsanswers.com/ch11/pe63/ed1ch11pe63.mp4 151 29 3.3 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-can-chew-through-very-tough-objects-your-incisors-because-they-exert-large You can chew through very tough objects with your incisors because… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe69/thumbs-ed1ch11pe69-00002.png You can chew through very tough objects with your incisors because they exert a large force on the small area of a pointed tooth. What pressure in pascals can you create by exerting a force of 500 N with your tooth on an area of 1.00 mm ^2? https://seo-videos.collegephysicsanswers.com/ch11/pe69/ed1ch11pe69.mp4 24 31 5 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-magnetic-force-positive-charge-moves-shown-each-six-cases-shown What is the direction of the magnetic force on a positive charge that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe01/thumbs-ed1ch22pe01-00002.png What is the direction of the magnetic force on a positive charge that moves as shown in each of the six cases shown in Figure 22.50? https://d1igkeoc1zsqhw.cloudfront.net/ch22/pe01/ed1ch22pe01.mp4 179 567 4.7 2018-05-15 no 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/microwave-ovens-rotate-rate-about-6-revmin-what-revolutions-second-what-angular Microwave ovens rotate at a rate of about 6 rev/min. What is this in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe02/thumbs-ed1ch06pe02-00002.png Microwave ovens rotate at a rate of about 6 rev/min. What is this in revolutions per second? What is the angular velocity in radians per second? https://seo-videos.collegephysicsanswers.com/ch06/pe02/ed1ch06pe02.mp4 58 863 4.3 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-magnetic-field-produces-magnetic-force-positive-charge-shown-each What is the direction of the magnetic field that produces the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe05/thumbs-ed1ch22pe05-00002.png What is the direction of the magnetic field that produces the magnetic force on a positive charge as shown in each of the three cases in the figure below, assuming B is perpendicular to v? https://seo-videos.collegephysicsanswers.com/ch22/pe05/ed1ch22pe05.mp4 108 245 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-charge-electron-family-number-and-total-number-nucleons-are-all-5 Confirm that charge, electron family number, and the total number of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe32/thumbs-ed1ch31pe32-00002.png Confirm that charge, electron family number, and the total number of nucleons are all conserved by the rule for β− decay given in the equation {}^ A _ Z X _ N \to {}^ A _{ Z -1} Y _{ N +1} + \beta^+ + \nu_e. To do this, identify the values of each before and after the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe32/ed1ch31pe32.mp4 111 16 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-magnitude-force-aluminum-rod-0100-mutextrmc-charge-you-pass-between What is the maximum magnitude of the force on an aluminum rod with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe07/thumbs-ed1ch22pe07-00002.png What is the maximum magnitude of the force on an aluminum rod with a 0.100 \mu C charge that you pass between the poles of a 1.50 T permanent magnet at a speed of 5.00 m/s? In what direction is the force? https://seo-videos.collegephysicsanswers.com/ch22/pe07/ed1ch22pe07.mp4 92 383 4.1 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cosmic-ray-proton-moving-toward-earth-500-times-107-ms-experiences-magnetic (a) A cosmic ray proton moving toward the Earth at 5.00 x 10^7 m/s … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe09/thumbs-ed1ch22pe09-00002.png (a) A cosmic ray proton moving toward the Earth at 5.00 x 10^7 m/s experiences a magnetic force of 1.70 x 10^{-16} N . What is the strength of the magnetic field if there is a 45° angle between it and the proton’s velocity? (b) Is the value obtained in part (a) consistent with the known strength of the Earth’s magnetic field on its surface? Discuss. https://seo-videos.collegephysicsanswers.com/ch22/pe09/ed1ch22pe09.mp4 103 376 4.5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-velocity-negative-charge-experiences-magnetic-force-shown-each What is the direction of the velocity of a negative charge that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe03/thumbs-ed1ch22pe03-00002.png What is the direction of the velocity of a negative charge that experiences the magnetic force shown in each of the three cases in Figure 22.51, assuming it moves perpendicular to B. https://seo-videos.collegephysicsanswers.com/ch22/pe03/ed1ch22pe03.mp4 164 235 4 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-period-rotation-earth-seconds-b-what-angular-velocity-earth-c-given-earth (a) What is the period of rotation of Earth in seconds? (b) What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe04/thumbs-ed1ch06pe04-00002.png (a) What is the period of rotation of Earth in seconds? (b) What is the angular velocity of Earth? (c) Given that Earth has a radius of 6.4 x 10^{6} m at its equator, what is the linear velocity at Earth's surface? https://seo-videos.collegephysicsanswers.com/ch06/pe04/ed1ch06pe04.mp4 72 687 3.8 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/proton-moves-750-times-107-ma-perpendicular-magnetic-field-field-causes-proton A proton moves at 7.50 x 10^7 m/a perpendicular to a magnetic field.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe13/thumbs-ed1ch22pe13-00002.png A proton moves at 7.50 x 10^7 m/a perpendicular to a magnetic field. The field causes the proton to travel in a circular path of radius 0.800 m. What is the field strength? https://seo-videos.collegephysicsanswers.com/ch22/pe13/ed1ch22pe13.mp4 66 580 4.7 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/velocity-selector-mass-spectrometer-uses-0100-t-magnetic-field-what-electric A velocity selector in a mass spectrometer uses a 0.100-T magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe17/thumbs-ed1ch22pe17-00002.png A velocity selector in a mass spectrometer uses a 0.100-T magnetic field. (a) What electric field strength is needed to select a speed of 4.00 x 10^6 m/s ? (b) What is the voltage between the plates if they are separated by 1.00 cm? https://seo-videos.collegephysicsanswers.com/ch22/pe17/ed1ch22pe17.mp4 100 339 3.3 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ordinary-workshop-grindstone-has-radius-750-cm-and-rotates-6500-revmin-calculate An ordinary workshop grindstone has a radius of 7.50 cm and rotates… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe14/thumbs-ed1ch06pe14-00002.png An ordinary workshop grindstone has a radius of 7.50 cm and rotates at 6500 rev/min. (a) Calculate the magnitude of the centripetal acceleration at its edge in meters per second squared and convert it to multiples of g. (b) What is the linear speed of a point on its edge? https://seo-videos.collegephysicsanswers.com/ch06/pe14/ed1ch06pe14.mp4 109 813 5 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/oxygen-16-ion-mass-266-times-10-26-kg-travels-500-times-106-ms-perpendicular-120 (a) An oxygen-16 ion with a mass of 2.66 x 10^{-26} kg travels at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe15/thumbs-ed1ch22pe15-00002.png (a) An oxygen-16 ion with a mass of 2.66 x 10^{-26} kg travels at 5.00 x 10^6 m/s perpendicular to a 1.20-T magnetic field, which makes it move in a circular arc with a 0.231-m radius. What positive charge is on the ion? (b) What is the ratio of this charge to the charge of an electron? (c) Discuss why the ratio found in (b) should be an integer. https://seo-videos.collegephysicsanswers.com/ch22/pe15/ed1ch22pe15.mp4 96 283 4.1 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/triply-charged-uranium-235-and-uranium-238-ions-are-being-separated-mass (a) Triply charged uranium-235 and uranium-238 ions are being… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe21/thumbs-ed1ch22pe21-00002.png (a) Triply charged uranium-235 and uranium-238 ions are being separated in a mass spectrometer. (The much rarer uranium-235 is used as reactor fuel.) The masses of the ions are 3.90 x 10^{-25} kg and 3.95 x 10^{-25} kg , respectively, and the travel at 3.00 x 10^5 m/s in a 0.250 T field. What is the separation between their paths when they hit a target after traversing a semicircle? (b) Discuss whether this distance between their paths seems to be big enough to be practical in the separation of uranium-235 from uranium-238. https://seo-videos.collegephysicsanswers.com/ch22/pe21/ed1ch22pe21.mp4 296 137 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-between-wire-carrying-800-current-and-120-t-field-it-if-500-cm-wire (a) What is the angle between a wire carrying an 8.00-A current and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe39/thumbs-ed1ch22pe39-00002.png (a) What is the angle between a wire carrying an 8.00-A current and the 1.20-T field it is in if 50.0 cm of the wire experiences a magnetic force of 2.40 N? (b) What is the force on the wire if it is rotated to make an angle of 90° with the field? https://seo-videos.collegephysicsanswers.com/ch22/pe39/ed1ch22pe39.mp4 63 142 3.7 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-percent-torque-motor-decreased-if-its-permanent-magnets-lose-50-their (a) By how many percent is the torque of a motor decreased if its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe41/thumbs-ed1ch22pe41-00002.png (a) By how many percent is the torque of a motor decreased if its permanent magnets lose 5.0% of their strength? (b) How many percent would the current need to be increased to return the torque to original values? https://seo-videos.collegephysicsanswers.com/ch22/pe41/ed1ch22pe41.mp4 203 85 4.4 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-magnetic-force-current-each-six-cases-figure-2253 What is the direction of the magnetic force on the current in each of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe31/thumbs-ed1ch22pe31-00002.png What is the direction of the magnetic force on the current in each of the six cases in Figure 22.53? https://seo-videos.collegephysicsanswers.com/ch22/pe31/ed1ch22pe31.mp4 129 260 5 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-magnetic-field-produces-magnetic-force-shown-currents-each-three What is the direction of the magnetic field that produces the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe33/thumbs-ed1ch22pe33-00002.png What is the direction of the magnetic field that produces the magnetic force shown on the currents in each of the three cases in Figure 22.55, assuming B is perpendicular to I? https://seo-videos.collegephysicsanswers.com/ch22/pe33/ed1ch22pe33.mp4 75 127 5 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/positively-charged-object-certain-electric-field-currently-being-pushed-west A positively charged object in a certain electric field is currently… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap02/thumbs-ed1ch19ap02-00002.png A positively charged object in a certain electric field is currently being pushed west by the resulting force. How will the force change if the charge grows? What if it becomes negative? https://seo-videos.collegephysicsanswers.com/ch19/ap02/ed1ch19ap02.mp4 54 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/proton-has-magnetic-field-due-its-spin-its-axis-field-similar-created-circular A proton has a magnetic field due to its spin on its axis. The field… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe47/thumbs-ed1ch22pe47-00002.png A proton has a magnetic field due to its spin on its axis. The field is similar to that created by a circular current loop 0.650 x 10^{-15} m in radius with a current of 1.05 x 10^4 A (no kidding). Find the maximum torque on a proton in a 2.50 T field. (This is a significant torque on a small particle.) https://seo-videos.collegephysicsanswers.com/ch22/pe47/ed1ch22pe47.mp4 67 63 5 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/charged-object-has-net-force-100-n-east-acting-it-due-electric-field-50-nc A charged object has a net force of 100 N east acting on it due to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap04/thumbs-ed1ch19ap04-00002.png A charged object has a net force of 100 N east acting on it due to an electric field of 50 N/C pointing north. How is this possible? If not, why not? https://seo-videos.collegephysicsanswers.com/ch19/ap04/ed1ch19ap04.mp4 47 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/force-meter-between-two-wires-jumper-cable-being-used-start-stalled-car-0225-nm The force per meter between the two wires of a jumper cable being… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe51/thumbs-ed1ch22pe51-00002.png The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.225 N/m. (a) What is the current in the wires, given they are separated by 2.00 cm? (b) Is the force attractive or repulsive? https://seo-videos.collegephysicsanswers.com/ch22/pe51/ed1ch22pe51.mp4 186 232 5 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-exercise-2248-loop-lying-flat-ground-its-current-circulating Repeat Exercise 22.48, but with the loop lying flat on the ground… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe49/thumbs-ed1ch22pe49-00002.png Repeat Exercise 22.48, but with the loop lying flat on the ground with its current circulating counterclockwise (when viewed from above) in a location where the Earth’s field is north, but at an angle 45.0° below the horizontal and with a strength of 6.00 x 10^{-5} T .**Exercise 22.48**: (a) A 200-turn circular loop of radius 50.0 cm is vertical, with its axis on an east-west line. A current of 100 A circulates clockwise in the loop when viewed from the east. The Earth’s field here is due north, parallel to the ground, with a strength of 3.00 x 10^{-5} T . What are the direction and magnitude of the torque on the loop? (b) Does this device have any practical applications as a motor? https://seo-videos.collegephysicsanswers.com/ch22/pe49/ed1ch22pe49.mp4 129 74 4 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-example-car-or-other-vehicle-battery-and-compute-how-many-aaa-batteries Find an example car (or other vehicle) battery, and compute how many… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap08/thumbs-ed1ch19ap08-00002.png Find an example car (or other vehicle) battery, and compute how many of the AAA batteries in the previous problem it would take to equal the energy stored in it. Which is more compact? https://seo-videos.collegephysicsanswers.com/ch19/ap08/ed1ch19ap08.mp4 72 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wire-carrying-400-motor-commuter-train-feels-attractive-force-400-times-10-3-nm The wire carrying 400 A to the motor of a commuter train feels an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe53/thumbs-ed1ch22pe53-00002.png The wire carrying 400 A to the motor of a commuter train feels an attractive force of 4.00 x 10^{-3} N/m due to a parallel wire carrying 5.00 A to a headlight. (a) How far apart are the wires? (b) Are the currents in the same direction? https://seo-videos.collegephysicsanswers.com/ch22/pe53/ed1ch22pe53.mp4 67 126 4.2 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2257-shows-long-straight-wire-near-rectangular-current-loop-what Figure 22.57 shows a long straight wire near a rectangular current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe55/thumbs-ed1ch22pe55-00002.png Figure 22.57 shows a long straight wire near a rectangular current loop. What is the direction and magnitude of the total force on the loop? https://seo-videos.collegephysicsanswers.com/ch22/pe55/ed1ch22pe55.mp4 289 361 4.1 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/take-square-configuration-point-charges-two-positive-and-two-negative-all-same-0 Take a square configuration of point charges, two positive and two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap14/thumbs-ed1ch19ap14-00002.png Take a square configuration of point charges, two positive and two negative, all of the same magnitude, with like charges sharing diagonals. What will happen to the internal energy of this system if the sides of the square decrease in length? https://seo-videos.collegephysicsanswers.com/ch19/ap14/ed1ch19ap14.mp4 288 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/system-has-200-mc-charges-50-cm-0-and-50-cm-0-and-100-mc-charge-0-70-cm-velocity A system has 2.00 μC charges at (50 cm, 0) and (−50 cm, 0) and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap15/thumbs-ed1ch19ap15-00002.png A system has 2.00 μC charges at (50 cm, 0) and (−50 cm, 0) and a −1.00 μC charge at (0, 70 cm), with a velocity in the –y-direction. When the −1.00 μC charge is at (0, 0) the potential energy is at a \_\_\_ and the kinetic energy is \_\_\_. (a) maximum, maximum(b) maximum, minimum(c) minimum, maximum(d) minimum, minimum https://seo-videos.collegephysicsanswers.com/ch19/ap15/ed1ch19ap15.mp4 127 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-velocity-electron-goes-through-10-v-potential-after-initially-being-rest What is the velocity of an electron that goes through a 10 V… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap16/thumbs-ed1ch19ap16-00002.png What is the velocity of an electron that goes through a 10 V potential after initially being at rest? https://seo-videos.collegephysicsanswers.com/ch19/ap16/ed1ch19ap16.mp4 75 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fairground-ride-spins-its-occupants-inside-flying-saucer-shaped-container-if A fairground ride spins its occupants inside a flying saucer-shaped… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe10/thumbs-ed1ch06pe10-00002.png A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follow has an 8.00 m radius, at how many revolutions per minute will the riders be subjected to a centripetal acceleration whose magnitude is 1.50 times that due to gravity? https://seo-videos.collegephysicsanswers.com/ch06/pe10/ed1ch06pe10.mp4 87 936 3.9 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-directions-fields-center-loop-and-coils-shown-figure-2260 What are the directions of the fields in the center of the loop and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe59/thumbs-ed1ch22pe59-00002.png What are the directions of the fields in the center of the loop and coils shown in Figure 22.60? https://seo-videos.collegephysicsanswers.com/ch22/pe59/ed1ch22pe59.mp4 95 192 4 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-flow-rate-textrmcm3textrms-gasoline-engine-car-traveling-100-kmh-if What is the average flow rate in cm ^3 /s of gasoline to the engine… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe01/thumbs-ed1ch12pe01-00002.png What is the average flow rate in cm ^3 /s of gasoline to the engine of a car traveling at 100 km/h if it averages 10.0 km/L? https://d1igkeoc1zsqhw.cloudfront.net/ch12/pe01/ed1ch12pe01.mp4 89 392 4.7 2018-05-25 no 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-electric-potential-isoline-graph-has-isolines-every-50-v-if-six-these A certain electric potential isoline graph has isolines every 5.0 V.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap23/thumbs-ed1ch19ap23-00002.png A certain electric potential isoline graph has isolines every 5.0 V. If six of these lines cross a 40 cm path drawn between two points of interest, what is the (magnitude of the average) electric field along this path? (a) 750 V/m(b) 150 V/m(c) 38 V/m(d) 75 V/m https://seo-videos.collegephysicsanswers.com/ch19/ap23/ed1ch19ap23.mp4 51 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/blood-pumped-heart-rate-50-lmin-aorta-radius-10-cm-determine-speed-blood-through Blood is pumped from the heart at a rate of 5.0 L/min into the aorta… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe03/thumbs-ed1ch12pe03-00002.png Blood is pumped from the heart at a rate of 5.0 L/min into the aorta (of radius 1.0 cm). Determine the speed of blood through the aorta. https://seo-videos.collegephysicsanswers.com/ch12/pe03/ed1ch12pe03.mp4 79 400 5 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-system-two-parallel-conducting-plates-held-fixed-potential-difference Given a system of two parallel conducting plates held at a fixed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap24/thumbs-ed1ch19ap24-00002.png Given a system of two parallel conducting plates held at a fixed potential difference, describe what happens to the isolines of the electric potential between them as the distance between them is changed. How does this relate to the electric field strength? https://seo-videos.collegephysicsanswers.com/ch19/ap24/ed1ch19ap24.mp4 174 2021-03-19 yes 2021-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/huka-falls-waikato-river-one-new-zealands-most-visited-natural-tourist The Huka Falls on the Waikato River is one of New Zealand's most… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe05/thumbs-ed1ch12pe05-00002.png The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist attractions (see Figure 12.29). On average the river has a flow rate of about 300,000 L/s. At the gorge, the river narrows to 20 m wide and averages 20 m deep. (a) What is the average speed of the river in the gorge? (b) What is the average speed of the water in the river downstream of the falls when it widens to 60 m and its depth increases to an average of 40 m? https://seo-videos.collegephysicsanswers.com/ch12/pe05/ed1ch12pe05.mp4 74 401 5 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ideal-speed-take-100-m-radius-curve-banked-200circ-angle What is the ideal speed to take a 100 m radius curve banked at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe26/thumbs-ed1ch06pe26-00002.png What is the ideal speed to take a 100 m radius curve banked at a 20.0° angle? https://seo-videos.collegephysicsanswers.com/ch06/pe26/ed1ch06pe26.mp4 327 815 4.6 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-work-necessary-keep-positive-point-charge-orbit-around-negative-point How much work is necessary to keep a positive point charge in orbit… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap29/thumbs-ed1ch19ap29-00002.png How much work is necessary to keep a positive point charge in orbit around a negative point charge? (a) A lot; this system is unstable.(b) Just a little; the isolines are far enough apart that crossing them doesn’t take much work.(c) None; we’re traveling along an isoline, which requires no work.(d) There’s not enough information to tell. https://seo-videos.collegephysicsanswers.com/ch19/ap29/ed1ch19ap29.mp4 44 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/estimate-time-it-would-take-fill-private-swimming-pool-capacity-80000-l-using (a) Estimate the time it would take to fill a private swimming pool… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe09/thumbs-ed1ch12pe09-00002.png (a) Estimate the time it would take to fill a private swimming pool with a capacity of 80,000 L using a garden hose delivering 60 L/min. (b) How long would it take to fill if you could divert a moderate size river, flowing at 5000 m ^3 /s , into it? https://seo-videos.collegephysicsanswers.com/ch12/pe09/ed1ch12pe09.mp4 64 169 5 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/existence-dwarf-planet-pluto-was-proposed-based-irregularities-neptunes-orbit The existence of the dwarf planet Pluto was proposed based on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe40/thumbs-ed1ch06pe40-00002.png The existence of the dwarf planet Pluto was proposed based on irregularities in Neptune's orbit. Pluto was subsequently discovered near its predicted position. But it now appears that the discovery was fortuitous, because Pluto is small and the irregularities in Neptune's orbit were not well known. To illustrate that Pluto has a minor effect on the orbit of Neptune compared with the closest planet to Neptune: (a) Calculate the acceleration due to gravity at Neptune due to Pluto when they are 4.50 x 10^{12} m apart, as they are at present. The mass of Pluto is 1.4 x 10^{22} kg . (b) Calculate the acceleration due to gravity at Neptune due to Uranus, presently about 2.50 x 10^{12} m apart, and compare it with that due to Pluto. The mass of Uranus is 8.62 x 10^{25} kg . https://seo-videos.collegephysicsanswers.com/ch06/pe40/ed1ch06pe40.mp4 64 358 3 2019-11-22 yes 2019-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/design-experiment-test-relative-permittivities-various-materials-and-briefly Design an experiment to test the relative permittivities of various… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap34/thumbs-ed1ch19ap34-00002.png Design an experiment to test the relative permittivities of various materials, and briefly describe some basic features of the results. https://seo-videos.collegephysicsanswers.com/ch19/ap34/ed1ch19ap34.mp4 268 2021-03-20 yes 2021-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-which-circular-parallel-plate-capacitor-circuit-battery-has-radius In an experiment in which a circular parallel plate capacitor in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap36/thumbs-ed1ch19ap36-00002.png In an experiment in which a circular parallel plate capacitor in a circuit with a battery has the radius and plate separation grow at the same relative rate, what will happen to the total charge on the capacitor? https://seo-videos.collegephysicsanswers.com/ch19/ap36/ed1ch19ap36.mp4 167 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-happens-energy-stored-circuit-you-increase-number-capacitors-connected What happens to the energy stored in a circuit as you increase the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap39/thumbs-ed1ch19ap39-00002.png What happens to the energy stored in a circuit as you increase the number of capacitors connected in parallel? Series? (a) increases, increases(b) increases, decreases(c) decreases, increases(d) decreases, decreases https://seo-videos.collegephysicsanswers.com/ch19/ap39/ed1ch19ap39.mp4 163 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-would-capacitance-capacitor-same-total-internal-energy-car-battery-example What would the capacitance of a capacitor with the same total… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap40/thumbs-ed1ch19ap40-00002.png What would the capacitance of a capacitor with the same total internal energy as the car battery in [Example 19.1](https://openstax.org/books/college-physics-ap-courses/pages/19-1-electric-potential-energy-potential-difference#fs-id896246) have to be? Can you explain why we use batteries instead of capacitors for this application? https://seo-videos.collegephysicsanswers.com/ch19/ap40/ed1ch19ap40.mp4 57 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-moving-velocity-200-ms-through-hose-internal-diameter-160-cm-what-flow Water is moving at a velocity of 2.00 m/s through a hose with an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe13/thumbs-ed1ch12pe13-00002.png Water is moving at a velocity of 2.00 m/s through a hose with an internal diameter of 1.60 cm. (a) What is the flow rate in liters per second? (b) The fluid velocity in this hose's nozzle is 15.0 m/s. What is the nozzle's inside diameter? https://seo-videos.collegephysicsanswers.com/ch12/pe13/ed1ch12pe13.mp4 139 509 2.4 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-parallel-plate-capacitor-metal-plates-each-square-shape-100-m-side-0 Consider a parallel plate capacitor with metal plates, each of square… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap43/thumbs-ed1ch19ap43-00002.png Consider a parallel plate capacitor with metal plates, each of square shape of 1.00 m on a side, separated by 1.00 mm. If the plates grow in area while the voltage is held fixed, the capacitance \_\_\_ and the stored energy \_\_\_. (a) decreases, decreases(b) decreases, increases(c) increases, decreases(d) increases, increases https://seo-videos.collegephysicsanswers.com/ch19/ap43/ed1ch19ap43.mp4 54 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-parallel-plate-capacitor-metal-plates-each-square-shape-100-m-side-2 Consider a parallel plate capacitor with metal plates, each of square… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap44/thumbs-ed1ch19ap44-00002.png Consider a parallel plate capacitor with metal plates, each of square shape of 1.00 m on a side, separated by 1.00 mm. What happens to the energy of this system if the area of the plates increases while the charge remains fixed? https://seo-videos.collegephysicsanswers.com/ch19/ap44/ed1ch19ap44.mp4 99 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-emerges-straight-down-faucet-180-cm-diameter-speed-0500-ms-because Water emerges straight down from a faucet with a 1.80-cm diameter at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe15/thumbs-ed1ch12pe15-00002.png Water emerges straight down from a faucet with a 1.80-cm diameter at a speed of 0.500 m/s. (Because of the construction of the faucet, there is no variation in speed across the stream.) (a) What is the flow rate in cm ^3 /s ? (b) What is the diameter of the stream 0.200 m below the faucet? Neglect any effects due to surface tension. https://seo-videos.collegephysicsanswers.com/ch12/pe15/ed1ch12pe15.mp4 340 160 5 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-pressure-reading-your-pitot-tube-150-mm-hg-speed-200-kmh-what-will-it-be-700 If the pressure reading of your pitot tube is 15.0 mm Hg at a speed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe19/thumbs-ed1ch12pe19-00002.png If the pressure reading of your pitot tube is 15.0 mm Hg at a speed of 200 km/h, what will it be at 700 km/h at the same altitude? https://seo-videos.collegephysicsanswers.com/ch12/pe19/ed1ch12pe19.mp4 194 611 3 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-magnitude-acceleration-due-gravity-surface-earth-due-moon-b-calculate (a) Calculate the magnitude of the acceleration due to gravity on the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe34/thumbs-ed1ch06pe34-00002.png (a) Calculate the magnitude of the acceleration due to gravity on the surface of Earth due to the Moon. (b) Calculate the magnitude of the acceleration due to gravity at Earth due to the Sun. (c) Take the ratio of the Moon's acceleration to the Sun's and comment on why the tides are predominantly due to the Moon in spite of this number. https://seo-videos.collegephysicsanswers.com/ch06/pe34/ed1ch06pe34.mp4 314 753 4 2019-11-22 yes 2019-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/every-few-years-winds-boulder-colorado-attain-sustained-speeds-450-ms-about-100 Every few years, winds in Boulder, Colorado, attain sustained speeds… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe21/thumbs-ed1ch12pe21-00002.png Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s (about 100 mi/h) when the jet stream descends during early spring. Approximately what is the force due to the Bernoulli effect on a roof having an area of 220 m ^2? Typical air density in Boulder is 1.14 kg/m ^3, and the corresponding atmospheric pressure is 8.89 x 10^4 N/m ^2. (Bernoulli's principle as stated in the text assumes laminar flow. Using the principle here produces only an approximate result, because there is significant turbulence.) https://seo-videos.collegephysicsanswers.com/ch12/pe21/ed1ch12pe21.mp4 114 725 5 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-car-takes-banked-curve-less-ideal-speed-friction-needed-keep-it-sliding If a car takes a banked curve at less than the ideal speed, friction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe30/thumbs-ed1ch06pe30-00002.png If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 100 m radius curve banked at 15.0°. (b) What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 20.0 km/h? https://seo-videos.collegephysicsanswers.com/ch06/pe30/ed1ch06pe30.mp4 899 987 3.4 2019-11-22 yes 2019-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-work-done-boy-pulling-his-sister-300-m-wagon-shown-figure-735-assume-no How much work is done by the boy pulling his sister 30.0 m in a wagon… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe06/thumbs-ed1ch07pe06-00002.png How much work is done by the boy pulling his sister 30.0 m in a wagon as shown in Figure 7.35? Assume no friction acts on the wagon. https://seo-videos.collegephysicsanswers.com/ch07/pe06/ed1ch07pe06.mp4 53 1086 5 2020-01-07 yes 2020-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-pressure-drop-due-bernoulli-effect-water-goes-300-cm-diameter-nozzle-900-cm (a) What is the pressure drop due to the Bernoulli effect as water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe23/thumbs-ed1ch12pe23-00002.png (a) What is the pressure drop due to the Bernoulli effect as water goes into a 3.00-cm-diameter nozzle from a 9.00-cm-diameter fire hose while carrying a flow of 40.0 L/s? (b) To what maximum height above the nozzle can this water rise? (The actual height will be significantly smaller due to air resistance.) https://seo-videos.collegephysicsanswers.com/ch12/pe23/ed1ch12pe23.mp4 312 824 2.4 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-350-g-kookaburra-large-kingfisher-bird-picks-75-g-snake-and-raises-it-25 Suppose a 350-g kookaburra (a large kingfisher bird) picks up a 75-g… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe18/thumbs-ed1ch07pe18-00002.png Suppose a 350-g kookaburra (a large kingfisher bird) picks up a 75-g snake and raises it 2.5 m from the ground to a branch. (a) How much work did the bird do on the snake? (b) How much work did it do to raise its own center of mass to the branch? https://seo-videos.collegephysicsanswers.com/ch07/pe18/ed1ch07pe18.mp4 96 795 3.8 2020-01-07 yes 2020-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hoover-dam-colorado-river-highest-dam-united-states-221-m-output-1300-mw-dam Hoover Dam on the Colorado River is the highest dam in the United… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe25/thumbs-ed1ch12pe25-00002.png Hoover Dam on the Colorado River is the highest dam in the United States at 221 m, with an output of 1300 MW. The dam generates electricity with water taken from a depth of 150 m and an average flow rate of 650 m ^3 /s . (a) Calculate the power in this flow. (b) What is the ratio of this power to the facility's average of 680 MW? https://seo-videos.collegephysicsanswers.com/ch12/pe25/ed1ch12pe25.mp4 129 487 5 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-fast-must-3000-kg-elephant-move-have-same-kinetic-energy-650-kg-sprinter (a) How fast must a 3000-kg elephant move to have the same kinetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe10/thumbs-ed1ch07pe10-00002.png (a) How fast must a 3000-kg elephant move to have the same kinetic energy as a 65.0-kg sprinter running at 10.0 m/ s? (b) Discuss how the larger energies needed for the movement of larger animals would relate to metabolic rates. https://seo-videos.collegephysicsanswers.com/ch07/pe10/ed1ch07pe10.mp4 99 749 3 2020-01-07 yes 2020-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/glucose-solution-being-administered-iv-has-flow-rate-300-cm3-textrmmin-what-will A glucose solution being administered with an IV has a flow rate of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe31/thumbs-ed1ch12pe31-00002.png A glucose solution being administered with an IV has a flow rate of 3.00 cm ^3 /min . What will the new flow rate be if the glucose is replaced by whole blood having the same density but a viscosity 2.50 times that of the glucose? All other factors remain constant. https://seo-videos.collegephysicsanswers.com/ch12/pe31/ed1ch12pe31.mp4 124 481 4.6 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-blood-vessels-radius-decreased-900-its-original-value-plaque-deposits (a) Suppose a blood vessel's radius is decreased to 90.0% of its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe37/thumbs-ed1ch12pe37-00002.png (a) Suppose a blood vessel's radius is decreased to 90.0% of its original value by plaque deposits and the body compensates by increasing the pressure difference along the vessel to keep the flow rate constant. By what factor must the pressure difference increase? (b) If turbulence is created by the obstruction, what additional effect would it have on the flow rate? https://seo-videos.collegephysicsanswers.com/ch12/pe37/ed1ch12pe37.mp4 141 318 3 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/left-ventricle-resting-adults-heart-pumps-blood-flow-rate-830-cm3textrms The left ventricle of a resting adult's heart pumps blood at a flow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe27/thumbs-ed1ch12pe27-00002.png The left ventricle of a resting adult's heart pumps blood at a flow rate of 83.0 cm ^3 /s , increasing its pressure by 110mm Hg, its speed from zero to 30.0 cm/s, and its height by 5.00 cm. (All numbers are averaged over the entire heartbeat.) Calculate the total power output of the left ventricle. Note that most of the power is used to increase blood pressure. https://seo-videos.collegephysicsanswers.com/ch12/pe27/ed1ch12pe27.mp4 78 210 4.7 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/750-kg-person-climbs-stairs-gaining-250-meters-height-find-work-done-accomplish A 75.0-kg person climbs stairs, gaining 2.50 meters in height. Find… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe02/thumbs-ed1ch07pe02-00002.png A 75.0-kg person climbs stairs, gaining 2.50 meters in height. Find the work done to accomplish this task. https://seo-videos.collegephysicsanswers.com/ch07/pe02/ed1ch07pe02.mp4 136 1402 4.5 2020-01-07 yes 2020-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-alpha-decay-equation-249textrmcf-b-find-energy-released-decay (a) Write the complete \alpha decay equation for {}^{249} Cf . (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe36/thumbs-ed1ch31pe36-00002.png (a) Write the complete \alpha decay equation for {}^{249} Cf . (b) Find the energy released in the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe36/ed1ch31pe36.mp4 166 53 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-reynolds-numbers-flow-water-through-nozzle-radius-0250-cm-and-b-garden Calculate the Reynolds numbers for the flow of water through (a) a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe53/thumbs-ed1ch12pe53-00002.png Calculate the Reynolds numbers for the flow of water through (a) a nozzle with a radius of 0.250 cm and (b) a garden hose with a radius of 0.900 cm, when the nozzle is attached to the hose. The flow rate through hose and nozzle is 0.500 L/s. Can the flow in either possibly be laminar? https://seo-videos.collegephysicsanswers.com/ch12/pe53/ed1ch12pe53.mp4 193 168 4 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-car-travels-108-km-speed-300-ms-and-uses-20-gal-gasoline-only-30 Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 2.0 gal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe04/thumbs-ed1ch07pe04-00002.png Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 2.0 gal of gasoline. Only 30% of the gasoline goes into useful work by the force that keeps the car moving at constant speed despite friction. (See Table 7.1 for the energy content of gasoline.) (a) What is the magnitude of the force exerted to keep the car moving at constant speed? (b) If the required force is directly proportional to speed, how many gallons will be used to drive 108 km at a speed of 28.0 m/s? https://seo-videos.collegephysicsanswers.com/ch07/pe04/ed1ch07pe04.mp4 244 931 4.4 2020-01-07 yes 2020-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-average-distances-oxygen-will-diffuse-given-time-air-and-water-why What is the ratio of the average distances that oxygen will diffuse… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe63/thumbs-ed1ch12pe63-00002.png What is the ratio of the average distances that oxygen will diffuse in a given time in air and water? Why is this distance less in water (equivalently, why is D less in water)? https://seo-videos.collegephysicsanswers.com/ch12/pe63/ed1ch12pe63.mp4 145 310 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/common-static-electricity-involves-charges-ranging-nanocoulombs-microcoulombs Common static electricity involves charges ranging from nanocoulombs… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe01/thumbs-ed1ch18pe01-00002.png Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many electrons are needed to form a charge of -2.00 nC (b) How many electrons must be removed from a neutral object to leave a net charge of 0.500 \mu C ? https://d1igkeoc1zsqhw.cloudfront.net/ch18/pe01/ed1ch18pe01.mp4 42 503 4.3 2018-06-06 no 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-electric-field-x-100-cm-figure-1852b-given-q-500-nc-b-find-total (a) Find the total electric field at x = 1.00 cm in Figure 18.52(b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe42/thumbs-ed1ch18pe15-00002.png (a) Find the total electric field at x = 1.00 cm in Figure 18.52(b) given that q = 5.00 nC . (b) Find the total electric field at x = 11.00 cm in Figure 18.52(b). (c) If the charges are allowed to move and eventually be brought to rest by friction, what will the final charge configuration be? (That is, will there be a single charge, double charge, etc., and what will its value(s) be?) https://seo-videos.collegephysicsanswers.com/ch18/pe42/ed1ch18pe15.mp4 372 255 4.2 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-strong-attractive-force-between-glass-rod-0700-mutextrmc-charge-and-silk (a) How strong is the attractive force between a glass rod with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe11/thumbs-ed1ch18pe25-00002.png (a) How strong is the attractive force between a glass rod with a 0.700 \mu C charge and a silk cloth with a -0.600 \mu C charge, which are 12.0 cm apart, using the approximation that they act like point charges? (b) Discuss how the answer to this problem might be affected if the charges are distributed over some area and do not act like point charges. https://seo-videos.collegephysicsanswers.com/ch18/pe11/ed1ch18pe25.mp4 74 346 3 2018-06-07 yes 2018-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-electric-field-center-triangular-configuration-charges-figure-1854-given-qa (a) Find the electric field at the center of the triangular… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe50/thumbs-ed1ch18pe23-00002.png (a) Find the electric field at the center of the triangular configuration of charges in Figure 18.54, given that q_a = +2.50 nC , q_b = -8.00 nC , and q_c = +1.50 nC . (b) Is there any combination of charges, other than q_a = q_b = q_c, that will produce a zero strength electric field at the center of the triangular configuration? The equilateral triangle has a side length of 25.0 cm . https://seo-videos.collegephysicsanswers.com/ch18/pe50/ed1ch18pe23.mp4 822 214 3.8 2018-06-07 yes 2018-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-can-be-explained-basis-conservation-charge-closed-circuit Which of the following can be explained on the basis of conservation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap01/thumbs-ed1ch20ap01-00002.png Which of the following can be explained on the basis of conservation of charge in a closed circuit consisting of a battery, resistor, and metal wires? (a) The number of electrons leaving the battery will be equal to the number of electrons entering the battery.(b) The number of electrons leaving the battery will be less than the number of electrons entering the battery.(c) The number of protons leaving the battery will be equal to the number of protons entering the battery.(d) The number of protons leaving the battery will be less than the number of protons entering the battery. https://seo-videos.collegephysicsanswers.com/ch20/ap01/ed1ch20ap01.mp4 51 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-five-cent-coin-contains-500-g-nickel-what-fraction-nickel-atoms A certain five cent coin contains 5.00 g of nickel. What fraction of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe23/thumbs-ed1ch18pe37-00002.png A certain five cent coin contains 5.00 g of nickel. What fraction of the nickel atoms' electrons, removed and placed 1.00 m above it, would support the weight of this coin? The atomic mass of nickel is 58.7, and each nickel atom contains 28 electrons and 28 protons. https://seo-videos.collegephysicsanswers.com/ch18/pe23/ed1ch18pe37.mp4 224 148 3.4 2018-06-08 yes 2018-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-magnitude-electric-field-200-m-point-charge-500-mc-such-found-terminal Calculate the magnitude of the electric field 2.00 m from a point… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe29/thumbs-ed1ch18pe43-00002.png Calculate the magnitude of the electric field 2.00 m from a point charge of 5.00 mC (such as found on the terminal of a Van de Graaff). https://seo-videos.collegephysicsanswers.com/ch18/pe29/ed1ch18pe43.mp4 30 190 5 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-battery-connected-bulb-there-25-current-circuit-what-amount-charge-will When a battery is connected to a bulb, there is 2.5 A of current in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap02/thumbs-ed1ch20ap02-00002.png When a battery is connected to a bulb, there is 2.5 A of current in the circuit. What amount of charge will flow though the circuit in a time of 0.5 s? (a) 0.5 C (b) 1 C (c) 1.25 C (d) 1.5 C https://seo-videos.collegephysicsanswers.com/ch20/ap02/ed1ch20ap02.mp4 34 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnitude-and-direction-electric-field-exerts-200-times-10-5-n-upward-force What is the magnitude and direction of an electric field that exerts… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe27/thumbs-ed1ch18pe41-00002.png What is the magnitude and direction of an electric field that exerts a 2.00 x 10^{-5} N upward force on a -1.75 \mu C charge? https://seo-videos.collegephysicsanswers.com/ch18/pe27/ed1ch18pe41.mp4 51 502 3.9 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resistance-bulb-if-current-it-125-when-4-v-voltage-supply-connected-it-if What is the resistance of a bulb if the current in it is 1.25 A when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap07/thumbs-ed1ch20ap07-00002.png What is the resistance of a bulb if the current in it is 1.25 A when a 4 V voltage supply is connected to it? If the voltage supply is increased to 7 V, what will be the current in the bulb? https://seo-videos.collegephysicsanswers.com/ch20/ap07/ed1ch20ap07.mp4 48 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-affect-resistivity-wire-length-area-cross-section-material-all Which of the following affect the resistivity of a wire? (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap08/thumbs-ed1ch20ap08-00002.png Which of the following affect the resistivity of a wire? (a) length(b) area of cross section(c) material(d) all of the above https://seo-videos.collegephysicsanswers.com/ch20/ap08/ed1ch20ap08.mp4 59 2 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2049-circuit-shown-contains-resistor-r-connected-voltage-supply-graph **Figure 20.49** The circuit shown contains a resistor R connected to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap14/thumbs-ed1ch20ap14-00002.png **Figure 20.49** The circuit shown contains a resistor R connected to a voltage supply. The graph shows the total energy E dissipated by the resistance as a function of time. Which of the following shows the corresponding graph for double resistance, i.e., if R is replaced by 2R? https://seo-videos.collegephysicsanswers.com/ch20/ap14/ed1ch20ap14.mp4 90 2021-03-30 yes 2021-03-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-times-105textrm-kg-subway-train-brought-stop-speed-0500-ms-0400-m-large A 5.00 x 10^{5} kg subway train is brought to a stop from a speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe22/thumbs-ed1ch07pe22-00002.png A 5.00 x 10^{5} kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large spring bumper at the end of its track. What is the force constant k of the spring? https://seo-videos.collegephysicsanswers.com/ch07/pe22/ed1ch07pe22.mp4 212 1568 4.5 2020-01-08 yes 2020-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-initial-rest-acceleration-proton-500-times-106-nc-electric-field-such Calculate the initial (from rest) acceleration of a proton in a 5.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe31/thumbs-ed1ch18pe45-00002.png Calculate the initial (from rest) acceleration of a proton in a 5.00 x 10^6 N/C electric field (such as created by a research Van de Graaff). Explicitly show how you follow the steps in the Problem-Solving Strategy for electrostatics. https://seo-videos.collegephysicsanswers.com/ch18/pe31/ed1ch18pe45.mp4 46 413 5 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/100-g-toy-car-propelled-compressed-spring-starts-it-moving-car-follows-curved A 100-g toy car is propelled by a compressed spring that starts it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe20/thumbs-ed1ch07pe20-00002.png A 100-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in Figure 7.38. Show that the final speed of the toy car is 0.687 m/s if its initial speed is 2.00 m/s and it coasts up the frictionless slope, gaining 0.180 m in altitude. https://seo-videos.collegephysicsanswers.com/ch07/pe20/ed1ch07pe20.mp4 244 891 3.8 2020-01-08 yes 2020-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-near-point-charge-q-b-do-same-point-charge-300q (a) Sketch the electric field lines near a point charge +q. (b) Do… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe33/thumbs-ed1ch18pe47-00002.png (a) Sketch the electric field lines near a point charge +q. (b) Do the same for a point charge -3.00q. https://seo-videos.collegephysicsanswers.com/ch18/pe33/ed1ch18pe47.mp4 66 450 5 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/600-kg-skier-initial-speed-120-ms-coasts-250-m-high-rise-shown-figure-739-find A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe24/thumbs-ed1ch07pe24-00002.png A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown in Figure 7.39. Find her final speed at the top, given that the coefficient of friction between her skis and the snow is 0.0800. (Hint: Find the distance traveled up the incline assuming a straight-line path as shown in the figure.) https://seo-videos.collegephysicsanswers.com/ch07/pe24/ed1ch07pe24.mp4 410 1467 4.1 2020-01-08 yes 2020-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/crab-nebula-see-figure-740-pulsar-remnant-supernova-occurred-ad-1054-using-data The Crab Nebula (see Figure 7.40) pulsar is the remnant of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe30/thumbs-ed1ch07pe30-00002.png The Crab Nebula (see Figure 7.40) pulsar is the remnant of a supernova that occurred in A.D. 1054. Using data from Table 7.3, calculate the approximate factor by which the power output of this astronomical object has declined since its explosion. https://seo-videos.collegephysicsanswers.com/ch07/pe30/ed1ch07pe30.mp4 47 238 3.5 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-beta-decay-52textrmfe-complete Write the complete decay equation for \beta^+ decay of ^{52} Fe in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe20/thumbs-ed1ch31pe20-00002.png Write the complete decay equation for \beta^+ decay of ^{52} Fe in the complete ^ A _ Z X _ N notation: https://seo-videos.collegephysicsanswers.com/ch31/pe20/ed1ch31pe20.mp4 60 81 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-beta-equation-11textrmc-b-calculate-energy-released-decay-masses (a) Write the complete \beta^+ equation for {}^{11} C . (b) Calculate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe40/thumbs-ed1ch31pe40-00002.png (a) Write the complete \beta^+ equation for {}^{11} C . (b) Calculate the energy released in the decay. The masses of {}^{11} C and {}^{11} B are 11.011433 u and 11.009305 u , respectively. https://seo-videos.collegephysicsanswers.com/ch31/pe40/ed1ch31pe40.mp4 299 83 5 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1847-shows-electric-field-lines-near-two-charges-q1-and-q2-what-ratio Figure 18.47 shows the electric field lines near two charges q_1 and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe35/thumbs-ed1ch18pe49-00002.png Figure 18.47 shows the electric field lines near two charges q_1 and q_2. What is the ratio of their magnitudes? (b) Sketch the electric field lines a long distance from the charges shown in the figure. https://seo-videos.collegephysicsanswers.com/ch18/pe35/ed1ch18pe49.mp4 99 252 4 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-electric-field-500-m-center-terminal-van-de-graaff-300-mc-charge-noting (a) What is the electric field 5.00 m from the center of the terminal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe51/thumbs-ed1ch18pe51-00002.png (a) What is the electric field 5.00 m from the center of the terminal of a Van de Graaff with a 3.00 mC charge, noting that the field is equivalent to that of a point charge at the center of the terminal? (b) At this distance, what force does the field exert on a 2.00 \mu C charge on the Van de Graaff's belt? https://seo-videos.collegephysicsanswers.com/ch18/pe51/ed1ch18pe51.mp4 67 118 3.5 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/point-charges-500-mutextrmc-and-300-mutextrmc-are-placed-0250-m-apart-where-can Point charges of 5.00 \mu C and -3.00 \mu C are placed 0.250 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe25/thumbs-ed1ch18pe39-00002.png Point charges of 5.00 \mu C and -3.00 \mu C are placed 0.250 m apart. (a) Where can a third charge be placed so that the net force on it is zero? (b) What if both charges are positive? https://seo-videos.collegephysicsanswers.com/ch18/pe25/ed1ch18pe39.mp4 592 494 4.4 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1857-shows-electron-passing-between-two-charged-metal-plates-create-100 Figure 18.57 shows an electron passing between two charged metal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe61/thumbs-ed1ch18pe61-00002.png Figure 18.57 shows an electron passing between two charged metal plates that create an 100 N/C vertical electric field perpendicular to the electron's original horizontal velocity. (These can be used to change the electron's direction, such as in an oscilloscope.) The initial speed of the electron is 3.00 x 10^6 m/s , and the horizontal distance it travels in the uniform field is 4.00 cm. (a) What is its vertical deflection? (b) What is the vertical component of its final velocity? (c) At what angle does it exit? Neglect any edge effects. https://seo-videos.collegephysicsanswers.com/ch18/pe61/ed1ch18pe61.mp4 248 255 4.5 2018-06-13 yes 2018-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-energy-fusion-bombs-were-used-supply-energy-needs-world-how-many-9-megaton If the energy in fusion bombs were used to supply the energy needs of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe28/thumbs-ed1ch07pe28-00002.png If the energy in fusion bombs were used to supply the energy needs of the world, how many of the 9-megaton variety would be needed for a year’s supply of energy (using data from Table 7.1)? This is not as far-fetched as it may sound—there are thousands of nuclear bombs, and their energy can be trapped in underground explosions and converted to electricity, as natural geothermal energy is. https://seo-videos.collegephysicsanswers.com/ch07/pe28/ed1ch07pe28.mp4 73 284 4.5 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-good-physical-condition-can-put-out-100-w-useful-power-several-hours A person in good physical condition can put out 100 W of useful power… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe32/thumbs-ed1ch07pe32-00002.png A person in good physical condition can put out 100 W of useful power for several hours at a stretch, perhaps by pedaling a mechanism that drives an electric generator. Neglecting any problems of generator efficiency and practical considerations such as resting time: (a) How many people would it take to run a 4.00-kW electric clothes dryer? (b) How many people would it take to replace a large electric power plant that generates 800 MW? https://seo-videos.collegephysicsanswers.com/ch07/pe32/ed1ch07pe32.mp4 63 611 4.3 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fish-are-hung-spring-scale-determine-their-mass-what-force-constant-spring-such Fish are hung on a spring scale to determine their mass. (a) What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe01/thumbs-ed1ch16pe01-00002.png Fish are hung on a spring scale to determine their mass. (a) What is the force constant of the spring in such a scale if it the spring stretches 8.00 cm for a 10.0 kg load? (b) What is the mass of a fish that stretches the spring 5.50 cm? (c) How far apart are the half-kilogram marks on the scale? https://d1igkeoc1zsqhw.cloudfront.net/ch16/pe01/ed1ch16pe01.mp4 177 750 4.6 2018-06-19 no 2018-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-useful-power-output-person-who-does-600times-106textrm-j-useful (a) What is the average useful power output of a person who does 6.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe36/thumbs-ed1ch07pe36-00002.png (a) What is the average useful power output of a person who does 6.00 x 10^{6} J of useful work in 8.00 h? (b) Working at this rate, how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.) https://seo-videos.collegephysicsanswers.com/ch07/pe36/ed1ch07pe36.mp4 108 722 3.4 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-power-output-watts-and-horsepower-shot-putter-who-takes-120-s Calculate the power output in watts and horsepower of a shot-putter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe46/thumbs-ed1ch07pe46-00002.png Calculate the power output in watts and horsepower of a shot-putter who takes 1.20 s to accelerate the 7.27-kg shot from rest to 14.0 m/s, while raising it 0.800 m. (Do not include the power produced to accelerate his body.) https://seo-videos.collegephysicsanswers.com/ch07/pe46/ed1ch07pe46.mp4 107 274 5 2020-01-15 yes 2020-01-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-beta-decay-equation-90textrmsr-major-waste-product-nuclear (a) Write the complete \beta^- decay equation for {}^{90} Sr , a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe38/thumbs-ed1ch31pe38-00002.png (a) Write the complete \beta^- decay equation for {}^{90} Sr , a major waste product of nuclear reactors. (b) Find the energy released in the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe38/ed1ch31pe38.mp4 213 61 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-can-you-rapidly-climb-stairs-116min-930-kcal-energy-100-g-pat-butter-b (a) How long can you rapidly climb stairs (116/min) on the 93.0 kcal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe44/ed1ch07pe44b-thumbnail.jpg (a) How long can you rapidly climb stairs (116/min) on the 93.0 kcal of energy in a 10.0-g pat of butter? (b) How many flights is this if each flight has 16 stairs? https://seo-videos.collegephysicsanswers.com/ch07/pe44/ed1ch07pe44b.mp4 164 413 4 2023-12-21 yes 2023-12-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-1 Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe24/thumbs-ed1ch31pe24-00002.png Write the complete decay equation for the given nuclide in the complete ^ A _ Z X _ N notation: alpha decay of ^{226} Ra , another isotope in the decay series of ^{238} U , first recognized as a new element by the Curies, poses special problems because its daughter is a radioactive noble gas. https://seo-videos.collegephysicsanswers.com/ch31/pe24/ed1ch31pe24.mp4 88 59 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-type-bb-gun-uses-spring-driven-plunger-blow-bb-its-barrel-calculate-force One type of BB gun uses a spring-driven plunger to blow the BB from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe03/thumbs-ed1ch16pe03-00002.png One type of BB gun uses a spring-driven plunger to blow the BB from its barrel. (a) Calculate the force constant of its plunger’s spring if you must compress it 0.150 m to drive the 0.0500-kg plunger to a top speed of 20.0 m/s. (b) What force must be exerted to compress the spring? https://seo-videos.collegephysicsanswers.com/ch16/pe03/ed1ch16pe03.mp4 113 953 4.3 2018-06-19 yes 2018-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-charge-electron-family-number-and-total-number-nucleons-are-all-3 Confirm that charge, electron family number, and the total number of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe30/thumbs-ed1ch31pe30-00002.png Confirm that charge, electron family number, and the total number of nucleons are all conserved by the rule for α decay given in the equation ^ A _ Z X _ N \to {}^{ A -4}_{ Z -2} Y _{ N -2} + {}^4_2 He _2. To do this, identify the values of each before and after the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe30/ed1ch31pe30.mp4 93 27 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-800-kg-man-stands-pogo-stick-spring-compressed-0120-m-what-force-constant When an 80.0-kg man stands on a pogo stick, the spring is compressed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe05/thumbs-ed1ch16pe05-00002.png When an 80.0-kg man stands on a pogo stick, the spring is compressed 0.120 m. (a) What is the force constant of the spring? (b) Will the spring be compressed more when he hops down the road? https://seo-videos.collegephysicsanswers.com/ch16/pe05/ed1ch16pe05.mp4 112 453 4.3 2018-06-19 yes 2018-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rare-decay-mode-has-been-observed-which-222textrmra-emits-14textrmc-nucleus A rare decay mode has been observed in which ^{222} Ra emits a ^{14}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe34/thumbs-ed1ch31pe34-00002.png A rare decay mode has been observed in which ^{222} Ra emits a ^{14} C nucleus. (a) The decay equation is {}^{222} Ra \to {}^{ A } X + {}^{14} C . Identify the nuclide {}^ A X . (b) Find the energy emitted in the decay. The mass of {}^{222} Ra is 222.015353 u . https://seo-videos.collegephysicsanswers.com/ch31/pe34/ed1ch31pe34.mp4 162 117 2021-05-13 yes 2021-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-momentum-garbage-truck-120times-104textrm-kg-and-moving-100-ms-b-what-speed (a) What is the momentum of a garbage truck that is 1.20 x 10^{4} kg … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe04/thumbs-ed1ch08pe04-00002.png (a) What is the momentum of a garbage truck that is 1.20 x 10^{4} kg and is moving at 10.0 m/s ? (b) At what speed would an 8.00-kg trash can have the same momentum as the truck? https://seo-videos.collegephysicsanswers.com/ch08/pe04/ed1ch08pe04.mp4 63 406 3.6 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-frequency-tuning-fork-takes-250-times-10-3-s-complete-one-oscillation Find the frequency of a tuning fork that takes 2.50 x 10^{-3} s to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe09/thumbs-ed1ch16pe09-00002.png Find the frequency of a tuning fork that takes 2.50 x 10^{-3} s to complete one oscillation. https://seo-videos.collegephysicsanswers.com/ch16/pe09/ed1ch16pe09.mp4 20 370 5 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-period-600-hz-electrical-power What is the period of 60.0 Hz electrical power? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe07/thumbs-ed1ch16pe07-00002.png What is the period of 60.0 Hz electrical power? https://seo-videos.collegephysicsanswers.com/ch16/pe07/ed1ch16pe07.mp4 18 386 3.7 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-diving-board-no-one-it-bounces-and-down-simple-harmonic-motion-frequency Suppose a diving board with no one on it bounces up and down in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe19/thumbs-ed1ch16pe19-00002.png Suppose a diving board with no one on it bounces up and down in a simple harmonic motion with a frequency of 4.00 Hz. The board has an effective mass of 10.0 kg. What is the frequency of the simple harmonic motion of a 75.0-kg diver on the board? https://seo-videos.collegephysicsanswers.com/ch16/pe19/ed1ch16pe19.mp4 87 193 4 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pendulum-period-200000-s-one-location-g-980-ms2-moved-new-locatio-where-period A pendulum with a period of 2.00000 s in one location (g = 9.80 m/s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe29/thumbs-ed1ch16pe29-00002.png A pendulum with a period of 2.00000 s in one location (g = 9.80 m/s ^2) is moved to a new locatio where the period is now 1.99796 s. What is the acceleration due to gravity at its new location? https://seo-videos.collegephysicsanswers.com/ch16/pe29/ed1ch16pe29.mp4 103 195 3.3 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/storms-south-pacific-can-create-waves-travel-all-way-california-coast-which-are Storms in the South Pacific can create waves that travel all the way… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe47/thumbs-ed1ch16pe47-00002.png Storms in the South Pacific can create waves that travel all the way to the California coast, which are 12,000 km away. How long does it take them if they travel at 15.0 m/s? https://seo-videos.collegephysicsanswers.com/ch16/pe47/ed1ch16pe47.mp4 42 205 5 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-0750-kg-object-horizontal-surface-connected-spring-has-force Suppose you have a 0.750-kg object on a horizontal surface connected… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe45/thumbs-ed1ch16pe45-00002.png Suppose you have a 0.750-kg object on a horizontal surface connected to a spring that has a force constant of 150 N/m. There is simple friction between the object and surface with a static coefficient of friction \mu_s = 0.100. (a) How far can the spring be stretched without moving the mass? (b) If the object is set into oscillation with an amplitude twice the distance found in part (a), and the kinetic coefficient of friction is \mu_k = 0.0850, what total distance does it travel before stopping? Assume it starts at the maximum amplitude. https://seo-videos.collegephysicsanswers.com/ch16/pe45/ed1ch16pe45.mp4 487 146 2.6 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-moving-10-ms-crashes-tree-and-stops-026-s-calculate-force-seat-belt-exerts A car moving at 10 m/s crashes into a tree and stops in 0.26 s.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe08/thumbs-ed1ch08pe08-00002.png A car moving at 10 m/s crashes into a tree and stops in 0.26 s. Calculate the force the seat belt exerts on a passenger in the car to bring him to a halt. The mass of the passenger is 70 kg. https://seo-videos.collegephysicsanswers.com/ch08/pe08/ed1ch08pe08.mp4 119 878 4 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-intensity-wm2-laser-beam-used-burn-away-cancerous-tissue-when-900-absorbed (a) What is the intensity in W/m ^2 of a laser beam used to burn… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe71/thumbs-ed1ch16pe71-00002.png (a) What is the intensity in W/m ^2 of a laser beam used to burn away cancerous tissue that, when 90.0% absorbed, puts 500 J of energy into a circular spot 2.00 mm in diameter in 4.00 s? (b) Discuss how this intensity compares to the average intensity of sunlight (about 700 W/m ^2) and the implications that would have if the laser beam entered your eye. Note how your answer depends on the time duration of the exposure. https://seo-videos.collegephysicsanswers.com/ch16/pe71/ed1ch16pe71.mp4 149 316 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/photovoltaic-array-solar-cells-100-efficient-gathering-solar-energy-and (a) A photovoltaic array of (solar cells) is 10.0% efficient in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe69/thumbs-ed1ch16pe69-00002.png (a) A photovoltaic array of (solar cells) is 10.0% efficient in gathering solar energy and converting it to electricity. If the average intensity of sunlight on one day is700 W/m ^2 what area should your array have to gather energy at the rate of 100 W? (b) What is the maximum cost of the array if it must pay for itself in two years of operation averaging 10.0 hours per day? Assume that it earns money at the rate of 9.00 ¢ per kilowatt-hour. https://seo-videos.collegephysicsanswers.com/ch16/pe69/ed1ch16pe69.mp4 187 267 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/height-washington-monument-measured-be-170-m-day-when-temperature-350circtextrmc The height of the Washington Monument is measured to be 170 m on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe09/thumbs-ed1ch13pe09-00002.png The height of the Washington Monument is measured to be 170 m on a day when the temperature is 35.0° C . What will its height be on a day when the temperature falls to -10.0° C ? Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble’s. https://seo-videos.collegephysicsanswers.com/ch13/pe09/ed1ch13pe09.mp4 64 250 3.5 2018-06-27 yes 2018-06-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-500-ml-glass-beaker-filled-brim-ethyl-alcohol-temperature-500circtextrmc-how (a) If a 500-mL glass beaker is filled to the brim with ethyl alcohol… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe17/thumbs-ed1ch13pe17-00002.png (a) If a 500-mL glass beaker is filled to the brim with ethyl alcohol at a temperature of 5.00° C how much will overflow when its temperature reaches 22.0° C ? (b) How much less water would overflow under the same conditions? https://seo-videos.collegephysicsanswers.com/ch13/pe17/ed1ch13pe17.mp4 81 156 4.5 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/airplane-passenger-has-100-cm3-air-his-stomach-just-plane-takes-sea-level An airplane passenger has 100 cm ^3 of air in his stomach just before… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe29/thumbs-ed1ch13pe29-00002.png An airplane passenger has 100 cm ^3 of air in his stomach just before the plane takes off from a sea-level airport. What volume will the air have at cruising altitude if cabin pressure drops to 7.50 x 10^4 N/m ^2? https://seo-videos.collegephysicsanswers.com/ch13/pe29/ed1ch13pe29.mp4 103 388 4 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-mass-large-ship-has-momentum-160times-109-kgcdottextrmms-when-ship-moving (a) What is the mass of a large ship that has a momentum of 1.60 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe02/thumbs-ed1ch08pe02-00002.png (a) What is the mass of a large ship that has a momentum of 1.60 x 10^{9} kg \cdot m/s , when the ship is moving at a speed of 48.0 km/h? (b) Compare the ship’s momentum to the momentum of a 1100-kg artillery shell fired at a speed of 1200 m/s . https://seo-videos.collegephysicsanswers.com/ch08/pe02/ed1ch08pe02.mp4 119 690 3.7 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/expensive-vacuum-system-can-achieve-pressure-low-100-times-10-7-nm2 An expensive vacuum system can achieve a pressure as low as 1.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe31/thumbs-ed1ch13pe31-00002.png An expensive vacuum system can achieve a pressure as low as 1.00 x 10^{-7} N/m ^2 at 20° C . How many atoms are there in a cubic centimeter at this pressure and temperature? https://seo-videos.collegephysicsanswers.com/ch13/pe31/ed1ch13pe31.mp4 64 382 4.3 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2159-figure-above-shows-circuit-containing-two-batteries-and-three Figure 21.59 The figure above shows a circuit containing two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap01/thumbs-ed1ch21ap01-00002.png Figure 21.59 The figure above shows a circuit containing two batteries and three identical resistors with resistance R. Which of the following changes to the circuit will result in an increase in the current at point P? Select two answers. a. Reversing the connections to the 14 V battery. b. Removing the 2 V battery and connecting the wires to close the left loop. c. Rearranging the resistors so all three are in series. d. Removing the branch containing resistor Z. https://seo-videos.collegephysicsanswers.com/ch21/ap01/ed1ch21ap01.mp4 256 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bare-helium-nucleus-has-two-positive-charges-and-mass-664-times-10-27-kg A bare helium nucleus has two positive charges and a mass of 6.64 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe03/thumbs-ed1ch19pe03-00002.png A bare helium nucleus has two positive charges and a mass of 6.64 x 10^{-27} kg (a) Calculate its kinetic energy in joules at 2.00% of the speed of light. (b) What is this in electron volts? (c) What voltage would be needed to obtain this energy? https://seo-videos.collegephysicsanswers.com/ch19/pe03/ed1ch19pe03.mp4 196 435 4 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-final-speed-110-kg-rugby-player-who-initially-running-800-ms-collides Calculate the final speed of a 110-kg rugby player who is initially… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe16/thumbs-ed1ch08pe16-00002.png Calculate the final speed of a 110-kg rugby player who is initially running at 8.00 m/s but collides head-on with a padded goalpost and experiences a backward force of 1.76 x 10^{4} N for 5.50 x 10^{-2} s . https://seo-videos.collegephysicsanswers.com/ch08/pe16/ed1ch08pe16.mp4 135 551 4.7 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-there-are-two-voltage-sources-sources-and-b-same-emfs-different-internal Suppose there are two voltage sources – Sources A and B – with the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap06/thumbs-ed1ch21ap06-00002.png Suppose there are two voltage sources – Sources A and B – with the same emfs but different internal resistances, i.e., the internal resistance of Source A is lower than Source B. If they both supply the same current in their circuits, which of the following statements is true? (a) External resistance in Source A’s circuit is more than Source B’s circuit.(b) External resistance in Source A’s circuit is less than Source B’s circuit.(c) External resistance in Source A’s circuit is the same as Source B’s circuit.(d) The relationship between external resistances in the two circuits can’t be determined. https://seo-videos.collegephysicsanswers.com/ch21/ap06/ed1ch21ap06.mp4 210 2 2021-04-01 yes 2021-04-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-initial-velocity-10-ms-moves-angle-60circ-above-x-direction-ball-hits A ball with an initial velocity of 10 m/s moves at an angle 60° above… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe20/thumbs-ed1ch08pe20-00002.png A ball with an initial velocity of 10 m/s moves at an angle 60° above the +x direction. The ball hits a vertical wall and bounces off so that it is moving 60° above the -x direction with the same speed. What is the impulse delivered by the wall? https://seo-videos.collegephysicsanswers.com/ch08/pe20/ed1ch08pe20.mp4 353 305 5 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/battery-operated-car-utilizes-120-v-system-find-charge-batteries-must-be-able A battery-operated car utilizes a 12.0 V system. Find the charge the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe09/thumbs-ed1ch19pe09-00002.png A battery-operated car utilizes a 12.0 V system. Find the charge the batteries must be able to move in order to accelerate the 750 kg car from rest to 25.0 m/s, make it climb a 2.00 x 10^2 m high hill, and then cause it to travel at a constant 25.0 m/s by exerting a 5.00 x 10^2 N force for an hour. https://seo-videos.collegephysicsanswers.com/ch19/pe09/ed1ch19pe09.mp4 137 190 4.8 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-field-strength-between-two-parallel-conducting-plates-separated-400-cm The electric field strength between two parallel conducting plates… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe15/thumbs-ed1ch19pe15-00002.png The electric field strength between two parallel conducting plates separated by 4.00 cm is 7.50 x 10^4 V/m . (a) What is the potential difference between the plates? (b) The plate with the lowest potential is taken to be at zero volts. What is the potential 1.00 cm from that plate (and 3.00 cm from the other)? https://seo-videos.collegephysicsanswers.com/ch19/pe15/ed1ch19pe15.mp4 65 447 4.4 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-100-mutextrmc-point-charge-will-potential-be-100-v-what-distance-will-it How far from a 1.00 \mu C point charge will the potential be 100 V?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe27/thumbs-ed1ch19pe27-00002.png How far from a 1.00 \mu C point charge will the potential be 100 V? At what distance will it be 2.00 x 10^2 V ? https://seo-videos.collegephysicsanswers.com/ch19/pe27/ed1ch19pe27.mp4 40 361 4.8 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-velocity-900-kg-car-initially-moving-300-ms-just-after-it-hits-150-kg-deer What is the velocity of a 900-kg car initially moving at 30.0 m/s,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe26/thumbs-ed1ch08pe26-00002.png What is the velocity of a 900-kg car initially moving at 30.0 m/s, just after it hits a 150-kg deer initially running at 12.0 m/s in the same direction? Assume the deer remains on the car. https://seo-videos.collegephysicsanswers.com/ch08/pe26/ed1ch08pe26.mp4 103 462 4.3 2020-02-04 yes 2020-02-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/punter-drops-ball-rest-vertically-1-meter-down-his-foot-ball-leaves-foot-speed A punter drops a ball from rest vertically 1 meter down onto his… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe22/thumbs-ed1ch08pe22-00002.png A punter drops a ball from rest vertically 1 meter down onto his foot. The ball leaves the foot with a speed of 18 m/s at an angle 55° above the horizontal. What is the impulse delivered by the foot (magnitude and direction)? https://seo-videos.collegephysicsanswers.com/ch08/pe22/ed1ch08pe22.mp4 436 246 2.3 2020-02-04 yes 2020-02-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/uncharged-capacitor-c-connected-series-switch-resistor-r1-and-voltage-source An uncharged capacitor C is connected in series (with a switch) to a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/ap13/thumbs-ed1ch21ap13-00002.png An uncharged capacitor C is connected in series (with a switch) to a resistor R\_1 and a voltage source \Epsilon. Assume \Epsilon = 24 V , R\_1 = 1.2 k \Omega and C = 1 mF . (a) What will be the current through the circuit as the switch is closed? Draw a circuit diagram and show the direction of current after the switch is closed. How long will it take for the capacitor to be 99% charged?(b) After full charging, this capacitor is connected in series to another resistor, R\_2 = 1 k \Omega. What will be the current in the circuit as soon as it’s connected? Draw a circuit diagram and show the direction of current. How long will it take for the capacitor voltage to reach 3.24 V? https://seo-videos.collegephysicsanswers.com/ch21/ap13/ed1ch21ap13.mp4 237 4 2018-05-09 yes 2018-05-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-north-and-east-components-displacement-hikers-shown-figure-350 Find the north and east components of the displacement for the hikers… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe03/thumbs-ed1ch03pe03-00002.png Find the north and east components of the displacement for the hikers shown in Figure 3.50. https://seo-videos.collegephysicsanswers.com/ch03/pe03/ed1ch03pe03.mp4 58 501 5 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-first-walk-120-m-direction-west-north-and-then-200-m-direction Suppose you first walk 12.0 m in a direction west of north and then… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe05/thumbs-ed1ch03pe05-00002.png Suppose you first walk 12.0 m in a direction west of north and then 20.0 m in a direction 40.0° south of west. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements A and B , as in Figure 3.54, then this problem finds their sum R = A + B.) https://seo-videos.collegephysicsanswers.com/ch03/pe05/ed1ch03pe05.mp4 301 1337 3.7 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/archer-shoots-arrow-750-m-distant-target-bulls-eye-target-same-height-release An archer shoots an arrow at a 75.0 m distant target; the bull's-eye… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe29/thumbs-ed1ch03pe29-00002.png An archer shoots an arrow at a 75.0 m distant target; the bull's-eye of the target is at same height as the release height of the arrow. (a) At what angle must the arrow be released to hit the bull's-eye if its initial speed is 35.0 m/s? In this part of the problem, explicitly show how you follow the steps involved in solving projectile motion problems. (b) There is a large tree halfway between the archer and the target with an overhanging horizontal branch 3.50 m above the release height of the arrow. Will the arrow go over or under the branch? https://seo-videos.collegephysicsanswers.com/ch03/pe29/ed1ch03pe29.mp4 350 954 4.7 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-hall-voltage-produced-0200-t-field-applied-across-260-cm-diameter-aorta What Hall voltage is produced by a 0.200-T field applied across a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe23/thumbs-ed1ch22pe23-00002.png What Hall voltage is produced by a 0.200-T field applied across a 2.60-cm-diameter aorta when blood velocity is 60.0 cm/s? https://seo-videos.collegephysicsanswers.com/ch22/pe23/ed1ch22pe23.mp4 59 117 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-potential-due-point-charge-500-times-102-v-distance-150-m-what-are-sign-and If the potential due to a point charge is 5.00 x 10^2 V at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe29/ed1ch19pe29b-thumbnail.jpg If the potential due to a point charge is 5.00 x 10^2 V at a distance of 15.0 m, what are the sign and magnitude of the charge? https://seo-videos.collegephysicsanswers.com/ch19/pe29/ed1ch19pe29b.mp4 46 139 4.8 2024-01-12 yes 2024-01-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/250-m-diameter-university-communications-satellite-dish-receives-tv-signals-have A 2.50-m-diameter university communications satellite dish receives… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe35/thumbs-ed1ch24pe35-00002.png A 2.50-m-diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.50 \mu V/m . (See Figure 24.28.) (a) What is the intensity of this wave? (b) What is the power received by the antenna? (c) If the orbiting satellite broadcasts uniformly over an area of 1.50 x 10^{13} m ^2 (a large fraction of North America), how much power does it radiate? https://seo-videos.collegephysicsanswers.com/ch24/pe35/ed1ch24pe35.mp4 107 103 4 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/research-van-de-graaff-generator-has-200-m-diameter-metal-sphere-charge-500-mc A research Van de Graaff generator has a 2.00-m- diameter metal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe31/thumbs-ed1ch19pe31-00002.png A research Van de Graaff generator has a 2.00-m- diameter metal sphere with a charge of 5.00 mC on it. (a) What is the potential near its surface? (b) At what distance from its center is the potential 1.00 MV? (c) An oxygen atom with three missing electrons is released near the Van de Graaff generator. What is its energy in MeV at this distance? https://seo-videos.collegephysicsanswers.com/ch19/pe31/ed1ch19pe31.mp4 158 431 4 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/world-war-ii-there-were-several-reported-cases-airmen-who-jumped-their-flaming In World War II, there were several reported cases of airmen who… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe34/thumbs-ed1ch02pe34-00002.png In World War II, there were several reported cases of airmen who jumped from their flaming airplanes with no parachute to escape certain death. Some fell about 20,000 feet (6000 m), and some of them survived, with few life- threatening injuries. For these lucky pilots, the tree branches and snow drifts on the ground allowed their deceleration to be relatively small. If we assume that a pilot's speed upon impact was 123 mph (54 m/s), then what was his deceleration? Assume that the trees and snow stopped him over a distance of 3.0 m. https://seo-videos.collegephysicsanswers.com/ch02/pe34/ed1ch02pe34.mp4 154 272 3.6 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/900-kg-ice-hockey-player-hits-0150-kg-puck-giving-puck-velocity-450-ms-if-both A 90.0-kg ice hockey player hits a 0.150-kg puck, giving the puck a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe52/thumbs-ed1ch08pe52-00002.png A 90.0-kg ice hockey player hits a 0.150-kg puck, giving the puck a velocity of 45.0 m/s. If both are initially at rest and if the ice is frictionless, how far does the player recoil in the time it takes the puck to reach the goal 15.0 m away? https://seo-videos.collegephysicsanswers.com/ch08/pe52/ed1ch08pe52.mp4 147 183 3.3 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-equipotential-lines-vicinity-negatively-charged-conductor-figure-1928-how Sketch the equipotential lines in the vicinity of the negatively… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe41/thumbs-ed1ch19pe41-00002.png Sketch the equipotential lines in the vicinity of the negatively charged conductor in Figure 19.28. How will these equipotentials look a long distance from the object? https://seo-videos.collegephysicsanswers.com/ch19/pe41/ed1ch19pe41.mp4 85 159 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-ice-skating-performance-initially-motionless-800-kg-clown-throws-fake (a) During an ice skating performance, an initially motionless… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe44/thumbs-ed1ch08pe44-00002.png (a) During an ice skating performance, an initially motionless 80.0-kg clown throws a fake barbell away. The clown’s ice skates allow her to recoil frictionlessly. If the clown recoils with a velocity of 0.500 m/s and the barbell is thrown with a velocity of 10.0 m/s, what is the mass of the barbell? (b) How much kinetic energy is gained by this maneuver? (c) Where does the kinetic energy come from? https://seo-videos.collegephysicsanswers.com/ch08/pe44/ed1ch08pe44.mp4 142 221 5 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-cars-collide-icy-intersection-and-stick-together-afterward-first-car-has Two cars collide at an icy intersection and stick together afterward.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe50/thumbs-ed1ch08pe50-00002.png Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1200 kg and is approaching at 8.00 m/s due south. The second car has a mass of 850 kg and is approaching at 17.0 m/s due west. (a) Calculate the final velocity (magnitude and direction) of the cars. (b) How much kinetic energy is lost in the collision? (This energy goes into deformation of the cars.) Note that because both cars have an initial velocity, you cannot use the equations for conservation of momentum along the x -axis and y -axis; instead, you must look for other simplifying aspects. https://seo-videos.collegephysicsanswers.com/ch08/pe50/ed1ch08pe50.mp4 308 610 4.2 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-voltage-applied-200-mutextrmf-capacitor-when-it-holds-310-mutextrmc Calculate the voltage applied to a 2.00 \mu F capacitor when it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe49/thumbs-ed1ch19pe49-00002.png Calculate the voltage applied to a 2.00 \mu F capacitor when it holds 3.10 \mu C of charge. https://seo-videos.collegephysicsanswers.com/ch19/pe49/ed1ch19pe49.mp4 43 130 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-capacitance-parallel-plate-capacitor-having-plates-area-500-m2-are Find the capacitance of a parallel plate capacitor having plates of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe53/thumbs-ed1ch19pe53-00002.png Find the capacitance of a parallel plate capacitor having plates of area 5.00 m ^2 that are separated by 0.100 mm of Teflon. https://seo-videos.collegephysicsanswers.com/ch19/pe53/ed1ch19pe53.mp4 50 355 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-ice-show-600-kg-skater-leaps-air-and-caught-initially-stationary-750-kg During an ice show, a 60.0-kg skater leaps into the air and is caught… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe32/thumbs-ed1ch08pe32-00002.png During an ice show, a 60.0-kg skater leaps into the air and is caught by an initially stationary 75.0-kg skater. (a) What is their final velocity assuming negligible friction and that the 60.0-kg skater’s original horizontal velocity is 4.00 m/s? (b) How much kinetic energy is lost? https://seo-videos.collegephysicsanswers.com/ch08/pe32/ed1ch08pe32.mp4 163 841 4.3 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/550-kg-bowling-ball-moving-900-ms-collides-0850-kg-bowling-pin-which-scattered A 5.50-kg bowling ball moving at 9.00 m/s collides with a 0.850-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe48/thumbs-ed1ch08pe48-00002.png A 5.50-kg bowling ball moving at 9.00 m/s collides with a 0.850-kg bowling pin, which is scattered at an angle of 85.0° to the initial direction of the bowling ball and with a speed of 15.0 m/s. (a) Calculate the final velocity (magnitude and direction) of the bowling ball. (b) Is the collision elastic? (c) Linear kinetic energy is greater after the collision. Discuss how spin on the ball might be converted to linear kinetic energy in the collision. https://seo-videos.collegephysicsanswers.com/ch08/pe48/ed1ch08pe48.mp4 609 345 3.2 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-capacitance-combination-capacitors-figure-1932 Find the total capacitance of the combination of capacitors in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe57/thumbs-ed1ch19pe57-00002.png Find the total capacitance of the combination of capacitors in Figure 19.32. https://seo-videos.collegephysicsanswers.com/ch19/pe57/ed1ch19pe57.mp4 72 602 4.8 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-total-capacitances-can-you-make-connecting-500-mutextrmf-and-800-mutextrmf What total capacitances can you make by connecting a 5.00 \mu F and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe59/thumbs-ed1ch19pe59-00002.png What total capacitances can you make by connecting a 5.00 \mu F and an 8.00 \mu F capacitor together? https://seo-videos.collegephysicsanswers.com/ch19/pe59/ed1ch19pe59.mp4 93 317 3.3 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-capacitance-combination-capacitors-shown-figure-1934 Find the total capacitance of the combination of capacitors shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe61/thumbs-ed1ch19pe61-00002.png Find the total capacitance of the combination of capacitors shown in Figure 19.34. https://seo-videos.collegephysicsanswers.com/ch19/pe61/ed1ch19pe61.mp4 148 536 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nervous-physicist-worries-two-metal-shelves-his-wood-frame-bookcase-might-obtain A nervous physicist worries that the two metal shelves of his wood… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe67/thumbs-ed1ch19pe67-00002.png A nervous physicist worries that the two metal shelves of his wood frame bookcase might obtain a high voltage if charged by static electricity, perhaps produced by friction. (a) What is the capacitance of the empty shelves if they have area 1.00 x 10^2 m ^2 and are 0.200 m apart? (b) What is the voltage between them if opposite charges of magnitude 2.00 nC are placed on them? (c) To show that this voltage poses a small hazard, calculate the energy stored. https://seo-videos.collegephysicsanswers.com/ch19/pe67/ed1ch19pe67.mp4 168 169 3.6 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-was-changing-one-dimensions-square-parallel-plate-capacitor-and A student was changing one of the dimensions of a square parallel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap35/thumbs-ed1ch19ap35-00002.png A student was changing one of the dimensions of a square parallel plate capacitor and measuring the resultant charge in a circuit with a battery. However, the student forgot which dimension was being varied, and didn’t write it or any units down. Given the table, which dimension was it? Table 19.2Dimension1.001.101.201.30Charge (\mu C )0.500.610.710.86 (a) The distance between the plates(b) The area(c) The length of a side(d) Both the area and the length of a side https://seo-videos.collegephysicsanswers.com/ch19/ap35/ed1ch19ap35.mp4 233 6 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dolphins-make-sounds-air-and-water-what-ratio-wavelength-sound-air-its Dolphins make sounds in air and water. What is the ratio of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe07/thumbs-ed1ch17pe07-00002.png Dolphins make sounds in air and water. What is the ratio of the wavelength of a sound in air to its wavelength in seawater? Assume air temperature is 20.0° C . https://seo-videos.collegephysicsanswers.com/ch17/pe07/ed1ch17pe07.mp4 100 284 4 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-intensity-level-does-sound-preceding-problem-correspond What intensity level does the sound in the preceding problem… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe15/thumbs-ed1ch17pe15-00002.png What intensity level does the sound in the preceding problem correspond to? https://seo-videos.collegephysicsanswers.com/ch17/pe15/ed1ch17pe15.mp4 83 196 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/people-good-hearing-can-perceive-sounds-low-level-800-db-frequency-3000-hz-what People with good hearing can perceive sounds as low in level as -8.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe21/thumbs-ed1ch17pe21-00002.png People with good hearing can perceive sounds as low in level as -8.00 dB at a frequency of 3000 Hz. What is the intensity of this sound in watts per meter squared? https://seo-videos.collegephysicsanswers.com/ch17/pe21/ed1ch17pe21.mp4 77 129 3.8 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/air-show-jet-flies-directly-toward-stands-speed-1200-kmh-emitting-frequency-3500 (a) At an air show a jet flies directly toward the stands at a speed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe31/thumbs-ed1ch17pe31-00002.png (a) At an air show a jet flies directly toward the stands at a speed of 1200 km/h, emitting a frequency of 3500 Hz, on a day when the speed of sound is 342 m/s. What frequency is received by the observers? (b) What frequency do they receive as the plane flies directly away from them? https://seo-videos.collegephysicsanswers.com/ch17/pe31/ed1ch17pe31.mp4 160 165 3.7 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-intensity-watts-meter-squared-just-barely-audible-200-hz-sound-b-what (a) What is the intensity in watts per meter squared of a just barely… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe67/thumbs-ed1ch17pe67-00002.png (a) What is the intensity in watts per meter squared of a just barely audible 200-Hz sound? (b) What is the intensity in watts per meter squared of a barely audible 4000-Hz sound? https://seo-videos.collegephysicsanswers.com/ch17/pe67/ed1ch17pe67.mp4 197 197 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/155-db-ultrasound-range-intensities-used-deep-heating-calculate-intensity Is 155-dB ultrasound in the range of intensities used for deep… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe73/thumbs-ed1ch17pe73-00002.png Is 155-dB ultrasound in the range of intensities used for deep heating? Calculate the intensity of this ultrasound and compare this intensity with values quoted in the text. https://seo-videos.collegephysicsanswers.com/ch17/pe73/ed1ch17pe73.mp4 101 166 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-day-temperature-80000-l-swimming-pool-increases-150textrmccirc-what-net-heat On a hot day, the temperature of an 80,000-L swimming pool increases… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe01/thumbs-ed1ch14pe01-00002.png On a hot day, the temperature of an 80,000-L swimming pool increases by 1.50 C °. What is the net heat transfer during this heating? Ignore any complications, such as loss of water by evaporation. https://d1igkeoc1zsqhw.cloudfront.net/ch14/pe01/ed1ch14pe01.mp4 86 532 4.5 2018-09-28 no 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sterilize-500-g-glass-baby-bottle-we-must-raise-its-temperature-220circtextrmc To sterilize a 50.0-g glass baby bottle, we must raise its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe03/thumbs-ed1ch14pe03-00002.png To sterilize a 50.0-g glass baby bottle, we must raise its temperature from 22.0° C to 95.0° C . How much heat transfer is required? https://seo-videos.collegephysicsanswers.com/ch14/pe03/ed1ch14pe03.mp4 52 458 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-tightening-bolt-you-push-perpendicularly-wrench-force-165-n-distance-0140-m When tightening a bolt, you push perpendicularly on a wrench with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe02/ed1ch09pe02b-thumbnail_0.jpg When tightening a bolt, you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of the bolt. (a) How much torque are you exerting in newton × meters (relative to the center of the bolt)? (b) Convert this torque to footpounds. https://seo-videos.collegephysicsanswers.com/ch09/pe02/ed1ch09pe02b-2.mp4 71 986 4 2023-12-22 yes 2023-12-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-horse-leans-against-wall-figure-930-calculate-force-exerted-wall Suppose a horse leans against a wall as in Figure 9.30. Calculate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe06/thumbs-ed1ch09pe06-00002.png Suppose a horse leans against a wall as in Figure 9.30. Calculate the force exerted on the wall assuming that force is horizontal while using the data in the schematic representation of the situation. Note that the force exerted on the wall is equal in magnitude and opposite in direction to the force exerted on the horse, keeping it in equilibrium. The total mass of the horse and rider is 500 kg. Take the data to be accurate to three digits. https://seo-videos.collegephysicsanswers.com/ch09/pe06/ed1ch09pe06.mp4 81 603 3.5 2020-03-09 yes 2020-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resistance-would-you-put-parallel-400textrm-omega-galvanometer-having (a) What resistance would you put in parallel with a 40.0 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe56/thumbs-ed1ch21pe56-00002.png (a) What resistance would you put in parallel with a 40.0 \Omega galvanometer having a 25.0 \mu A sensitivity to allow it to be used as an ammeter that has a full-scale deflection for 10.0 \mu A ? (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch21/pe56/ed1ch21pe56.mp4 135 4 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-second-condition-equilibrium-tautextrmnet-0-calculate-fp-example-91 Use the second condition for equilibrium (\tau\_{ net } = 0) to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe04/thumbs-ed1ch09pe04-00002.png Use the second condition for equilibrium (\tau\_{ net } = 0) to calculate F\_p in [Example 9.1](https://openstax.org/books/college-physics/pages/9-2-the-second-condition-for-equilibrium#fs-id2603151), employing any data given or solved for in part (a) of the example. https://seo-videos.collegephysicsanswers.com/ch09/pe04/ed1ch09pe04.mp4 96 345 5 2020-03-09 yes 2020-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/170-m-high-and-110-m-long-wall-under-construction-and-its-bracing-are-shown A 17.0-m-high and 11.0-m-long wall under construction and its bracing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe10/thumbs-ed1ch09pe10-00002.png A 17.0-m-high and 11.0-m-long wall under construction and its bracing are shown in Figure 9.31. The wall is in stable equilibrium without the bracing but can pivot at its base. Calculate the force exerted by each of the 10 braces if a strong wind exerts a horizontal force of 650 N on each square meter of the wall. Assume that the net force from the wind acts at a height halfway up the wall and that all braces exert equal forces parallel to their lengths. Neglect the thickness of the wall. https://seo-videos.collegephysicsanswers.com/ch09/pe10/ed1ch09pe10.mp4 139 715 3.9 2020-03-09 yes 2020-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-weight-drawbridge-figure-933-supported-entirely-its-hinges-and-opposite Suppose the weight of the drawbridge in Figure 9.33 is supported… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe12/thumbs-ed1ch09pe12-00002.png Suppose the weight of the drawbridge in Figure 9.33 is supported entirely by its hinges and the opposite shore, so that its cables are slack. The mass of the bridge is 2500 kg. (a) What fraction of the weight is supported by the opposite shore if the point of support is directly beneath the cable attachments? (b) What is the direction and magnitude of the force the hinges exert on the bridge under these circumstances? https://seo-videos.collegephysicsanswers.com/ch09/pe12/ed1ch09pe12.mp4 171 592 3.6 2020-03-09 yes 2020-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-magnitude-and-direction-force-each-foot-horse-figure-930-two-are (a) Calculate the magnitude and direction of the force on each foot… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe08/thumbs-ed1ch09pe08-00002.png (a) Calculate the magnitude and direction of the force on each foot of the horse in Figure 9.30 (two are on the ground), assuming the center of mass of the horse is midway between the feet. The total mass of the horse and rider is 500kg. (b) What is the minimum coefficient of friction between the hooves and ground? Note that the force exerted by the wall is horizontal. https://seo-videos.collegephysicsanswers.com/ch09/pe08/ed1ch09pe08.mp4 320 555 4.3 2020-03-09 yes 2020-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sandwich-board-advertising-sign-constructed-shown-figure-934-signs-mass-800-kg A sandwich board advertising sign is constructed as shown in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe14/thumbs-ed1ch09pe14-00002.png A sandwich board advertising sign is constructed as shown in Figure 9.34. The sign’s mass is 8.00 kg. (a) Calculate the tension in the chain assuming no friction between the legs and the sidewalk. (b) What force is exerted by each side on the hinge? https://seo-videos.collegephysicsanswers.com/ch09/pe14/ed1ch09pe14.mp4 386 529 4.4 2020-03-09 yes 2020-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gymnast-attempting-perform-splits-information-given-figure-935-calculate A gymnast is attempting to perform splits. From the information given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe16/thumbs-ed1ch09pe16-00002.png A gymnast is attempting to perform splits. From the information given in Figure 9.35, calculate the magnitude and direction of the force exerted on each foot by the floor. https://seo-videos.collegephysicsanswers.com/ch09/pe16/ed1ch09pe16.mp4 99 237 5 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-told-basketball-player-spins-ball-angular-acceleration-100-rads2-what You are told that a basketball player spins the ball with an angular… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe04/thumbs-ed1ch10pe04-00002.png You are told that a basketball player spins the ball with an angular acceleration of 100 rad/s ^2. (a) What is the ball’s final angular velocity if the ball starts from rest and the acceleration lasts 2.00 s? (b) What is unreasonable about the result? (c) Which premises are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch10/pe04/ed1ch10pe04.mp4 78 236 4.4 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-piece-dust-finds-itself-cd-if-spin-rate-cd-500-rpm-and-piece-dust-43-cm Suppose a piece of dust finds itself on a CD. If the spin rate of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe06/thumbs-ed1ch10pe06-00002.png Suppose a piece of dust finds itself on a CD. If the spin rate of the CD is 500 rpm, and the piece of dust is 4.3 cm from the center, what is the total distance traveled by the dust in 3 minutes? (Ignore accelerations due to getting the CD rotating.) https://seo-videos.collegephysicsanswers.com/ch10/pe06/ed1ch10pe06.mp4 89 387 4.2 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mantles-gas-lanterns-contain-thorium-because-it-forms-oxide-can-survive-being Mantles for gas lanterns contain thorium, because it forms an oxide… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe48/thumbs-ed1ch31pe48-00002.png Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to incandescence for long periods of time. Natural thorium is almost 100% {}^{232} Th , with a half-life of 1.405 x 10^{10} y . If an average lantern mantle contains 300 mg of thorium, what is its activity? https://seo-videos.collegephysicsanswers.com/ch31/pe48/ed1ch31pe48.mp4 84 102 5 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ultracentrifuge-accelerates-rest-100000-rpm-200-min-what-its-angular An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe02/thumbs-ed1ch10pe02-00002.png An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is its angular acceleration in rad/s ^2 ? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the radial acceleration in m/s ^2 and multiples of g of this point at full rpm? https://seo-videos.collegephysicsanswers.com/ch10/pe02/ed1ch10pe02.mp4 196 974 5 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-simplicity-earths-magnetic-north-pole-same-location-its-geographic-north Assume for simplicity that the Earth’s magnetic north pole is at the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap02/thumbs-ed1ch22ap02-00002.png Assume for simplicity that the Earth’s magnetic north pole is at the same location as its geographic north pole. If you are in an airplane flying due west along the equator, as you cross the prime meridian (0° longitude) facing west and look down at a compass you are carrying, you see that the compass needle is perpendicular to your direction of motion, and the north pole of the needle dipole points to your right. As you continue flying due west, describe how and why the orientation of the needle will (or will not) change. https://seo-videos.collegephysicsanswers.com/ch22/ap02/ed1ch22ap02.mp4 297 2 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-very-quick-stop-car-decelerates-700-ms2-what-angular-acceleration-its During a very quick stop, a car decelerates at 7.00 m/s ^2 . (a) What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe08/thumbs-ed1ch10pe08-00002.png During a very quick stop, a car decelerates at 7.00 m/s ^2 . (a) What is the angular acceleration of its 0.280-m-radius tires, assuming they do not slip on the pavement? (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity is 95.0 rad/s? (c) How long does the car take to stop completely? (d) What distance does the car travel in this time? (e) What was the car’s initial velocity? (f) Do the values obtained seem reasonable, considering that this stop happens very quickly? https://seo-videos.collegephysicsanswers.com/ch10/pe08/ed1ch10pe08.mp4 209 962 3.9 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/weather-vane-some-sort-directional-arrow-parallel-ground-may-rotate-freely A weather vane is some sort of directional arrow parallel to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap06/thumbs-ed1ch22ap06-00002.png A weather vane is some sort of directional arrow parallel to the ground that may rotate freely in a horizontal plane. A typical weather vane has a large cross-sectional area perpendicular to the direction the arrow is pointing, like a “One Way” street sign. The purpose of the weather vane is to indicate the direction of the wind. As wind blows past the weather vane, it tends to orient the arrow in the same direction as the wind. Consider a weather vane’s response to a strong wind. Explain how this is both similar to and different from a magnetic domain’s response to an external magnetic field. How does each affect its surroundings? https://seo-videos.collegephysicsanswers.com/ch22/ap06/ed1ch22ap06.mp4 213 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/proton-moves-speed-240-ms-x-direction-region-45-t-uniform-magnetic-field A proton moves with a speed of 240 m/s in the +x-direction into a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap08/thumbs-ed1ch22ap08-00002.png A proton moves with a speed of 240 m/s in the +x-direction into a region of a 4.5-T uniform magnetic field directed 62° above the +x-direction in the x,y-plane. Calculate the magnitude of the magnetic force on the proton. https://seo-videos.collegephysicsanswers.com/ch22/ap08/ed1ch22ap08.mp4 58 2 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/airplane-wingspan-can-be-approximated-conducting-rod-length-35-m-airplane-flies An airplane wingspan can be approximated as a conducting rod of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/ap10/thumbs-ed1ch22ap10-00002.png An airplane wingspan can be approximated as a conducting rod of length 35 m. As the airplane flies due north, it is flying at a rate of 82 m/s through the Earth’s magnetic field, which has a magnitude of 45 \mu T toward the north in a direction 57° below the horizontal plane. (a) Which end of the wingspan is positively charged, the east or west end? Explain. (b) What is the Hall emf along the wingspan? https://seo-videos.collegephysicsanswers.com/ch22/ap10/ed1ch22ap10.mp4 134 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-considers-additional-aspects-example-107-calculating-effect-mass This problem considers additional aspects of example [10.7,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe10/thumbs-ed1ch10pe10-00002.png This problem considers additional aspects of example [10.7, Calculating the Effect of Mass Distribution on a Merry- Go-Round.](https://openstax.org/books/college-physics/pages/10-3-dynamics-of-rotational-motion-rotational-inertia#fs-id1468671) (a) How long does it take the father to give the merry-go-round an angular velocity of 1.50 rad/s? (b) How many revolutions must he go through to generate this velocity? (c) If he exerts a slowing force of 300 N at a radius of 1.35 m, how long would it take him to stop them? https://seo-videos.collegephysicsanswers.com/ch10/pe10/ed1ch10pe10.mp4 326 745 3.8 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/triceps-muscle-back-upper-arm-extends-forearm-muscle-professional-boxer-exerts The triceps muscle in the back of the upper arm extends the forearm.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe12/thumbs-ed1ch10pe12-00002.png The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional boxer exerts a force of 2.00 x 10^{3} N with an effective perpendicular lever arm of 3.00 cm, producing an angular acceleration of the forearm of 120 rad/s ^2. What is the moment of inertia of the boxer’s forearm? https://seo-videos.collegephysicsanswers.com/ch10/pe12/ed1ch10pe12.mp4 66 525 3.9 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-final-velocity-hoop-rolls-without-slipping-down-500-m-high-hill-starting What is the final velocity of a hoop that rolls without slipping down… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe22/thumbs-ed1ch10pe22-00002.png What is the final velocity of a hoop that rolls without slipping down a 5.00-m-high hill, starting from rest? https://seo-videos.collegephysicsanswers.com/ch10/pe22/ed1ch10pe22.mp4 146 1094 4.1 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-exert-force-180-n-tangential-0280-m-radius-750-kg-grindstone-solid Suppose you exert a force of 180 N tangential to a 0.280-m-radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe14/thumbs-ed1ch10pe14-00002.png Suppose you exert a force of 180 N tangential to a 0.280-m-radius 75.0-kg grindstone (a solid disk). (a)What torque is exerted? (b) What is the angular acceleration assuming negligible opposing friction? (c) What is the angular acceleration if there is an opposing frictional force of 20.0 N exerted 1.50 cm from the axis? https://seo-videos.collegephysicsanswers.com/ch10/pe14/ed1ch10pe14.mp4 155 847 3.4 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rotational-kinetic-energy-motorcycle-wheel-figure-1038-if-its-angular Calculate the rotational kinetic energy in the motorcycle wheel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe24/thumbs-ed1ch10pe24-00002.png Calculate the rotational kinetic energy in the motorcycle wheel (Figure 10.38) if its angular velocity is 120 rad/s. Assume M = 12.0 kg, R1 = 0.280 m, and R2 = 0.330 m. https://seo-videos.collegephysicsanswers.com/ch10/pe24/ed1ch10pe24.mp4 88 366 4.5 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/zorch-archenemy-superman-decides-slow-earths-rotation-once-280-h-exerting Zorch, an archenemy of Superman, decides to slow Earth’s rotation to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe16/thumbs-ed1ch10pe16-00002.png Zorch, an archenemy of Superman, decides to slow Earth’s rotation to once per 28.0 h by exerting an opposing force at and parallel to the equator. Superman is not immediately concerned, because he knows Zorch can only exert a force of 4.00 x 10^{7} N (a little greater than a Saturn V rocket’s thrust). How long must Zorch push with this force to accomplish his goal? (This period gives Superman time to devote to other villains.) Explicitly show how you follow the steps found in Problem-Solving Strategy for Rotational Dynamics. https://seo-videos.collegephysicsanswers.com/ch10/pe16/ed1ch10pe16c.mp4 318 397 3.5 2024-01-08 yes 2024-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/while-punting-football-kicker-rotates-his-leg-about-hip-joint-moment-inertia-leg While punting a football, a kicker rotates his leg about the hip… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe26/thumbs-ed1ch10pe26-00002.png While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the leg is 3.75 kg \cdot m ^2 and its rotational kinetic energy is 175 J. (a) What is the angular velocity of the leg? (b) What is the velocity of tip of the punter’s shoe if it is 1.05 m from the hip joint? (c) Explain how the football can be given a velocity greater than the tip of the shoe (necessary for a decent kick distance). https://seo-videos.collegephysicsanswers.com/ch10/pe26/ed1ch10pe26.mp4 134 172 4.4 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-angular-momentum-earth-its-orbit-around-sun-b-compare-angular-momentum (a) Calculate the angular momentum of the Earth in its orbit around… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe36/thumbs-ed1ch10pe36-00002.png (a) Calculate the angular momentum of the Earth in its orbit around the Sun. (b) Compare this angular momentum with the angular momentum of Earth on its axis. https://seo-videos.collegephysicsanswers.com/ch10/pe36/ed1ch10pe36.mp4 123 680 4 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-initial-velocity-800-ms-rolls-hill-without-slipping-treating-ball-spherical A ball with an initial velocity of 8.00 m/s rolls up a hill without… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe28/thumbs-ed1ch10pe28-00002.png A ball with an initial velocity of 8.00 m/s rolls up a hill without slipping. Treating the ball as a spherical shell, calculate the vertical height it reaches. (b) Repeat the calculation for the same ball if it slides up the hill without rolling. https://seo-videos.collegephysicsanswers.com/ch10/pe28/ed1ch10pe28.mp4 159 532 3.3 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/three-children-are-riding-edge-merry-go-round-100-kg-has-160-m-radius-and Three children are riding on the edge of a merry-go-round that is 100… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe40/thumbs-ed1ch10pe40-00002.png Three children are riding on the edge of a merry-go-round that is 100 kg, has a 1.60-m radius, and is spinning at 20.0 rpm. The children have masses of 22.0, 28.0, and 33.0 kg. If the child who has a mass of 28.0 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm? https://seo-videos.collegephysicsanswers.com/ch10/pe40/ed1ch10pe40.mp4 256 492 4.8 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-0250-kg-ball-thrown-150-ms-motionless-person-standing-ice-who-catches-it Suppose a 0.250-kg ball is thrown at 15.0 m/s to a motionless person… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe46/thumbs-ed1ch10pe46-00002.png Suppose a 0.250-kg ball is thrown at 15.0 m/s to a motionless person standing on ice who catches it with an outstretched arm as shown in Figure 10.40. (a) Calculate the final linear velocity of the person, given his mass is 70.0 kg. (b) What is his angular velocity if each arm is 5.00 kg? You may treat the ball as a point mass and treat the person's arms as uniform rods (each has a length of 0.900 m) and the rest of his body as a uniform cylinder of radius 0.180 m. Neglect the effect of the ball on his center of mass so that his center of mass remains in his geometrical center. (c) Compare the initial and final total kinetic energies. https://seo-videos.collegephysicsanswers.com/ch10/pe46/ed1ch10pe46b.mp4 518 236 4.2 2024-01-11 yes 2024-01-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-example-1015-which-disk-originally-spins-clockwise-1000-rpm-and-has Repeat Example 10.15 in which the disk originally spins clockwise at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe44/thumbs-ed1ch10pe44-00002.png Repeat Example 10.15 in which the disk originally spins clockwise at 1000 rpm and has a radius of 1.50 cm.**Example 10.15** Suppose the disk in Figure 10.26 has a mass of 50.0 g and an initial velocity of 30.0 m/s when it strikes the stick that is 1.20 m long and 2.00 kg. (a) What is the angular velocity of the two after the collision? (b) What is the kinetic energy before and after the collision? (c) What is the total linear momentum before and after the collision? https://seo-videos.collegephysicsanswers.com/ch10/pe44/ed1ch10pe44.mp4 502 64 3.5 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/convert-normal-blood-pressure-readings-120-over-80-mm-hg-newtons-meter-squared (a) Convert normal blood pressure readings of 120 over 80 mm Hg to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe30/thumbs-ed1ch11pe30-00002.png (a) Convert normal blood pressure readings of 120 over 80 mm Hg to newtons per meter squared using the relationship for pressure due to the weight of a fluid (P = h \rho g) rather than a conversion factor. (b) Discuss why blood pressures for an infant could be smaller than those for an adult. Specifically, consider the smaller height to which blood must be pumped. https://seo-videos.collegephysicsanswers.com/ch11/pe30/ed1ch11pe30.mp4 70 282 4.5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-pressure-transmitted-hydraulic-system-considered-example-116-express How much pressure is transmitted in the hydraulic system considered… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe24/thumbs-ed1ch11pe24-00002.png How much pressure is transmitted in the hydraulic system considered in Example 11.6? Express your answer in pascals and in atmospheres.**Example 11.6** Consider the automobile hydraulic system shown in Figure 11.13. A force of 100 N is applied to the brake pedal, which acts on the cylinder—called the master—through a lever. A force of 500 N is exerted on the master cylinder. Pressure created in the master cylinder is transmitted to four so-called slave cylinders. The master cylinder has a diameter of 0.500 cm, and each slave cylinder has a diameter of 2.50 cm. https://seo-videos.collegephysicsanswers.com/ch11/pe24/ed1ch11pe24.mp4 67 150 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fraction-ice-submerged-when-it-floats-freshwater-given-density-water What fraction of ice is submerged when it floats in freshwater, given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe36/thumbs-ed1ch11pe36-00002.png What fraction of ice is submerged when it floats in freshwater, given the density of water at 0° C is very close to 1000 kg/m ^3 https://seo-videos.collegephysicsanswers.com/ch11/pe36/ed1ch11pe36.mp4 40 276 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pressure-cookers-have-been-around-more-300-years-although-their-use-has-strongly Pressure cookers have been around for more than 300 years, although… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe32/thumbs-ed1ch11pe32-00002.png Pressure cookers have been around for more than 300 years, although their use has strongly declined in recent years (early models had a nasty habit of exploding). How much force must the latches holding the lid onto a pressure cooker be able to withstand if the circular lid is 25.0 cm in diameter and the gauge pressure inside is 3 atm? Neglect the weight of the lid. https://seo-videos.collegephysicsanswers.com/ch11/pe32/ed1ch11pe32.mp4 120 134 4 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/crass-host-pours-remnants-several-bottles-wine-jug-after-party-he-then-inserts A crass host pours the remnants of several bottles of wine into a jug… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe26/thumbs-ed1ch11pe26-00002.png A crass host pours the remnants of several bottles of wine into a jug after a party. He then inserts a cork with a 2.00-cm diameter into the bottle, placing it in direct contact with the wine. He is amazed when he pounds the cork into place and the bottom of the jug (with a 14.0-cm diameter) breaks away. Calculate the extra force exerted against the bottom if he pounded the cork with a 120-N force. https://seo-videos.collegephysicsanswers.com/ch11/pe26/ed1ch11pe26.mp4 128 531 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/submarine-stranded-bottom-ocean-its-hatch-250-m-below-surface-calculate-force A submarine is stranded on the bottom of the ocean with its hatch… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe34/thumbs-ed1ch11pe34-00002.png A submarine is stranded on the bottom of the ocean with its hatch 25.0 m below the surface. Calculate the force needed to open the hatch from the inside, given it is circular and 0.450 m in diameter. Air pressure inside the submarine is 1.00 atm. https://seo-videos.collegephysicsanswers.com/ch11/pe34/ed1ch11pe34.mp4 140 393 3.7 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/archimedes-principle-can-be-used-calculate-density-fluid-well-solid-suppose Archimedes’ principle can be used to calculate the density of a fluid… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe42/thumbs-ed1ch11pe42-00002.png Archimedes’ principle can be used to calculate the density of a fluid as well as that of a solid. Suppose a chunk of iron with a mass of 390.0 g in air is found to have an apparent mass of 350.5 g when completely submerged in an unknown liquid. (a) What mass of fluid does the iron displace? (b) What is the volume of iron, using its density as given in Table 11.1 (c) Calculate the fluid’s density and identify it. https://seo-videos.collegephysicsanswers.com/ch11/pe42/ed1ch11pe42.mp4 172 269 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-density-woman-who-floats-freshwater-400-her-volume-above-surface-could-be (a) What is the density of a woman who floats in freshwater with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe46/thumbs-ed1ch11pe46-00002.png (a) What is the density of a woman who floats in freshwater with 4.00% of her volume above the surface? This could be measured by placing her in a tank with marks on the side to measure how much water she displaces when floating and when held under water (briefly). (b) What percent of her volume is above the surface when she floats in seawater? https://seo-videos.collegephysicsanswers.com/ch11/pe46/ed1ch11pe46.mp4 100 82 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/simple-compass-can-be-made-placing-small-bar-magnet-cork-floating-water-what A simple compass can be made by placing a small bar magnet on a cork… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe48/thumbs-ed1ch11pe48-00002.png A simple compass can be made by placing a small bar magnet on a cork floating in water. (a) What fraction of a plain cork will be submerged when floating in water? (b) If the cork has a mass of 10.0 g and a 20.0-g magnet is placed on it, what fraction of the cork will be submerged? (c) Will the bar magnet and cork float in ethyl alcohol? https://seo-videos.collegephysicsanswers.com/ch11/pe48/ed1ch11pe48.mp4 201 62 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/major-artery-cross-sectional-area-100-cm2-branches-18-smaller-arteries-each A major artery with a cross-sectional area of 1.00 cm ^2 branches… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe06/thumbs-ed1ch12pe06-00002.png A major artery with a cross-sectional area of 1.00 cm ^2 branches into 18 smaller arteries, each with an average cross-sectional area of 0.400 cm ^2. By what factor is the average velocity of the blood reduced when it passes into these branches? https://seo-videos.collegephysicsanswers.com/ch12/pe06/ed1ch12pe06.mp4 114 262 3.7 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-fish-have-density-slightly-less-water-and-must-exert-force-swim-stay Some fish have a density slightly less than that of water and must… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe44/thumbs-ed1ch11pe44-00002.png Some fish have a density slightly less than that of water and must exert a force (swim) to stay submerged. What force must an 85.0-kg grouper exert to stay submerged in salt water if its body density is 1015 kg/m ^3? https://seo-videos.collegephysicsanswers.com/ch11/pe44/ed1ch11pe44.mp4 195 312 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/human-circulation-system-has-approximately-1times-109-capillary-vessels-each The human circulation system has approximately 1 x 10^{9} capillary… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe08/thumbs-ed1ch12pe08-00002.png The human circulation system has approximately 1 x 10^{9} capillary vessels. Each vessel has a diameter of about 8 \mu m . Assuming cardiac output is 5 L/min, determine the average velocity of blood flow through each capillary vessel. https://seo-videos.collegephysicsanswers.com/ch12/pe08/ed1ch12pe08.mp4 118 240 3 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heart-resting-adult-pumps-blood-rate-500-lmin-convert-textrmcm2textrms-b-what The heart of a resting adult pumps blood at a rate of 5.00 L/min. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe02/thumbs-ed1ch12pe02-00002.png The heart of a resting adult pumps blood at a rate of 5.00 L/min. (a) Convert this to cm ^2/ s . (b) What is this rate in m ^2/ s ? https://seo-videos.collegephysicsanswers.com/ch12/pe02/ed1ch12pe02.mp4 125 170 3 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/main-uptake-air-duct-forced-air-gas-heater-0300-m-diameter-what-average-speed The main uptake air duct of a forced air gas heater is 0.300 m in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe12/thumbs-ed1ch12pe12-00002.png The main uptake air duct of a forced air gas heater is 0.300 m in diameter. What is the average speed of air in the duct if it carries a volume equal to that of the house’s interior every 15 min? The inside volume of the house is equivalent to a rectangular solid 13.0 m wide by 20.0 m long by 2.75 m high. https://seo-videos.collegephysicsanswers.com/ch12/pe12/ed1ch12pe12.mp4 116 385 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/flow-rate-blood-through-200times-10-6textrm-m-radius-capillary-380times-10 The flow rate of blood through a 2.00 x 10^{-6} m radius capillary… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe10/thumbs-ed1ch12pe10-00002.png The flow rate of blood through a 2.00 x 10^{-6} m radius capillary is 3.80 x 10^{-9} cm ^3/ s . (a) What is the speed of the blood flow? (This small speed allows time for diffusion of materials to and from the blood.) (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 90.0 cm ^3/ s ? (The large number obtained is an overestimate, but it is still reasonable.) https://seo-videos.collegephysicsanswers.com/ch12/pe10/ed1ch12pe10b.mp4 204 205 2024-01-11 yes 2024-01-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/frequently-quoted-rule-thumb-aircraft-design-wings-should-produce-about-1000-n A frequently quoted rule of thumb in aircraft design is that wings… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe26/thumbs-ed1ch12pe26-00002.png A frequently quoted rule of thumb in aircraft design is that wings should produce about 1000 N of lift per square meter of wing. (The fact that a wing has a top and bottom surface does not double its area.) (a) At takeoff, an aircraft travels at 60.0 m/s, so that the air speed relative to the bottom of the wing is 60.0 m/s. Given the sea level density of air to be 1.29 kg/m ^3, how fast must it move over the upper surface to create the ideal lift? (b) How fast must air move over the upper surface at a cruising speed of 245 m/s and at an altitude where air density is one-fourth that at sea level? (Note that this is not all of the aircraft’s lift—some comes from the body of the plane, some from engine thrust, and so on. Furthermore, Bernoulli’s principle gives an approximate answer because flow over the wing creates turbulence.) https://seo-videos.collegephysicsanswers.com/ch12/pe26/ed1ch12pe26.mp4 184 246 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pressure-drop-along-length-artery-100-pa-radius-10-mm-and-flow-laminar-average The pressure drop along a length of artery is 100 Pa, the radius is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe32/thumbs-ed1ch12pe32-00002.png The pressure drop along a length of artery is 100 Pa, the radius is 10 mm, and the flow is laminar. The average speed of the blood is 15 mm/s. (a) What is the net force on the blood in this section of artery? (b) What is the power expended maintaining the flow? https://seo-videos.collegephysicsanswers.com/ch12/pe32/ed1ch12pe32.mp4 108 391 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/frustrated-small-hall-voltage-obtained-blood-flow-measurements-medical-physicist Frustrated by the small Hall voltage obtained in blood flow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe88/thumbs-ed1ch22pe88-00002.png Frustrated by the small Hall voltage obtained in blood flow measurements, a medical physicist decides to increase the applied magnetic field strength to get a 0.500-V output for blood moving at 30.0 cm/s in a 1.50-cm-diameter vessel. (a) What magnetic field strength is needed? (b) What is unreasonable about this result? (c) Which premise is responsible? https://seo-videos.collegephysicsanswers.com/ch22/pe88/ed1ch22pe88.mp4 105 2 5 2020-11-13 yes 2020-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-needed-pull-one-microscope-slide-over-another-speed-100-cms-if-there What force is needed to pull one microscope slide over another at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe30/thumbs-ed1ch12pe30-00002.png What force is needed to pull one microscope slide over another at a speed of 1.00 cm/s, if there is a 0.500-mm-thick layer of 20° C water between them and the contact area is 8.00 cm ^2? https://seo-videos.collegephysicsanswers.com/ch12/pe30/ed1ch12pe30.mp4 134 336 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-magnetic-flux-coil-area-02textrm-m2-placed-angle-theta60circ-magnetic Calculate the magnetic flux for a coil of area 0.2 m ^2 placed at an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap02/thumbs-ed1ch23ap02-00002.png Calculate the magnetic flux for a coil of area 0.2 m ^2 placed at an angle of \theta=60° to a magnetic field of strength 1.5 x 10^{-3} T . At what angle will the flux be at its maximum? https://seo-videos.collegephysicsanswers.com/ch23/ap02/ed1ch23ap02.mp4 100 8 2021-04-02 yes 2021-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-true-step-down-transformer-select-two-answers-primary Which of the following statements is true for a step-down… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap05/thumbs-ed1ch23ap05-00002.png Which of the following statements is true for a step-down transformer? Select two answers. (a) Primary voltage is higher than secondary voltage.(b) Primary voltage is lower than secondary voltage.(c) Primary current is higher than secondary current.(d) Primary current is lower than secondary current. https://seo-videos.collegephysicsanswers.com/ch23/ap05/ed1ch23ap05.mp4 82 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-hydrogen-and-oxygen-are-diffusing-through-air-small-amount-each-released Suppose hydrogen and oxygen are diffusing through air. A small amount… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe66/thumbs-ed1ch12pe66-00002.png Suppose hydrogen and oxygen are diffusing through air. A small amount of each is released simultaneously. How much time passes before the hydrogen is 1.00 s ahead of the oxygen? Such differences in arrival times are used as an analytical tool in gas chromatography. https://seo-videos.collegephysicsanswers.com/ch12/pe66/ed1ch12pe66.mp4 197 471 3 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-flow-rate-might-turbulence-begin-develop-water-main-0200-m-diameter-assume At what flow rate might turbulence begin to develop in a water main… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe56/thumbs-ed1ch12pe56-00002.png At what flow rate might turbulence begin to develop in a water main with a 0.200-m diameter? Assume a 20° C temperature. https://seo-videos.collegephysicsanswers.com/ch12/pe56/ed1ch12pe56.mp4 206 87 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fire-hose-has-inside-diameter-640-cm-suppose-such-hose-carries-flow-400-ls A fire hose has an inside diameter of 6.40 cm. Suppose such a hose… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe54/thumbs-ed1ch12pe54-00002.png A fire hose has an inside diameter of 6.40 cm. Suppose such a hose carries a flow of 40.0 L/s starting at a gauge pressure of 1.62 x 10^{6} N/m ^2. The hose goes 10.0 m up a ladder to a nozzle having an inside diameter of 3.00 cm. Calculate the Reynolds numbers for flow in the fire hose and nozzle to show that the flow in each must be turbulent. https://seo-videos.collegephysicsanswers.com/ch12/pe54/ed1ch12pe54.mp4 345 63 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-taller-does-eiffel-tower-become-end-day-when-temperature-has-increased How much taller does the Eiffel Tower become at the end of a day when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe10/thumbs-ed1ch13pe10-00002.png How much taller does the Eiffel Tower become at the end of a day when the temperature has increased by 15 C ° ? Its original height is 321 m and you can assume it is made of steel. https://seo-videos.collegephysicsanswers.com/ch13/pe10/ed1ch13pe10.mp4 61 283 3.7 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/frost-damage-most-plants-occurs-temperatures-280circtextrmf-or-lower-what Frost damage to most plants occurs at temperatures of 28.0° F or… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe02/thumbs-ed1ch13pe02-00002.png Frost damage to most plants occurs at temperatures of 28.0° F or lower. What is this temperature on the Kelvin scale? https://seo-videos.collegephysicsanswers.com/ch13/pe02/ed1ch13pe02.mp4 115 179 5 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gauge-pressure-your-car-tires-250times-105textrm-nm2-temperature-350circtextrmc The gauge pressure in your car tires is 2.50 x 10^{5} N/m ^2 at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe22/thumbs-ed1ch13pe22-00002.png The gauge pressure in your car tires is 2.50 x 10^{5} N/m ^2 at a temperature of 35.0° C when you drive it onto a ferry boat to Alaska. What is their gauge pressure later, when their temperature has dropped to -40.0° C ? https://seo-videos.collegephysicsanswers.com/ch13/pe22/ed1ch13pe22.mp4 164 445 5 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-number-moles-200-l-volume-air-lungs-average-person-note-air Calculate the number of moles in the 2.00-L volume of air in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe28/thumbs-ed1ch13pe28-00002.png Calculate the number of moles in the 2.00-L volume of air in the lungs of the average person. Note that the air is at 37.0° C (body temperature). https://seo-videos.collegephysicsanswers.com/ch13/pe28/ed1ch13pe28.mp4 96 347 5 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/number-density-gas-atoms-certain-location-space-above-our-planet-about-100times The number density of gas atoms at a certain location in the space… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe32/thumbs-ed1ch13pe32-00002.png The number density of gas atoms at a certain location in the space above our planet is about 1.00 x 10^{11} m ^{-3}, and the pressure is 2.75 x 10^{-10} N/m ^2 in this space. What is the temperature there? https://seo-videos.collegephysicsanswers.com/ch13/pe32/ed1ch13pe32.mp4 106 267 3 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-gas-filled-incandescent-light-bulb-manufactured-so-gas-inside-bulb Suppose a gas-filled incandescent light bulb is manufactured so that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe24/thumbs-ed1ch13pe24-00002.png Suppose a gas-filled incandescent light bulb is manufactured so that the gas inside the bulb is at atmospheric pressure when the bulb has a temperature of 20.0° C . (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 60.0° C (an approximation) and neglecting any change in volume due to thermal expansion or gas leaks. (b) The actual final pressure for the light bulb will be less than calculated in part (a) because the glass bulb will expand. What will the actual final pressure be, taking this into account? Is this a negligible difference? https://seo-videos.collegephysicsanswers.com/ch13/pe24/ed1ch13pe24.mp4 454 189 5 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-example-2314-find-average-power-100-khz Referring to [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe106/thumbs-ed1ch23pe106-00002.png Referring to [Example 23.14](https://openstax.org/books/college-physics/pages/23-12-rlc-series-ac-circuits#fs-id1169737987472), find the average power at 10.0 kHz. https://seo-videos.collegephysicsanswers.com/ch23/pe106/ed1ch23pe106.mp4 168 3 2020-12-17 yes 2020-12-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/deep-space-between-galaxies-density-atoms-low-106-atomsm3-and-temperature-frigid (a) In the deep space between galaxies, the density of atoms is as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe38/thumbs-ed1ch13pe38-00002.png (a) In the deep space between galaxies, the density of atoms is as low as 10^6 atoms/m ^3, and the temperature is a frigid 2.7 K. What is the pressure? (b) What volume (in m ^3) is occupied by 1 mol of gas? (c) If this volume is a cube, what is the length of its sides in kilometers? https://seo-videos.collegephysicsanswers.com/ch13/pe38/ed1ch13pe38.mp4 152 234 4.6 2020-05-08 yes 2020-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-does-water-boil-altitude-1500-m-about-5000-ft-day-when (a) At what temperature does water boil at an altitude of 1500 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe52/thumbs-ed1ch13pe52-00002.png (a) At what temperature does water boil at an altitude of 1500 m (about 5000 ft) on a day when atmospheric pressure is 8.59 x 10^{4} N/m ^2? (b) What about at an altitude of 3000 m (about 10,000 ft) when atmospheric pressure is 7.00 x 10^{4} N/m ^2? https://seo-videos.collegephysicsanswers.com/ch13/pe52/ed1ch13pe52.mp4 62 53 2020-05-11 yes 2020-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/same-heat-transfer-identical-masses-different-substances-produces-different The same heat transfer into identical masses of different substances… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe04/thumbs-ed1ch14pe04-00002.png The same heat transfer into identical masses of different substances produces different temperature changes. Calculate the final temperature when 1.00 kcal of heat transfers into 1.00 kg of the following, originally at 20.0° C : (a) water; (b) concrete; (c) steel; and (d) mercury. https://seo-videos.collegephysicsanswers.com/ch14/pe04/ed1ch14pe04.mp4 149 404 4.4 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bag-containing-0circtextrmc-ice-much-more-effective-absorbing-energy-one A bag containing 0° C ice is much more effective in absorbing energy… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe12/thumbs-ed1ch14pe12-00002.png A bag containing 0° C ice is much more effective in absorbing energy than one containing the same amount of 0° C water. a. How much heat transfer is necessary to raise the temperature of 0.800 kg of water from 0° C to 30.0° C ? b. How much heat transfer is required to first melt 0.800 kg of 0° C ice and then raise its temperature? c. Explain how your answer supports the contention that the ice is more effective. https://seo-videos.collegephysicsanswers.com/ch14/pe12/ed1ch14pe12.mp4 154 443 5 2020-05-15 yes 2020-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/00500-kg-ice-cube-300circtextrmc-placed-0400-kg-350circtextrmc-water-very-well A 0.0500-kg ice cube at -30.0° C is placed in 0.400 kg of 35.0° C … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe24/thumbs-ed1ch14pe24-00002.png A 0.0500-kg ice cube at -30.0° C is placed in 0.400 kg of 35.0° C water in a very well-insulated container. What is the final temperature? https://seo-videos.collegephysicsanswers.com/ch14/pe24/ed1ch14pe24.mp4 420 332 5 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rate-heat-conduction-out-human-body-assuming-core-internal-temperature Calculate the rate of heat conduction out of the human body, assuming… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe32/thumbs-ed1ch14pe32-00002.png Calculate the rate of heat conduction out of the human body, assuming that the core internal temperature is 37.0°\ C , the skin temperature is 34.0° C , the thickness of the tissues between averages 1.00 cm , and the surface area is 1.40 m ^2 . https://seo-videos.collegephysicsanswers.com/ch14/pe32/ed1ch14pe32.mp4 73 211 4.6 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rate-heat-conduction-through-house-walls-are-130-cm-thick-and-have (a) Calculate the rate of heat conduction through house walls that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe30/thumbs-ed1ch14pe30-00002.png (a) Calculate the rate of heat conduction through house walls that are 13.0 cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors. The surface area of the walls is 120 m ^2 and their inside surface is at 18.0° C , while their outside surface is at 5.00° C . (b) How many 1-kW room heaters would be needed to balance the heat transfer due to conduction? https://seo-videos.collegephysicsanswers.com/ch14/pe30/ed1ch14pe30.mp4 70 350 4 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-kilograms-water-must-evaporate-600-kg-woman-lower-her-body-temperature (a) How many kilograms of water must evaporate from a 60.0-kg woman… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe48/thumbs-ed1ch14pe48-00002.png (a) How many kilograms of water must evaporate from a 60.0-kg woman to lower her body temperature by 0.750° C ? (b) Is this a reasonable amount of water to evaporate in the form of perspiration, assuming the relative humidity of the surrounding air is low? https://seo-videos.collegephysicsanswers.com/ch14/pe48/ed1ch14pe48.mp4 109 251 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-heat-transfer-occurs-system-if-its-internal-energy-decreased-150-j How much heat transfer occurs from a system, if its internal energy… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe02/thumbs-ed1ch15pe02-00002.png How much heat transfer occurs from a system, if its internal energy decreased by 150 J while it was doing 30.0 J of work? https://seo-videos.collegephysicsanswers.com/ch15/pe02/ed1ch15pe02.mp4 61 418 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-tire-contains-00380-m3-air-pressure-220times-105textrm-nm2-about-32-psi-how A car tire contains 0.0380 m ^3 of air at a pressure of 2.20 x 10^{5}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe10/thumbs-ed1ch15pe10-00002.png A car tire contains 0.0380 m ^3 of air at a pressure of 2.20 x 10^{5} N/m ^2 (about 32 psi). How much more internal energy does this gas have than the same volume has at zero gauge pressure (which is equivalent to normal atmospheric pressure)? https://seo-videos.collegephysicsanswers.com/ch15/pe10/ed1ch15pe10.mp4 127 447 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-hot-reservoir-temperature-carnot-engine-has-efficiency-420-and-cold (a) What is the hot reservoir temperature of a Carnot engine that has… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe30/thumbs-ed1ch15pe30-00002.png (a) What is the hot reservoir temperature of a Carnot engine that has an efficiency of 42.0% and a cold reservoir temperature of 27.0° C ? (b) What must the hot reservoir temperature be for a real heat engine that achieves 0.700 of the maximum efficiency, but still has an efficiency of 42.0% (and a cold reservoir at 27.0° C )? (c) Does your answer imply practical limits to the efficiency of car gasoline engines? https://seo-videos.collegephysicsanswers.com/ch15/pe30/ed1ch15pe30.mp4 148 389 3.4 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-best-coefficient-performance-refrigerator-cools-environment-300circtextrmc (a) What is the best coefficient of performance for a refrigerator… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe42/thumbs-ed1ch15pe42-00002.png (a) What is the best coefficient of performance for a refrigerator that cools an environment at -30.0° C and has heat transfer to another environment at 45.0° C ? (b) How much work in joules must be done for a heat transfer of 4186 kJ from the cold environment? (c) What is the cost of doing this if the work costs 10.0 cents per 3.60 x 10^{6} J (a kilowatt-hour)? (d) How many kJ of heat transfer occurs into the warm environment? (e) Discuss what type of refrigerator might operate between these temperatures. https://seo-videos.collegephysicsanswers.com/ch15/pe42/ed1ch15pe42.mp4 182 147 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-summer-day-400times-106textrm-j-heat-transfer-parked-car-takes-place On a hot summer day, 4.00 x 10^{6} J of heat transfer into a parked… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe48/thumbs-ed1ch15pe48-00002.png On a hot summer day, 4.00 x 10^{6} J of heat transfer into a parked car takes place, increasing its temperature from 35.0° C to 45.0° C . What is the increase in entropy of the car due to this heat transfer alone? https://seo-videos.collegephysicsanswers.com/ch15/pe48/ed1ch15pe48.mp4 61 104 3.8 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/335-kv-ac-electricity-power-transmission-line-fed-primary-coil-transformer-ratio The 335 kV AC electricity from a power transmission line is fed into… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe52/thumbs-ed1ch23pe52-00002.png The 335 kV AC electricity from a power transmission line is fed into the primary coil of a transformer. The ratio of the number of turns in the secondary to the number in the primary is \dfrac{ N _ s }{ N _ p } = 1000 . (a) What voltage is induced in the secondary? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible? https://seo-videos.collegephysicsanswers.com/ch23/pe52/ed1ch23pe52.mp4 67 4 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/springs-pickup-truck-act-single-spring-force-constant-130times-105textrm-nm-how (a) The springs of a pickup truck act like a single spring with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe04/thumbs-ed1ch16pe04-00002.png (a) The springs of a pickup truck act like a single spring with a force constant of 1.30 x 10^{5} N/m . By how much will the truck be depressed by its maximum load of 1000 kg? (b) If the pickup truck has four identical springs, what is the force constant of each? https://seo-videos.collegephysicsanswers.com/ch16/pe04/ed1ch16pe04.mp4 164 506 4.6 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-light-travels-air-water-which-following-statements-accurate-wavelength When light travels from air into water, which of the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap05/thumbs-ed1ch25ap05-00002.png When light travels from air into water, which of the following statements is accurate? (a) The wavelength decreases, and the speed decreases.(b) The wavelength decreases, and the speed increases.(c) The wavelength increases, and the speed decreases.(d) The wavelength increases, and the speed increases. https://seo-videos.collegephysicsanswers.com/ch25/ap05/ed1ch25ap05.mp4 105 2 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spring-has-length-0200-m-when-0300-kg-mass-hangs-it-and-length-0750-m-when-195 A spring has a length of 0.200 m when a 0.300-kg mass hangs from it,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe06/thumbs-ed1ch16pe06-00002.png A spring has a length of 0.200 m when a 0.300-kg mass hangs from it, and a length of 0.750 m when a 1.95-kg mass hangs from it. (a) What is the force constant of the spring? (b) What is the unloaded length of the spring? https://seo-videos.collegephysicsanswers.com/ch16/pe06/ed1ch16pe06.mp4 327 605 5 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/it-weigh-time-local-under-85-kg-rugby-team-bathroom-scale-used-assess It is weigh-in time for the local under-85-kg rugby team. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe02/thumbs-ed1ch16pe02-00002.png It is weigh-in time for the local under-85-kg rugby team. The bathroom scale used to assess eligibility can be described by Hooke’s law and is depressed 0.75 cm by its maximum load of 120 kg. (a) What is the spring’s effective spring constant? (b) A player stands on the scales and depresses it by 0.48 cm. Is he eligible to play on this under-85 kg team? https://seo-videos.collegephysicsanswers.com/ch16/pe02/ed1ch16pe02.mp4 224 572 5 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/device-pictured-figure-1646-entertains-infants-while-keeping-them-wandering The device pictured in Figure 16.46 entertains infants while keeping… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe20/thumbs-ed1ch16pe20-00002.png The device pictured in Figure 16.46 entertains infants while keeping them from wandering. The child bounces in a harness suspended from a door frame by a spring constant. (a) If the spring stretches 0.250 m while supporting an 8.0-kg child, what is its spring constant? (b) What is the time for one complete bounce of this child? (c) What is the child’s maximum velocity if the amplitude of her bounce is 0.200 m? https://seo-videos.collegephysicsanswers.com/ch16/pe20/ed1ch16pe20.mp4 120 410 4.4 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/each-piston-engine-makes-sharp-sound-every-other-revolution-engine-how-fast-race Each piston of an engine makes a sharp sound every other revolution… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe12/thumbs-ed1ch16pe12-00002.png Each piston of an engine makes a sharp sound every other revolution of the engine. (a) How fast is a race car going if its eight-cylinder engine emits a sound of frequency 750 Hz, given that the engine makes 2000 revolutions per kilometer? (b) At how many revolutions per minute is the engine rotating? https://seo-videos.collegephysicsanswers.com/ch16/pe12/ed1ch16pe12.mp4 228 161 5 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/waves-swimming-pool-propagate-0750-ms-you-splash-water-one-end-pool-and-observe Waves on a swimming pool propagate at 0.750 m/s. You splash the water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe48/thumbs-ed1ch16pe48-00002.png Waves on a swimming pool propagate at 0.750 m/s. You splash the water at one end of the pool and observe the wave go to the opposite end, reflect, and return in 30.0 s. How far away is the other end of the pool? https://seo-videos.collegephysicsanswers.com/ch16/pe48/ed1ch16pe48.mp4 48 440 5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-rate-will-pendulum-clock-run-moon-where-acceleration-due-gravity-163textrm At what rate will a pendulum clock run on the Moon, where the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe32/ed1ch16pe32b-thumbnail.jpg At what rate will a pendulum clock run on the Moon, where the acceleration due to gravity is 1.63 m/s ^2, if it keeps time accurately on Earth? That is, find the time (in hours) it takes the clock’s hour hand to make one revolution on the Moon. https://seo-videos.collegephysicsanswers.com/ch16/pe32/ed1ch16pe32b.mp4 235 239 4.5 2024-01-12 yes 2024-01-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-times-minute-does-boat-bob-and-down-ocean-waves-have-wavelength-400-m How many times a minute does a boat bob up and down on ocean waves… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe50/thumbs-ed1ch16pe50-00002.png How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 40.0 m and a propagation speed of 5.00 m/s? https://seo-videos.collegephysicsanswers.com/ch16/pe50/ed1ch16pe50.mp4 46 185 5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/device-called-insolation-meter-used-measure-intensity-sunlight-has-area A device called an insolation meter is used to measure the intensity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe66/thumbs-ed1ch16pe66-00002.png A device called an insolation meter is used to measure the intensity of sunlight has an area of 100 cm ^2 and registers 6.50 W. What is the intensity in W/m ^2? https://seo-videos.collegephysicsanswers.com/ch16/pe66/ed1ch16pe66.mp4 34 100 5 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/low-frequency-speaker-stereo-set-has-surface-area-005textrm-m2-and-produces-1w The low-frequency speaker of a stereo set has a surface area of 0.05… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe64/thumbs-ed1ch16pe64-00002.png The low-frequency speaker of a stereo set has a surface area of 0.05 m ^2 and produces 1W of acoustical power. What is the intensity at the speaker? If the speaker projects sound uniformly in all directions, at what distance from the speaker is the intensity 0.1 W/m ^2? https://seo-videos.collegephysicsanswers.com/ch16/pe64/ed1ch16pe64.mp4 119 311 3.7 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/three-adjacent-keys-piano-f-f-sharp-and-g-are-struck-simultaneously-producing Three adjacent keys on a piano (F, F-sharp, and G) are struck… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe62/thumbs-ed1ch16pe62-00002.png Three adjacent keys on a piano (F, F-sharp, and G) are struck simultaneously, producing frequencies of 349, 370, and 392 Hz. What beat frequencies are produced by this discordant combination? https://seo-videos.collegephysicsanswers.com/ch16/pe62/ed1ch16pe62.mp4 81 144 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-electromagnetic-wave-described-having-frequency-3-ghz-what-are-its-period-and If an electromagnetic wave is described as having a frequency of 3… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap01/thumbs-ed1ch24ap01-00002.png If an electromagnetic wave is described as having a frequency of 3 GHz, what are its period and wavelength (in a vacuum)? (a) 3.0 x 10^9 s , 10 cm(b) 3.3 x 10^{-10} s , 10 cm(c) 3.3 x 10^{-10} s , 10 m(d) 3.0 x 10^9 s , 10 m https://seo-videos.collegephysicsanswers.com/ch24/ap01/ed1ch24ap01.mp4 52 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/air-temperature-sahara-desert-can-reach-560circtextrmc-about-134circtextrmf-what Air temperature in the Sahara Desert can reach 56.0° C (about 134° F… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe06/thumbs-ed1ch17pe06-00002.png Air temperature in the Sahara Desert can reach 56.0° C (about 134° F ). What is the speed of sound in air at that temperature? https://seo-videos.collegephysicsanswers.com/ch17/pe06/ed1ch17pe06.mp4 43 119 5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-waveform-figure-245d-if-f-2textrm-ghz-and-e-60times-105textrm-nc-what Given the waveform in Figure 24.5(d), if f = 2 GHz and E = 6.0 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap06/thumbs-ed1ch24ap06-00002.png Given the waveform in Figure 24.5(d), if f = 2 GHz and E = 6.0 x 10^{5} N/C what is the correct equation for the magnetic field wave at the antenna? https://seo-videos.collegephysicsanswers.com/ch24/ap06/ed1ch24ap06.mp4 173 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sun-far-away-earth-and-intervening-space-very-close-empty-yet-tilt-earths-axis The sun is far away from the Earth, and the intervening space is very… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap08/thumbs-ed1ch24ap08-00002.png The sun is far away from the Earth, and the intervening space is very close to empty. Yet the tilt of the Earth’s axis of rotation relative to the sun results in seasons. Explain why, given what you have learned in this section. https://seo-videos.collegephysicsanswers.com/ch24/ap08/ed1ch24ap08.mp4 152 2 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/correct-ordering-least-greatest-wavelength-elf-fm-radio-microwaves-infrared-red The correct ordering from least to greatest wavelength is: (a) ELF,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap09/thumbs-ed1ch24ap09-00002.png The correct ordering from least to greatest wavelength is: (a) ELF, FM radio, microwaves, infrared, red, green, ultraviolet, x-ray, gamma ray(b) ELF, FM radio, microwaves, infrared, green, red, ultraviolet, x-ray, gamma ray(c) gamma ray, x-ray, ultraviolet, red, green, infrared, microwaves, FM radio, ELF(d) gamma ray, x-ray, ultraviolet, green, red, infrared, microwaves, FM radio, ELF https://seo-videos.collegephysicsanswers.com/ch24/ap09/ed1ch24ap09.mp4 97 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sonar-echo-returns-submarine-120-s-after-being-emitted-what-distance-object A sonar echo returns to a submarine 1.20 s after being emitted. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe08/thumbs-ed1ch17pe08-00002.png A sonar echo returns to a submarine 1.20 s after being emitted. What is the distance to the object creating the echo? (Assume that the submarine is in the ocean, not in fresh water.) https://seo-videos.collegephysicsanswers.com/ch17/pe08/ed1ch17pe08.mp4 81 347 5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/physicist-fireworks-display-times-lag-between-seeing-explosion-and-hearing-its A physicist at a fireworks display times the lag between seeing an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe10/thumbs-ed1ch17pe10-00002.png A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound, and finds it to be 0.400 s. (a) How far away is the explosion if air temperature is 24.0° C and if you neglect the time taken for light to reach the physicist? (b) Calculate the distance to the explosion taking the speed of light into account. Note that this distance is negligibly greater. https://seo-videos.collegephysicsanswers.com/ch17/pe10/ed1ch17pe10.mp4 312 157 3.5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sound-wave-traveling-20circtextrmc-air-has-pressure-amplitude-05-pa-what A sound wave traveling in 20° C air has a pressure amplitude of 0.5… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe14/ed1ch17pe14b-thumbnail.jpg A sound wave traveling in 20° C air has a pressure amplitude of 0.5 Pa. What is the intensity of the wave? https://seo-videos.collegephysicsanswers.com/ch17/pe14/ed1ch17pe14b.mp4 100 371 3 2024-01-11 yes 2024-01-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-intensity-watts-meter-squared-850-db-sound What is the intensity in watts per meter squared of 85.0-dB sound? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe12/thumbs-ed1ch17pe12-00002.png What is the intensity in watts per meter squared of 85.0-dB sound? https://seo-videos.collegephysicsanswers.com/ch17/pe12/ed1ch17pe12.mp4 109 392 5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/8-hour-exposure-sound-intensity-level-900-db-may-cause-hearing-damage-what An 8-hour exposure to a sound intensity level of 90.0 dB may cause… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe26/thumbs-ed1ch17pe26-00002.png An 8-hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in joules falls on a 0.800-cm-diameter eardrum so exposed? https://seo-videos.collegephysicsanswers.com/ch17/pe26/ed1ch17pe26.mp4 223 334 4.4 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-more-intense-sound-has-level-170-db-higher-another-b-if-one-sound-has (a) How much more intense is a sound that has a level 17.0 dB higher… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe20/thumbs-ed1ch17pe20-00002.png (a) How much more intense is a sound that has a level 17.0 dB higher than another? (b) If one sound has a level 23.0 dB less than another, what is the ratio of their intensities? https://seo-videos.collegephysicsanswers.com/ch17/pe20/ed1ch17pe20.mp4 213 111 4.5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/showy-custom-built-car-has-two-brass-horns-are-supposed-produce-same-frequency A “showy” custom-built car has two brass horns that are supposed to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe38/thumbs-ed1ch17pe38-00002.png A “showy” custom-built car has two brass horns that are supposed to produce the same frequency but actually emit 263.8 and 264.5 Hz. What beat frequency is produced? https://seo-videos.collegephysicsanswers.com/ch17/pe38/ed1ch17pe38.mp4 33 60 5 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fundamental-frequency-0672-m-long-tube-open-both-ends-day-when-speed-sound (a) What is the fundamental frequency of a 0.672-m-long tube, open at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe42/thumbs-ed1ch17pe42-00002.png (a) What is the fundamental frequency of a 0.672-m-long tube, open at both ends, on a day when the speed of sound is 344 m/s? (b) What is the frequency of its second harmonic? https://seo-videos.collegephysicsanswers.com/ch17/pe42/ed1ch17pe42.mp4 64 271 3 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-sound-intensity-levels-must-sounds-frequencies-60-3000-and-8000-hz-have What sound intensity levels must sounds of frequencies 60, 3000, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe62/thumbs-ed1ch17pe62-00002.png What sound intensity levels must sounds of frequencies 60, 3000, and 8000 Hz have in order to have the same loudness as a 40-dB sound of frequency 1000 Hz (that is, to have a loudness of 40 phons)? https://seo-videos.collegephysicsanswers.com/ch17/pe62/ed1ch17pe62.mp4 242 187 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-loudnesses-phons-sounds-having-frequencies-200-1000-5000-and-10000-hz (a) What are the loudnesses in phons of sounds having frequencies of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe64/thumbs-ed1ch17pe64-00002.png (a) What are the loudnesses in phons of sounds having frequencies of 200, 1000, 5000, and 10,000 Hz, if they are all at the same 60.0-dB sound intensity level? (b) If they are all at 110 dB? (c) If they are all at 20.0 dB? https://seo-videos.collegephysicsanswers.com/ch17/pe64/ed1ch17pe64.mp4 306 9 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/clinical-use-ultrasound-transducers-are-always-coupled-skin-thin-layer-gel-or In the clinical use of ultrasound, transducers are always coupled to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe76/thumbs-ed1ch17pe76-00002.png In the clinical use of ultrasound, transducers are always coupled to the skin by a thin layer of gel or oil, replacing the air that would otherwise exist between the transducer and the skin. (a) Using the values of acoustic impedance given in Table 17.5 calculate the intensity reflection coefficient between transducer material and air. (b) Calculate the intensity reflection coefficient between transducer material and gel (assuming for this problem that its acoustic impedance is identical to that of water). (c) Based on the results of your calculations, explain why the gel is used. https://seo-videos.collegephysicsanswers.com/ch17/pe76/ed1ch17pe76.mp4 212 190 3.7 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-180times-1020-electrons-move-through-pocket-calculator-during-full-days If 1.80 x 10^{20} electrons move through a pocket calculator during a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe02/thumbs-ed1ch18pe02-00002.png If 1.80 x 10^{20} electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it? https://seo-videos.collegephysicsanswers.com/ch18/pe02/ed1ch18pe02.mp4 26 321 3.8 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/amoeba-has-100times-1016-protons-and-net-charge-0300-pc-how-many-fewer-electrons An amoeba has 1.00 x 10^{16} protons and a net charge of 0.300 pC.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe06/thumbs-ed1ch18pe06-00002.png An amoeba has 1.00 x 10^{16} protons and a net charge of 0.300 pC. (a) How many fewer electrons are there than protons? (b) If you paired them up, what fraction of the protons would have no electrons? https://seo-videos.collegephysicsanswers.com/ch18/pe06/ed1ch18pe06.mp4 102 276 4.3 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-wavelength-500-nm-incident-narrow-slit-width-150-nm-which-model-light-most Light of wavelength 500 nm is incident on a narrow slit of width 150… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap02/thumbs-ed1ch25ap02-00002.png Light of wavelength 500 nm is incident on a narrow slit of width 150 nm. Which model of light most accurately predicts the behavior of the light after it passes through the slit? Explain your answer. https://seo-videos.collegephysicsanswers.com/ch25/ap02/ed1ch25ap02.mp4 100 4 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-light-ray-travels-air-glass-which-following-statements-accurate-after-light When a light ray travels from air into glass, which of the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap06/thumbs-ed1ch25ap06-00002.png When a light ray travels from air into glass, which of the following statements is accurate after the light enters the glass? (a) The ray bends away from the normal, and the speed decreases.(b) The ray bends away from the normal, and the speed increases.(c) The ray bends toward the normal, and the speed increases.(d) The ray bends toward the normal, and the speed decreases. https://seo-videos.collegephysicsanswers.com/ch25/ap06/ed1ch25ap06.mp4 74 6 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-charge-located-x-800textrm-cm-figure-1851a-given-q-100textrm What is the force on the charge located at x = 8.00 cm in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe41/thumbs-ed1ch18pe14-00002.png What is the force on the charge located at x = 8.00 cm in Figure 18.51(a) given that q = 1.00 \mu C ? https://seo-videos.collegephysicsanswers.com/ch18/pe41/ed1ch18pe14.mp4 162 643 4.3 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-travels-through-water-and-crosses-boundary-non-normal-angle-different Light travels through water and crosses a boundary at a non-normal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap10/thumbs-ed1ch25ap10-00002.png Light travels through water and crosses a boundary at a non-normal angle into a different fluid with an unknown index of refraction. Which of the following is true about the path of the light after crossing the boundary? (a) If the index of refraction of the fluid is higher than that of water, the light will speed up and turn toward the normal.(b) If the index of refraction of the fluid is higher than that of water, the light will slow down and turn away from the normal.(c) If the index of refraction of the fluid is lower than that of water, the light will speed up and turn away from the normal.(d) If the index of refraction of the fluid is lower than that of water, the light will slow down and turn toward the normal. https://seo-videos.collegephysicsanswers.com/ch25/ap10/ed1ch25ap10.mp4 74 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/detective-holds-magnifying-glass-50-cm-above-object-he-studying-creating-upright A detective holds a magnifying glass 5.0 cm above an object he is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap14/thumbs-ed1ch25ap14-00002.png A detective holds a magnifying glass 5.0 cm above an object he is studying, creating an upright image twice as large as the object. What is the focal length of the lens used for the magnifying glass? https://seo-videos.collegephysicsanswers.com/ch25/ap14/ed1ch25ap14.mp4 86 6 2021-04-06 yes 2021-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-between-two-conducting-plates-shown-figure-1849-given-top Sketch the electric field between the two conducting plates shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe39/thumbs-ed1ch18pe12-00002.png Sketch the electric field between the two conducting plates shown in Figure 18.49, given the top plate is positive and an equal amount of negative charge is on the bottom plate. Be certain to indicate the distribution of charge on the plates. https://seo-videos.collegephysicsanswers.com/ch18/pe39/ed1ch18pe12.mp4 291 332 4.2 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-notices-small-printed-sentence-bottom-drivers-side-mirror-her-car-it A student notices a small printed sentence at the bottom of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap18/thumbs-ed1ch25ap18-00002.png A student notices a small printed sentence at the bottom of the driver’s side mirror on her car. It reads, “Objects in the mirror are closer than they appear.” Which type of mirror is this (convex, concave, or flat)? How could you confirm the shape of the mirror experimentally? https://seo-videos.collegephysicsanswers.com/ch25/ap18/ed1ch25ap18.mp4 39 4 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-electric-field-x-500textrm-cm-figure-1851a-given-q-100textrm-mutextrmc-b (a) Find the electric field at x = 5.00 cm in Figure 18.51(a), given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe43/thumbs-ed1ch18pe16-00002.png (a) Find the electric field at x = 5.00 cm in Figure 18.51(a), given that q = 1.00 \mu C . (b) At what position between 3.00 and 8.00 cm is the total electric field the same as that for -2q alone? (c) Can the electric field be zero anywhere between 0.00 and 8.00 cm? (d) At very large positive or negative values of x, the electric field approaches zero in both (a) and (b). In which does it most rapidly approach zero and why? (e) At what position to the right of 11.0 cm is the total electric field zero, other than at infinity? (Hint: A graphing calculator can yield considerable insight in this problem.) https://seo-videos.collegephysicsanswers.com/ch18/pe43/ed1ch18pe16.mp4 1045 221 4.8 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-symmetry-arrangement-determine-direction-force-q-figure-below-given-qa-qb Using the symmetry of the arrangement, determine the direction of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe45/thumbs-ed1ch18pe18-00002.png Using the symmetry of the arrangement, determine the direction of the force on q in the figure below, given that q_a = q_b = +7.50 \mu C and q_c=q_d = -7.50 \mu C . (b) Calculate the magnitude of the force on the charge q , given that the square is 10.0 cm on a side and q = 2.00 \mu C . https://seo-videos.collegephysicsanswers.com/ch18/pe45/ed1ch18pe18.mp4 324 465 2.9 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-point-charges-exert-500-n-force-each-other-what-will-force-become-if Two point charges exert a 5.00 N force on each other. What will the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe12/thumbs-ed1ch18pe26-00002.png Two point charges exert a 5.00 N force on each other. What will the force become if the distance between them is increased by a factor of three? https://seo-videos.collegephysicsanswers.com/ch18/pe12/ed1ch18pe26.mp4 57 516 4.1 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/test-charge-2textrm-mutextrmc-placed-halfway-between-charge-6textrm-mutextrmc A test charge of +2 \mu C is placed halfway between a charge of +6… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe16/thumbs-ed1ch18pe30-00002.png A test charge of +2 \mu C is placed halfway between a charge of +6 \mu C and another of +4 \mu C separated by 10 cm. (a) What is the magnitude of the force on the test charge? (b) What is the direction of this force (away from or toward the +6 \mu C charge)? https://seo-videos.collegephysicsanswers.com/ch18/pe16/ed1ch18pe30.mp4 188 1018 3.8 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-electric-field-location-qa-figure-1853-given-qb-1000textrm-mutextrmc-and-qc (a) Find the electric field at the location of q_a in Figure 18.53,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe49/thumbs-ed1ch18pe22-00002.png (a) Find the electric field at the location of q_a in Figure 18.53, given that q_b = +10.00 \mu C and q_c = -5.00 \mu C . (b) What is the force on q_a, given that q_a = +1.50 nC ? https://seo-videos.collegephysicsanswers.com/ch18/pe49/ed1ch18pe22.mp4 541 336 2.9 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/common-transparent-tape-becomes-charged-when-pulled-dispenser-if-one-piece (a) Common transparent tape becomes charged when pulled from a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe20/thumbs-ed1ch18pe34-00002.png (a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece's weight. Assuming equal point charges (only an approximation), calculate the magnitude of the charge if electrostatic force is great enough to support the weight of a 10.0 mg piece of tape held 1.00 cm above another. (b) Discuss whether the magnitude of this charge is consistent with what is typical of static electricity. https://seo-videos.collegephysicsanswers.com/ch18/pe20/ed1ch18pe34.mp4 146 396 3.5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnitude-and-direction-force-exerted-350textrm-mutextrmc-charge-250-nc What is the magnitude and direction of the force exerted on a 3.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe28/thumbs-ed1ch18pe42-00002.png What is the magnitude and direction of the force exerted on a 3.50 \mu C charge by a 250 N/C electric field that points due east? https://seo-videos.collegephysicsanswers.com/ch18/pe28/ed1ch18pe42.mp4 44 291 5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnitude-point-charge-creates-10000-nc-electric-field-distance-0250-m-b (a) What magnitude point charge creates a 10,000 N/C electric field… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe30/thumbs-ed1ch18pe44-00002.png (a) What magnitude point charge creates a 10,000 N/C electric field at a distance of 0.250 m? (b) How large is the field at 10.0 m? https://seo-videos.collegephysicsanswers.com/ch18/pe30/ed1ch18pe44.mp4 59 456 4 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-direction-and-magnitude-electric-field-exerts-480times-10-17textrm-n (a) Find the direction and magnitude of an electric field that exerts… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe32/thumbs-ed1ch18pe46-00002.png (a) Find the direction and magnitude of an electric field that exerts a 4.80 x 10^{-17} N westward force on an electron. (b) What magnitude and direction force does this field exert on a proton? https://seo-videos.collegephysicsanswers.com/ch18/pe32/ed1ch18pe46.mp4 85 441 4 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-and-magnitude-electric-field-supports-weight-free-electron-near (a) What is the direction and magnitude of an electric field that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe52/thumbs-ed1ch18pe52-00002.png (a) What is the direction and magnitude of an electric field that supports the weight of a free electron near the surface of Earth? (b) Discuss what the small value for this field implies regarding the relative strength of the gravitational and electrostatic forces. https://seo-videos.collegephysicsanswers.com/ch18/pe52/ed1ch18pe52.mp4 117 80 5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-point-charges-totaling-800textrm-mutextrmc-exert-repulsive-force-0150-n-one (a) Two point charges totaling 8.00 \mu C exert a repulsive force of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe24/thumbs-ed1ch18pe38-00002.png (a) Two point charges totaling 8.00 \mu C exert a repulsive force of 0.150 N on one another when separated by 0.500 m. What is the charge on each? (b) What is the charge on each if the force is attractive? https://seo-videos.collegephysicsanswers.com/ch18/pe24/ed1ch18pe38.mp4 368 333 4 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-g-charged-insulating-ball-hangs-300-cm-long-string-uniform-horizontal A 5.00 g charged insulating ball hangs on a 30.0 cm long string in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe60/thumbs-ed1ch18pe60-00002.png A 5.00 g charged insulating ball hangs on a 30.0 cm long string in a uniform horizontal electric field as shown in Figure 18.56. Given the charge on the ball is 1.00 \mu C , find the strength of the field. https://seo-videos.collegephysicsanswers.com/ch18/pe60/ed1ch18pe60.mp4 202 327 5 2020-06-23 yes 2020-06-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/evacuated-tube-uses-accelerating-voltage-40-kv-accelerate-electrons-hit-copper An evacuated tube uses an accelerating voltage of 40 kV to accelerate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe02/thumbs-ed1ch19pe02-00002.png An evacuated tube uses an accelerating voltage of 40 kV to accelerate electrons to hit a copper plate and produce x rays. Non-relativistically, what would be the maximum speed of these electrons? https://seo-videos.collegephysicsanswers.com/ch19/pe02/ed1ch19pe02.mp4 107 700 4.5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-equipotential-lines-near-point-charge-q-indicate-direction-increasing (a) Sketch the equipotential lines near a point charge +q. Indicate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe36/thumbs-ed1ch19pe36-00002.png (a) Sketch the equipotential lines near a point charge +q. Indicate the direction of increasing potential. (b) Do the same for a point charge -3q. https://seo-videos.collegephysicsanswers.com/ch19/pe36/ed1ch19pe36.mp4 232 425 5 2020-06-26 yes 2020-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-capacitance-parallel-plate-capacitor-having-plates-area-150textrm-m2-are (a) What is the capacitance of a parallel plate capacitor having… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe54/thumbs-ed1ch19pe54-00002.png (a) What is the capacitance of a parallel plate capacitor having plates of area 1.50 m ^2 that are separated by 0.0200 mm of neoprene rubber? (b) What charge does it hold when 9.00 V is applied to it? https://seo-videos.collegephysicsanswers.com/ch19/pe54/ed1ch19pe54.mp4 75 380 4.3 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-capacitance-combination-capacitors-shown-figure-1933 Find the total capacitance of the combination of capacitors shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe60/thumbs-ed1ch19pe60-00002.png Find the total capacitance of the combination of capacitors shown in Figure 19.33. https://seo-videos.collegephysicsanswers.com/ch19/pe60/ed1ch19pe60.mp4 190 600 4.3 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-power-dissipated-each-these-extension-cords-extension-cord-having Find the power dissipated in each of these extension cords: (a) an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe44/thumbs-ed1ch20pe44-00002.png Find the power dissipated in each of these extension cords: (a) an extension cord having a 0.0600 \Omega resistance and through which 5.00 A is flowing; (b) a cheaper cord utilizing thinner wire and with a resistance of 0.300 \Omega. https://seo-videos.collegephysicsanswers.com/ch20/pe44/ed1ch20pe44.mp4 54 94 3.7 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tree-3-m-tall-viewed-distance-25-m-if-cornea-retina-distance-ideal-eye-2-cm-how A tree that is 3 m tall is viewed from a distance of 25 m. If the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap01/thumbs-ed1ch26ap01-00002.png A tree that is 3 m tall is viewed from a distance of 25 m. If the cornea-to-retina distance of an ideal eye is 2 cm, how tall is the image of the tree on the observer’s retina? (a) 0.24 cm(b) 0.5 cm(c) 0.5 m(d) 0.08 cm https://seo-videos.collegephysicsanswers.com/ch26/ap01/ed1ch26ap01.mp4 56 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/often-people-lens-retina-distances-smaller-2-cm-purchase-glasses-place-front Often people with lens-to-retina distances smaller than 2 cm purchase… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap02/thumbs-ed1ch26ap02-00002.png Often people with lens-to-retina distances smaller than 2 cm purchase glasses to place in front of their eyes. (a) Explain why people with lens-to-retina distances smaller than 2 cm need glasses.(b) Explain whether the glasses should be composed of converging or diverging lenses.(c) Draw a ray diagram demonstrating the ability to see with and without the glasses. https://seo-videos.collegephysicsanswers.com/ch26/ap02/ed1ch26ap02.mp4 67 2 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-types-light-have-wavelength-greater-visible-light-gamma-rays Which of the following types of light have a wavelength greater than… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap03/thumbs-ed1ch26ap03-00002.png Which of the following types of light have a wavelength greater than that of visible light? (a) gamma rays(b) infrared(c) radio(d) ultraviolet (a) I, II, and III(b) I and IV only(c) II and III only(d) III only https://seo-videos.collegephysicsanswers.com/ch26/ap03/ed1ch26ap03.mp4 13 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-diagram-shown-below-answer-following-questions-draw-two-rays-leaving-arrow Use the diagram shown below to answer the following questions. Draw… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap08/thumbs-ed1ch26ap08-00002.png Use the diagram shown below to answer the following questions. Draw two rays leaving the arrow shown to the left of both lenses. Use ray tracing to draw the images created by the objective and eyepiece lenses. Label the images as i_o and i_e. https://seo-videos.collegephysicsanswers.com/ch26/ap08/ed1ch26ap08.mp4 50 2 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spherical-mirror-used-construct-telescope-using-picture-below-figure-2632-draw A spherical mirror is used to construct a telescope. (a) Using the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap10/thumbs-ed1ch26ap10-00002.png A spherical mirror is used to construct a telescope. (a) Using the picture below, Figure 26.32, draw two rays incident on the object mirror and continue their path through the eye lens.(b) The plane mirror is replaced with a concave lens as in Figure 26.33. Using the picture below, draw the path of two incident rays.(c) Using the concave lens setup, describe the final image created by the concave lens. https://seo-videos.collegephysicsanswers.com/ch26/ap10/ed1ch26ap10.mp4 119 2 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-would-be-maximum-cost-cfl-such-total-cost-investment-plus-operating-would What would be the maximum cost of a CFL such that the total cost… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe52/thumbs-ed1ch20pe52-00002.png What would be the maximum cost of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60-W bulbs? Assume the cost of the incandescent bulb is 25 cents and that electricity costs 10 cents/kWh. Calculate the cost for 1000 hours, as in the cost effectiveness of CFL example. https://seo-videos.collegephysicsanswers.com/ch20/pe52/ed1ch20pe52.mp4 137 216 5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-hot-resistance-25-w-light-bulb-runs-120-v-ac-b-if-bulbs-operating (a) What is the hot resistance of a 25-W light bulb that runs on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe72/thumbs-ed1ch20pe72-00002.png (a) What is the hot resistance of a 25-W light bulb that runs on 120-V AC? (b) If the bulb’s operating temperature is 2700° C , what is its resistance at 2600° C ? https://seo-videos.collegephysicsanswers.com/ch20/pe72/ed1ch20pe72.mp4 134 84 5 2020-08-19 yes 2020-08-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-concave-lenses-focal-lengths-500-mm-and-20-mm-are-used-construction Two concave lenses, of focal lengths 500 mm and 20 mm, are used in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap11/thumbs-ed1ch26ap11-00002.png Two concave lenses, of focal lengths 500 mm and 20 mm, are used in the construction of a telescope. Given any potential arrangement, what is the largest possible magnification the telescope may have? (a) 100x(b) 10,000x(c) 25x(d) 4x https://seo-videos.collegephysicsanswers.com/ch26/ap11/ed1ch26ap11.mp4 19 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-surgery-current-small-200textrm-mutextrma-applied-directly-heart-may (a) During surgery, a current as small as 20.0 \mu A applied… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe90/thumbs-ed1ch20pe90-00002.png (a) During surgery, a current as small as 20.0 \mu A applied directly to the heart may cause ventricular fibrillation. If the resistance of the exposed heart is 300 \Omega, what is the smallest voltage that poses this danger? (b) Does your answer imply that special electrical safety precautions are needed? https://seo-videos.collegephysicsanswers.com/ch20/pe90/ed1ch20pe90.mp4 58 79 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/natural-potassium-contains-40textrmk-which-has-half-life-1277times-109textrm-y (a) Natural potassium contains {}^{40} K , which has a half-life of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe50/thumbs-ed1ch31pe50-00002.png (a) Natural potassium contains {}^{40} K , which has a half-life of 1.277 x 10^{9} y . What mass of {}^{40} K in a person would have a decay rate of 4140 Bq? (b) What is the fraction of {}^{40} K in natural potassium, given that the person has 140 g in his body? (These numbers are typical for a 70-kg adult.) https://seo-videos.collegephysicsanswers.com/ch31/pe50/ed1ch31pe50.mp4 184 51 5 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1800-w-toaster-1400-w-electric-frying-pan-and-75-w-lamp-are-plugged-same-outlet An 1800-W toaster, a 1400-W electric frying pan, and a 75-W lamp are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe04/thumbs-ed1ch21pe04-00002.png An 1800-W toaster, a 1400-W electric frying pan, and a 75-W lamp are plugged into the same outlet in a 15-A, 120-V circuit. (The three devices are in parallel when plugged into the same socket.). (a) What current is drawn by each device? (b) Will this combination blow the 15-A fuse? https://seo-videos.collegephysicsanswers.com/ch21/pe04/ed1ch21pe04.mp4 114 539 4.8 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-480-v-battery-and-240textrm-omega-and-960textrm-omega-resistors-find (a) Given a 48.0-V battery and 24.0 \Omega and 96.0 \Omega resistors,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe06/thumbs-ed1ch21pe06-00002.png (a) Given a 48.0-V battery and 24.0 \Omega and 96.0 \Omega resistors, find the current and power for each when connected in series. (b) Repeat when the resistances are in parallel. https://seo-videos.collegephysicsanswers.com/ch21/pe06/ed1ch21pe06.mp4 204 690 4 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-internal-resistance-automobile-battery-has-emf-120-v-and-terminal-voltage What is the internal resistance of an automobile battery that has an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe18/thumbs-ed1ch21pe18-00002.png What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal voltage of 15.0 V while a current of 8.00 A is charging it? https://seo-videos.collegephysicsanswers.com/ch21/pe18/ed1ch21pe18.mp4 151 352 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-battery-12-v-emf-and-internal-resistance-0050textrm-omega-being-charged A car battery with a 12-V emf and an internal resistance of 0.050… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe20/thumbs-ed1ch21pe20-00002.png A car battery with a 12-V emf and an internal resistance of 0.050 \Omega is being charged with a current of 60 A. Note that in this process the battery is being charged. (a) What is the potential difference across its terminals? (b) At what rate is thermal energy being dissipated in the battery? (c) At what rate is electric energy being converted to chemical energy? (d) What are the answers to (a) and (b) when the battery is used to supply 60 A to the starter motor? https://seo-videos.collegephysicsanswers.com/ch21/pe20/ed1ch21pe20.mp4 316 132 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-currents-flowing-circuit-figure-2152-explicitly-show-how-you-follow-steps Find the currents flowing in the circuit in Figure 21.52. Explicitly… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe38/thumbs-ed1ch21pe38-00002.png Find the currents flowing in the circuit in Figure 21.52. Explicitly show how you follow the steps in the Problem- Solving Strategies for Series and Parallel Resistors. https://seo-videos.collegephysicsanswers.com/ch21/pe38/ed1ch21pe38.mp4 854 479 4.3 2020-10-15 yes 2020-10-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-measure-terminal-voltage-1585-v-alkaline-cell-having-internal Suppose you measure the terminal voltage of a 1.585-V alkaline cell… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe50/thumbs-ed1ch21pe50-00002.png Suppose you measure the terminal voltage of a 1.585-V alkaline cell having an internal resistance of 0.100 placeholder \Omega by placing a 1.00 k \Omega voltmeter across its terminals. (See Figure 21.54.) (a) What current flows? (b) Find the terminal voltage. (c) To see how close the measured terminal voltage is to the emf, calculate their ratio. https://seo-videos.collegephysicsanswers.com/ch21/pe50/ed1ch21pe50.mp4 137 126 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-true-about-huygenss-principle-secondary-wavelets-it Which of the following statements is true about Huygens’s principle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap01/thumbs-ed1ch27ap01-00002.png Which of the following statements is true about Huygens’s principle of secondary wavelets? (a) It can be used to explain the particle behavior of waves.(b) It states that each point on a wavefront can be considered a new wave source.(c) It can be used to find the velocity of a wave.(d) All of the above. https://seo-videos.collegephysicsanswers.com/ch27/ap01/ed1ch27ap01.mp4 22 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-why-amount-bending-occurs-during-diffraction-depends-width-opening Explain why the amount of bending that occurs during diffraction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap02/thumbs-ed1ch27ap02-00002.png Explain why the amount of bending that occurs during diffraction depends on the width of the opening through which light passes. https://seo-videos.collegephysicsanswers.com/ch27/ap02/ed1ch27ap02.mp4 168 8 2021-04-21 yes 2021-04-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heart-pacemaker-fires-72-times-minute-each-time-250-nf-capacitor-charged-battery A heart pacemaker fires 72 times a minute, each time a 25.0-nF… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe64/thumbs-ed1ch21pe64-00002.png A heart pacemaker fires 72 times a minute, each time a 25.0-nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage. What is the value of the resistance? https://seo-videos.collegephysicsanswers.com/ch21/pe64/ed1ch21pe64.mp4 168 423 4.3 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500textrm-omega-resistor-uncharged-150textrm-mutextrmf-capacitor-and-616-v-emf A 500 \Omega resistor, an uncharged 1.50 \mu F capacitor, and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe68/thumbs-ed1ch21pe68-00002.png A 500 \Omega resistor, an uncharged 1.50 \mu F capacitor, and a 6.16-V emf are connected in series. (a) What is the initial current? (b) What is the RC time constant? (c) What is the current after one time constant? (d) What is the voltage on the capacitor after one time constant? https://seo-videos.collegephysicsanswers.com/ch21/pe68/ed1ch21pe68.mp4 195 247 4.5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/aircraft-sometimes-acquire-small-static-charges-suppose-supersonic-jet-has (a) Aircraft sometimes acquire small static charges. Suppose a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe08/thumbs-ed1ch22pe08-00002.png (a) Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.500 \mu C charge and flies due west at a speed of 660 m/s over the Earth’s magnetic south pole (near Earth's geographic north pole), where the 8.00 x 10^{-5} T magnetic field points straight down. What are the direction and the magnitude of the magnetic force on the plane? (b) Discuss whether the value obtained in part (a) implies this is a significant or negligible effect. https://seo-videos.collegephysicsanswers.com/ch22/pe08/ed1ch22pe08.mp4 129 417 4.3 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-moving-400times-103textrm-ms-125-t-magnetic-field-experiences-magnetic An electron moving at 4.00 x 10^{3} m/s in a 1.25-T magnetic field… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe10/thumbs-ed1ch22pe10-00002.png An electron moving at 4.00 x 10^{3} m/s in a 1.25-T magnetic field experiences a magnetic force of 1.40 x 10^{-16} N . What angle does the velocity of the electron make with the magnetic field? There are two answers. https://seo-videos.collegephysicsanswers.com/ch22/pe10/ed1ch22pe10.mp4 139 384 4.7 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-two-sources-passes-through-circular-aperture-form-images-screen-state Light from two sources passes through a circular aperture to form… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap14/thumbs-ed1ch27ap14-00002.png Light from two sources passes through a circular aperture to form images on a screen. State the Rayleigh criterion for the images to be just resolvable and draw a figure to visually explain it. https://d1igkeoc1zsqhw.cloudfront.net/ch27/ap14/ed1ch27ap14.mp4 164 4 2021-04-22 no 2021-04-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-magnetic-force-negative-charge-moves-shown-each-six-cases-shown What is the direction of the magnetic force on a negative charge that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe02/thumbs-ed1ch22pe02-00002.png What is the direction of the magnetic force on a negative charge that moves as shown in each of the six cases shown in Figure 22.50? https://seo-videos.collegephysicsanswers.com/ch22/pe02/ed1ch22pe02.mp4 236 254 5 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-happens-when-velocities-comparable-speed-light-are-involved-observation What happens when velocities comparable to the speed of light are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/ap02/thumbs-ed1ch28ap02-00002.png What happens when velocities comparable to the speed of light are involved in an observation? (a) Newton’s second law of motion, F = ma , governs the motion of the object.(b) Newton’s second law of motion, F = ma , no longer governs the dynamics of the object.(c) Such velocities cannot be determined mathematically.(d) None of the above https://seo-videos.collegephysicsanswers.com/ch28/ap02/ed1ch28ap02.mp4 35 2 2021-04-26 yes 2021-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/log-fireplace-burns-nearly-hour-which-point-it-consists-mostly-small-hot-embers A log in a fireplace burns for nearly an hour, at which point it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap02/thumbs-ed1ch29ap02-00002.png A log in a fireplace burns for nearly an hour, at which point it consists mostly of small, hot embers. These embers glow a bright orange and whitish-yellow color. Describe the characteristics of the energy of this system, both in terms of energy transfer and the quantum behavior of blackbodies. https://seo-videos.collegephysicsanswers.com/ch29/ap02/ed1ch29ap02.mp4 164 2 2021-05-05 yes 2021-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-his-experiments-confirmed-existence-electromagnetic-waves-heinrich-hertz During his experiments that confirmed the existence of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap04/thumbs-ed1ch29ap04-00002.png During his experiments that confirmed the existence of electromagnetic waves, Heinrich Hertz used a spark across a gap between two electrodes to provide the rapidly changing electric current that produced electromagnetic waves. He noticed, however, that production of the spark required a lower voltage in a well-lighted laboratory than when the room was dark. Describe how this curious event can be explained in terms of the quantum interpretation of the photoelectric effect. https://seo-videos.collegephysicsanswers.com/ch29/ap04/ed1ch29ap04.mp4 82 2 2021-05-05 yes 2021-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-proton-167times-10-27textrm-kg-if-proton-has-same-momentum-photon The mass of a proton is 1.67 x 10^{-27} kg . If a proton has the same… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap07/thumbs-ed1ch29ap07-00002.png The mass of a proton is 1.67 x 10^{-27} kg . If a proton has the same momentum as a photon with a wavelength of 325 nm, what is its speed? (a) 2.73 x 10^{-3} m/s (b) 0.819 m/s (c) 1.22 m/s (d) 2.71 x 10^{4} m/s https://seo-videos.collegephysicsanswers.com/ch29/ap07/ed1ch29ap07.mp4 44 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/strip-metal-foil-mass-500times-10-7textrm-kg-suspended-vacuum-and-exposed-pulse A strip of metal foil with a mass of 5.00 x 10^{-7} kg suspended in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap08/thumbs-ed1ch29ap08-00002.png A strip of metal foil with a mass of 5.00 x 10^{-7} kg suspended in a vacuum and exposed to a pulse of light. The velocity of the foil changes from zero to 1.00 x 10^{-3} m/s in the same direction as the initial light pulse, and the light pulse is entirely reflected from the surface of the foil. Given that the wavelength of the light is 450 nm, and assuming that this wavelength is the same before and after the collision, how many photons in the pulse collide with the foil? https://seo-videos.collegephysicsanswers.com/ch29/ap08/ed1ch29ap08.mp4 218 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-two-experiments-involving-metal-sphere-radius-200textrm-mutextrmm Consider two experiments involving a metal sphere with a radius of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap10/thumbs-ed1ch29ap10-00002.png Consider two experiments involving a metal sphere with a radius of 2.00 \mu m that is suspended in a vacuum. In one experiment, a pulse of N photons reflects from the surface of the sphere, causing the sphere to acquire momentum. In a second experiment, an identical pulse of photons is completely absorbed by the sphere, so that the sphere acquires momentum. Identify each type of collision as either elastic or inelastic, and, assuming that the change in the photon wavelength can be ignored, use linear momentum conservation to derive the expression for the momentum of the sphere in each experiment. https://seo-videos.collegephysicsanswers.com/ch29/ap10/ed1ch29ap10.mp4 238 2 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/while-quantum-model-explains-many-physical-processes-classical-model-cannot-it While the quantum model explains many physical processes that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap12/thumbs-ed1ch29ap12-00002.png While the quantum model explains many physical processes that the classical model cannot, it must be consistent with those processes that the classical model does explain. Energy and momentum conservation are fundamental principles of classical physics. Use the Compton and photoelectric effects to explain how these conservation principles carry over to the quantum model of light. https://seo-videos.collegephysicsanswers.com/ch29/ap12/ed1ch29ap12.mp4 135 2 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/least-massive-particle-known-exist-electron-neutrino-though-scientists-once The least massive particle known to exist is the electron neutrino.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap13/thumbs-ed1ch29ap13-00002.png The least massive particle known to exist is the electron neutrino. Though scientists once believed that it had no mass, like the photon, they have now determined that this particle has an extremely low mass, equivalent to a few electron volts. Assuming a mass of 2.2 eV/c ^2 (or 3.9 x 10^{-36} kg ) and a speed of 4.4 x 10^{6} m/s , which of the following values equals the neutrino’s de Broglie wavelength? (a) 3.8 x 10^{-5} m (b) 4.7 x 10^{-7} m (c) 1.7 x 10^{-10} m (d) 8.9 x 10^{-14} m https://seo-videos.collegephysicsanswers.com/ch29/ap13/ed1ch29ap13.mp4 42 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/davisson-germer-experiment-electrons-speed-65times-106textrm-ms-exhibit-third In a Davisson-Germer experiment, electrons with a speed of 6.5 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap16/thumbs-ed1ch29ap16-00002.png In a Davisson-Germer experiment, electrons with a speed of 6.5 x 10^{6} m/s exhibit third-order (n = 3) constructive interference for a crystal with unknown plane separation, d. Given an angle of incidence of \theta = 45°, compute the value for d. Compare the de Broglie wavelength to electromagnetic radiation with the same wavelength. (Recall that the mass of the electron is 9.11 x 10^{-31} kg .) https://seo-videos.collegephysicsanswers.com/ch29/ap16/ed1ch29ap16.mp4 157 2 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-describes-one-main-features-wave-particle-duality-speed Which of the following describes one of the main features of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap17/thumbs-ed1ch29ap17-00002.png Which of the following describes one of the main features of wave-particle duality? (a) As speed increases, the wave nature of matter becomes more evident.(b) As momentum decreases, the particle nature of matter becomes more evident.(c) As energy increases, the wave nature of matter becomes easier to observe.(d) As mass increases, the wave nature of matter is less easy to observe. https://seo-videos.collegephysicsanswers.com/ch29/ap17/ed1ch29ap17.mp4 140 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/millikans-oil-drop-experiment-he-experimented-various-voltage-differences In Millikan’s oil drop experiment, he experimented with various… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap02/thumbs-ed1ch30ap02-00002.png In Millikan’s oil drop experiment, he experimented with various voltage differences between two plates to determine what voltage was necessary to hold a drop motionless. He deduced that the charge on the oil drop could be found by setting the gravitational force on the drop (pointing downward) equal to the electric force (pointing upward): m_ drop g = qE , where m_ drop is the mass of the oil drop, g is the gravitational acceleration (9.8 m/s ^2 ), q is the net charge of the oil drop, and E is the electric field between the plates. Millikan deduced that the charge on an electron, e, is 1.6 x 10^{-19} C . For a system of oil drops of equal mass (1.0 x 10^{-15} kilograms ), describe what value or values of the electric field would hold the drops motionless. https://seo-videos.collegephysicsanswers.com/ch30/ap02/ed1ch30ap02.mp4 118 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hypothetical-one-electron-atom-its-highest-excited-state-can-only-emit-photons A hypothetical one-electron atom in its highest excited state can… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap03/thumbs-ed1ch30ap03-00002.png A hypothetical one-electron atom in its highest excited state can only emit photons of energy 2E, 3E, and 5E before reaching the ground state. Which of the following represents the complete set of energy levels for this atom? (a) 0, 3E, 5E(b) 0, 2E, 3E(c) 0, 2E, 3E, 5E(d) 0, 5E, 8E, 10E https://seo-videos.collegephysicsanswers.com/ch30/ap03/ed1ch30ap03.mp4 91 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lyman-series-photons-each-have-energy-capable-exciting-electron-hydrogen-atom The Lyman series of photons each have an energy capable of exciting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap04/thumbs-ed1ch30ap04-00002.png The Lyman series of photons each have an energy capable of exciting the electron of a hydrogen atom from the ground state (energy level 1) to energy levels 2, 3, 4, etc. The wavelengths of the first five photons in this series are 121.6 nm, 102.6 nm, 97.3 nm, 95.0 nm, and 93.8 nm. The ground state energy of hydrogen is −13.6 eV. Based on the wavelengths of the Lyman series, calculate the energies of the first five excited states above ground level for a hydrogen atom to the nearest 0.1 eV. https://seo-videos.collegephysicsanswers.com/ch30/ap04/ed1ch30ap04.mp4 236 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-hydrogen-atom-initially-energy-level-2-e2-34textrm-ev-what-frequency An electron in a hydrogen atom is initially in energy level 2 (E_2 =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap06/thumbs-ed1ch30ap06-00002.png An electron in a hydrogen atom is initially in energy level 2 (E_2 = -3.4 eV ). (a) What frequency of photon must be absorbed by the atom in order for the electron to transition to energy level 3 (E_3 = -1.5 eV )? (b) What frequency of photon must be emitted by the atom in order for the electron to transition to energy level 1 (E_1 = -13.6 eV )? https://seo-videos.collegephysicsanswers.com/ch30/ap06/ed1ch30ap06.mp4 111 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/are-following-reactions-possible-each-explain-why-or-why-not-textrmu-textrmra Are the following reactions possible? For each, explain why or why… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap09/thumbs-ed1ch31ap09-00002.png Are the following reactions possible? For each, explain why or why not. (a) U \to Ra + He (b) Ra \to Pb + C (c) C \to N + e^- + \bar{\nu\_e}(d) Mg \to Na + e^+ + \nu\_e https://seo-videos.collegephysicsanswers.com/ch31/ap09/ed1ch31ap09.mp4 235 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/we-have-discovered-electrons-orbit-must-contain-integer-number-de-broglie We have discovered that an electron’s orbit must contain an integer… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap16/thumbs-ed1ch30ap16-00002.png We have discovered that an electron’s orbit must contain an integer number of de Broglie wavelengths. Explain why, under ordinary conditions, this makes it impossible for electrons to spiral in to merge with the positively charged nucleus. https://seo-videos.collegephysicsanswers.com/ch30/ap16/ed1ch30ap16.mp4 186 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/typical-carbon-nucleus-contains-6-neutrons-and-6-protons-6-protons-are-all A typical carbon nucleus contains 6 neutrons and 6 protons. The 6… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap03/thumbs-ed1ch31ap03-00002.png A typical carbon nucleus contains 6 neutrons and 6 protons. The 6 protons are all positively charged and in very close proximity, with separations on the order of 10^{-15} meters, which should result in an enormous repulsive force. What prevents the nucleus from dismantling itself due to the repulsion of the electric force?(a) The attractive nature of the strong nuclear force overpowers the electric force.(b) The weak nuclear force barely offsets the electric force.(c) Magnetic forces generated by the orbiting electrons create a stable minimum in which the nuclear charged particles reside.(d) The attractive electric force of the surrounding electrons is equal in all directions and cancels out, leaving no net electric force. https://seo-videos.collegephysicsanswers.com/ch31/ap03/ed1ch31ap03.mp4 20 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radioactive-sample-has-n-atoms-initially-after-3-half-lives-have-elapsed-how A radioactive sample has N atoms initially. After 3 half- lives have… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/ap10/thumbs-ed1ch31ap10-00002.png A radioactive sample has N atoms initially. After 3 half- lives have elapsed, how many atoms remain? (a) N/3(b) N/6(c) N/8(d) N/27 https://seo-videos.collegephysicsanswers.com/ch31/ap10/ed1ch31ap10.mp4 69 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/frazzled-theoretical-physicist-reckons-all-conservation-laws-are-obeyed-decay A frazzled theoretical physicist reckons that all conservation laws… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe82/thumbs-ed1ch31pe82-00002.png A frazzled theoretical physicist reckons that all conservation laws are obeyed in the decay of a proton into a neutron, positron, and neutrino (as in \beta^+ decay of a nucleus) and sends a paper to a journal to announce the reaction as a possible end of the universe due to the spontaneous decay of protons. (a) What energy is released in this decay? (b) What is unreasonable about this result? (c) What assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch31/pe82/ed1ch31pe82.mp4 114 2 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neutron-induced-fission-reaction-239textrmpu-which-following-produced-along In a neutron-induced fission reaction of {}^{239} Pu , which of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap09/thumbs-ed1ch32ap09-00002.png In a neutron-induced fission reaction of {}^{239} Pu , which of the following is produced along with {}^{96} Sr and four neutrons? (a) {}^{139}\_{56} Ba (b) {}^{140}\_{56} Ba (c) {}^{139}\_{54} Xe (d) {}^{140}\_{54} Xe https://seo-videos.collegephysicsanswers.com/ch32/ap09/ed1ch32ap09.mp4 63 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1980s-term-picowave-was-used-describe-food-irradiation-order-overcome-public In the 1980s, the term picowave was used to describe food irradiation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe14/thumbs-ed1ch32pe14-00002.png In the 1980s, the term picowave was used to describe food irradiation in order to overcome public resistance by playing on the well-known safety of microwave radiation. Find the energy in MeV of a photon having a wavelength of a picometer. https://seo-videos.collegephysicsanswers.com/ch32/pe14/ed1ch32pe14.mp4 48 2 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-only-energy-mass-considerations-how-many-k0-could-z-boson-decay-how-many Using only energy-mass considerations, how many K^0 could a Z boson… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap12/thumbs-ed1ch33ap12-00002.png Using only energy-mass considerations, how many K^0 could a Z boson decay into? How many electrons and positrons could be produced this way? https://seo-videos.collegephysicsanswers.com/ch33/ap12/ed1ch33ap12.mp4 132 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-total-number-nucleons-total-charge-and-electron-family-number-are-1 Verify that the total number of nucleons, total charge, and electron… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe38/thumbs-ed1ch32pe38-00002.png Verify that the total number of nucleons, total charge, and electron family number are conserved for each of the fusion reactions in the carbon cycle given in the above problem. (List the value of each of the conserved quantities before and after each of the reactions.) https://seo-videos.collegephysicsanswers.com/ch32/pe38/ed1ch32pe38.mp4 220 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/estimate-years-deuterium-fuel-oceans-could-supply-energy-needs-world-assume (a) Estimate the years that the deuterium fuel in the oceans could… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe42/thumbs-ed1ch32pe42-00002.png (a) Estimate the years that the deuterium fuel in the oceans could supply the energy needs of the world. Assume world energy consumption to be ten times that of the United States which is 8 x 10^{19} J/y and that the deuterium in the oceans could be converted to energy with an efficiency of 32%. You must estimate or look up the amount of water in the oceans and take the deuterium content to be 0.015% of natural hydrogen to find the mass of deuterium available. Note that approximate energy yield of deuterium is 3.37 x 10^{14} J/kg . (b) Comment on how much time this is by any human measure. (It is not an unreasonable result, only an impressive one.) https://seo-videos.collegephysicsanswers.com/ch32/pe42/ed1ch32pe42.mp4 352 2 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-each-reactions-listed-plutonium-breeding-just-following-example-324 Confirm that each of the reactions listed for plutonium breeding just… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe46/thumbs-ed1ch32pe46-00002.png Confirm that each of the reactions listed for plutonium breeding just following [Example 32.4](https://openstax.org/books/college-physics/pages/32-6-fission#fs-id3180113) conserves the total number of nucleons, the total charge, and electron family number. https://seo-videos.collegephysicsanswers.com/ch32/pe46/ed1ch32pe46.mp4 153 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radiation-enhanced-nuclear-weapon-or-neutron-bomb-can-have-smaller-total-yield A radiation-enhanced nuclear weapon (or neutron bomb) can have a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe55/thumbs-ed1ch32pe55-00002.png A radiation-enhanced nuclear weapon (or neutron bomb) can have a smaller total yield and still produce more prompt radiation than a conventional nuclear bomb. This allows the use of neutron bombs to kill nearby advancing enemy forces with radiation without blowing up your own forces with the blast. For a 0.500-kT radiation-enhanced weapon and a 1.00-kT conventional nuclear bomb: (a) Compare the blast yields. (b) Compare the prompt radiation yields. https://seo-videos.collegephysicsanswers.com/ch32/pe55/ed1ch32pe55.mp4 216 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/100-mt-bomb-exploded-few-kilometers-above-ground-deposits-250-its-energy-radiant A 1.00-MT bomb exploded a few kilometers above the ground deposits… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe60/thumbs-ed1ch32pe60-00002.png A 1.00-MT bomb exploded a few kilometers above the ground deposits 25.0% of its energy into radiant heat. (a) Find the calories per cm ^2 at a distance of 10.0 km by assuming a uniform distribution over a spherical surface of that radius. (b) If this heat falls on a person's body, what temperature increase does it cause in the affected tissue, assuming it is absorbed in a layer 1.00-cm deep? https://seo-videos.collegephysicsanswers.com/ch32/pe60/ed1ch32pe60.mp4 299 2 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-activity-r-curies-100-g-226textrmra-b-discuss-why-your-answer-not (a) Calculate the activity R in curies of 1.00 g of {}^{226} Ra . (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe46/thumbs-ed1ch31pe46-00002.png (a) Calculate the activity R in curies of 1.00 g of {}^{226} Ra . (b) Discuss why your answer is not exactly 1.00 Ci, given that the curie was originally supposed to be exactly the activity of a gram of radium. https://seo-videos.collegephysicsanswers.com/ch31/pe46/ed1ch31pe46.mp4 149 82 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-intact-not-ionized-hydrogen-atoms-are-10-cm-apart-which-following-are-true Two intact (not ionized) hydrogen atoms are 10 cm apart. Which of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap01/thumbs-ed1ch33ap01-00002.png Two intact (not ionized) hydrogen atoms are 10 cm apart. Which of the following are true? (a) Gravity, though very weak, is acting between them.(b) The neutral charge means the electromagnetic force between them can be ignored.(c) The range is too long for the strong force to be involved.(d) All of the above. https://seo-videos.collegephysicsanswers.com/ch33/ap01/ed1ch33ap01.mp4 54 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-when-free-neutron-decays-it-transforms-proton-and-electron-calculate Assume that when a free neutron decays, it transforms into a proton… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap14/thumbs-ed1ch33ap14-00002.png Assume that when a free neutron decays, it transforms into a proton and an electron. Calculate the kinetic energy of the electron. https://seo-videos.collegephysicsanswers.com/ch33/ap14/ed1ch33ap14.mp4 220 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-pointlike-particles-would-experiment-scattering-high-energy-electrons How many pointlike particles would an experiment scattering high… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap17/thumbs-ed1ch33ap17-00002.png How many pointlike particles would an experiment scattering high energy electrons from any meson discover within the meson? (a) 1(b) 2(c) 3(d) 4 https://seo-videos.collegephysicsanswers.com/ch33/ap17/ed1ch33ap17.mp4 69 2019-05-16 yes 2019-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-length-track-does-pi-traveling-0100c-leave-bubble-chamber-if-it-created What length track does a \pi^+ traveling at 0.100c leave in a bubble… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe08/thumbs-ed1ch33pe08-00002.png What length track does a \pi^+ traveling at 0.100c leave in a bubble chamber if it is created there and lives for 2.60 x 10^{-8} s ? (Those moving faster or living longer may escape the detector before decaying.) https://seo-videos.collegephysicsanswers.com/ch33/pe08/ed1ch33pe08.mp4 35 5 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/only-combination-quark-colors-produces-white-baryon-rgb-identify-all-color The only combination of quark colors that produces a white baryon is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe32/thumbs-ed1ch33pe32-00002.png The only combination of quark colors that produces a white baryon is RGB. Identify all the color combinations that can produce a white meson. https://seo-videos.collegephysicsanswers.com/ch33/pe32/ed1ch33pe32.mp4 42 2 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-conjectured-decay-proton-p-rightarrow-pi0-e-violates-conservation-baryon (a) Show that the conjectured decay of the proton, p \rightarrow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe34/thumbs-ed1ch33pe34-00002.png (a) Show that the conjectured decay of the proton, p \rightarrow \pi^0 + e^+, violates conservation of baryon number and conservation of lepton number. (b) What is the analogous decay process for the antiproton? https://seo-videos.collegephysicsanswers.com/ch33/pe34/ed1ch33pe34.mp4 91 2 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-are-particles-called-bottom-mesons-or-b-mesons-one-them-b-meson-which-has There are particles called bottom mesons or B^- mesons. One of them… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe40/thumbs-ed1ch33pe40-00002.png There are particles called bottom mesons or B^- mesons. One of them is the B^- meson, which has a single negative charge; its baryon number is zero, as are its strangeness, charm, and topness. It has a bottomness of −1 . What is its quark configuration? https://seo-videos.collegephysicsanswers.com/ch33/pe40/ed1ch33pe40.mp4 100 4 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particle-and-its-antiparticle-are-rest-relative-observer-and-annihilate (a) A particle and its antiparticle are at rest relative to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe12/thumbs-ed1ch34pe12-00002.png (a) A particle and its antiparticle are at rest relative to an observer and annihilate (completely destroying both masses), creating two γ rays of equal energy. What is the characteristic γ -ray energy you would look for if searching for evidence of proton-antiproton annihilation? (The fact that such radiation is rarely observed is evidence that there is very little antimatter in the universe.) (b) How does this compare with the 0.511-MeV energy associated with electron-positron annihilation? https://seo-videos.collegephysicsanswers.com/ch34/pe12/ed1ch34pe12.mp4 90 1 5 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/peak-intensity-cmbr-occurs-wavelength-11-mm-what-energy-ev-11-mm-photon-b-there The peak intensity of the CMBR occurs at a wavelength of 1.1 mm. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe14/thumbs-ed1ch34pe14-00002.png The peak intensity of the CMBR occurs at a wavelength of 1.1 mm. (a) What is the energy in eV of a 1.1-mm photon? (b) There are approximately 10^9 photons for each massive particle in deep space. Calculate the energy of 10^9 such photons. (c) If the average massive particle in space has a mass half that of a proton, what energy would be created by converting its mass to energy? (d) Does this imply that space is “matter dominated”? Explain briefly. https://seo-videos.collegephysicsanswers.com/ch34/pe14/ed1ch34pe14.mp4 105 1 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/get-idea-how-empty-deep-space-average-perform-following-calculations-find-volume To get an idea of how empty deep space is on the average, perform the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe30/thumbs-ed1ch34pe30-00002.png To get an idea of how empty deep space is on the average, perform the following calculations: (a) Find the volume our Sun would occupy if it had an average density equal to the critical density of 10^{-26} kg/m ^3 thought necessary to halt the expansion of the universe. (b) Find the radius of a sphere of this volume in light years. (c) What would this radius be if the density were that of luminous matter, which is approximately 5% that of the critical density? (d) Compare the radius found in part (c) with the 4-ly average separation of stars in the arms of the Milky Way. https://seo-videos.collegephysicsanswers.com/ch34/pe30/ed1ch34pe30.mp4 254 3 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/210textrmpo-source-used-physics-laboratory-labeled-having-activity-10textrm (a) The {}^{210} Po source used in a physics laboratory is labeled… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe60/thumbs-ed1ch31pe60-00002.png (a) The {}^{210} Po source used in a physics laboratory is labeled as having an activity of 1.0 \mu Ci on the date it was prepared. A student measures the radioactivity of this source with a Geiger counter and observes 1500 counts per minute. She notices that the source was prepared 120 days before her lab. What fraction of the decays is she observing with her apparatus? (b) Identify some of the reasons that only a fraction of the α s emitted are observed by the detector. https://seo-videos.collegephysicsanswers.com/ch31/pe60/ed1ch31pe60.mp4 221 16 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-reaction-equation-electron-capture-7textrmbe-b-calculate-energy (a) Write the complete reaction equation for electron capture by {}^7… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe42/thumbs-ed1ch31pe42-00002.png (a) Write the complete reaction equation for electron capture by {}^7 Be . (b) Calculate the energy released. https://seo-videos.collegephysicsanswers.com/ch31/pe42/ed1ch31pe42.mp4 165 26 1 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/50textrmv-has-one-longest-known-radioactive-half-lives-difficult-experiment {}^{50} V has one of the longest known radioactive half-lives. In a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe52/thumbs-ed1ch31pe52-00002.png {}^{50} V has one of the longest known radioactive half-lives. In a difficult experiment, a researcher found that the activity of 1.00 kg of {}^{50} V is 1.75 Bq. What is the half-life in years? https://seo-videos.collegephysicsanswers.com/ch31/pe52/ed1ch31pe52.mp4 170 60 2021-05-14 yes 2021-05-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nuclear-physicist-find-10textrm-mutextrmg-236textrmu-piece-uranium-ore-and A nuclear physicist find 1.0 \mu g of {}^{236} U in a piece of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe66/thumbs-ed1ch31pe66-00002.png A nuclear physicist find 1.0 \mu g of {}^{236} U in a piece of uranium ore and assumes it is primordial since its half-life is 2.3 x 10^{7} y . (a) Calculate the amount of {}^{236} U that would had to have been on Earth when it formed 4.5 x 10^{9} y ago for 1.0 \mu g to be left today. (b) What is unreasonable about this result? (c) What assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch31/pe66/ed1ch31pe66.mp4 149 12 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/56textrmfe-among-most-tightly-bound-all-nuclides-it-more-90-natural-iron-note {}^{56} Fe is among the most tightly bound of all nuclides. It is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe70/thumbs-ed1ch31pe70-00002.png {}^{56} Fe is among the most tightly bound of all nuclides. It is more than 90% of natural iron. Note that {}^{56} Fe has even numbers of both protons and neutrons. Calculate \dfrac{ BE }{ A } , the binding energy per nucleon, for {}^{56} Fe and compare it with the approximate value obtained from the graph in Figure 31.27. https://seo-videos.collegephysicsanswers.com/ch31/pe70/ed1ch31pe70.mp4 162 72 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-total-charge-qtot-you-can-split-any-manner-once-split Suppose you have a total charge q_{tot} that you can split in any… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe19/thumbs-ed1ch18pe33-00002.png Suppose you have a total charge q_{tot} that you can split in any manner. Once split, the separation distance is fixed. How do you split the charge to achieve the greatest force? https://seo-videos.collegephysicsanswers.com/ch18/pe19/ed1ch18pe33.mp4 291 138 5 2018-06-08 yes 2018-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ceramic-glaze-red-orange-fiestaware-plate-textrmu2textrmo3-and-contains-500 The ceramic glaze on a red-orange Fiestaware plate is U _2 O _3 and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe62/thumbs-ed1ch31pe62-00002.png The ceramic glaze on a red-orange Fiestaware plate is U _2 O _3 and contains 50.0 grams of {}^{238} U , but very little {}^{235} U . (a) What is the activity of the plate? (b) Calculate the total energy that will be released by the {}^{238} U decay. (c) If energy is worth 12.0 cents per kW \cdot h , what is the monetary value of the energy emitted? (These plates went out of production some 30 years ago, but are still available as collectibles.) https://seo-videos.collegephysicsanswers.com/ch31/pe62/ed1ch31pe62.mp4 209 16 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/galileo-space-probe-was-launched-its-long-journey-past-several-planets-1989 The _Galileo_ space probe was launched on its long journey past… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe64/thumbs-ed1ch31pe64-00002.png The _Galileo_ space probe was launched on its long journey past several planets in 1989, with an ultimate goal of Jupiter. Its power source is 11.0 kg of {}^{238} Pu , a by-product of nuclear weapons plutonium production. Electrical energy is generated thermoelectrically from the heat produced when the 5.59-MeV \alpha particles emitted in each decay crash to a halt inside the plutonium and its shielding. The half-life of {}^{238} Pu is 87.7 years. (a) What was the original activity of the {}^{238} Pu in becquerel? (b) What power was emitted in kilowatts? (c) What power was emitted 12.0 y after launch? You may neglect any extra energy from daughter nuclides and any losses from escaping \gamma rays. https://seo-videos.collegephysicsanswers.com/ch31/pe64/ed1ch31pe64.mp4 231 21 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-be-235textrmu-rarer-two-most-common-uranium-isotopes-b-calculate-be (a) Calculate BE / A for {}^{235} U , the rarer of the two most… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe72/thumbs-ed1ch31pe72-00002.png (a) Calculate BE / A for {}^{235} U , the rarer of the two most common uranium isotopes. (b) Calculate BE / A for {}^{238} U . (Most of uranium is {}^{238} U .) Note that {}^{238} U has even numbers of both protons and neutrons. Is the BE / A of {}^{238} U significantly different from that of {}^{235} U ? https://seo-videos.collegephysicsanswers.com/ch31/pe72/ed1ch31pe72.mp4 281 27 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particle-physicist-discovers-neutral-particle-mass-202733-u-he-assumes-two A particle physicist discovers a neutral particle with a mass of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe76/thumbs-ed1ch31pe76-00002.png A particle physicist discovers a neutral particle with a mass of 2.02733 u that he assumes is two neutrons bound together. (a) Find the binding energy. (b) What is unreasonable about this result? (c) What assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch31/pe76/ed1ch31pe76.mp4 63 22 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/relatively-scarce-naturally-occurring-calcium-isotope-48textrmca-has-half-life The relatively scarce naturally occurring calcium isotope {}^{48} Ca … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe80/thumbs-ed1ch31pe80-00002.png The relatively scarce naturally occurring calcium isotope {}^{48} Ca has a half-life of about 2 x 10^{16} y . (a) A small sample of this isotope is labeled as having an activity of 1.0 Ci. What is the mass of the {}^{48} Ca in the sample? (b) What is unreasonable about this result? (c) What assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch31/pe80/ed1ch31pe80.mp4 168 12 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-t-magnetic-field-applied-perpendicular-path-charged-particles-bubble-chamber A 2.00-T magnetic field is applied perpendicular to the path of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe78/thumbs-ed1ch31pe78-00002.png A 2.00-T magnetic field is applied perpendicular to the path of charged particles in a bubble chamber. What is the radius of curvature of the path of a 10 MeV proton in this field? Neglect any slowing along its path. https://seo-videos.collegephysicsanswers.com/ch31/pe78/ed1ch31pe78.mp4 186 29 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fact-be-greatest-near-60-implies-range-nuclear-force-about-diameter-such The fact that BE / A is greatest for A near 60 implies that the range… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe74/thumbs-ed1ch31pe74-00002.png The fact that BE / A is greatest for A near 60 implies that the range of the nuclear force is about the diameter of such nuclides. (a) Calculate the diameter of an A = 60 nucleus. (b) Compare BE / A for {}^{58} Ni and {}^{90} Sr . The first is one of the most tightly bound nuclides, while the second is larger and less tightly bound. https://seo-videos.collegephysicsanswers.com/ch31/pe74/ed1ch31pe74.mp4 266 45 5 2021-05-18 yes 2021-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-10-ms-36-kmh-hint-show-explicitsteps-involved-converting-10-ms-36-kmh Show that 1.0 m/s = 3.6 km/h . Hint: Show the explicitsteps involved… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe03/thumbs-ed1ch01pe03-00002.png Show that 1.0 m/s = 3.6 km/h . Hint: Show the explicitsteps involved in converting 1.0 m/s = 3.6 km/h https://seo-videos.collegephysicsanswers.com/ch01/pe03/ed1ch01pe03.mp4 86 194 5 2018-01-30 yes 2018-01-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-electrostatic-gravitational-force-between-two-electrons-b-what-ratio a) Find the ratio of the electrostatic to gravitational force between… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe21/thumbs-ed1ch18pe35-00002.png a) Find the ratio of the electrostatic to gravitational force between two electrons. (b) What is this ratio for two protons? (c) Why is the ratio different for electrons and protons? https://seo-videos.collegephysicsanswers.com/ch18/pe21/ed1ch18pe35.mp4 112 255 5 2018-06-08 yes 2018-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/soccer-fields-vary-size-large-soccer-field-115-m-long-and-85-m-wide-what-are-its Soccer fields vary in size. A large soccer field is 115 m long and 85… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe05/thumbs-ed1ch01pe05-00002.png Soccer fields vary in size. A large soccer field is 115 m long and 85 m wide. What are its dimensions in feet and inches? (Assume that 1 meter equals 3.281 feet.) https://seo-videos.collegephysicsanswers.com/ch01/pe05/ed1ch01pe05.mp4 164 277 5 2018-01-30 yes 2018-01-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/naturally-occurring-40textrmk-listed-responsible-16-mremy-background-radiation Naturally occurring {}^{40} K is listed as responsible for 16 mrem/y… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe22/thumbs-ed1ch32pe22-00002.png Naturally occurring {}^{40} K is listed as responsible for 16 mrem/y of background radiation. Calculate the mass of {}^{40} K that must be inside the 55-kg body of a woman to produce this dose. Each {}^{40} K decay emits a 1.32-MeV \beta , and 50% of the energy is absorbed inside the body. https://seo-videos.collegephysicsanswers.com/ch32/pe22/ed1ch32pe22.mp4 336 11 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/another-set-reactions-result-fusing-hydrogen-helium-sun-and-especially-hotter Another set of reactions that result in the fusing of hydrogen into… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe36/thumbs-ed1ch32pe36-00002.png Another set of reactions that result in the fusing of hydrogen into helium in the Sun and especially in hotter stars is called the carbon cycle. It is {}^{12} C + {}^1 H \rightarrow {}^{13} N + \gamma{}^{13} N \rightarrow {}^{13} C +e^+ + \nu\_e{}^{13} C + {}^1 H \rightarrow {}^{14} N + \gamma{}^{14} N + {}^1 H \rightarrow {}^{15} O + \gamma{}^{15} O \rightarrow {}^{15} N + e^+ + \nu\_e{}^{15} N + {}^1 H \rightarrow {}^{12} C + {}^4 He Write down the overall effect of hte carbon cycle (as was done for the proton-proton cycle in 2e^- + 4{}^1 H \rightarrow {}^4 He + 2\nu\_e + 6\gamma). Note the number of protons ({}^1 H ) required and assume that the positrons (e^+) annihilate electrons to form more \gamma rays. https://seo-videos.collegephysicsanswers.com/ch32/pe36/ed1ch32pe36.mp4 191 10 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-fusion-reactions-mentioned-text-are-n-3textrmhe-rightarrow-4textrmhe-gamma Two fusion reactions mentioned in the text are n + {}^3 He… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe32/thumbs-ed1ch32pe32-00002.png Two fusion reactions mentioned in the text are n + {}^3 He \rightarrow {}^4 He + \gammaand n + {}^1 H \rightarrow {}^2 H + \gammaBoth reactions release energy, but the second also creates more fuel. Confirm that the energies produced in the reactions are 20.58 and 2.22 MeV, respectively. Comment on which product nuclide is most tightly bound, {}^4 He or {}^2 H https://seo-videos.collegephysicsanswers.com/ch32/pe32/ed1ch32pe32.mp4 169 6 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/annual-radiation-dose-14textrmc-our-bodies-001-msvy-each-14textrmc-decay-emits The annual radiation dose from {}^{14} C in our bodies is 0.01… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe24/thumbs-ed1ch32pe24-00002.png The annual radiation dose from {}^{14} C in our bodies is 0.01 mSv/y. Each {}^{14} C decay emits a \beta^- averaging 0.0750 MeV. Taking the fraction of {}^{14} C to be 1.3 x 10^{-12} of normal {}^{12} C , and assuming the body is 13% carbon, estimate the fraction of the decay energy absorbed. (The rest escapes, exposing those close to you.) https://seo-videos.collegephysicsanswers.com/ch32/pe24/ed1ch32pe24.mp4 438 6 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neutrons-source-perhaps-one-discussed-x-ray-series-bombard-natural-molybdenum Neutrons from a source (perhaps the one discussed in the x-ray… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe02/thumbs-ed1ch32pe02-00002.png Neutrons from a source (perhaps the one discussed in the x-ray series) bombard natural molybdenum, which is 24 percent {}^{98} Mo . What is the energy output of the reaction {}^{98} Mo + n \rightarrow {}^{99} Mo + \gamma? The mass of {}^{98} Mo is given in [Appendix A: Atomic Masses](https://openstax.org/books/college-physics/pages/a-atomic-masses), and that of {}^{99} Mo is 98.907711 u. https://seo-videos.collegephysicsanswers.com/ch32/pe02/ed1ch32pe02.mp4 112 23 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-gy-exposure-needed-give-cancerous-tumor-dose-40-sv-if-it-exposed-alpha How many Gy of exposure is needed to give a cancerous tumor a dose of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe10/thumbs-ed1ch32pe10-00002.png How many Gy of exposure is needed to give a cancerous tumor a dose of 40 Sv if it is exposed to \alpha activity? https://seo-videos.collegephysicsanswers.com/ch32/pe10/ed1ch32pe10.mp4 54 35 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-half-gamma-rays-99textrmmtextrmtc-are-absorbed-0170-mm-thick-lead-shielding One half the \gamma rays from {}^{99 m } Tc are absorbed by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe12/thumbs-ed1ch32pe12-00002.png One half the \gamma rays from {}^{99 m } Tc are absorbed by a 0.170-mm-thick lead shielding. Half of the \gamma rays that pass through the first layer of lead are absorbed in a second layer of equal thickness. What thickness of lead will absorb all but one in 1000 of these \gamma rays? https://seo-videos.collegephysicsanswers.com/ch32/pe12/ed1ch32pe12.mp4 193 38 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-mass-60textrmco-cancer-therapy-transillumination-unit-containing-500-kci What is the mass of {}^{60} Co in a cancer therapy transillumination… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe20/thumbs-ed1ch32pe20-00002.png What is the mass of {}^{60} Co in a cancer therapy transillumination unit containing 5.00 kCi of {}^{60} Co https://seo-videos.collegephysicsanswers.com/ch32/pe20/ed1ch32pe20.mp4 137 19 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-kilograms-water-are-needed-obtain-1988-mol-deuterium-assuming-deuterium How many kilograms of water are needed to obtain the 198.8 mol of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe34/thumbs-ed1ch32pe34-00002.png How many kilograms of water are needed to obtain the 198.8 mol of deuterium, assuming that deuterium is 0.01500% (by number) of natural hydrogen? https://seo-videos.collegephysicsanswers.com/ch32/pe34/ed1ch32pe34.mp4 202 14 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-released-neutron-induced-fission-reaction-n-235textrmu (a) Calculate the energy released in the neutron-induced fission… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe44/thumbs-ed1ch32pe44-00002.png (a) Calculate the energy released in the neutron-induced fission reaction n + {}^{235} U \rightarrow {}^{92} Kr + {}^{142} Ba + 2n given m({}^{92} Kr ) = 91.926269 u and m({}^{142} Ba ) = 141.916361 u . (b) Confirm that the total number of nucleons and total charge are conserved in this reaction. https://seo-videos.collegephysicsanswers.com/ch32/pe44/ed1ch32pe44.mp4 142 67 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-239textrmpu-nuclei-must-fission-produce-200-kt-yield-assuming-200-mev (a) How many {}^{239} Pu nuclei must fission to produce a 20.0-kT… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe56/thumbs-ed1ch32pe56-00002.png (a) How many {}^{239} Pu nuclei must fission to produce a 20.0-kT yield, assuming 200 MeV per fission? (b) What is the mass of this much {}^{239} Pu ? https://seo-videos.collegephysicsanswers.com/ch32/pe56/ed1ch32pe56.mp4 97 16 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-235textrmu-bombarded-one-neutron-following-fission-reaction-occurs When {}^{235} U is bombarded with one neutron, the following fission… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/ap10/thumbs-ed1ch32ap10-00002.png When {}^{235} U is bombarded with one neutron, the following fission reaction occurs: {}^{235} U + n \rightarrow {}^{141}\_{56} Ba + {}^{92}\_y Kr + xn(a) Find the values for x and y.(b) Assuming that the mass of {}^{235} U is 235.04 u, the mass of {}^{141} Ba is 140.91 u, the mass of {}^{92} Kr is 91.93 u, and the mass of n is 1.01 u, a student calculates the energy released in the fission reaction as 2.689 x 10^{-8}, but forgets to write the unit. Find the correct unit and convert the answer to MeV. https://seo-videos.collegephysicsanswers.com/ch32/ap10/ed1ch32ap10.mp4 180 2 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/it-estimated-total-explosive-yield-all-nuclear-bombs-existence-currently-about It is estimated that the total explosive yield of all the nuclear… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe54/thumbs-ed1ch32pe54-00002.png It is estimated that the total explosive yield of all the nuclear bombs in existence currently is about 4,000 MT. (a) Convert this amount of energy to kilowatt-hours, noting that 1 kW \cdot h = 3.60 x 10^{6} J . (b) What would the monetary value of this energy be if it could be converted to electricity costing 10 cents per kW \cdot h ? https://seo-videos.collegephysicsanswers.com/ch32/pe54/ed1ch32pe54.mp4 68 25 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-mass-converted-energy-100-mt-bomb What mass is converted into energy by a 1.00-MT bomb? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe52/thumbs-ed1ch32pe52-00002.png What mass is converted into energy by a 1.00-MT bomb? https://seo-videos.collegephysicsanswers.com/ch32/pe52/ed1ch32pe52.mp4 49 27 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-gives-some-idea-magnitude-energy-yield-small-tactical-bomb-assume-half This problem gives some idea of the magnitude of the energy yield of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe58/thumbs-ed1ch32pe58-00002.png This problem gives some idea of the magnitude of the energy yield of a small tactical bomb. Assume that half the energy of a 1.00-kT nuclear depth charge set off under an aircraft carrier goes into lifting it out of the water—that is, into gravitational potential energy. How high is the carrier lifted if its mass is 90,000 tons? https://seo-videos.collegephysicsanswers.com/ch32/pe58/ed1ch32pe58.mp4 83 36 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/full-energy-protons-200-km-diameter-fermilab-synchrotron-travel-nearly-speed At full energy, protons in the 2.00-km-diameter Fermilab synchrotron… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe06/thumbs-ed1ch33pe06-00002.png At full energy, protons in the 2.00-km-diameter Fermilab synchrotron travel at nearly the speed of light, since their energy is about 1000 times their rest mass energy. (a) How long does it take for a proton to complete one trip around? (b) How many times per second will it pass through the target area? https://seo-videos.collegephysicsanswers.com/ch33/pe06/ed1ch33pe06.mp4 95 111 5 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-electron-and-positron-collide-slac-facility-they-each-have-500-gev-kinetic When an electron and positron collide at the SLAC facility, they each… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe12/thumbs-ed1ch33pe12-00002.png When an electron and positron collide at the SLAC facility, they each have 50.0 GeV kinetic energies. What is the total collision energy available, taking into account the annihilation energy? Note that the annihilation energy is insignificant, because the electrons are highly relativistic. https://seo-videos.collegephysicsanswers.com/ch33/pe12/ed1ch33pe12.mp4 74 12 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/primary-decay-mode-negative-pion-pi-rightarrow-mu-overlinenumu-what-energy The primary decay mode for the negative pion is \pi^- \rightarrow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe14/thumbs-ed1ch33pe14-00002.png The primary decay mode for the negative pion is \pi^- \rightarrow \mu^- + \overline{\nu_\mu}. What is the energy release in MeV in this decay? https://seo-videos.collegephysicsanswers.com/ch33/pe14/ed1ch33pe14.mp4 52 16 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-mode-negative-muon-mu-rightarrow-e-overlinenue-numu-find-energy-released The decay mode of the negative muon is \mu^- \rightarrow e^- +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe16/thumbs-ed1ch33pe16-00002.png The decay mode of the negative muon is \mu^- \rightarrow e^- + \overline{\nu_e} + \nu_\mu. (a) Find the energy released in MeV. (b) Verify that charge and lepton family numbers are conserved. https://seo-videos.collegephysicsanswers.com/ch33/pe16/ed1ch33pe16.mp4 122 19 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-mass-textrmgevc2-virtual-carrier-particle-has-range-limited-10 Calculate the mass in GeV/c ^2 of a virtual carrier particle that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe02/thumbs-ed1ch33pe02-00002.png Calculate the mass in GeV/c ^2 of a virtual carrier particle that has a range limited to 10^{-30} m by the Heisenberg uncertainty principle. Such a particle might be involved in the unification of the strong and electroweak forces. https://seo-videos.collegephysicsanswers.com/ch33/pe02/ed1ch33pe02.mp4 209 26 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/because-energy-loss-due-synchrotron-radiation-lhc-cern-only-500-mev-added-energy Because of energy loss due to synchrotron radiation in the LHC at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe10/thumbs-ed1ch33pe10-00002.png Because of energy loss due to synchrotron radiation in the LHC at CERN, only 5.00 MeV is added to the energy of each proton during each revolution around the main ring. How many revolutions are needed to produce 7.00-TeV (7000 GeV) protons, if they are injected with an initial energy of 8.00 GeV? https://seo-videos.collegephysicsanswers.com/ch33/pe10/ed1ch33pe10.mp4 108 18 2021-05-26 yes 2021-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-n-rightarrow-e-e-possible-considering-appropriate-conservation-laws-state Is the decay n \rightarrow e^+ + e^- possible considering the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe28/thumbs-ed1ch33pe28-00002.png Is the decay n \rightarrow e^+ + e^- possible considering the appropriate conservation laws? State why or why not. https://seo-videos.collegephysicsanswers.com/ch33/pe28/ed1ch33pe28.mp4 38 8 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-quantum-numbers-given-proton-and-neutron-table-332-adding-quantum-numbers Verify the quantum numbers given for the proton and neutron in [Table… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe36/thumbs-ed1ch33pe36-00002.png Verify the quantum numbers given for the proton and neutron in [Table 33.2](https://openstax.org/books/college-physics/pages/33-4-particles-patterns-and-conservation-laws#import-auto-id1169736657305) by adding the quantum numbers for their quark constituents as given in [Table 33.3](https://openstax.org/books/college-physics/pages/33-5-quarks-is-that-all-there-is#import-auto-id1169738110830). https://seo-videos.collegephysicsanswers.com/ch33/pe36/ed1ch33pe36.mp4 74 6 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-uncertainty-energy-released-decay-tau-due-its-short-lifetime-b-uncertainty (a) What is the uncertainty in the energy released in the decay of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe20/thumbs-ed1ch33pe20-00002.png (a) What is the uncertainty in the energy released in the decay of a \tau^- due to its short lifetime? (b) Is the uncertainty in this energy greater than or less than the uncertainty in the mass of the tau neutrino? Discuss the source of the uncertainty. https://seo-videos.collegephysicsanswers.com/ch33/pe20/ed1ch33pe20.mp4 136 18 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-conservation-momentum-what-energy-each-gamma-ray-produced-decay-neutral Assuming conservation of momentum, what is the energy of each \gamma… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe44/thumbs-ed1ch33pe44-00002.png Assuming conservation of momentum, what is the energy of each \gamma ray produced in the decay of a neutral at rest pion, in the reaction \pi^0 \rightarrow \gamma + \gamma? https://seo-videos.collegephysicsanswers.com/ch33/pe44/ed1ch33pe44.mp4 57 10 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-lambda0-rightarrow-n-pi0-possible-considering-appropriate-conservation (a) Is the decay \Lambda^0 \rightarrow n + \pi^0 possible considering… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe30/thumbs-ed1ch33pe30-00002.png (a) Is the decay \Lambda^0 \rightarrow n + \pi^0 possible considering the appropriate conservation laws? State why or why not. (b) Write the decay in terms of the quark constituents of the particles. https://seo-videos.collegephysicsanswers.com/ch33/pe30/ed1ch33pe30.mp4 132 12 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-charge-baryon-number-strangeness-charm-and-bottomness-jpsi-particle-its (a) Find the charge, baryon number, strangeness, charm, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe38/thumbs-ed1ch33pe38-00002.png (a) Find the charge, baryon number, strangeness, charm, and bottomness of the J/\Psi particle from its quark composition. (b) Do the same for the \Upsilon particle. https://seo-videos.collegephysicsanswers.com/ch33/pe38/ed1ch33pe38.mp4 116 8 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/principal-decay-mode-sigma-zero-sigma0-rightarrow-lambda-gamma-what-energy The principal decay mode of the sigma zero is \Sigma^0 \rightarrow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe18/thumbs-ed1ch33pe18-00002.png The principal decay mode of the sigma zero is \Sigma^0 \rightarrow \Lambda + \gamma (a) What energy is released? (b) Considering the quark structure of the two baryons, does it appear that the \Sigma^0 is an excited state of the \Lambda^0 ? (c) Verify that strangeness, charge, and baryon number are conserved in the decay. (d) Considering the preceding and the short lifetime, can the weak force be responsible? State why or why not. https://seo-videos.collegephysicsanswers.com/ch33/pe18/ed1ch33pe18.mp4 193 10 5 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-decay-mode-eta-zero-meson-eta0-rightarrow-gamma-gamma-find-energy-released-b One decay mode for the eta-zero meson is \eta^0 \rightarrow \gamma +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe26/thumbs-ed1ch33pe26-00002.png One decay mode for the eta-zero meson is \eta^0 \rightarrow \gamma + \gamma. (a) Find the energy released. (b) What is the uncertainty in the energy due to the short lifetime? (c) Write the decay in terms of the constituent quarks. (d) Verify that baryon number, lepton numbers, and charge are conserved. https://seo-videos.collegephysicsanswers.com/ch33/pe26/ed1ch33pe26.mp4 161 10 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-decay-modes-omega-minus-omega-rightarrow-xi0-pi-what-change-strangeness-b One of the decay modes of the omega minus is \Omega^- \rightarrow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe24/thumbs-ed1ch33pe24-00002.png One of the decay modes of the omega minus is \Omega^- \rightarrow \Xi^0 + \pi^- (a) What is the change in strangeness? (b) Verify that baryon number and charge are conserved, while lepton numbers are unaffected. (c) Write the equation in terms of the constituent quarks, indicating that the weak force is responsible. https://seo-videos.collegephysicsanswers.com/ch33/pe24/ed1ch33pe24.mp4 201 10 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-k-initially-hits-proton-and-creates-three-new-particles-identify-them-and In this figure, a K^- initially hits a proton, and creates three new… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/ap18/thumbs-ed1ch33ap18-00002.png In this figure, a K^- initially hits a proton, and creates three new particles. Identify them, and explain how quark flavors are conserved. https://seo-videos.collegephysicsanswers.com/ch33/ap18/ed1ch33ap18.mp4 122 2 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-all-combinations-three-quarks-produce-integral-charges-thus-baryons-must (a) Show that all combinations of three quarks produce integral… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe42/thumbs-ed1ch33pe42-00002.png (a) Show that all combinations of three quarks produce integral charges. Thus baryons must have integral charge. (b) Show that all combinations of a quark and an antiquark produce only integral charges. Thus mesons must have integral charge. https://seo-videos.collegephysicsanswers.com/ch33/pe42/ed1ch33pe42.mp4 154 6 2021-05-29 yes 2021-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-relativistic-quantity-gamma-dfrac1sqrt1-v2c2-100-tev-protons-produced (a) Calculate the relativistic quantity \gamma =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe46/thumbs-ed1ch33pe46-00002.png (a) Calculate the relativistic quantity \gamma = \dfrac{1}{\sqrt{1-v^2/c^2}} for 1.00-TeV protons produced at Fermilab. (b) If such a proton created a \pi^+ having the same speed, how long would its life be in the laboratory? (c) How far could it travel in this time? https://seo-videos.collegephysicsanswers.com/ch33/pe46/ed1ch33pe46.mp4 215 10 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/plans-accelerator-produces-secondary-beam-k-mesons-scatter-nuclei-purpose Plans for an accelerator that produces a secondary beam of K-mesons… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe48/thumbs-ed1ch33pe48-00002.png Plans for an accelerator that produces a secondary beam of K-mesons to scatter from nuclei, for the purpose of studying the strong force, call for them to have a kinetic energy of 500 MeV. (a) What would the relativistic quantity \gamma = \dfrac{1}{\sqrt{1 - v^2/c^2}} be for these particles? (b) How long would their average lifetime be in the laboratory? (c) How far could they travel in this time? https://seo-videos.collegephysicsanswers.com/ch33/pe48/ed1ch33pe48.mp4 224 6 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/supernovas-neutrinos-are-produced-huge-amounts-they-were-detected-1987a In supernovas, neutrinos are produced in huge amounts. They were… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe50/thumbs-ed1ch33pe50-00002.png In supernovas, neutrinos are produced in huge amounts. They were detected from the 1987A supernova in the Magellanic Cloud, which is about 120,000 light years away from the Earth (relatively close to our Milky Way galaxy). If neutrinos have a mass, they cannot travel at the speed of light, but if their mass is small, they can get close. (a) Suppose a neutrino with a 7 eV/c ^2 mass has a kinetic energy of 700 keV. Find the relativistic quantity \gamma = \dfrac{1}{\sqrt{1-v^2/c^2}} for it. (b) If the neutrino leaves the 1987A supernova at the same time as a photon and both travel to Earth, how much sooner does the photon arrive? This is not a large time difference, given that it is impossible to know which neutrino left with which photon and the poor efficiency of the neutrino detectors. Thus, the fact that neutrinos were observed within hours of the brightening of the supernova only places an upper limit on the neutrino's mass. (Hint: You may need to use a series expansion to find v for the neutrino, since its \gamma is so large.) https://seo-videos.collegephysicsanswers.com/ch33/pe50/ed1ch33pe50.mp4 465 10 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-galaxy-500-mly-away-us-how-fast-do-we-expect-it-be-moving-and-what-direction If a galaxy is 500 Mly away from us, how fast do we expect it to be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe04/thumbs-ed1ch34pe04-00002.png If a galaxy is 500 Mly away from us, how fast do we expect it to be moving and in what direction? https://seo-videos.collegephysicsanswers.com/ch34/pe04/ed1ch34pe04.mp4 36 7 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-approximate-mass-dark-and-luminous-matter-milky-way-galaxy-assume-luminous Find the approximate mass of the dark and luminous matter in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe02/thumbs-ed1ch34pe02-00002.png Find the approximate mass of the dark and luminous matter in the Milky Way galaxy. Assume the luminous matter is due to approximately 10^{11} stars of average mass 1.5 times that of our Sun, and take the dark matter to be 10 times as massive as the luminous matter. https://seo-videos.collegephysicsanswers.com/ch34/pe02/ed1ch34pe02.mp4 47 7 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/our-solar-system-orbits-center-milky-way-galaxy-assuming-circular-orbit-30000-ly Our solar system orbits the center of the Milky Way galaxy. Assuming… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe06/thumbs-ed1ch34pe06-00002.png Our solar system orbits the center of the Milky Way galaxy. Assuming a circular orbit 30,000 ly in radius and an orbital speed of 250 km/s, how many years does it take for one revolution? Note that this is approximate, assuming constant speed and circular orbit, but it is representative of the time for our system and local stars to make one revolution around the galaxy. https://seo-videos.collegephysicsanswers.com/ch34/pe06/ed1ch34pe06.mp4 126 9 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-approximate-force-gravity-70-kg-person-due-andromeda-galaxy-assuming-its (a) What is the approximate force of gravity on a 70-kg person due to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe10/thumbs-ed1ch34pe10-00002.png (a) What is the approximate force of gravity on a 70-kg person due to the Andromeda galaxy, assuming its total mass is 10^{13} that of our Sun and acts like a single mass 2 Mly away? (b) What is the ratio of this force to the person's weight? Note that Andromeda is the closest large galaxy. https://seo-videos.collegephysicsanswers.com/ch34/pe10/ed1ch34pe10.mp4 133 9 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-approximate-age-universe-average-value-hubble-constant-h0-20textrm (a) Calculate the approximate age of the universe from the average… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe08/thumbs-ed1ch34pe08-00002.png (a) Calculate the approximate age of the universe from the average value of the Hubble constant, H_0 = 20 km/s \cdot Mly . To do this, calculate the time it would take to travel 1 Mly at a constant expansion rate of 20 km/s. (b) If deceleration is taken into account, would the actual age of the universe be greater or less than that found here? Explain. https://seo-videos.collegephysicsanswers.com/ch34/pe08/ed1ch34pe08.mp4 177 5 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-schwarzschild-radius-black-hole-has-mass-eight-times-our-sun-note-stars What is the Schwarzschild radius of a black hole that has a mass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe22/thumbs-ed1ch34pe22-00002.png What is the Schwarzschild radius of a black hole that has a mass eight times that of our Sun? Note that stars must be more massive than the Sun to form black holes as a result of a supernova. https://seo-videos.collegephysicsanswers.com/ch34/pe22/ed1ch34pe22.mp4 38 16 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/supermassive-black-holes-are-thought-exist-center-many-galaxies-what-radius-such Supermassive black holes are thought to exist at the center of many… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe24/thumbs-ed1ch34pe24-00002.png Supermassive black holes are thought to exist at the center of many galaxies. (a) What is the radius of such an object if it has a mass of 10^9 Suns? (b) What is this radius in light years? https://seo-videos.collegephysicsanswers.com/ch34/pe24/ed1ch34pe24.mp4 87 22 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/critical-mass-density-needed-just-halt-expansion-universe-approximately-10 The critical mass density needed to just halt the expansion of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe28/thumbs-ed1ch34pe28-00002.png The critical mass density needed to just halt the expansion of the universe is approximately 10^{-26} kg/m ^3. (a) Convert this to eV/c ^2\cdot m ^3. (b) Find the number of neutrinos per cubic meter needed to close the universe if their average mass is 7 eV/c ^2 and they have negligible kinetic energies. https://seo-videos.collegephysicsanswers.com/ch34/pe28/ed1ch34pe28.mp4 84 11 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-velocity-star-orbiting-its-galaxy-circular-orbit-inversely-proportional Show that the velocity of a star orbiting its galaxy in a circular… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe16/thumbs-ed1ch34pe16-00002.png Show that the velocity of a star orbiting its galaxy in a circular orbit is inversely proportional to the square root of its orbital radius, assuming the mass of the stars inside its orbit acts like a single mass at the center of the galaxy. You may use an equation from a previous chapter to support your conclusion, but you must justify its use and define all terms used. https://seo-videos.collegephysicsanswers.com/ch34/pe16/ed1ch34pe16.mp4 120 9 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-data-previous-problem-find-increase-rotational-kinetic-energy-given-cores Using data from the [previous… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe18/thumbs-ed1ch34pe18-00002.png Using data from the [previous problem](https://collegephysicsanswers.com/openstax-solutions/core-star-collapses-during-supernova-forming-neutron-star-angular-momentum-core), find the increase in rotational kinetic energy, given the core's mass is 1.3 times that of our Sun. Where does this increase in kinetic energy come from? https://seo-videos.collegephysicsanswers.com/ch34/pe18/ed1ch34pe18.mp4 317 5 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/speed-limit-some-interstate-highways-roughly-100-kmh-what-meters-second-b-how The speed limit on some interstate highways is roughly 100 km/h. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe01/thumbs-ed1ch01pe01-00002.png The speed limit on some interstate highways is roughly 100 km/h. (a) What is this in meters per second? (b) How many miles per hour is this? https://d1igkeoc1zsqhw.cloudfront.net/ch01/pe01/ed1ch01pe01.mp4 131 458 3.7 2018-01-29 no 2018-01-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-speedometer-has-50-uncertainty-what-range-possible-speeds-when-it-reads (a) A car speedometer has a 5.0% uncertainty. What is the range of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe13/thumbs-ed1ch01pe13-00002.png (a) A car speedometer has a 5.0% uncertainty. What is the range of possible speeds when it reads 90 km/h ? (b) Convert this range to miles per hour. (1 km = 0.6214 mi ) https://seo-videos.collegephysicsanswers.com/ch01/pe13/ed1ch01pe13.mp4 182 375 3.9 2018-02-02 yes 2018-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/state-how-many-significant-figures-are-proper-results-following-calculations State how many significant figures are proper in the results of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe17/thumbs-ed1ch01pe17-00002.png State how many significant figures are proper in the results of the following calculations: (a) \dfrac{(106.7)(98.2)}{(46.210)(1.01)} (b) (18.7)^2 (c) \left( 1.60 x 10^{-19} \right) (3712) https://seo-videos.collegephysicsanswers.com/ch01/pe17/ed1ch01pe17.mp4 67 392 5 2018-02-02 yes 2018-02-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-your-speedometer-has-uncertainty-20-kmh-speed-90-kmh-what-percent-uncertainty (a) If your speedometer has an uncertainty of 2.0 km/h at a speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe19/thumbs-ed1ch01pe19-00002.png (a) If your speedometer has an uncertainty of 2.0 km/h at a speed of 90 km/h , what is the percent uncertainty? (b) If it has the same percent uncertainty when it reads 60 km/h , what is the range of speeds you could be going? https://seo-videos.collegephysicsanswers.com/ch01/pe19/ed1ch01pe19.mp4 313 235 4 2018-02-06 yes 2018-02-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-intercontinental-ballistic-missile-goes-rest-suborbital-speed-650-kms-600 Assume that an intercontinental ballistic missile goes from rest to a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe19/thumbs-ed1ch02pe19-00002.png Assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s in 60.0 s (the actual speed and time are classified). What is its average acceleration in m/s ^2 and in multiples of g (9.80 m/s ^2). https://seo-videos.collegephysicsanswers.com/ch02/pe19/ed1ch02pe19.mp4 72 537 4.3 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/freight-trains-can-produce-only-relatively-small-accelerations-and-decelerations Freight trains can produce only relatively small accelerations and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe29/thumbs-ed1ch02pe29-00002.png Freight trains can produce only relatively small accelerations and decelerations. (a) What is the final velocity of a freight train that accelerates at a rate of 0.0500 m/s ^2 for 8.00 min, starting with an initial velocity of 4.00 m/s? (b) If the train can slow down at a rate of 0.550 m/s ^2, how long will it take to come to a stop from this velocity? (c) How far will it travel in each case? https://seo-videos.collegephysicsanswers.com/ch02/pe29/ed1ch02pe29.mp4 319 571 3.7 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unwary-football-player-collides-padded-goalpost-while-running-velocity-750-ms An unwary football player collides with a padded goalpost while… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe33/thumbs-ed1ch02pe33-00002.png An unwary football player collides with a padded goalpost while running at a velocity of 7.50 m/s and comes to a full stop after compressing the padding and his body 0.350 m. (a) What is his deceleration? (b) How long does the collision last? https://seo-videos.collegephysicsanswers.com/ch02/pe33/ed1ch02pe33.mp4 254 463 4 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-grey-squirrel-falling-out-tree-ground-if-we-ignore-air-resistance-case Consider a grey squirrel falling out of a tree to the ground. (a) If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe35/thumbs-ed1ch02pe35-00002.png Consider a grey squirrel falling out of a tree to the ground. (a) If we ignore air resistance in this case (only for the sake of this problem), determine a squirrel's velocity just before hitting the ground, assuming it fell from a height of 3.0 m. (b) If the squirrel stops in a distance of 2.0 cm through bending its limbs, compare its deceleration with that of the airman in the previous problem. https://seo-videos.collegephysicsanswers.com/ch02/pe35/ed1ch02pe35.mp4 341 278 4.2 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-throw-ball-straight-initial-velocity-150-ms-it-passes-tree-branch-way-height You throw a ball straight up with an initial velocity of 15.0 m/s. It… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe49/thumbs-ed1ch02pe49-00002.png You throw a ball straight up with an initial velocity of 15.0 m/s. It passes a tree branch on the way up at a height of 7.00 m. How much additional time will pass before the ball passes the tree branch on the way back down? https://seo-videos.collegephysicsanswers.com/ch02/pe49/ed1ch02pe49.mp4 246 563 4 2018-02-13 yes 2018-02-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/standing-base-one-cliffs-mt-arapiles-victoria-australia-hiker-hears-rock-break Standing at the base of one of the cliffs of Mt. Arapiles in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe51/thumbs-ed1ch02pe51-00002.png Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 105 m. He can't see the rock right away but then does, 1.50 s later. (a) How far above the hiker is the rock when he can see it? (b) How much time does he have to move before the rock hits his head? https://seo-videos.collegephysicsanswers.com/ch02/pe51/ed1ch02pe51.mp4 325 288 4.8 2018-02-13 yes 2018-02-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/graph-vt-shown-world-class-track-sprinter-100-m-race-see-figure-267-what-his A graph of v(t) is shown for a world-class track sprinter in a 100-m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe65/thumbs-ed1ch02pe65-00002.png A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See Figure 2.67). (a) What is his average velocity for the first 4 s? (b) What is his instantaneous velocity at t = 5 s ? (c) What is his average acceleration between 0 and 4 s? (d) What is his time for the race? https://seo-videos.collegephysicsanswers.com/ch02/pe65/ed1ch02pe65.mp4 128 613 5 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-exercise-316-using-analytical-techniques-reverse-order-two-legs-walk-and Repeat Exercise 3.16 using analytical techniques, but reverse the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe17/ed1ch03pe17b-thumbnail.jpg Repeat Exercise 3.16 using analytical techniques, but reverse the order of the two legs of the walk and show that you get the same final result. (This problem shows that adding them in reverse order gives the same result—that is, **B + A = A + B**.) Discuss how taking another path to reach the same point might help to overcome an obstacle blocking your other path.**Exercise 3.16**: Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements A and B, as in Figure 3.60, then this problem asks you to find their sum **R = A + B**.) https://seo-videos.collegephysicsanswers.com/ch03/pe17/ed1ch03pe17b.mp4 259 373 4.7 2023-11-23 yes 2023-11-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-fly-320-km-straight-line-still-air-direction-350circ-south-west-find You fly 32.0 km in a straight line in still air in the direction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe21/thumbs-ed1ch03pe21-00002.png You fly 32.0 km in a straight line in still air in the direction 35.0° south of west. (a) Find the distances you would have to fly straight south and then straight west to arrive at the same point. (This determination is equivalent to finding the components of the displacement along the south and west directions.) (b) Find the distances you would have to fly first in a direction 45.0° south of west and then in a direction 45.0° west of north. These are the components of the displacement along a different set of axes—one rotated 45°. https://seo-videos.collegephysicsanswers.com/ch03/pe21/ed1ch03pe21.mp4 259 512 3.6 2018-02-15 yes 2018-02-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cannon-battleship-can-fire-shell-maximum-distance-320-km-calculate-initial The cannon on a battleship can fire a shell a maximum distance of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe33/thumbs-ed1ch03pe33-00002.png The cannon on a battleship can fire a shell a maximum distance of 32.0 km. (a) Calculate the initial velocity of the shell. (b) What maximum height does it reach? (At its highest, the shell is above 60% of the atmosphere—but air resistance is not really negligible as assumed to make this problem easier.) (c) The ocean is not flat, because the Earth is curved. Assume that the radius of the Earth is 6.37 x 10^3 km . How many meters lower will its surface be 32.0 km from the ship along a horizontal line parallel to the surface at the ship? Does your answer imply that error introduced by the assumption of a flat Earth in projectile motion is significant here? https://seo-videos.collegephysicsanswers.com/ch03/pe33/ed1ch03pe33.mp4 442 617 3.3 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/owl-carrying-mouse-chicks-its-nest-its-position-time-400-m-west-and-120-m-above An owl is carrying a mouse to the chicks in its nest. Its position at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe41/thumbs-ed1ch03pe41-00002.png An owl is carrying a mouse to the chicks in its nest. Its position at that time is 4.00 m west and 12.0 m above the center of the 30.0 cm diameter nest. The owl is flying east at 3.50 m/s at an angle 30.0° below the horizontal when it accidentally drops the mouse. Is the owl lucky enough to have the mouse hit the nest? To answer this question, calculate the horizontal position of the mouse when it has fallen 12.0 m. https://seo-videos.collegephysicsanswers.com/ch03/pe41/ed1ch03pe41.mp4 294 443 4.3 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/2007-michael-carter-us-set-world-record-shot-put-throw-2477-m-what-was-initial In 2007, Michael Carter (U.S.) set a world record in the shot put… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe45/thumbs-ed1ch03pe45-00002.png In 2007, Michael Carter (U.S.) set a world record in the shot put with a throw of 24.77 m. What was the initial speed of the shot if he released it at a height of 2.10 m and threw it at an angle of 38.0° above the horizontal? (Although the maximum distance for a projectile on level ground is achieved at 45°when air resistance is neglected, the actual angle to achieve maximum range is smaller [when air resistance occurs]; thus, 38° will give a longer range in the shot put.) https://seo-videos.collegephysicsanswers.com/ch03/pe45/ed1ch03pe45.mp4 391 382 3.6 2018-02-17 yes 2018-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/athlete-crosses-25-m-wide-river-swimming-perpendicular-water-current-speed-05-ms An athlete crosses a 25-m-wide river by swimming perpendicular to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe65/thumbs-ed1ch03pe65-00002.png An athlete crosses a 25-m-wide river by swimming perpendicular to the water current at a speed of 0.5 m/s relative to the water. He reaches the opposite side at a distance 40 m downstream from his starting point. How fast is the water in the river flowing with respect to the ground? What is the speed of the swimmer with respect to a friend at rest on the ground? https://seo-videos.collegephysicsanswers.com/ch03/pe65/ed1ch03pe65.mp4 163 357 3.1 2018-02-21 yes 2018-02-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-rocket-sled-shown-figure-431-starts-only-one-rocket-burning-what-magnitude (a) If the rocket sled shown in Figure 4.31 starts with only one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe07/thumbs-ed1ch04pe07-00002.png (a) If the rocket sled shown in Figure 4.31 starts with only one rocket burning, what is the magnitude of its acceleration? Assume that the mass of the system is 2100 kg, the thrust T is 2.4 x 10^4 N , and the force of friction opposing the motion is known to be 650 N. (b) Why is the acceleration not one- fourth of what it is with all rockets burning? https://seo-videos.collegephysicsanswers.com/ch04/pe07/ed1ch04pe07.mp4 89 692 3 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rocket-sled-shown-figure-432-accelerates-rate-490-ms2-its-passenger-has-mass-750 The rocket sled shown in Figure 4.32 accelerates at a rate of 49.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe11/thumbs-ed1ch04pe11-00002.png The rocket sled shown in Figure 4.32 accelerates at a rate of 49.0 m/s ^2. Its passenger has a mass of 75.0 kg. (a) Calculate the horizontal component of the force the seat exerts against his body. Compare this with his weight by using a ratio. (b) Calculate the direction and magnitude of the total force the seat exerts against his body. https://seo-videos.collegephysicsanswers.com/ch04/pe11/ed1ch04pe11.mp4 184 706 3.1 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-stated-text-force-fbot-exerted-flexible-medium-its-center-and-perpendicular Show that, as stated in the text, a force F_{\bot}, exerted on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe21/thumbs-ed1ch04pe21-00002.png Show that, as stated in the text, a force F_{\bot}, exerted on a flexible medium at its center and perpendicular to its length (such as on the tightrope wire in Figure 4.17) gives rise to a tension of magnitude T = \dfrac{F_{\bot}}{2\sin\theta} https://seo-videos.collegephysicsanswers.com/ch04/pe21/ed1ch04pe21.mp4 136 317 3.1 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1100-kg-car-pulls-boat-trailer-what-total-force-resists-motion-car-boat-and A 1100-kg car pulls a boat on a trailer. (a) What total force resists… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe29/thumbs-ed1ch04pe29-00002.png A 1100-kg car pulls a boat on a trailer. (a) What total force resists the motion of the car, boat, and trailer, if the car exerts a 1900-N force on the road and produces an acceleration of 0.550 m/s ^2? The mass of the boat plus trailer is 700 kg. (b) What is the force in the hitch between the car and the trailer if 80% of the resisting forces are experienced by the boat and trailer? https://seo-videos.collegephysicsanswers.com/ch04/pe29/ed1ch04pe29.mp4 238 477 4.4 2018-02-23 yes 2018-02-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-exerted-tooth-figure-437-if-tension-wire-250-n-note-force-applied What force is exerted on the tooth in Figure 4.37 if the tension in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe33/thumbs-ed1ch04pe33-00002.png What force is exerted on the tooth in Figure 4.37 if the tension in the wire is 25.0 N? Note that the force applied to the tooth is smaller than the tension in the wire, but this is necessitated by practical considerations of how force can be applied in the mouth. Explicitly show how you follow steps in the Problem-Solving Strategy for Newton’s laws of motion. https://seo-videos.collegephysicsanswers.com/ch04/pe33/ed1ch04pe33.mp4 74 515 3.3 2018-02-24 yes 2018-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-muscles-back-leg-pull-upward-achilles-tendon-shown-figure-439-these-muscles Two muscles in the back of the leg pull upward on the Achilles… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe41/thumbs-ed1ch04pe41-00002.png Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in Figure 4.39. (These muscles are called the medial and lateral heads of the gastrocnemius muscle.) Find the magnitude and direction of the total force on the Achilles tendon. What type of movement could be caused by this force? https://seo-videos.collegephysicsanswers.com/ch04/pe41/ed1ch04pe41.mp4 80 686 5 2018-02-24 yes 2018-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unreasonable-results-750-kg-man-stands-bathroom-scale-elevator-accelerates-rest Unreasonable Results: A 75.0-kg man stands on a bathroom scale in an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe51/thumbs-ed1ch04pe51-00002.png Unreasonable Results: A 75.0-kg man stands on a bathroom scale in an elevator that accelerates from rest to 30.0 m/s in 2.00 s. (a) Calculate the scale reading in newtons and compare it with his weight. (The scale exerts an upward force on him equal to its reading.) (b) What is unreasonable about the result? (c) Which premise is unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch04/pe51/ed1ch04pe51.mp4 207 231 2.8 2018-02-28 yes 2018-02-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-speed-spherical-rain-drop-would-achieve-falling-500-km-absence-air Calculate the speed a spherical rain drop would achieve falling from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe25/ed1ch05pe25b-thumbnail.jpg Calculate the speed a spherical rain drop would achieve falling from 5.00 km (a) in the absence of air drag (b) with air drag. Take the size across of the drop to be 4 mm, the density to be 1.00 x 10^3 kg/m ^3, and the surface area to be \pi r^2. https://seo-videos.collegephysicsanswers.com/ch05/pe25/ed1ch05pe25b.mp4 498 503 3.7 2023-12-15 yes 2023-12-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/propeller-world-war-ii-fighter-plane-230-m-diameter-what-its-angular-velocity The propeller of a World War II fighter plane is 2.30 m in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe13/thumbs-ed1ch06pe13-00002.png The propeller of a World War II fighter plane is 2.30 m in diameter.(a) What is its angular velocity in radians per second if it spins at 1200 rev/min? (b) What is the linear speed of its tip at this angular velocity if the plane is stationary on the tarmac? (c) What is the centripetal acceleration of the propeller tip under these conditions? Calculate it in meters per second squared and convert to multiples of g. https://seo-videos.collegephysicsanswers.com/ch06/pe13/ed1ch06pe13.mp4 135 592 4 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rotating-space-station-said-create-artificial-gravity-loosely-defined-term-used A rotating space station is said to create “artificial gravity”—a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe19/thumbs-ed1ch06pe19-00002.png A rotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. The outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. If the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s ^2 at the rim? https://seo-videos.collegephysicsanswers.com/ch06/pe19/ed1ch06pe19.mp4 64 443 3.7 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-centrifuge-one-shown-figure-637-used-expose-aspiring-astronauts A large centrifuge, like the one shown in Figure 6.37 (a), is used to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe29/thumbs-ed1ch06pe29-00002.png A large centrifuge, like the one shown in Figure 6.37 (a), is used to expose aspiring astronauts to accelerations similar to those experienced in rocket launches and atmospheric reentries.(a) At what angular velocity is the centripetal acceleration 10g if the rider is 15.0 m from the center of rotation? (b) The rider's cage hangs on a pivot at the end of the arm, allowing it to swing outward during rotation as shown in Figure 6.37 (b). At what angle \theta below the horizontal will the cage hang when the centripetal acceleration is 10g? (Hint: The arm supplies centripetal force and supports the weight of the cage. Draw a free body diagram of the forces to see what the angle \theta should be.) https://seo-videos.collegephysicsanswers.com/ch06/pe29/ed1ch06pe29.mp4 281 427 4.3 2018-03-14 yes 2018-03-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-acceleration-due-gravity-surface-moon-b-surface-mars-mass-mars-6418-times (a) What is the acceleration due to gravity on the surface of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe35/thumbs-ed1ch06pe35-00002.png (a) What is the acceleration due to gravity on the surface of the Moon?(b) On the surface of Mars? The mass of Mars is 6.418 x 10^{23} kg and its radius is 3.38 x 10^6 m . https://seo-videos.collegephysicsanswers.com/ch06/pe35/ed1ch06pe35.mp4 59 908 4.6 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/geosynchronous-earth-satellite-one-has-orbital-period-precisely-1-day-such A geosynchronous Earth satellite is one that has an orbital period of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe43/thumbs-ed1ch06pe43-00002.png A geosynchronous Earth satellite is one that has an orbital period of precisely 1 day. Such orbits are useful for communication and weather observation because the satellite remains above the same point on Earth (provided it orbits in the equatorial plane in the same direction as Earth's rotation). Calculate the radius of such an orbit based on the data for the moon in Table 6.2. https://seo-videos.collegephysicsanswers.com/ch06/pe43/ed1ch06pe43.mp4 121 417 4.8 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/typical-car-has-axle-110-cm-radius-driving-tire-radius-275-cm-what-its A typical car has an axle with 1.10 cm radius driving a tire with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe22/thumbs-ed1ch09pe22-00002.png A typical car has an axle with 1.10 cm radius driving a tire with a radius of 27.5 cm . What is its mechanical advantage assuming the very simplified model in Figure 9.24(b)? https://seo-videos.collegephysicsanswers.com/ch09/pe22/ed1ch09pe22.mp4 97 90 3.5 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-energy-considerations-calculate-average-force-600-kg-sprinter-exerts Using energy considerations, calculate the average force a 60.0-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe15/thumbs-ed1ch07pe15-00002.png Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00 to 8.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him. https://seo-videos.collegephysicsanswers.com/ch07/pe15/ed1ch07pe15.mp4 166 736 4.3 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-power-consumption-watts-appliance-uses-500-kw-cdot-textrmh-energy (a) What is the average power consumption in watts of an appliance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe35/thumbs-ed1ch07pe35-00002.png (a) What is the average power consumption in watts of an appliance that uses 5.00 kW \cdot h of energy per day? (b) How many joules of energy does this appliance consume in a year? https://seo-videos.collegephysicsanswers.com/ch07/pe35/ed1ch07pe35.mp4 118 164 5 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-kg-dragster-accelerates-rest-final-speed-110-ms-400-m-about-quarter-mile-and A 500-kg dragster accelerates from rest to a final speed of 110 m/s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe37/thumbs-ed1ch07pe37-00002.png A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30 s? https://seo-videos.collegephysicsanswers.com/ch07/pe37/ed1ch07pe37.mp4 158 495 4.3 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-useful-power-output-elevator-motor-lifts-2500-kg-load-height-350-m-120-s-if (a) Find the useful power output of an elevator motor that lifts a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe39/thumbs-ed1ch07pe39-00002.png (a) Find the useful power output of an elevator motor that lifts a 2500-kg load a height of 35.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg—so that only 2500 kg is raised in height, but the full 10,000 kg is accelerated. (b) What does it cost, if electricity is \$0.0900 per kW \cdot hr ? https://seo-videos.collegephysicsanswers.com/ch07/pe39/ed1ch07pe39.mp4 205 245 3.4 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/750-kg-cross-country-skier-climbing-30circ-slope-constant-speed-200-ms-and A 75.0-kg cross-country skier is climbing a 3.0° slope at a constant… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe61/thumbs-ed1ch07pe61-00002.png A 75.0-kg cross-country skier is climbing a 3.0° slope at a constant speed of 2.00 m/s and encounters air resistance of 25.0 N. Find his power output for work done against the gravitational force and air resistance. (b) What average force does he exert backward on the snow to accomplish this? (c) If he continues to exert this force and to experience the same air resistance when he reaches a level area, how long will it take him to reach a velocity of 10.0 m/s? https://seo-videos.collegephysicsanswers.com/ch07/pe61/ed1ch07pe61.mp4 235 135 3.4 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-efficiency-out-condition-professor-who-does-210-times-105-j-useful-work (a) What is the efficiency of an out-of-condition professor who does… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe47/thumbs-ed1ch07pe47-00002.png (a) What is the efficiency of an out-of-condition professor who does 2.10 x 10^5  J of useful work while metabolizing 500 kcal of food energy? (b) How many food calories would a well-conditioned athlete metabolize in doing the same work with an efficiency of 20%? https://seo-videos.collegephysicsanswers.com/ch07/pe47/ed1ch07pe47.mp4 74 166 1.2 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-momentum-2000-kg-elephant-charging-hunter-speed-750-ms-b-compare (a) Calculate the momentum of a 2000-kg elephant charging a hunter at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe01/thumbs-ed1ch08pe01-00002.png (a) Calculate the momentum of a 2000-kg elephant charging a hunter at a speed of 7.50  m/s . (b) Compare the elephant’s momentum with the momentum of a 0.0400-kg tranquilizer dart fired at a speed of 600 m/s . (c) What is the momentum of the 90.0-kg hunter running at 7.40 m/s after missing the elephant? https://d1igkeoc1zsqhw.cloudfront.net/ch08/pe01/ed1ch08pe01.mp4 95 502 3.6 2018-03-21 no 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-fire-hose-directed-horizontally-against-wall-rate-500-kgs-and-speed-420-ms Water from a fire hose is directed horizontally against a wall at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe17/thumbs-ed1ch08pe17-00002.png Water from a fire hose is directed horizontally against a wall at a rate of 50.0 kg/s and a speed of 42.0 m/s. Calculate the magnitude of the force exerted on the wall, assuming the water’s horizontal momentum is reduced to zero. https://seo-videos.collegephysicsanswers.com/ch08/pe17/ed1ch08pe17.mp4 116 273 5 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/space-probes-may-be-separated-their-launchers-exploding-bolts-they-bolt-away-one Space probes may be separated from their launchers by exploding… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe37/thumbs-ed1ch08pe37-00002.png Space probes may be separated from their launchers by exploding bolts. (They bolt away from one another.) Suppose a 4800-kg satellite uses this method to separate from the 1500-kg remains of its launcher, and that 5000 J of kinetic energy is supplied to the two parts. What are their subsequent velocities using the frame of reference in which they were at rest before separation? https://seo-videos.collegephysicsanswers.com/ch08/pe37/ed1ch08pe37.mp4 446 218 3 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/antiballistic-missiles-abms-are-designed-have-very-large-accelerations-so-they Antiballistic missiles (ABMs) are designed to have very large… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe53/thumbs-ed1ch08pe53-00002.png Antiballistic missiles (ABMs) are designed to have very large accelerations so that they may intercept fast-moving incoming missiles in the short time available. What is the takeoff acceleration of a 10,000-kg ABM that expels 196 kg of gas per second at an exhaust velocity of 2.50 x 10^3 m/s https://seo-videos.collegephysicsanswers.com/ch08/pe53/ed1ch08pe53.mp4 59 70 5 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-must-be-exerted-wind-support-250-kg-chicken-position-shown-figure-932 (a) What force must be exerted by the wind to support a 2.50-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe11/thumbs-ed1ch09pe11-00002.png (a) What force must be exerted by the wind to support a 2.50-kg chicken in the position shown in Figure 9.32? (b) What is the ratio of this force to the chicken's weight? (c) Does this support the contention that the chicken has a relatively stable construction? https://seo-videos.collegephysicsanswers.com/ch09/pe11/ed1ch09pe11.mp4 177 399 3.5 2018-04-10 yes 2018-04-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-initial-acceleration-rocket-has-mass-150-times-106-kg-takeoff-engines-which (a) What is the initial acceleration of a rocket that has a mass of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe39/thumbs-ed1ch04pe39-00002.png (a) What is the initial acceleration of a rocket that has a mass of 1.50 x 10^6 kg at takeoff, the engines of which produce a thrust of 2.00 x 10^6 N ? Do not neglect gravity. (b) What is unreasonable about the result? (This result has been unintentionally achieved by several real rockets.) (c) Which premise is unreasonable, or which premises are inconsistent? (You may find it useful to compare this problem to the rocket problem earlier in this section.) https://seo-videos.collegephysicsanswers.com/ch04/pe39/ed1ch04pe39.mp4 79 59 5 2018-02-24 yes 2018-02-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-coefficient-friction-needed-between-legs-and-ground-keep-sign (a) What minimum coefficient of friction is needed between the legs… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe15/thumbs-ed1ch09pe15-00002.png (a) What minimum coefficient of friction is needed between the legs and the ground to keep the sign in Figure 9.34 in the position shown if the chain breaks? (b) What force is exerted by each side on the hinge? https://seo-videos.collegephysicsanswers.com/ch09/pe15/ed1ch09pe15.mp4 483 178 3.8 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-mechanical-advantage-wheelbarrow-such-one-figure-923-if-center-gravity a) What is the mechanical advantage of a wheelbarrow, such as the one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe21/thumbs-ed1ch09pe21-00002.png a) What is the mechanical advantage of a wheelbarrow, such as the one in Figure 9.23, if the center of gravity of the wheelbarrow and its load has a perpendicular lever arm of 5.50 cm, while the hands have a perpendicular lever arm of 1.02 m? (b) What upward force should you exert to support the wheelbarrow and its load if their combined mass is 55.0 kg? (c) What force does the wheel exert on the ground? https://seo-videos.collegephysicsanswers.com/ch09/pe21/ed1ch09pe21.mp4 164 231 3.3 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/75-kg-man-stands-his-toes-exerting-upward-force-through-achilles-tendon-figure A 75-kg man stands on his toes by exerting an upward force through… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe33/thumbs-ed1ch09pe33-00002.png A 75-kg man stands on his toes by exerting an upward force through the Achilles tendon, as in Figure 9.41. (a) What is the force in the Achilles tendon if he stands on one foot? (b) Calculate the force at the pivot of the simplified lever system shown—that force is representative of forces in the ankle joint. https://seo-videos.collegephysicsanswers.com/ch09/pe33/ed1ch09pe33.mp4 98 496 3.5 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-120-kg-motorcycle-wheel-shown-figure-1038-assume-it-be-approximately Consider the 12.0 kg motorcycle wheel shown in Figure 10.38. Assume… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe15/thumbs-ed1ch10pe15-00002.png Consider the 12.0 kg motorcycle wheel shown in Figure 10.38. Assume it to be approximately an annular ring with an inner radius of 0.280 m and an outer radius of 0.330 m. The motorcycle is on its center stand, so that the wheel can spin freely. (a) If the drive chain exerts a force of 2200 N at a radius of 5.00 cm, what is the angular acceleration of the wheel? (b) What is the tangential acceleration of a point on the outer edge of the tire? (c) How long, starting from rest, does it take to reach an angular velocity of 80.0 rad/s? https://seo-videos.collegephysicsanswers.com/ch10/pe15/ed1ch10pe15.mp4 191 496 4.8 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/twin-skaters-approach-one-another-shown-figure-1039-and-lock-hands-calculate Twin skaters approach one another as shown in Figure 10.39 and lock… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe45/thumbs-ed1ch10pe45-00002.png Twin skaters approach one another as shown in Figure 10.39 and lock hands. (a) Calculate their final angular velocity, given each had an initial speed of 2.50 m/s relative to the ice. Each has a mass of 70.0 kg, and each has a center of mass located 0.800 m from their locked hands. You may approximate their moments of inertia to be that of point masses at this radius. (b) Compare the initial kinetic energy and final kinetic energy. https://seo-videos.collegephysicsanswers.com/ch10/pe45/ed1ch10pe45.mp4 207 272 3.6 2018-04-24 yes 2018-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-example-1015-which-stick-free-have-translational-motion-well-rotational Repeat Example 10.15 in which the stick is free to have translational… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe47/thumbs-ed1ch10pe47-00002.png Repeat Example 10.15 in which the stick is free to have translational motion as well as rotational motion.**Example 10.15**: Suppose the disk in Figure 10.26 has a mass of 50.0 g and an initial velocity of 30.0 m/s when it strikes the stick that is 1.20 m long and 2.00 kg. (a) What is the angular velocity of the two after the collision? (b) What is the kinetic energy before and after the collision? (c) What is the total linear momentum before and after the collision? https://seo-videos.collegephysicsanswers.com/ch10/pe47/ed1ch10pe47.mp4 517 44 5 2018-04-24 yes 2018-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-effective-resistance-pocket-calculator-has-135-v-battery-and-through Calculate the effective resistance of a pocket calculator that has a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe19/thumbs-ed1ch20pe19-00002.png Calculate the effective resistance of a pocket calculator that has a 1.35-V battery and through which 0.200 mA flows. https://seo-videos.collegephysicsanswers.com/ch20/pe19/ed1ch20pe19.mp4 21 138 3.2 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-when-typical-static-charge-0250-mutextrmc-moves-your-finger-metal What is the current when a typical static charge of 0.250 \mu C … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe03/thumbs-ed1ch20pe03-00002.png What is the current when a typical static charge of 0.250 \mu C moves from your finger to a metal doorknob in 1.00 \mu s ? https://seo-videos.collegephysicsanswers.com/ch20/pe03/ed1ch20pe03.mp4 44 121 4.2 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wire-drawn-through-die-stretching-it-four-times-its-original-length-what-factor A wire is drawn through a die, stretching it to four times its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe35/thumbs-ed1ch20pe35-00002.png A wire is drawn through a die, stretching it to four times its original length. By what factor does its resistance increase? https://seo-videos.collegephysicsanswers.com/ch20/pe35/ed1ch20pe35.mp4 211 122 4.6 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-heavy-industrial-equipment-uses-ac-power-has-peak-voltage-679-v-what-rms Certain heavy industrial equipment uses AC power that has a peak… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe73/thumbs-ed1ch20pe73-00002.png Certain heavy industrial equipment uses AC power that has a peak voltage of 679 V. What is the rms voltage? https://seo-videos.collegephysicsanswers.com/ch20/pe73/ed1ch20pe73.mp4 14 64 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-needed-transmit-100-times-102-mw-power-480-v-b-what-power (a) What current is needed to transmit 1.00 x 10^2 MW of power at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe69/thumbs-ed1ch20pe69-00002.png (a) What current is needed to transmit 1.00 x 10^2 MW of power at 480 V? (b) What power is dissipated by the transmission lines if they have a 1.00 \Omega resistance? (c) What is unreasonable about this result? (d) Which assumptions are unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch20/pe69/ed1ch20pe69.mp4 97 18 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resistance-ten-275omega-resistors-connected-series-b-parallel (a) What is the resistance of ten 275\Omega resistors connected in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe01/thumbs-ed1ch21pe01-00002.png (a) What is the resistance of ten 275\Omega resistors connected in series? (b) In parallel? https://d1igkeoc1zsqhw.cloudfront.net/ch21/pe01/ed1ch21pe01.mp4 47 223 3.8 2018-05-02 no 2018-05-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-internal-resistance-voltage-source-if-its-terminal-voltage-drops-200-v-when (a) What is the internal resistance of a voltage source if its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe25/thumbs-ed1ch21pe25-00002.png (a) What is the internal resistance of a voltage source if its terminal voltage drops by 2.00 V when the current supplied increases by 5.00 A? (b) Can the emf of the voltage source be found with the information supplied? https://seo-videos.collegephysicsanswers.com/ch21/pe25/ed1ch21pe25.mp4 232 127 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/apply-loop-rule-loop-akledcba-figure-2152 Apply the loop rule to loop akledcba in Figure 21.52. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe37/thumbs-ed1ch21pe37-00002.png Apply the loop rule to loop akledcba in Figure 21.52. https://seo-videos.collegephysicsanswers.com/ch21/pe37/ed1ch21pe37.mp4 138 242 4.4 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-circuit-figure-2153-and-suppose-emfs-are-unknown-and-currents-are-given Consider the circuit in Figure 21.53, and suppose that the emfs are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe41/thumbs-ed1ch21pe41-00002.png Consider the circuit in Figure 21.53, and suppose that the emfs are unknown and the currents are given to be I_1 = 5.00 A , I_2 = 3.0 A , and I_3 = -2.00 A . (a) Could you find the emfs? (b) What is wrong with the assumptions? https://seo-videos.collegephysicsanswers.com/ch21/pe41/ed1ch21pe41.mp4 30 68 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/solve-example-215-use-loop-abcdefgha-instead-loop-abcdea-explicitly-show-how-you Solve Example 21.5, but use loop abcdefgha instead of loop abcdea.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe39/thumbs-ed1ch21pe39-00002.png Solve Example 21.5, but use loop abcdefgha instead of loop abcdea. Explicitly show how you follow the steps in the Problem-Solving Strategies for Series and Parallel Resistors. https://seo-videos.collegephysicsanswers.com/ch21/pe39/ed1ch21pe39.mp4 469 126 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/flashing-lamp-christmas-earring-based-rc-discharge-capacitor-through-its A flashing lamp in a Christmas earring is based on an RC discharge of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe75/thumbs-ed1ch21pe75-00002.png A flashing lamp in a Christmas earring is based on an RC discharge of a capacitor through its resistance. The effective duration of the flash is 0.250 s, during which it produces an average 0.500 W from an average 3.00 V. (a) What energy does it dissipate? (b) How much charge moves through the lamp? (c) Find the capacitance. (d) What is the resistance of the lamp? https://seo-videos.collegephysicsanswers.com/ch21/pe75/ed1ch21pe75b.mp4 148 70 3.8 2024-01-16 yes 2024-01-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gold-sold-troy-ounce-31103-g-what-volume-1-troy-ounce-pure-gold Gold is sold by the troy ounce (31.103 g). What is the volume of 1… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe01/thumbs-ed1ch11pe01-00002.png Gold is sold by the troy ounce (31.103 g). What is the volume of 1 troy ounce of pure gold? https://d1igkeoc1zsqhw.cloudfront.net/ch11/pe01/ed1ch11pe01.mp4 51 172 3.8 2018-05-09 no 2018-05-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nail-tips-exert-tremendous-pressures-when-they-are-hit-hammers-because-they Nail tips exert tremendous pressures when they are hit by hammers… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe13/thumbs-ed1ch11pe13-00002.png Nail tips exert tremendous pressures when they are hit by hammers because they exert a large force over a small area. What force must be exerted on a nail with a circular tip of 1.00 mm diameter to create a pressure of 3.00 x 10^9 N/m ^2 (This high pressure is possible because the hammer striking the nail is brought to rest in such a short distance.) https://seo-videos.collegephysicsanswers.com/ch11/pe13/ed1ch11pe13.mp4 69 345 4 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-towers-store-water-above-level-consumers-times-heavy-use-eliminating-need Water towers store water above the level of consumers for times of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe17/thumbs-ed1ch11pe17-00002.png Water towers store water above the level of consumers for times of heavy use, eliminating the need for high-speed pumps. How high above a user must the water level be to create a gauge pressure of 3.00 x 10^5 N ? https://seo-videos.collegephysicsanswers.com/ch11/pe17/ed1ch11pe17.mp4 44 279 5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/woman-walks-her-entire-weight-momentarily-placed-one-heel-her-high-heeled-shoes As a woman walks, her entire weight is momentarily placed on one heel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe11/thumbs-ed1ch11pe11-00002.png As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted on the floor by the heel if it has an area of 1.50 cm ^2 and the woman's mass is 55.0 kg. Express the pressure in Pa. (In the early days of commercial flight, women were not allowed to wear high-heeled shoes because aircraft floors were too thin to withstand such large pressures.) https://seo-videos.collegephysicsanswers.com/ch11/pe11/ed1ch11pe11.mp4 63 461 4.1 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-density-180-karat-gold-mixture-18-parts-gold-5-parts-silver-and-1-part What is the density of 18.0-karat gold that is a mixture of 18 parts… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe09/thumbs-ed1ch11pe09-00002.png What is the density of 18.0-karat gold that is a mixture of 18 parts gold, 5 parts silver, and 1 part copper? (These values are parts by mass, not volume.) Assume that this is a simple mixture having an average density equal to the weighted densities of its constituents. https://seo-videos.collegephysicsanswers.com/ch11/pe09/ed1ch11pe09.mp4 192 170 4.6 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-gauge-and-absolute-pressures-balloon-and-peanut-jar-shown-figure-1115 Find the gauge and absolute pressures in the balloon and peanut jar… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe29/thumbs-ed1ch11pe29-00002.png Find the gauge and absolute pressures in the balloon and peanut jar shown in Figure 11.15, assuming the manometer connected to the balloon uses water whereas the manometer connected to the jar contains mercury. Express in units of centimeters of water for the balloon and millimeters of mercury for the jar, taking h = 0.0500 m for each. https://seo-videos.collegephysicsanswers.com/ch11/pe29/ed1ch11pe29.mp4 211 176 5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-bicycle-tires-are-perfectly-flexible-and-support-weight-bicycle-and Assuming bicycle tires are perfectly flexible and support the weight… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe35/thumbs-ed1ch11pe35-00002.png Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider by pressure alone, calculate the total area of the tires in contact with the ground. The bicycle plus rider has a mass of 80.0 kg, and the gauge pressure in the tires is 3.50 x 10^5 Pa . https://seo-videos.collegephysicsanswers.com/ch11/pe35/ed1ch11pe35.mp4 116 104 5 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/twin-sized-air-mattress-used-camping-has-dimensions-100-cm-200-cm-15-cm-when A twin-sized air mattress used for camping has dimensions of 100 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe51/thumbs-ed1ch11pe51-00002.png A twin-sized air mattress used for camping has dimensions of 100 cm by 200 cm by 15 cm when blown up. The weight of the mattress is 2 kg. How heavy a person could the air mattress hold if it is placed in freshwater? https://seo-videos.collegephysicsanswers.com/ch11/pe51/ed1ch11pe51.mp4 176 166 2.8 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/full-term-fetus-typically-has-mass-350-kg-what-pressure-does-weight-such-fetus A full-term fetus typically has a mass of 3.50 kg. (a) What pressure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe73/thumbs-ed1ch11pe73-00002.png A full-term fetus typically has a mass of 3.50 kg. (a) What pressure does the weight of such a fetus create if it rests on the mother's bladder, supported on an area of 90.0 cm ^2? (b) Convert this pressure to millimeters of mercury and determine if it alone is great enough to trigger the micturition reflex (it will add to any pressure already existing in the bladder). https://seo-videos.collegephysicsanswers.com/ch11/pe73/ed1ch11pe73.mp4 67 14 4 2018-05-15 yes 2018-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/physicist-performing-sensitive-measurement-wants-limit-magnetic-force-moving (a) A physicist performing a sensitive measurement wants to limit the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe11/thumbs-ed1ch22pe11-00002.png (a) A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less than 1.00 x 10^{-12} N . What is the greatest the charge can be if it moves at a maximum speed of 30.0 m/s in the Earth’s field? (b) Discuss whether it would be difficult to limit the charge to less than the value found in (a) by comparing it with typical static electricity and noting that static is often absent. https://seo-videos.collegephysicsanswers.com/ch22/pe11/ed1ch22pe11.mp4 167 89 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-will-proton-move-circular-path-same-radius-electron-exercise-2212-b (a) At what speed will a proton move in a circular path of the same… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe19/thumbs-ed1ch22pe19-00002.png (a) At what speed will a proton move in a circular path of the same radius as the electron in Exercise 22.12? (b) What would the radius of the path be if the proton had the same speed as the electron? (c) What would the radius be if the proton had the same kinetic energy as the electron? (d) The same momentum? https://seo-videos.collegephysicsanswers.com/ch22/pe19/ed1ch22pe19.mp4 345 167 5 2018-05-16 yes 2018-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dc-power-line-light-rail-system-carries-1000-angle-300circ-earths-500-times-10-5 (a) A DC power line for a light-rail system carries 1000 A at an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe35/thumbs-ed1ch22pe35-00002.png (a) A DC power line for a light-rail system carries 1000 A at an angle of 30.0° to the Earth’s 5.00 x 10^{-5} T field. What is the force on a 100-m section of this line? (b) Discuss practical concerns this presents, if any. https://seo-videos.collegephysicsanswers.com/ch22/pe35/ed1ch22pe35.mp4 40 96 3.8 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wire-carrying-300-current-passes-between-poles-strong-magnet-perpendicular-its A wire carrying a 30.0-A current passes between the poles of a strong… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe37/thumbs-ed1ch22pe37-00002.png A wire carrying a 30.0-A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.16-N force on the 4.00 cm of wire in the field. What is the average field strength? https://seo-videos.collegephysicsanswers.com/ch22/pe37/ed1ch22pe37.mp4 36 101 3.5 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-direction-and-magnitude-force-each-wire-experiences-figure-2258b-using Find the direction and magnitude of the force that each wire… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe57/thumbs-ed1ch22pe57-00002.png Find the direction and magnitude of the force that each wire experiences in Figure 22.58(b), using vector addition. https://seo-videos.collegephysicsanswers.com/ch22/pe57/ed1ch22pe57.mp4 926 91 4.8 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/see-why-mri-utilizes-iron-increase-magnetic-field-created-coil-calculate-current To see why an MRI utilizes iron to increase the magnetic field… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe61/thumbs-ed1ch22pe61-00002.png To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 400-loop-per-meter circular coil 0.660 m in radius to create a 1.20-T field (typical of an MRI instrument) at its center with no iron present. The magnetic field of a proton is approximately like that of a circular current loop 0.650 x 10^{-15} m in radius carrying 1.05 x 10^4 A . What is the field at the center of such a loop? https://seo-videos.collegephysicsanswers.com/ch22/pe61/ed1ch22pe61.mp4 119 103 5 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-angular-velocity-omega-electron-orbiting-proton-hydrogen-atom-given Calculate the angular velocity \Omega of an electron orbiting a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe57/thumbs-ed1ch18pe57-00002.png Calculate the angular velocity \Omega of an electron orbiting a proton in the hydrogen atom, given the radius of the orbit is 0.530 x 10^{-10} m You may assume that the proton is stationary and the centripetal force is supplied by Coulomb attraction. https://seo-videos.collegephysicsanswers.com/ch18/pe57/ed1ch18pe57.mp4 103 101 2018-06-13 yes 2018-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nonnuclear-submarines-use-batteries-power-when-submerged-find-magnetic-field-500 Nonnuclear submarines use batteries for power when submerged. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe63/thumbs-ed1ch22pe63-00002.png Nonnuclear submarines use batteries for power when submerged. (a) Find the magnetic field 50.0 cm from a straight wire carrying 1200 A from the batteries to the drive mechanism of a submarine. (b) What is the field if the wires to and from the drive mechanism are side by side? (c) Discuss the effects this could have for a compass on the submarine that is not shielded. https://seo-videos.collegephysicsanswers.com/ch22/pe63/ed1ch22pe63.mp4 101 20 5 2018-05-18 yes 2018-05-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/blood-passes-through-capillary-bed-organ-capillaries-join-form-venules-small (a) As blood passes through the capillary bed in an organ, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe07/thumbs-ed1ch12pe07-00002.png (a) As blood passes through the capillary bed in an organ, the capillaries join to form venules (small veins). If the blood speed increases by a factor of 4.00 and the total cross-sectional area of the venules is 10.0 cm ^2, what is the total cross-sectional area of the capillaries feeding these venules? (b) How many capillaries are involved if their average diameter is 10.0 \mu m ? https://seo-videos.collegephysicsanswers.com/ch12/pe07/ed1ch12pe07.mp4 200 233 3.8 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fluid-speed-fire-hose-900-cm-diameter-carrying-800-l-water-second-b-what (a) What is the fluid speed in a fire hose with a 9.00-cm diameter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe11/thumbs-ed1ch12pe11-00002.png (a) What is the fluid speed in a fire hose with a 9.00-cm diameter carrying 80.0 L of water per second? (b) What is the flow rate in cubic meters per second? (c) Would your answers be different if salt water replaced the fresh water in the fire hose? https://seo-videos.collegephysicsanswers.com/ch12/pe11/ed1ch12pe11.mp4 88 122 4 2018-05-25 yes 2018-05-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/practical-limit-electric-field-air-about-300-times-106-nc-above-strength The practical limit to an electric field in air is about 3.00 x 10^6… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe59/thumbs-ed1ch18pe59-00002.png The practical limit to an electric field in air is about 3.00 x 10^6 N/C . Above this strength, sparking takes place because air begins to ionize and charges flow, reducing the field. (a) Calculate the distance a free proton must travel in this field to reach 3.00% of the speed of light, starting from rest. (b) Is this practical in air, or must it occur in a vacuum? https://seo-videos.collegephysicsanswers.com/ch18/pe59/ed1ch18pe59.mp4 130 69 5 2018-06-13 yes 2018-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/500-g-ball-copper-has-net-charge-200-mutextrmc-what-fraction-coppers-electrons A 50.0 g ball of copper has a net charge of 2.00 \mu C . What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe07/thumbs-ed1ch18pe07-00002.png A 50.0 g ball of copper has a net charge of 2.00 \mu C . What fraction of the copper's electrons has been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.) https://seo-videos.collegephysicsanswers.com/ch18/pe07/ed1ch18pe07.mp4 89 302 3.8 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-symmetry-arrangement-determine-direction-electric-field-center-square (a) Using the symmetry of the arrangement, determine the direction of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe46/thumbs-ed1ch18pe19-00002.png (a) Using the symmetry of the arrangement, determine the direction of the electric field at the center of the square in Figure 18.53, given that q_a = q_b = -1.00 \mu C and q_c = q_d = +1.00 \mu C . (b) Calculate the magnitude of the electric field at the location of q, given that the square is 5.00 cm on a side. https://seo-videos.collegephysicsanswers.com/ch18/pe46/ed1ch18pe19.mp4 251 292 4 2018-06-07 yes 2018-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-point-charges-are-brought-closer-together-increasing-force-between-them Two point charges are brought closer together, increasing the force… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe13/thumbs-ed1ch18pe27-00002.png Two point charges are brought closer together, increasing the force between them by a factor of 25. By what factor was their separation decreased? https://seo-videos.collegephysicsanswers.com/ch18/pe13/ed1ch18pe27.mp4 58 440 4.3 2018-06-07 yes 2018-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-two-equal-charges-each-1-c-each-are-separated-air-distance-1-km-what If two equal charges each of 1 C each are separated in air by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe15/thumbs-ed1ch18pe29-00002.png If two equal charges each of 1 C each are separated in air by a distance of 1 km, what is the magnitude of the force acting between them? You will see that even at a distance as large as 1 km, the repulsive force is substantial because 1 C is a very significant amount of charge. https://seo-videos.collegephysicsanswers.com/ch18/pe15/ed1ch18pe29.mp4 30 181 2.5 2018-06-07 yes 2018-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/simple-and-common-technique-accelerating-electrons-shown-figure-1855-where-there A simple and common technique for accelerating electrons is shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe53/thumbs-ed1ch18pe53-00002.png A simple and common technique for accelerating electrons is shown in Figure 18.55, where there is a uniform electric field between two plates. Electrons are released, usually from a hot filament, near the negative plate, and there is a small hole in the positive plate that allows the electrons to continue moving. (a) Calculate the acceleration of the electron if the field strength is 2.50 x 10^4 N/C . (b) Explain why the electron will not be pulled back to the positive plate once it moves through the hole. https://seo-videos.collegephysicsanswers.com/ch18/pe53/ed1ch18pe53.mp4 188 260 4 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/point-charges-250-mutextrmc-and-450-mutextrmc-are-placed-0500-m-apart-what-point Point charges of 25.0 \mu C and 45.0 \mu C are placed 0.500 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe55/thumbs-ed1ch18pe55-00002.png Point charges of 25.0 \mu C and 45.0 \mu C are placed 0.500 m apart. (a) At what point along the line between them is the electric field zero? (b) What is the electric field halfway between them? https://seo-videos.collegephysicsanswers.com/ch18/pe55/ed1ch18pe55.mp4 341 229 3 2018-06-12 yes 2018-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/type-cuckoo-clock-keeps-time-having-mass-bouncing-spring-usually-something-cute A type of cuckoo clock keeps time by having a mass bouncing on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe13/thumbs-ed1ch16pe13-00002.png A type of cuckoo clock keeps time by having a mass bouncing on a spring, usually something cute like a cherub in a chair. What force constant is needed to produce a period of 0.500 s for a 0.0150-kg mass? https://seo-videos.collegephysicsanswers.com/ch16/pe13/ed1ch16pe13.mp4 57 329 4.3 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0500-kg-mass-suspended-spring-oscillates-period-150-s-how-much-mass-must-be A 0.500-kg mass suspended from a spring oscillates with a period of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe15/thumbs-ed1ch16pe15-00002.png A 0.500-kg mass suspended from a spring oscillates with a period of 1.50 s. How much mass must be added to the object to change the period to 2.00 s? https://seo-videos.collegephysicsanswers.com/ch16/pe15/ed1ch16pe15.mp4 129 703 5 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/awhat-maximum-velocity-850-kg-person-bouncing-bathroom-scale-having-force (a)What is the maximum velocity of an 85.0-kg person bouncing on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe37/thumbs-ed1ch16pe37-00002.png (a)What is the maximum velocity of an 85.0-kg person bouncing on a bathroom scale having a force constant of 1.50 x 10^6 N/m , if the amplitude of the bounce is 0.200 cm? (b) What is the maximum energy stored in the spring? https://seo-videos.collegephysicsanswers.com/ch16/pe37/ed1ch16pe37.mp4 55 153 4.5 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/length-nylon-rope-which-mountain-climber-suspended-has-force-constant-140-times The length of nylon rope from which a mountain climber is suspended… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe35/thumbs-ed1ch16pe35-00002.png The length of nylon rope from which a mountain climber is suspended has a force constant of 1.40 x 10^4 N/m . (a) What is the frequency at which he bounces, given his mass plus the mass of his equipment are 90.0 kg? (b) How much would this rope stretch to break the climber’s fall if he free-falls 2.00 m before the rope runs out of slack? Hint: Use conservation of energy. (c) Repeat both parts of this problem in the situation where twice this length of nylon rope is used. https://seo-videos.collegephysicsanswers.com/ch16/pe35/ed1ch16pe35.mp4 429 494 4.4 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-earthquake-shakes-you-frequency-100-hz-and-gets-another-city-840 What is the wavelength of an earthquake that shakes you with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe53/thumbs-ed1ch16pe53-00002.png What is the wavelength of an earthquake that shakes you with a frequency of 10.0 Hz and gets to another city 84.0 km away in 12.0 s? https://seo-videos.collegephysicsanswers.com/ch16/pe53/ed1ch16pe53.mp4 47 204 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fahrenheit-temperature-person-390circtextrmc-fever What is the Fahrenheit temperature of a person with a 39.0° C fever? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe01/thumbs-ed1ch13pe01-00002.png What is the Fahrenheit temperature of a person with a 39.0° C fever? https://d1igkeoc1zsqhw.cloudfront.net/ch13/pe01/ed1ch13pe01.mp4 24 217 3 2018-06-27 no 2018-06-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/conserve-energy-room-temperatures-are-kept-680circtextrmf-winter-and To conserve energy, room temperatures are kept at 68.0° F in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe03/ed1ch13pe03b-thumbnail.jpg To conserve energy, room temperatures are kept at 68.0° F in the winter and 78.0° F in the summer. What are these temperatures on the Celsius scale? https://seo-videos.collegephysicsanswers.com/ch13/pe03/ed1ch13pe03b.mp4 41 120 2.7 2024-01-11 yes 2024-01-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-helium-filled-balloons-are-used-lift-scientific-equipment-high-altitudes Large helium-filled balloons are used to lift scientific equipment to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe25/thumbs-ed1ch13pe25-00002.png Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0^circ C and rises to an altitude where its volume is twenty times the original volume and its temperature is -50.0° C ? (b) What is the gauge pressure? (Assume atmospheric pressure is constant.) https://seo-videos.collegephysicsanswers.com/ch13/pe25/ed1ch13pe25.mp4 185 443 4.5 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bicycle-tire-has-pressure-700-times-105-nm2-temperature-180circtextrmc-and A bicycle tire has a pressure of 7.00 x 10^5 N/m ^2 at a temperature… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe33/thumbs-ed1ch13pe33-00002.png A bicycle tire has a pressure of 7.00 x 10^5 N/m ^2 at a temperature of 18.0° C and contains 2.00 L of gas. What will its pressure be if you let out an amount of air that has a volume of 100 cm ^3 at atmospheric pressure? Assume tire temperature and volume remain constant. https://seo-videos.collegephysicsanswers.com/ch13/pe33/ed1ch13pe33.mp4 193 223 4.6 2018-06-30 yes 2018-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-gauge-pressure-250circtextrmc-car-tire-containing-360-mol-gas-300-l-volume (a) What is the gauge pressure in a 25.0° C car tire containing 3.60… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe37/thumbs-ed1ch13pe37-00002.png (a) What is the gauge pressure in a 25.0° C car tire containing 3.60 mol of gas in a 30.0 L volume? (b) What will its gauge pressure be if you add 1.00 L of gas originally at atmospheric pressure and 25.0° C ? Assume the temperature returns to 25.0° C and the volume remains constant. https://seo-videos.collegephysicsanswers.com/ch13/pe37/ed1ch13pe37.mp4 226 132 2.3 2018-06-30 yes 2018-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-kinetic-energy-joules-hydrogen-atoms-5500circtextrmc-surface-sun-b (a) What is the average kinetic energy in joules of hydrogen atoms on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe41/thumbs-ed1ch13pe41-00002.png (a) What is the average kinetic energy in joules of hydrogen atoms on the 5500° C surface of the Sun? (b) What is the average kinetic energy of helium atoms in a region of the solar corona where the temperature is 6.00 x 10^5 K ? https://seo-videos.collegephysicsanswers.com/ch13/pe41/ed1ch13pe41.mp4 52 121 4 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-speeds-electron-and-negative-hydrogen-ion-one-having-extra-electron Find the ratio of speeds of an electron and a negative hydrogen ion… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe01/thumbs-ed1ch19pe01-00002.png Find the ratio of speeds of an electron and a negative hydrogen ion (one having an extra electron) accelerated through the same voltage, assuming non-relativistic final speeds. Take the mass of the hydrogen ion to be 1.67 x 10^{-27} kg . https://d1igkeoc1zsqhw.cloudfront.net/ch19/pe01/ed1ch19pe01.mp4 178 340 4.8 2018-07-27 no 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-0500-g-raindrops-thunderhead-are-100-cm-apart-when-they-each-acquire-100-mc (a) Two 0.500 g raindrops in a thunderhead are 1.00 cm apart when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe65/thumbs-ed1ch18pe65-00002.png (a) Two 0.500 g raindrops in a thunderhead are 1.00 cm apart when they each acquire 1.00 mC charges. Find their acceleration. (b) What is unreasonable about this result? (c) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch18/pe65/ed1ch18pe65.mp4 176 43 2018-06-13 yes 2018-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-be-accelerated-uniform-electric-field-having-strength-200-times-106-vm An electron is to be accelerated in a uniform electric field having a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe23/thumbs-ed1ch19pe23-00002.png An electron is to be accelerated in a uniform electric field having a strength of 2.00 x 10^6 V/m . (a) What energy in keV is given to the electron if it is accelerated through 0.400 m? (b) Over what distance would it have to be accelerated to increase its energy by 50.0 GeV? https://seo-videos.collegephysicsanswers.com/ch19/pe23/ed1ch19pe23.mp4 164 360 5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-energy-stored-100textrm-mutextrmf-capacitor-heart-defibrillator-charged-900 (a) What is the energy stored in the 10.0 \mu F capacitor of a heart… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe63/thumbs-ed1ch19pe63-00002.png (a) What is the energy stored in the 10.0 \mu F capacitor of a heart defibrillator charged to 9.00 x 10^3 V ? (b) Find the amount of stored charge. https://seo-videos.collegephysicsanswers.com/ch19/pe63/ed1ch19pe63.mp4 52 331 4.7 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-heat-transfer-required-raise-temperature-0750-kg-aluminum-pot (a) How much heat transfer is required to raise the temperature of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe13/thumbs-ed1ch14pe13-00002.png (a) How much heat transfer is required to raise the temperature of a 0.750-kg aluminum pot containing 2.50 kg of water from 30.6° C to the boiling point and then boil away 0.750 kg of water? (b) How long does this take if the rate of heat transfer is 500 W? 1 watt = 1 joule / second (1W = 1 J/s). https://seo-videos.collegephysicsanswers.com/ch14/pe13/ed1ch14pe13.mp4 160 410 3.5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-objects-x-and-y-attract-each-other-which-following-will-be-false-x-has If objects X and Y attract each other, which of the following will be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap03/thumbs-ed1ch18ap03-00002.png If objects X and Y attract each other, which of the following will be false? (a) X has positive charge and Y has negative charge.(b) X has negative charge and Y has positive charge.(c) X and Y both have positive charge.(d) X is neutral and Y has a charge. https://seo-videos.collegephysicsanswers.com/ch18/ap03/ed1ch18ap03.mp4 71 2 2018-06-14 yes 2018-06-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1859-four-equal-charges-q-lie-corners-square-fifth-charge-q-mass-m (a) In Figure 18.59, four equal charges q lie on the corners of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe63/thumbs-ed1ch18pe63-00002.png (a) In Figure 18.59, four equal charges q lie on the corners of a square. A fifth charge Q is on a mass m directly above the center of the square, at a height equal to the length d of one side of the square. Determine the magnitude of q in terms of Q , m , and d , if the Coulomb force is to equal the weight of m. (b) Is this equilibrium stable or unstable? Discuss. https://seo-videos.collegephysicsanswers.com/ch18/pe63/ed1ch18pe63.mp4 570 106 5 2018-06-13 yes 2018-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/system-does-180-times-108-j-work-while-750-times-108-j-heat-transfer-occurs A system does 1.80 x 10^8 J of work while 7.50 x 10^8 J of heat… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe03/thumbs-ed1ch15pe03-00002.png A system does 1.80 x 10^8 J of work while 7.50 x 10^8 J of heat transfer occurs to the environment. What is the change in internal energy of the system assuming no other changes (such as in temperature or by the addition of fuel)? https://seo-videos.collegephysicsanswers.com/ch15/pe03/ed1ch15pe03.mp4 51 150 2.3 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/woman-climbing-washington-monument-metabolizes-600-times-102-kj-food-energy-if (a) A woman climbing the Washington Monument metabolizes 6.00 x 10^2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe09/thumbs-ed1ch15pe09-00002.png (a) A woman climbing the Washington Monument metabolizes 6.00 x 10^2 kJ of food energy. If her efficiency is 18.0%, how much heat transfer occurs to the environment to keep her temperature constant? (b) Discuss the amount of heat transfer found in (a). Is it consistent with the fact that you quickly warm up when exercising? https://seo-videos.collegephysicsanswers.com/ch15/pe09/ed1ch15pe09.mp4 180 114 3.8 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-electrostatics-force-between-two-charges-f-which-following-true-about Suppose that the electrostatics force between two charges is F. Which… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap27/thumbs-ed1ch18ap27-00002.png Suppose that the electrostatics force between two charges is F. Which of the following is true about the gravitational force between the particles? (a) It will be 3.25 x 10^{−38} F.(b) It will be 3.25 x 10^{38} F.(c) It will be equal to F.(d) It is not possible to determine the gravitational force as the masses of the particles are not given. https://seo-videos.collegephysicsanswers.com/ch18/ap27/ed1ch18ap27.mp4 27 4 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-coefficient-performance-ideal-heat-pump-has-heat-transfer-cold-temperature What is the coefficient of performance of an ideal heat pump that has… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe37/thumbs-ed1ch15pe37-00002.png What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold temperature of -25.0° C to a hot temperature of 40.0° C ? https://seo-videos.collegephysicsanswers.com/ch15/pe37/ed1ch15pe37.mp4 82 73 4.2 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-particles-charges-2q-and-q-are-separated-distance-r-2q-particle-has-electric Two particles with charges +2q and +q are separated by a distance r.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap31/thumbs-ed1ch18ap31-00002.png Two particles with charges +2q and +q are separated by a distance r. The +2q particle has an electric field E at distance r and exerts a force F on the +q particle. What is the electric field of the +q particle at the same distance and what force does it exert on the +2q particle? (a) E/2, F/2(b) E, F/2(c) E/2, F(d) E,F https://seo-videos.collegephysicsanswers.com/ch18/ap31/ed1ch18ap31.mp4 69 8 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/direction-electric-field-negative-charge-inward-both-positive-and-negative The direction of the electric field of a negative charge is (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap33/thumbs-ed1ch18ap33-00002.png The direction of the electric field of a negative charge is (a) inward for both positive and negative charges.(b) outward for both positive and negative charges.(c) inward for other positive charges and outward for other negative charges.(d) outward for other positive charges and inward for other negative charges. https://seo-videos.collegephysicsanswers.com/ch18/ap33/ed1ch18ap33.mp4 78 2 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-positively-charged-particle-exerts-inward-force-another-particle-p-what When a positively charged particle exerts an inward force on another… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap35/thumbs-ed1ch18ap35-00002.png When a positively charged particle exerts an inward force on another particle P, what will be the charge of P? (a) positive(b) negative(c) neutral(d) cannot be determined https://seo-videos.collegephysicsanswers.com/ch18/ap35/ed1ch18ap35.mp4 74 2 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-value-magnetic-flux-coil-2-figure-2356-due-coil-1 What is the value of the magnetic flux at coil 2 in Figure 23.56 due… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe01/thumbs-ed1ch23pe01-00002.png What is the value of the magnetic flux at coil 2 in Figure 23.56 due to coil 1? https://d1igkeoc1zsqhw.cloudfront.net/ch23/pe01/ed1ch23pe01.mp4 153 245 4.5 2018-10-17 no 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/four-objects-each-charge-q-are-held-fixed-square-sides-length-d-shown-figure Four objects, each with charge +q, are held fixed on a square with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/ap39/thumbs-ed1ch18ap39-00002.png Four objects, each with charge +q, are held fixed on a square with sides of length d, as shown in Figure 18.66. Objects X and Z are at the midpoints of the sides of the square. The electrostatic force exerted by object W on object X is F. What is the magnitude of force exerted by object W on Z? (a) F/7(b) F/5(c) F/3(d) F/2 https://seo-videos.collegephysicsanswers.com/ch18/ap39/ed1ch18ap39.mp4 132 8 2018-06-15 yes 2018-06-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-2358-what-are-directions-currents-coils-1-2-and-3-assume-coils Referring to Figure 23.58, what are the directions of the currents in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe05/thumbs-ed1ch23pe05-00002.png Referring to Figure 23.58, what are the directions of the currents in coils 1, 2, and 3 (assume that the coils are lying in the plane of the circuit): (a) When the switch is first closed? (b) When the switch has been closed for a long time? (c) Just after the switch is opened? https://seo-videos.collegephysicsanswers.com/ch23/pe05/ed1ch23pe05.mp4 406 166 3.6 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/emf-induced-rotating-1000-turn-200-cm-diameter-coil-earths-500-times-10-5-t An emf is induced by rotating a 1000-turn, 20.0 cm diameter coil in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe11/thumbs-ed1ch23pe11-00002.png An emf is induced by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s 5.00 x 10^{-5} T magnetic field. What average emf is induced, given the plane of the coil is originally perpendicular to the Earth’s field and is rotated to be parallel to the field in 10.0 ms? https://seo-videos.collegephysicsanswers.com/ch23/pe11/ed1ch23pe11.mp4 139 251 4.8 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/jet-airplane-750-m-wingspan-flying-280-ms-what-emf-induced-between-wing-tips-if (a) A jet airplane with a 75.0 m wingspan is flying at 280 m/s. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe17/thumbs-ed1ch23pe17-00002.png (a) A jet airplane with a 75.0 m wingspan is flying at 280 m/s. What emf is induced between wing tips if the vertical component of the Earth’s field is 3.00 x 10^{-5} T ? (b) Is an emf of this magnitude likely to have any consequences? Explain. https://seo-videos.collegephysicsanswers.com/ch23/pe17/ed1ch23pe17.mp4 48 177 4 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angular-velocity-rpm-will-peak-voltage-generator-be-480-v-if-its-500-turn At what angular velocity in rpm will the peak voltage of a generator… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe29/thumbs-ed1ch23pe29-00002.png At what angular velocity in rpm will the peak voltage of a generator be 480 V, if its 500-turn, 8.00 cm diameter coil rotates in a 0.250 T field? https://seo-videos.collegephysicsanswers.com/ch23/pe29/ed1ch23pe29b.mp4 134 164 3.2 2024-01-17 yes 2024-01-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-voltage-output-transformer-used-rechargeable-flashlight-batteries-if-its (a) What is the voltage output of a transformer used for rechargeable… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe47/thumbs-ed1ch23pe47-00002.png (a) What is the voltage output of a transformer used for rechargeable flashlight batteries, if its primary has 500 turns, its secondary 4 turns, and the input voltage is 120 V? (b) What input current is required to produce a 4.00 A output? (c) What is the power input? https://seo-videos.collegephysicsanswers.com/ch23/pe47/ed1ch23pe47.mp4 99 218 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rlc-series-circuit-has-250-omega-resistor-100-mu-textrmh-inductor-and-800-mu-1 An RLC series circuit has a 2.50 \Omega resistor, a 100 \mu H … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe103/thumbs-ed1ch23pe103-00002.png An RLC series circuit has a 2.50 \Omega resistor, a 100 \mu H inductor, and an 80.0 \mu F capacitor. (a) Find the power factor at f = 120 Hz . (b) What is the phase angle at 120 Hz? (c) What is the average power at 120 Hz? (d) Find the average power at the circuit’s resonant frequency. https://seo-videos.collegephysicsanswers.com/ch23/pe103/ed1ch23pe103.mp4 199 43 3.3 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequency-will-300-mh-inductor-have-reactance-100-omega At what frequency will a 30.0 mH inductor have a reactance of 100… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe79/thumbs-ed1ch23pe79-00002.png At what frequency will a 30.0 mH inductor have a reactance of 100 \Omega? https://seo-videos.collegephysicsanswers.com/ch23/pe79/ed1ch23pe79.mp4 33 53 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-sun-suddenly-turned-we-would-not-know-it-until-its-light-stopped-coming-how If the Sun suddenly turned off, we would not know it until its light… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe17/thumbs-ed1ch24pe17-00002.png If the Sun suddenly turned off, we would not know it until its light stopped coming. How long would that be, given that the Sun is 1.50 x 10^{11} m away? https://seo-videos.collegephysicsanswers.com/ch24/pe17/ed1ch24pe17.mp4 37 58 3.8 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-man-stands-front-mirror-shown-figure-2550-his-eyes-are-165-m-above-floor Suppose a man stands in front of a mirror as shown in Figure 25.50.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe01/thumbs-ed1ch25pe01-00002.png Suppose a man stands in front of a mirror as shown in Figure 25.50. His eyes are 1.65 m above the floor, and the top of his head is 0.13 m higher. Find the height above the floor of the top and bottom of the smallest mirror in which he can see both the top of his head and his feet. How is this distance related to the man’s height? https://d1igkeoc1zsqhw.cloudfront.net/ch25/pe01/ed1ch25pe01b.mp4 211 317 2.8 2024-01-16 no 2024-01-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/components-some-computers-communicate-each-other-through-optical-fibers-having Components of some computers communicate with each other through… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe11/thumbs-ed1ch25pe11-00002.png Components of some computers communicate with each other through optical fibers having an index of refraction n = 1.55. What time in nanoseconds is required for a signal to travel 0.200 m through such a fiber? https://seo-videos.collegephysicsanswers.com/ch25/pe11/ed1ch25pe11.mp4 59 207 2.8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-focal-length-makeup-mirror-produces-magnification-150-when-persons-face-120 What is the focal length of a makeup mirror that produces a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe57/thumbs-ed1ch25pe57-00002.png What is the focal length of a makeup mirror that produces a magnification of 1.50 when a person’s face is 12.0 cm away? Explicitly show how you follow the steps in the Problem-Solving Strategy for Mirrors. https://seo-videos.collegephysicsanswers.com/ch25/pe57/ed1ch25pe57.mp4 112 263 4 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/print-many-books-averages-350-mm-height-how-high-image-print-retina-when-book (a) The print in many books averages 3.50 mm in height. How high is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe03/thumbs-ed1ch26pe03-00002.png (a) The print in many books averages 3.50 mm in height. How high is the image of the print on the retina when the book is held 30.0 cm from the eye? (b) Compare the size of the print to the sizes of rods and cones in the fovea and discuss the possible details observable in the letters. (The eye-brain system can perform better because of interconnections and higher order image processing.) https://seo-videos.collegephysicsanswers.com/ch26/pe03/ed1ch26pe03.mp4 237 195 3.5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-near-point-person-whose-eyes-have-accommodated-power-535-d What is the near point of a person whose eyes have an accommodated… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe07/thumbs-ed1ch26pe07-00002.png What is the near point of a person whose eyes have an accommodated power of 53.5 D? https://seo-videos.collegephysicsanswers.com/ch26/pe07/ed1ch26pe07.mp4 68 167 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-distance-between-two-slits-produces-first-minimum-410-nm-violet-light-angle Find the distance between two slits that produces the first minimum… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe09/thumbs-ed1ch27pe09-00002.png Find the distance between two slits that produces the first minimum for 410-nm violet light at an angle of 45.0° https://seo-videos.collegephysicsanswers.com/ch27/pe09/ed1ch27pe09.mp4 80 157 3.8 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-angle-third-order-maximum-580-nm-wavelength-yellow-light-falling Calculate the angle for the third-order maximum of 580-nm wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe07/thumbs-ed1ch27pe07-00002.png Calculate the angle for the third-order maximum of 580-nm wavelength yellow light falling on double slits separated by 0.100 mm. https://seo-videos.collegephysicsanswers.com/ch27/pe07/ed1ch27pe07.mp4 65 152 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-first-order-maximum-pure-wavelength-light-falling-double-slit-angle-100circ (a) If the first-order maximum for pure-wavelength light falling on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe17/thumbs-ed1ch27pe17-00002.png (a) If the first-order maximum for pure-wavelength light falling on a double slit is at an angle of 10.0°, at what angle is the second-order maximum? (b) What is the angle of the first minimum? (c) What is the highest-order maximum possible here? https://seo-videos.collegephysicsanswers.com/ch27/pe17/ed1ch27pe17.mp4 262 140 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-highest-order-maximum-400-nm-light-falling-double-slits-separated-250 What is the highest-order maximum for 400-nm light falling on double… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe13/thumbs-ed1ch27pe13-00002.png What is the highest-order maximum for 400-nm light falling on double slits separated by 25.0 \mu m . https://seo-videos.collegephysicsanswers.com/ch27/pe13/ed1ch27pe13.mp4 104 61 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-first-minimum-550-nm-light-falling-single-slit-width (a) At what angle is the first minimum for 550-nm light falling on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe43/thumbs-ed1ch27pe43-00002.png (a) At what angle is the first minimum for 550-nm light falling on a single slit of width https://seo-videos.collegephysicsanswers.com/ch27/pe43/ed1ch27pe43.mp4 81 165 4.6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-would-axis-polarizing-filter-need-make-direction-polarized-light What angle would the axis of a polarizing filter need to make with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe87/thumbs-ed1ch27pe87-00002.png What angle would the axis of a polarizing filter need to make with the direction of polarized light of intensity 1.00 kW/m ^2 to reduce the intensity to 10.0 W/m ^2? https://seo-videos.collegephysicsanswers.com/ch27/pe87/ed1ch27pe87.mp4 73 99 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-gamma-if-v-0250c-b-if-v-0500c (a) What is \gamma if v = 0.250c ? (b) If v = 0.500c ? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe01/thumbs-ed1ch28pe01-00002.png (a) What is \gamma if v = 0.250c ? (b) If v = 0.500c ? https://d1igkeoc1zsqhw.cloudfront.net/ch28/pe01/ed1ch28pe01.mp4 62 241 5 2019-01-25 no 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particles-called-pi-mesons-are-produced-accelerator-beams-if-these-particles Particles called \pi-mesons are produced by accelerator beams. If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe03/thumbs-ed1ch28pe03-00002.png Particles called \pi-mesons are produced by accelerator beams. If these particles travel at 2.70 x 10^8 m/s and live 2.60 x 10^{-8} s when at rest relative to an observer, how long do they live as viewed in the laboratory? https://seo-videos.collegephysicsanswers.com/ch28/pe03/ed1ch28pe03.mp4 86 231 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/physicist-watching-15-kg-orangutan-zoo-swing-lazily-tire-end-rope-he-physicist A physicist is watching a 15-kg orangutan at a zoo swing lazily in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe03/thumbs-ed1ch29pe03-00002.png A physicist is watching a 15-kg orangutan at a zoo swing lazily in a tire at the end of a rope. He (the physicist) notices that each oscillation takes 3.00 s and hypothesizes that the energy is quantized. (a) What is the difference in energy in joules between allowed oscillator states? (b) What is the value of n for a state where the energy is 5.00 J? (c) Can the quantization be observed? https://seo-videos.collegephysicsanswers.com/ch29/pe03/ed1ch29pe03.mp4 145 102 4.5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/libr-molecule-oscillates-frequency-17-times-1013-hz-what-difference-energy-ev A LiBr molecule oscillates with a frequency of 1.7 x 10^{13} Hz . (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe01/thumbs-ed1ch29pe01-00002.png A LiBr molecule oscillates with a frequency of 1.7 x 10^{13} Hz . (a) What is the difference in energy in eV between allowed oscillator states? (b) What is the approximate value of n for a state having an energy of 1.0 eV? https://d1igkeoc1zsqhw.cloudfront.net/ch29/pe01/ed1ch29pe01.mp4 140 295 4.3 2019-02-07 no 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-energy-joules-and-ev-photons-radio-waves-fm-station-has-900-mhz-broadcast (a) Find the energy in joules and eV of photons in radio waves from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe21/thumbs-ed1ch29pe21-00002.png (a) Find the energy in joules and eV of photons in radio waves from an FM station that has a 90.0-MHz broadcast frequency. (b) What does this imply about the number of photons per second that the radio station must broadcast? https://seo-videos.collegephysicsanswers.com/ch29/pe21/ed1ch29pe21.mp4 93 189 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-velocity-does-proton-have-600-fm-wavelength-about-size-nucleus-assume At what velocity does a proton have a 6.00-fm wavelength (about the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe51/thumbs-ed1ch29pe51-00002.png At what velocity does a proton have a 6.00-fm wavelength (about the size of a nucleus)? Assume the proton is nonrelativistic. (1 femtometer = 10^{-15} m . ) https://seo-videos.collegephysicsanswers.com/ch29/pe51/ed1ch29pe51.mp4 53 103 4 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wavelength-4653textrm-mutextrmm-observed-hydrogen-spectrum-transition-ends-nf-5 A wavelength of 4.653 \mu m is observed in a hydrogen spectrum for a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe19/thumbs-ed1ch30pe19-00002.png A wavelength of 4.653 \mu m is observed in a hydrogen spectrum for a transition that ends in the n_f = 5 level. What was n_i for the initial level of the electron? https://seo-videos.collegephysicsanswers.com/ch30/pe19/ed1ch30pe19.mp4 144 230 4.4 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/infants-pulse-rate-measured-be-130-pm-5-beatsmin-what-percent-uncertainty An infant's pulse rate is measured to be 130 ± 5 beats/min . What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe14/thumbs-ed1ch01pe14-00002.png An infant's pulse rate is measured to be 130 ± 5 beats/min . What is the percent uncertainty in this measurement? https://seo-videos.collegephysicsanswers.com/ch01/pe14/ed1ch01pe14.mp4 75 204 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-significant-figures-are-numbers-99-and-100-b-if-uncertainty-each-number (a) How many significant figures are in the numbers 99 and 100? (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe18/thumbs-ed1ch01pe18-00002.png (a) How many significant figures are in the numbers 99 and 100? (b) If the uncertainty in each number is 1, what is the percent uncertainty in each? (c) Which is a more meaningful way to express the accuracy of these two numbers, significant figures or percent uncertainties? https://seo-videos.collegephysicsanswers.com/ch01/pe18/ed1ch01pe18.mp4 87 197 2.4 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/persons-blood-pressure-measured-be-120-pm-2-mm-hg-what-its-percent-uncertainty-b (a) A person's blood pressure is measured to be 120 ± 2 mm Hg . What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe20/thumbs-ed1ch01pe20-00002.png (a) A person's blood pressure is measured to be 120 ± 2 mm Hg . What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg? https://seo-videos.collegephysicsanswers.com/ch01/pe20/ed1ch01pe20.mp4 150 359 4.5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-approximate-number-atoms-bacterium-assume-average-mass-atom-bacterium Calculate the approximate number of atoms in a bacterium. Assume that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe32/thumbs-ed1ch01pe32-00002.png Calculate the approximate number of atoms in a bacterium. Assume that the average mass of an atom in the bacterium is ten times the mass of a hydrogen atom. (Hint: The mass of a hydrogen atom is on the order of 10 x 10^{-27} kg and the mass of a bacterium is on the order of 10 x 10^{-15} kg ) https://seo-videos.collegephysicsanswers.com/ch01/pe32/ed1ch01pe32.mp4 92 279 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/land-west-san-andreas-fault-southern-california-moving-average-velocity-about-6 Land west of the San Andreas fault in southern California is moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe08/thumbs-ed1ch02pe08-00002.png Land west of the San Andreas fault in southern California is moving at an average velocity of about 6 cm/y northwest relative to land east of the fault. Los Angeles is west of the fault and may thus someday be at the same latitude as San Francisco, which is east of the fault. How far in the future will this occur if the displacement to be made is 590 km northwest, assuming the motion remains constant? https://seo-videos.collegephysicsanswers.com/ch02/pe08/ed1ch02pe08.mp4 100 399 4 2019-06-05 yes 2019-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/powerful-motorcycle-can-accelerate-rest-268-m-s-100-kmh-only-390-s-what-its A powerful motorcycle can accelerate from rest to 26.8 m/ s (100… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe28/thumbs-ed1ch02pe28-00002.png A powerful motorcycle can accelerate from rest to 26.8 m/ s (100 km/h) in only 3.90 s. (a) What is its average acceleration? (b) How far does it travel in that time? https://seo-videos.collegephysicsanswers.com/ch02/pe28/ed1ch02pe28.mp4 153 557 4.3 2019-06-06 yes 2019-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/swimmer-bounces-straight-diving-board-and-falls-feet-first-pool-she-starts A swimmer bounces straight up from a diving board and falls feet… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe46/thumbs-ed1ch02pe46-00002.png A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/ s, and her takeoff point is 1.80 m above the pool. (a) How long are her feet in the air? (b) What is her highest point above the board? (c) What is her velocity when her feet hit the water? https://seo-videos.collegephysicsanswers.com/ch02/pe46/ed1ch02pe46.mp4 433 797 4 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bicycle-racer-sprints-end-race-clinch-victory-racer-has-initial-velocity-115-ms A bicycle racer sprints at the end of a race to clinch a victory. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe38/thumbs-ed1ch02pe38-00002.png A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 11.5 m/s and accelerates at the rate of 0.500 m/s ^2 for 7.00 s. (a) What is his final velocity? (b) The racer continues at this velocity to the finish line. If he was 300 m from the finish line when he started to accelerate, how much time did he save? (c) One other racer was 5.00 m ahead when the winner started to accelerate, but he was unable to accelerate, and traveled at 11.8 m/s until the finish line. How far ahead of him (in meters and in seconds) did the winner finish? https://seo-videos.collegephysicsanswers.com/ch02/pe38/ed1ch02pe38.mp4 695 418 2.8 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/object-dropped-height-750-m-above-ground-level-determine-distance-traveled An object is dropped from a height of 75.0 m above ground level. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe52/thumbs-ed1ch02pe52-00002.png An object is dropped from a height of 75.0 m above ground level. (a) Determine the distance traveled during the first second. (b) Determine the final velocity at which the object hits the ground. (c) Determine the distance traveled during the last second of motion before hitting the ground. https://seo-videos.collegephysicsanswers.com/ch02/pe52/ed1ch02pe52.mp4 330 390 4 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/soft-tennis-ball-dropped-hard-floor-height-150-m-and-rebounds-height-110-m A soft tennis ball is dropped onto a hard floor from a height of 1.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe58/thumbs-ed1ch02pe58-00002.png A soft tennis ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.10 m. (a) Calculate its velocity just before it strikes the floor. (b) Calculate its velocity just after it leaves the floor on its way back up. (c) Calculate its acceleration during contact with the floor if that contact lasts 3.50 ms (3.50 x 10^{-3} s ) . (d) How much did the ball compress during its collision with the floor, assuming the floor is absolutely rigid? https://seo-videos.collegephysicsanswers.com/ch02/pe58/ed1ch02pe58.mp4 494 267 2.4 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/another-airplane-flying-jet-stream-blowing-450-ms-direction-20circ-south-east (a) Another airplane is flying in a jet stream that is blowing at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe60/thumbs-ed1ch03pe60-00002.png (a) Another airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction 20° south of east (as in Exercise 3.58). Its direction of motion relative to the Earth is 45.0° south of west, while its direction of travel relative to the air is 5.00° south of west. What is the airplane's speed relative to the air mass? (b) What is the airplane's speed relative to the Earth? https://seo-videos.collegephysicsanswers.com/ch03/pe60/ed1ch03pe60.mp4 753 152 5 2019-09-20 yes 2019-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ship-sailing-gulf-stream-heading-250circ-west-north-speed-400-ms-relative-water A ship sailing in the Gulf Stream is heading 25.0° west of north at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe66/thumbs-ed1ch03pe66-00002.png A ship sailing in the Gulf Stream is heading 25.0° west of north at a speed of 4.00 m/s relative to the water. Its velocity relative to the Earth is 4.80 m/s 5.00° west of north. What is the velocity of the Gulf Stream? (The velocity obtained is typical for the Gulf Stream a few hundred kilometers off the east coast of the United States.) https://seo-videos.collegephysicsanswers.com/ch03/pe66/ed1ch03pe66.mp4 549 194 3.7 2019-09-23 yes 2019-09-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-438-shows-superhero-and-trusty-sidekick-hanging-motionless-rope Figure 4.38 shows Superhero and Trusty Sidekick hanging motionless… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe34/thumbs-ed1ch04pe34-00002.png Figure 4.38 shows Superhero and Trusty Sidekick hanging motionless from a rope. Superhero’s mass is 90.0 kg, while Trusty Sidekick’s is 55.0 kg, and the mass of the rope is negligible. (a) Draw a free-body diagram of the situation showing all forces acting on Superhero, Trusty Sidekick, and the rope. (b) Find the tension in the rope above Superhero. (c) Find the tension in the rope between Superhero and Trusty Sidekick. Indicate on your free-body diagram the system of interest used to solve each part. https://seo-videos.collegephysicsanswers.com/ch04/pe34/ed1ch04pe34.mp4 300 486 4.8 2019-09-23 yes 2019-09-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/space-debris-left-old-satellites-and-their-launchers-becoming-hazard-other Space debris left from old satellites and their launchers is becoming… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe48/thumbs-ed1ch06pe48-00002.png Space debris left from old satellites and their launchers is becoming a hazard to other satellites. (a) Calculate the speed of a satellite in an orbit 900 km above Earth's surface. (b) Suppose a loose rivet is in an orbit of the same radius that intersects the satellite's orbit at an angle of 90° relative to Earth. What is the velocity of the rivet relative to the satellite just before striking it? (c) Given the rivet is 3.00 mm in size, how long will its collision with the satellite last? (d) If its mass is 0.500 g, what is the average force it exerts on the satellite? (e) How much energy in joules is generated by the collision? (The satellite's velocity does not change appreciably, because its mass is much greater than the rivet's.) https://seo-videos.collegephysicsanswers.com/ch06/pe48/ed1ch06pe48.mp4 739 152 5 2019-09-26 yes 2019-09-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-when-kicking-football-kicker-rotates-his-leg-about-hip-joint Integrated Concepts When kicking a football, the kicker rotates his… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe08/thumbs-ed1ch06pe08-00002.png Integrated Concepts When kicking a football, the kicker rotates his leg about the hip joint. (a) If the velocity of the tip of the kicker's shoe is 35.0 m/s and the hip joint is 1.05 m from the tip of the shoe, what is the shoe tip's angular velocity? (b) The shoe is in contact with the initially stationary 0.500 kg football for 20.0 ms. What average force is exerted on the football to give it a velocity of 20.0 m/s? (c) Find the maximum range of the football, neglecting air resistance. https://seo-videos.collegephysicsanswers.com/ch06/pe08/ed1ch06pe08.mp4 214 525 4.4 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pole-figure-522-900circ-bend-power-line-and-therefore-subjected-more-shear-force The pole in Figure 5.22 is at a 90.0° bend in a power line and is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe44/thumbs-ed1ch05pe44-00002.png The pole in Figure 5.22 is at a 90.0° bend in a power line and is therefore subjected to more shear force than poles in straight parts of the line. The tension in each line is 4.00 x 10^{4} N , at the angles shown. The pole is 15.0 m tall, has an 18.0 cm diameter, and can be considered to have half the stiffness of hardwood. (a) Calculate the compression of the pole. (b) Find how much it bends and in what direction. (c) Find the tension in a guy wire used to keep the pole straight if it is attached to the top of the pole at an angle of 30.0° with the vertical. (Clearly, the guy wire must be in the opposite direction of the bend.) https://seo-videos.collegephysicsanswers.com/ch05/pe44/ed1ch05pe44.mp4 567 82 4 2019-10-07 yes 2019-10-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-components-vtot-along-set-perpendicular-axes-rotated-30circ Find the components of v_{tot} along a set of perpendicular axes… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe12/thumbs-ed1ch03pe12-00002.png Find the components of v_{tot} along a set of perpendicular axes rotated 30° counterclockwise relative to those in Figure 3.55. https://seo-videos.collegephysicsanswers.com/ch03/pe12/ed1ch03pe12.mp4 121 234 5 2019-10-11 yes 2019-10-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-soccer-player-kicks-ball-distance-30-m-toward-goal-find-initial-speed Suppose a soccer player kicks the ball from a distance 30 m toward… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe42/thumbs-ed1ch03pe42-00002.png Suppose a soccer player kicks the ball from a distance 30 m toward the goal. Find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the initial direction to be 40° above the horizontal. https://seo-videos.collegephysicsanswers.com/ch03/pe42/ed1ch03pe42.mp4 489 659 4.2 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/free-throw-line-basketball-457-m-15-ft-basket-which-305-m-10-ft-above-floor The free throw line in basketball is 4.57 m (15 ft) from the basket,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe44/thumbs-ed1ch03pe44-00002.png The free throw line in basketball is 4.57 m (15 ft) from the basket, which is 3.05 m (10 ft) above the floor. A player standing on the free throw line throws the ball with an initial speed of 8.15 m/s, releasing it at a height of 2.44 m (8 ft) above the floor. At what angle above the horizontal must the ball be thrown to exactly hit the basket? Note that most players will use a large initial angle rather than a flat shot because it allows for a larger margin of error. Explicitly show how you follow the steps involved in solving projectile motion problems. https://seo-videos.collegephysicsanswers.com/ch03/pe44/ed1ch03pe44.mp4 719 249 4 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-landing-after-spectacular-somersault-400-kg-gymnast-decelerates-pushing When landing after a spectacular somersault, a 40.0-kg gymnast… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe26/thumbs-ed1ch04pe26-00002.png When landing after a spectacular somersault, a 40.0-kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion. https://seo-videos.collegephysicsanswers.com/ch04/pe26/ed1ch04pe26.mp4 137 529 4.2 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-force-piano-tuner-applies-stretch-steel-piano-wire-800-mm-if-wire Calculate the force a piano tuner applies to stretch a steel piano… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe36/thumbs-ed1ch05pe36-00002.png Calculate the force a piano tuner applies to stretch a steel piano wire 8.00 mm, if the wire is originally 0.850 mm in diameter and 1.35 m long. https://seo-videos.collegephysicsanswers.com/ch05/pe36/ed1ch05pe36.mp4 113 390 4.3 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/approximately-how-many-atoms-thick-cell-membrane-assuming-all-atoms-there Approximately how many atoms thick is a cell membrane, assuming all… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe33/thumbs-ed1ch01pe33-00002.png Approximately how many atoms thick is a cell membrane, assuming all atoms there average about twice the size of a hydrogen atom? https://seo-videos.collegephysicsanswers.com/ch01/pe33/ed1ch01pe33.mp4 179 100 4 2018-02-07 yes 2018-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/stokes-law-describes-sedimentation-particles-liquids-and-can-be-used-measure Stokes' law describes sedimentation of particles in liquids and can… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe28/thumbs-ed1ch05pe28-00002.png Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity. Particles in liquids achieve terminal velocity quickly. One can measure the time it takes for a particle to fall a certain distance and then use Stokes' law to calculate the viscosity of the liquid. Suppose a steel ball bearing (density 7.8 x 10^{3} kg/m ^3 , diameter 3.0 mm ) is dropped in a container of motor oil. It takes 12 s to fall a distance of 0.60 m. Calculate the viscosity of the oil. https://seo-videos.collegephysicsanswers.com/ch05/pe28/ed1ch05pe28.mp4 276 291 5 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/olympic-ice-skaters-are-able-spin-about-5-revs-what-their-angular-velocity Olympic ice skaters are able to spin at about 5 rev/s. (a) What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe16/thumbs-ed1ch06pe16-00002.png Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians per second? (b) What is the centripetal acceleration of the skater's nose if it is 0.120 m from the axis of rotation? (c) An exceptional skater named Dick Button was able to spin much faster in the 1950s than anyone since—at about 9 rev/ s. What was the centripetal acceleration of the tip of his nose, assuming it is at 0.120 m radius? https://seo-videos.collegephysicsanswers.com/ch06/pe16/ed1ch06pe16.mp4 58 257 4 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lacrosse-ball-thrown-net-end-stick-rotating-stick-and-forearm-about-elbow-if In lacrosse, a ball is thrown from a net on the end of a stick by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe06/thumbs-ed1ch06pe06-00002.png In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm about the elbow. If the angular velocity of the ball about the elbow joint is 30.0 rad/s and the ball is 1.30 m from the elbow joint, what is the velocity of the ball? https://seo-videos.collegephysicsanswers.com/ch06/pe06/ed1ch06pe06.mp4 31 228 5 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-centripetal-force-end-100-m-radius-wind-turbine-blade-rotating-05-revs Calculate the centripetal force on the end of a 100 m (radius) wind… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe24/thumbs-ed1ch06pe24-00002.png Calculate the centripetal force on the end of a 100 m (radius) wind turbine blade that is rotating at 0.5 rev/s. Assume the mass is 4 kg. https://seo-videos.collegephysicsanswers.com/ch06/pe24/ed1ch06pe24.mp4 86 576 4.6 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-strength-gravitational-force-strong-nuclear-force-b-what-ratio (a) What is the ratio of the strength of the gravitational force to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe53/thumbs-ed1ch04pe53-00002.png (a) What is the ratio of the strength of the gravitational force to that of the strong nuclear force? (b) What is the ratio of the strength of the gravitational force to that of the weak nuclear force? (c) What is the ratio of the strength of the gravitational force to that of the electromagnetic force? What do your answers imply about the influence of the gravitational force on atomic nuclei? https://seo-videos.collegephysicsanswers.com/ch04/pe53/ed1ch04pe53.mp4 61 101 5 2018-02-28 yes 2018-02-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-442-represents-racetrack-semicircular-sections-connected-straight **Figure 4.42** represents a racetrack with semicircular sections… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap01/thumbs-ed1ch04ap01-00002.png **Figure 4.42** represents a racetrack with semicircular sections connected by straight sections. Each section has length _d_, and markers along the track are spaced _d_/4 apart. Two people drive cars counterclockwise around the track, as shown. Car _X_ goes around the curves at constant speed _v_c, increases speed at constant acceleration for half of each straight section to reach a maximum speed of 2_v_c, then brakes at constant acceleration for the other half of each straight section to return to speed _v_c. Car _Y_ also goes around the curves at constant speed _v_c, increases its speed at constant acceleration for one-fourth of each straight section to reach the same maximum speed 2_v_c, stays at that speed for half of each straight section, then brakes at constant acceleration for the remaining fourth of each straight section to return to speed _v_c.(a) On the figures below, draw an arrow showing the direction of the net force on each of the cars at the positions noted by the dots. If the net force is zero at any position, label the dot with 0. Description of **Figure 4.43**:(a) The first dot on the left center of the track is at the same position as it is on the Car X track.(b) The second dot is just slight to the right of the Car X dot (less than a dash) past three perpendicular hash marks moving to the right.(c) The third dot is about one and two-thirds perpendicular hash marks to the right of the center top perpendicular has mark.(d) The fourth dot is in the same position as the Car X figure (one perpendicular hash mark above the center right perpendicular hash mark).(e) The fifth dot is about one and two-third perpendicular hash marks to the right of the center bottom perpendicular hash mark.(f) The sixth dot is in the same position as the Car Y dot (one and two third perpendicular hash marks to the left of the center bottom hash mark).(b) i. Indicate which car, if either, completes one trip around the track in less time, and justify your answer qualitatively without using equations.ii. Justify https://seo-videos.collegephysicsanswers.com/ch04/ap01/ed1ch04ap01.mp4 729 29 2018-02-28 yes 2018-02-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hawk-accelerates-it-glides-air-does-force-causing-acceleration-come-hawk-itself A hawk accelerates as it glides in the air. Does the force causing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap03/thumbs-ed1ch04ap03-00002.png A hawk accelerates as it glides in the air. Does the force causing the acceleration come from the hawk itself? Explain. https://seo-videos.collegephysicsanswers.com/ch04/ap03/ed1ch04ap03.mp4 115 16 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-force-elbow-joint-example-94-407-n-stated-text Verify that the force in the elbow joint in Example 9.4 is 407 N, as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe26/thumbs-ed1ch09pe26-00002.png Verify that the force in the elbow joint in Example 9.4 is 407 N, as stated in the text. https://seo-videos.collegephysicsanswers.com/ch09/pe26/ed1ch09pe26.mp4 235 127 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-true-earth-exerts-force-due-gravity-your-body-and-your-body Which of the following is true?(a) Earth exerts a force due to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap07/thumbs-ed1ch04ap07-00002.png Which of the following is true?(a) Earth exerts a force due to gravity on your body, andyour body exerts a smaller force on the Earth, becauseyour mass is smaller than the mass of the Earth.(b) The Moon orbits the Earth because the Earth exerts aforce on the Moon and the Moon exerts a force equal inmagnitude and direction on the Earth.(c) A rocket taking off exerts a force on the Earth equal tothe force the Earth exerts on the rocket.(d) An airplane cruising at a constant speed is not affectedby gravity. https://seo-videos.collegephysicsanswers.com/ch04/ap07/ed1ch04ap07.mp4 295 10 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/current-river-exerts-force-90-n-balloon-floating-river-wind-exerts-force-130-n The current in a river exerts a force of 9.0 N on a balloon floating… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap09/thumbs-ed1ch04ap09-00002.png The current in a river exerts a force of 9.0 N on a balloon floating in the river. A wind exerts a force of 13.0 N on the balloon in the opposite direction. Draw a free-body diagram to show the forces acting on the balloon. Use your free-body diagram to predict the effect on the balloon. https://seo-videos.collegephysicsanswers.com/ch04/ap09/ed1ch04ap09.mp4 36 12 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-minimum-coefficient-friction-needed-car-negotiate-unbanked-500-m (a) Calculate the minimum coefficient of friction needed for a car to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe32/thumbs-ed1ch06pe32-00002.png (a) Calculate the minimum coefficient of friction needed for a car to negotiate an unbanked 50.0 m radius curve at 30.0 m/ s. (b) What is unreasonable about the result? (c) Which premises are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch06/pe32/ed1ch06pe32.mp4 108 207 4.2 2019-11-22 yes 2019-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/parachutists-fall-earth-determined-two-opposing-forces-gravitational-force-539-n A parachutist’s fall to Earth is determined by two opposing forces. A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap11/thumbs-ed1ch04ap11-00002.png A parachutist’s fall to Earth is determined by two opposing forces. A gravitational force of 539 N acts on the parachutist. After 2 s, she opens her parachute and experiences an air resistance of 615 N. At what speed is the parachutist falling after 10 s? https://seo-videos.collegephysicsanswers.com/ch04/ap11/ed1ch04ap11.mp4 270 26 2018-03-03 yes 2018-03-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/landscaper-easing-wheelbarrow-full-soil-down-hill-define-system-you-would A landscaper is easing a wheelbarrow full of soil down a hill. Define… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap13/thumbs-ed1ch04ap13-00002.png A landscaper is easing a wheelbarrow full of soil down a hill. Define the system you would analyze and list all the forces that you would need to include to calculate the acceleration of the wheelbarrow. https://seo-videos.collegephysicsanswers.com/ch04/ap13/ed1ch04ap13.mp4 95 12 2018-03-03 yes 2018-03-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-skater-has-mass-40-kg-and-her-partners-mass-50-kg-she-pushes-against-ice A figure skater has a mass of 40 kg and her partner's mass is 50 kg.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap15/thumbs-ed1ch04ap15-00002.png A figure skater has a mass of 40 kg and her partner's mass is 50 kg. She pushes against the ice with a force of 120 N, causing her and her partner to move forward. Calculate the pair’s acceleration. Assume that all forces opposing the motion, such as friction and air resistance, total 5.0 N. https://seo-videos.collegephysicsanswers.com/ch04/ap15/ed1ch04ap15.mp4 67 2 2018-03-03 yes 2018-03-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cable-raises-mass-1200-kg-acceleration-13-ms2-what-force-tension-cable A cable raises a mass of 120.0 kg with an acceleration of 1.3 m/s ^2.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap17/thumbs-ed1ch04ap17-00002.png A cable raises a mass of 120.0 kg with an acceleration of 1.3 m/s ^2. What force of tension is in the cable? https://seo-videos.collegephysicsanswers.com/ch04/ap17/ed1ch04ap17.mp4 102 14 5 2018-03-03 yes 2018-03-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-teams-are-engaging-tug-war-rope-suddenly-snaps-which-statement-true-about Two teams are engaging in a tug–of-war. The rope suddenly snaps.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap19/thumbs-ed1ch04ap19-00002.png Two teams are engaging in a tug–of-war. The rope suddenly snaps. Which statement is true about the forces involved?(a) The forces exerted by the two teams are no longer equal; the teams will accelerate in opposite directions as a result.(b) The forces exerted by the players are no longer balanced by the force of tension in the rope; the teams will accelerate in opposite directions as a result.(c) The force of gravity balances the forces exerted by the players; the teams will fall as a result(d) The force of tension in the rope is transferred to the players; the teams will accelerate in opposite directions as a result. https://seo-videos.collegephysicsanswers.com/ch04/ap19/ed1ch04ap19.mp4 161 4 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-times-longer-mean-life-extremely-unstable-atomic-nucleus-lifetime-human How many times longer than the mean life of an extremely unstable… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe31/thumbs-ed1ch01pe31-00002.png How many times longer than the mean life of an extremely unstable atomic nucleus is the lifetime of a human? (Hint: The lifetime of an unstable atomic nucleus is on the order of 10^{-22} s .) https://seo-videos.collegephysicsanswers.com/ch01/pe31/ed1ch01pe31.mp4 152 147 3.5 2018-02-07 yes 2018-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/draw-free-body-diagram-represent-forces-acting-kite-string-floating-stationary Draw a free-body diagram to represent the forces acting on a kite on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap21/thumbs-ed1ch04ap21-00002.png Draw a free-body diagram to represent the forces acting on a kite on a string that is floating stationary in the air. Label the forces in your diagram. https://seo-videos.collegephysicsanswers.com/ch04/ap21/ed1ch04ap21.mp4 24 8 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/toboggan-two-riders-has-total-mass-850-kg-third-person-pushing-toboggan-force A toboggan with two riders has a total mass of 85.0 kg. A third… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap23/thumbs-ed1ch04ap23-00002.png A toboggan with two riders has a total mass of 85.0 kg. A third person is pushing the toboggan with a force of 42.5 N at the top of a hill with an angle of 15°. The force of friction on the toboggan is 31.0 N. Which statement describes an accurate free-body diagram to represent the situation?(a) An arrow of magnitude 10.5 N points down the slope of the hill.(b) An arrow of magnitude 833 N points straight down.(c) An arrow of magnitude 833 N points perpendicular to the slope of the hill.(d) An arrow of magnitude 73.5 N points down the slope of the hill. https://seo-videos.collegephysicsanswers.com/ch04/ap23/ed1ch04ap23.mp4 115 8 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-statement-true-about-drawing-free-body-diagrams-drawing-free-body-diagram Which statement is true about drawing free-body diagrams?(a) Drawing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap25/thumbs-ed1ch04ap25-00002.png Which statement is true about drawing free-body diagrams?(a) Drawing a free-body diagram should be the last step in solving a problem about forces.(b) Drawing a free-body diagram helps you compare forces quantitatively.(c) The forces in a free-body diagram should always balance.(d) Drawing a free-body diagram can help you determine the net force. https://seo-videos.collegephysicsanswers.com/ch04/ap25/ed1ch04ap25.mp4 16 6 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-people-push-boulder-try-move-it-mass-boulder-825-kg-one-person-pushes-north Two people push on a boulder to try to move it. The mass of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap27/thumbs-ed1ch04ap27-00002.png Two people push on a boulder to try to move it. The mass of the boulder is 825 kg. One person pushes north with a force of 64 N. The other pushes west with a force of 38 N. Predict the magnitude of the acceleration of the boulder. Assume that friction is negligible. https://seo-videos.collegephysicsanswers.com/ch04/ap27/ed1ch04ap27.mp4 38 8 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-phenomenon-correctly-describes-direction-and-magnitude-normal-forces Which phenomenon correctly describes the direction and magnitude of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap29/thumbs-ed1ch04ap29-00002.png Which phenomenon correctly describes the direction and magnitude of normal forces?(a) electromagnetic attraction(b) electromagnetic repulsion(c) gravitational attraction(d) gravitational repulsion https://seo-videos.collegephysicsanswers.com/ch04/ap29/ed1ch04ap29.mp4 114 8 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gravitational-force-weakest-four-basic-forces-which-case-can-electromagnetic The gravitational force is the weakest of the four basic forces. In… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap33/thumbs-ed1ch04ap33-00002.png The gravitational force is the weakest of the four basic forces. In which case can the electromagnetic, strong, and weak forces be ignored because the gravitational force is so strongly dominant?(a) a person jumping on a trampoline(b) a rocket blasting off from Earth(c) a log rolling down a hill(d) all of the above https://seo-videos.collegephysicsanswers.com/ch04/ap33/ed1ch04ap33.mp4 78 8 2018-03-02 yes 2018-03-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-household-air-conditioner-may-consume-150-kw-power-what-cost-operating-air A large household air conditioner may consume 15.0 kW of power. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe34/thumbs-ed1ch07pe34-00002.png A large household air conditioner may consume 15.0 kW of power. What is the cost of operating this air conditioner 3.00 h per day for 30.0 d if the cost of electricity is \$0.110 per kW \cdot h ? https://seo-videos.collegephysicsanswers.com/ch07/pe34/ed1ch07pe34.mp4 63 330 4.2 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-power-output-needed-950-kg-car-climb-200circ-slope-constant-300-ms Calculate the power output needed for a 950-kg car to climb a 2.00°… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe42/thumbs-ed1ch07pe42-00002.png Calculate the power output needed for a 950-kg car to climb a 2.00° slope at a constant 30.0 m/s while encountering wind resistance and friction totaling 600 N. Explicitly show how you follow the steps in the Problem- Solving Strategies for Energy. https://seo-videos.collegephysicsanswers.com/ch07/pe42/ed1ch07pe42.mp4 160 162 5 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-number-cells-hummingbird-assuming-mass-average-cell-ten-times-mass (a) Calculate the number of cells in a hummingbird assuming the mass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe35/thumbs-ed1ch01pe35-00002.png (a) Calculate the number of cells in a hummingbird assuming the mass of an average cell is ten times the mass of a bacterium. (b) Making the same assumption, how many cells are there in a human? https://seo-videos.collegephysicsanswers.com/ch01/pe35/ed1ch01pe35.mp4 77 130 5 2018-02-07 yes 2018-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-force-woman-figure-745-exerts-do-push-constant-speed-taking-all-data (a) Calculate the force the woman in Figure 7.45 exerts to do a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe60/ed1ch07pe60b-thumbnail.jpg (a) Calculate the force the woman in Figure 7.45 exerts to do a push-up at constant speed, taking all data to be known to three digits. (b) How much work does she do if her center of mass rises 0.240 m? (c) What is her useful power output if she does 25 push-ups in 1 min? (Should work done lowering her body be included? See the discussion of useful work in Work, Energy, and Power in Humans. https://seo-videos.collegephysicsanswers.com/ch07/pe60/ed1ch07pe60b.mp4 207 144 2 2023-12-21 yes 2023-12-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0450-kg-hammer-moving-horizontally-700-ms-when-it-strikes-nail-and-comes-rest A 0.450-kg hammer is moving horizontally at 7.00 m/s when it strikes… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe18/thumbs-ed1ch08pe18-00002.png A 0.450-kg hammer is moving horizontally at 7.00 m/s when it strikes a nail and comes to rest after driving the nail 1.00 cm into a board. (a) Calculate the duration of the impact. (b) What was the average force exerted on the nail? https://seo-videos.collegephysicsanswers.com/ch08/pe18/ed1ch08pe18.mp4 249 435 5 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-exercise-518-contestant-pulling-block-ice-rope-over-his-shoulder-same Repeat Exercise 5.18 with the contestant pulling the block of ice… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe19/thumbs-ed1ch05pe19-00002.png Repeat Exercise 5.18 with the contestant pulling the block of ice with a rope over his shoulder at the same angle above the horizontal as shown in Figure 5.21 (b).**Exercise 5.18**:A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake as shown in Figure 5.21(a). (a) Calculate the minimum force F he must exert to get the block moving. (b) What is the magnitude of its acceleration once it starts to move, if that force is maintained? https://seo-videos.collegephysicsanswers.com/ch05/pe19/ed1ch05pe19.mp4 408 832 3.5 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-strong-inept-shot-putter-puts-shot-straight-vertically-initial-velocity-110 A very strong, but inept, shot putter puts the shot straight up… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe48/thumbs-ed1ch02pe48-00002.png A very strong, but inept, shot putter puts the shot straight up vertically with an initial velocity of 11.0 m/s. How long does he have to get out of the way if the shot was released at a height of 2.20 m, and he is 1.80 m tall? https://seo-videos.collegephysicsanswers.com/ch02/pe48/ed1ch02pe48.mp4 133 360 5 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/freight-train-consists-two-800times-105textrm-kg-engines-and-45-cars-average A freight train consists of two 8.00 x 10^{5} kg engines and 45 cars… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe16/thumbs-ed1ch05pe16-00002.png A freight train consists of two 8.00 x 10^{5} kg engines and 45 cars with average masses of 5.50 x 10^{5} kg . (a) What force must each engine exert backward on the track to accelerate the train at a rate of 5.00 x 10^{-2} m/s ^2 if the force of friction is 7.50 x 10^{5} N , assuming the engines exert identical forces? This is not a large frictional force for such a massive system. Rolling friction for trains is small, and consequently trains are very energy-efficient transportation systems. (b) What is the magnitude of the force in the coupling between the 37th and 38th cars (this is the force each exerts on the other), assuming all cars have the same mass and that friction is evenly distributed among all of the cars and engines? https://seo-videos.collegephysicsanswers.com/ch05/pe16/ed1ch05pe16.mp4 366 227 3 2019-11-18 yes 2019-11-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/military-rifles-have-mechanism-reducing-recoil-forces-gun-person-firing-it Military rifles have a mechanism for reducing the recoil forces of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe14/thumbs-ed1ch08pe14-00002.png Military rifles have a mechanism for reducing the recoil forces of the gun on the person firing it. An internal part recoils over a relatively large distance and is stopped by damping mechanisms in the gun. The larger distance reduces the average force needed to stop the internal part. (a) Calculate the recoil velocity of a 1.00-kg plunger that directly interacts with a 0.0200-kg bullet fired at 600 m/s from the gun. (b) If this part is stopped over a distance of 20.0 cm, what average force is exerted upon it by the gun? (c) Compare this to the force exerted on the gun if the bullet is accelerated to its velocity in 10.0 ms (milliseconds). https://seo-videos.collegephysicsanswers.com/ch08/pe14/ed1ch08pe14.mp4 286 189 2.7 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/30000-kg-freight-car-coasting-0850-ms-negligible-friction-under-hopper-dumps A 30,000-kg freight car is coasting at 0.850 m/s with negligible… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe36/thumbs-ed1ch08pe36-00002.png A 30,000-kg freight car is coasting at 0.850 m/s with negligible friction under a hopper that dumps 110,000 kg of scrap metal into it. (a) What is the final velocity of the loaded freight car? (b) How much kinetic energy is lost? https://seo-videos.collegephysicsanswers.com/ch08/pe36/ed1ch08pe36.mp4 158 402 4.2 2020-03-05 yes 2020-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/battleship-600times-107textrm-kg-and-originally-rest-fires-1100-kg-artillery A battleship that is 6.00 x 10^{7} kg and is originally at rest… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe34/thumbs-ed1ch08pe34-00002.png A battleship that is 6.00 x 10^{7} kg and is originally at rest fires a 1100-kg artillery shell horizontally with a velocity of 575 m/s. (a) If the shell is fired straight aft (toward the rear of the ship), there will be negligible friction opposing the ship’s recoil. Calculate its recoil velocity. (b) Calculate the increase in internal kinetic energy (that is, for the ship and the shell). This energy is less than the energy released by the gun powder—significant heat transfer occurs. https://seo-videos.collegephysicsanswers.com/ch08/pe34/ed1ch08pe34.mp4 222 351 4 2020-03-05 yes 2020-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-acceleration-5000-kg-rocket-taking-moon-where-acceleration-due-gravity-only What is the acceleration of a 5000-kg rocket taking off from the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe54/thumbs-ed1ch08pe54-00002.png What is the acceleration of a 5000-kg rocket taking off from the Moon, where the acceleration due to gravity is only 1.6 m/s ^2 , if the rocket expels 8.00 kg of gas per second at an exhaust velocity of 2.20 x 10^{3} m/s ? https://seo-videos.collegephysicsanswers.com/ch08/pe54/ed1ch08pe54.mp4 207 111 3 2020-03-06 yes 2020-03-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/even-when-head-held-erect-figure-940-its-center-mass-not-directly-over-principal Even when the head is held erect, as in Figure 9.40, its center of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe32/thumbs-ed1ch09pe32-00002.png Even when the head is held erect, as in Figure 9.40, its center of mass is not directly over the principal point of support (the atlanto-occipital joint). The muscles at the back of the neck should therefore exert a force to keep the head erect. That is why your head falls forward when you fall asleep in the class. (a) Calculate the force exerted by these muscles using the information in the figure. (b) What is the force exerted by the pivot on the head? https://seo-videos.collegephysicsanswers.com/ch09/pe32/ed1ch09pe32.mp4 102 391 4.4 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-920-cg-pole-held-pole-vaulter-200-m-left-hand-and-hands-are-0700-m-apart In Figure 9.20, the cg of the pole held by the pole vaulter is 2.00 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe18/thumbs-ed1ch09pe18-00002.png In Figure 9.20, the cg of the pole held by the pole vaulter is 2.00 m from the left hand, and the hands are 0.700 m apart. Calculate the force exerted by (a) his right hand and (b) his left hand. (c) If each hand supports half the weight of the pole in Figure 9.18, show that the second condition for equilibrium (\tau_{ net }) is satisfied for a pivot other than the one located at the center of gravity of the pole. Explicitly show how you follow the steps in the Problem-Solving Strategy for static equilibrium described above. https://seo-videos.collegephysicsanswers.com/ch09/pe18/ed1ch09pe18.mp4 223 419 4.8 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-working-drafting-board-may-hold-her-head-shown-figure-939-requiring A person working at a drafting board may hold her head as shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe30/thumbs-ed1ch09pe30-00002.png A person working at a drafting board may hold her head as shown in Figure 9.39, requiring muscle action to support the head. The three major acting forces are shown. Calculate the direction and magnitude of the force supplied by the upper vertebrae F_ V to hold the head stationary, assuming that this force acts along a line through the center of mass as do the weight and muscle force. https://seo-videos.collegephysicsanswers.com/ch09/pe30/ed1ch09pe30.mp4 192 319 5 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/upper-leg-muscle-quadriceps-exerts-force-1250-n-which-carried-tendon-over The upper leg muscle (quadriceps) exerts a force of 1250 N, which is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe28/thumbs-ed1ch09pe28-00002.png The upper leg muscle (quadriceps) exerts a force of 1250 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in Figure 9.37. Find the direction and magnitude of the force exerted by the kneecap on the upper leg bone (the femur). https://seo-videos.collegephysicsanswers.com/ch09/pe28/ed1ch09pe28.mp4 297 547 4.3 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-needed-raise-250-kg-mower-distance-60-cm-above-ground-change-tire-if Suppose you needed to raise a 250-kg mower a distance of 6.0 cm above… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe20/thumbs-ed1ch09pe20-00002.png Suppose you needed to raise a 250-kg mower a distance of 6.0 cm above the ground to change a tire. If you had a 2.0-m long lever, where would you place the fulcrum if your force was limited to 300 N? https://seo-videos.collegephysicsanswers.com/ch09/pe20/ed1ch09pe20.mp4 157 431 4 2020-03-10 yes 2020-03-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-we-replace-40-kg-book-exercise-931-biceps-muscle-elastic-exercise-rope Suppose we replace the 4.0-kg book in [Exercise… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe36/thumbs-ed1ch09pe36-00002.png Suppose we replace the 4.0-kg book in [Exercise 9.31](/openstax-solutions/we-analyzed-biceps-muscle-example-angle-between-forearm-and-upper-arm-set-90circ) of the biceps muscle with an elastic exercise rope that obeys Hooke’s Law. Assume its force constant k = 600 N/m . (a) How much is the rope stretched (past equilibrium) to provide the same force F\_B as in this example? Assume the rope is held in the hand at the same location as the book. (b) What force is on the biceps muscle if the exercise rope is pulled straight up so that the forearm makes an angle of 25° with the horizontal? Assume the biceps muscle is still perpendicular to the forearm. https://seo-videos.collegephysicsanswers.com/ch09/pe36/ed1ch09pe36.mp4 271 68 2.5 2020-03-25 yes 2020-03-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/softball-pitcher-throws-arm-fully-extended-straight-elbow-fast-pitch-ball-leaves In softball, the pitcher throws with the arm fully extended (straight… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe34/thumbs-ed1ch10pe34-00002.png In softball, the pitcher throws with the arm fully extended (straight at the elbow). In a fast pitch the ball leaves the hand with a speed of 139 km/h. (a) Find the rotational kinetic energy of the pitcher’s arm given its moment of inertia is 0.720 kg \cdot m ^2 and the ball leaves the hand at a distance of 0.600 m from the pivot at the shoulder. (b) What force did the muscles exert to cause the arm to rotate if their effective perpendicular lever arm is 4.00 cm and the ball is 0.156 kg? https://seo-videos.collegephysicsanswers.com/ch10/pe34/ed1ch10pe34b.mp4 483 170 5 2024-01-10 yes 2024-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-pressure-exerted-bottom-0500-m-wide-0900-m-long-gas-tank-can-hold-500-kg What pressure is exerted on the bottom of a 0.500-m- wide by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe20/thumbs-ed1ch11pe20-00002.png What pressure is exerted on the bottom of a 0.500-m- wide by 0.900-m-long gas tank that can hold 50.0 kg of gasoline by the weight of the gasoline in it when it is full? https://seo-videos.collegephysicsanswers.com/ch11/pe20/ed1ch11pe20.mp4 43 129 4.3 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pressure-exerted-phonograph-needle-record-surprisingly-large-if-equivalent-100-g The pressure exerted by a phonograph needle on a record is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe12/thumbs-ed1ch11pe12-00002.png The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.00 g is supported by a needle, the tip of which is a circle 0.200 mm in radius, what pressure is exerted on the record in N/m ^2? https://seo-videos.collegephysicsanswers.com/ch11/pe12/ed1ch11pe12.mp4 74 237 2.7 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-si-unit-hrho-g-textrmnm2 Verify that the SI unit of h\rho g is N/m ^2. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe16/thumbs-ed1ch11pe16-00002.png Verify that the SI unit of h\rho g is N/m ^2. https://seo-videos.collegephysicsanswers.com/ch11/pe16/ed1ch11pe16.mp4 71 71 5 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/aqueous-humor-persons-eye-exerting-force-0300-n-110-cm2-area-cornea-what The aqueous humor in a person’s eye is exerting a force of 0.300 N on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe18/thumbs-ed1ch11pe18-00002.png The aqueous humor in a person’s eye is exerting a force of 0.300 N on the 1.10 cm ^2 area of the cornea. (a) What pressure is this in mm Hg? (b) Is this value within the normal range for pressures in the eye? https://seo-videos.collegephysicsanswers.com/ch11/pe18/ed1ch11pe18.mp4 78 128 3.6 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/250-kg-steel-gasoline-can-holds-200-l-gasoline-when-full-what-average-density A 2.50-kg steel gasoline can holds 20.0 L of gasoline when full. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe08/thumbs-ed1ch11pe08-00002.png A 2.50-kg steel gasoline can holds 20.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline? https://seo-videos.collegephysicsanswers.com/ch11/pe08/ed1ch11pe08.mp4 177 215 2.8 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fluid-device-shown-figure-1128-if-force-316-times-10-3textrm-n-and-length What fluid is in the device shown in Figure 11.28 if the force is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe60/thumbs-ed1ch11pe60-00002.png What fluid is in the device shown in Figure 11.28 if the force is 3.16 x 10^{-3} N and the length of the wire is 2.50 cm? Calculate the surface tension \gamma and find a likely match from Table 11.3. https://seo-videos.collegephysicsanswers.com/ch11/pe60/ed1ch11pe60.mp4 82 20 5 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-gauge-pressures-inside-200-cm-radius-bubbles-water-alcohol-and-soapy Calculate the gauge pressures inside 2.00-cm-radius bubbles of water,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe62/thumbs-ed1ch11pe62-00002.png Calculate the gauge pressures inside 2.00-cm-radius bubbles of water, alcohol, and soapy water. Which liquid forms the most stable bubbles, neglecting any effects of evaporation? https://seo-videos.collegephysicsanswers.com/ch11/pe62/ed1ch11pe62.mp4 127 40 5 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/blood-flowing-through-artery-radius-2-mm-rate-40-cms-determine-flow-rate-and Blood is flowing through an artery of radius 2 mm at a rate of 40… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe04/thumbs-ed1ch12pe04-00002.png Blood is flowing through an artery of radius 2 mm at a rate of 40 cm/s. Determine the flow rate and the volume that passes through the artery in a period of 30 s. https://seo-videos.collegephysicsanswers.com/ch12/pe04/ed1ch12pe04.mp4 74 280 4.4 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tungsten-light-bulb-filament-may-operate-2900-k-what-its-fahrenheit-temperature A tungsten light bulb filament may operate at 2900 K. What is its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe04/thumbs-ed1ch13pe04-00002.png A tungsten light bulb filament may operate at 2900 K. What is its Fahrenheit temperature? What is this on the Celsius scale? https://seo-videos.collegephysicsanswers.com/ch13/pe04/ed1ch13pe04.mp4 52 164 2.8 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-meter-stick-made-steel-and-one-made-invar-alloy-iron-and-nickel-are-same (a) Suppose a meter stick made of steel and one made of invar (an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe16/thumbs-ed1ch13pe16-00002.png (a) Suppose a meter stick made of steel and one made of invar (an alloy of iron and nickel) are the same length at 0° C . What is their difference in length at 22.0° C ? (b) Repeat the calculation for two 30.0-m-long surveyor’s tapes. https://seo-videos.collegephysicsanswers.com/ch13/pe16/ed1ch13pe16.mp4 176 99 4.8 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0250-kg-block-pure-material-heated-200circtextrmc-650circtextrmc-addition-435-kj A 0.250-kg block of a pure material is heated from 20.0° C to 65.0°… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe06/thumbs-ed1ch14pe06-00002.png A 0.250-kg block of a pure material is heated from 20.0° C to 65.0° C by the addition of 4.35 kJ of energy. Calculate its specific heat and identify the substance of which it is most likely composed. https://seo-videos.collegephysicsanswers.com/ch14/pe06/ed1ch14pe06.mp4 91 260 4.2 2020-05-15 yes 2020-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/formation-condensation-glass-ice-water-causes-ice-melt-faster-it-would-otherwise The formation of condensation on a glass of ice water causes the ice… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe14/thumbs-ed1ch14pe14-00002.png The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.00 g of condensation forms on a glass containing both water and 200 g of ice, how many grams of the ice will melt as a result? Assume no other heat transfer occurs. https://seo-videos.collegephysicsanswers.com/ch14/pe14/ed1ch14pe14.mp4 134 157 5 2020-05-15 yes 2020-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/number-kilocalories-food-determined-calorimetry-techniques-which-food-burned-and (a) The number of kilocalories in food is determined by calorimetry… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe08/thumbs-ed1ch14pe08-00002.png (a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9° C temperature increase? (b) Compare your answer to labeling information found on a package of peanuts and comment on whether the values are consistent. https://seo-videos.collegephysicsanswers.com/ch14/pe08/ed1ch14pe08.mp4 152 245 3.4 2020-05-15 yes 2020-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/engine-large-ship-does-200times-108textrm-j-work-efficiency-500-how-much-heat The engine of a large ship does 2.00 x 10^{8} J of work with an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe24/thumbs-ed1ch15pe24-00002.png The engine of a large ship does 2.00 x 10^{8} J of work with an efficiency of 5.00%. (a) How much heat transfer occurs to the environment? (b) How many barrels of fuel are consumed, if each barrel produces 6.00 x 10^{9} J of heat transfer when burned? https://seo-videos.collegephysicsanswers.com/ch15/pe24/ed1ch15pe24.mp4 123 152 4 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-your-heart-rate-150-beats-minute-during-strenuous-exercise-what-time-beat If your heart rate is 150 beats per minute during strenuous exercise,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe08/thumbs-ed1ch16pe08-00002.png If your heart rate is 150 beats per minute during strenuous exercise, what is the time per beat in units of seconds? https://seo-videos.collegephysicsanswers.com/ch16/pe08/ed1ch16pe08.mp4 34 157 4.3 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pendulum-cuckoo-clock-500-cm-long-what-its-frequency The pendulum on a cuckoo clock is 5.00 cm long. What is its frequency? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe26/thumbs-ed1ch16pe26-00002.png The pendulum on a cuckoo clock is 5.00 cm long. What is its frequency? https://seo-videos.collegephysicsanswers.com/ch16/pe26/ed1ch16pe26.mp4 63 76 5 2020-06-04 yes 2020-06-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-energy-must-shock-absorbers-1200-kg-car-dissipate-order-damp-bounce How much energy must the shock absorbers of a 1200-kg car dissipate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe42/thumbs-ed1ch16pe42-00002.png How much energy must the shock absorbers of a 1200-kg car dissipate in order to damp a bounce that initially has a velocity of 0.800 m/s at the equilibrium position? Assume the car returns to its original vertical position. https://seo-videos.collegephysicsanswers.com/ch16/pe42/ed1ch16pe42.mp4 102 84 5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radio-waves-transmitted-through-space-300times-108textrm-ms-voyager-spacecraft Radio waves transmitted through space at 3.00 x 10^{8} m/s by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe54/thumbs-ed1ch16pe54-00002.png Radio waves transmitted through space at 3.00 x 10^{8} m/s by the Voyager spacecraft have a wavelength of 0.120 m. What is their frequency? https://seo-videos.collegephysicsanswers.com/ch16/pe54/ed1ch16pe54.mp4 47 87 5 2020-06-06 yes 2020-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-large-housefly-30-m-away-you-makes-noise-400-db-what-noise-level-1000-flies If a large housefly 3.0 m away from you makes a noise of 40.0 dB,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe22/thumbs-ed1ch17pe22-00002.png If a large housefly 3.0 m away from you makes a noise of 40.0 dB, what is the noise level of 1000 flies at that distance, assuming interference has a negligible effect? https://seo-videos.collegephysicsanswers.com/ch17/pe22/ed1ch17pe22.mp4 214 102 5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequency-received-mouse-just-being-dispatched-hawk-flying-it-250-ms-and What frequency is received by a mouse just before being dispatched by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe32/thumbs-ed1ch17pe32-00002.png What frequency is received by a mouse just before being dispatched by a hawk flying at it at 25.0 m/s and emitting a screech of frequency 3500 Hz? Take the speed of sound to be 331 m/s. https://seo-videos.collegephysicsanswers.com/ch17/pe32/ed1ch17pe32.mp4 65 57 5 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequency-received-person-watching-oncoming-ambulance-moving-110-kmh-and (a) What frequency is received by a person watching an oncoming… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe30/thumbs-ed1ch17pe30-00002.png (a) What frequency is received by a person watching an oncoming ambulance moving at 110 km/h and emitting a steady 800-Hz sound from its siren? The speed of sound on this day is 345 m/s. (b) What frequency does she receive after the ambulance has passed? https://seo-videos.collegephysicsanswers.com/ch17/pe30/ed1ch17pe30.mp4 101 317 5 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-first-three-overtones-bassoon-has-fundamental-frequency-900-hz-it-open What are the first three overtones of a bassoon that has a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe44/thumbs-ed1ch17pe44-00002.png What are the first three overtones of a bassoon that has a fundamental frequency of 90.0 Hz? It is open at both ends. (The overtones of a real bassoon are more complex than this example, because its double reed makes it act more like a tube closed at one end.) https://seo-videos.collegephysicsanswers.com/ch17/pe44/ed1ch17pe44.mp4 91 58 5 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/crude-approximation-voice-production-consider-breathing-passages-and-mouth-be A crude approximation of voice production is to consider the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe52/thumbs-ed1ch17pe52-00002.png A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. (See Figure 17.29.) (a) What is the fundamental frequency if the tube is 0.240-m long, by taking air temperature to be 37.0° C ? (b) What would this frequency become if the person replaced the air with helium? Assume the same temperature dependence for helium as for air. https://seo-videos.collegephysicsanswers.com/ch17/pe52/ed1ch17pe52.mp4 152 92 3.8 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequencies-will-180-m-long-tube-produce-audible-range-200circtextrmc-if What frequencies will a 1.80-m-long tube produce in the audible range… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe54/thumbs-ed1ch17pe54-00002.png What frequencies will a 1.80-m-long tube produce in the audible range at 20.0° C if: (a) The tube is closed at one end? (b) It is open at both ends? https://seo-videos.collegephysicsanswers.com/ch17/pe54/ed1ch17pe54.mp4 216 34 3.7 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-net-charge-would-you-place-100-g-piece-sulfur-if-you-put-extra-electron-1 What net charge would you place on a 100 g piece of sulfur if you put… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe08/thumbs-ed1ch18pe08-00002.png What net charge would you place on a 100 g piece of sulfur if you put an extra electron on 1 in 10^{12} of its atoms? (Sulfur has an atomic mass of 32.1.) https://seo-videos.collegephysicsanswers.com/ch18/pe08/ed1ch18pe08.mp4 112 124 2.5 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-electric-field-location-qa-figure-1852-given-qb-qc-qd-200textrm-nc-q Find the electric field at the location of qa in Figure 18.52 given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe47/thumbs-ed1ch18pe20-00002.png Find the electric field at the location of qa in Figure 18.52 given that q_b = q_c = q_d = +2.00 nC , q = -1.00 nC , and the square is 20.0 cm on a side. https://seo-videos.collegephysicsanswers.com/ch18/pe47/ed1ch18pe20.mp4 537 163 4 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-apart-must-two-point-charges-750-nc-typical-static-electricity-be-have How far apart must two point charges of 75.0 nC (typical of static… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe14/thumbs-ed1ch18pe28-00002.png How far apart must two point charges of 75.0 nC (typical of static electricity) be to have a force of 1.00 N between them? https://seo-videos.collegephysicsanswers.com/ch18/pe14/ed1ch18pe28.mp4 69 294 3.8 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-repulsive-force-between-two-pith-balls-are-800-cm-apart-and-have-equal What is the repulsive force between two pith balls that are 8.00 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe10/thumbs-ed1ch18pe24-00002.png What is the repulsive force between two pith balls that are 8.00 cm apart and have equal charges of – 30.0 nC? https://seo-videos.collegephysicsanswers.com/ch18/pe10/ed1ch18pe24.mp4 67 337 3.9 2020-06-18 yes 2020-06-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-factor-must-you-change-distance-between-two-point-charges-change-force (a) By what factor must you change the distance between two point… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe18/thumbs-ed1ch18pe32-00002.png (a) By what factor must you change the distance between two point charges to change the force between them by a factor of 10? (b) Explain how the distance can either increase or decrease by this factor and still cause a factor of 10 change in the force. https://seo-videos.collegephysicsanswers.com/ch18/pe18/ed1ch18pe32.mp4 200 108 5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/earth-has-net-charge-produces-electric-field-approximately-150-nc-downward-its Earth has a net charge that produces an electric field of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe54/thumbs-ed1ch18pe54-00002.png Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface. (a) What is the magnitude and sign of the excess charge, noting the electric field of a conducting sphere is equivalent to a point charge at its center? (b) What acceleration will the field produce on a free electron near Earth's surface? (c) What mass object with a single extra electron will have its weight supported by this field? https://seo-videos.collegephysicsanswers.com/ch18/pe54/ed1ch18pe54.mp4 195 139 5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tire-has-tread-pattern-crevice-every-200-cm-each-crevice-makes-single-vibration A tire has a tread pattern with a crevice every 2.00 cm. Each crevice… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe11/thumbs-ed1ch16pe11-00002.png A tire has a tread pattern with a crevice every 2.00 cm. Each crevice makes a single vibration as the tire moves. What is the frequency of these vibrations if the car moves at 30.0 m/s? https://seo-videos.collegephysicsanswers.com/ch16/pe11/ed1ch16pe11.mp4 42 97 4 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-point-charges-q1-and-q2-are-300-m-apart-and-their-total-charge-20textrm Two point charges q_1 and q_2 are 3.00 m apart, and their total… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe26/thumbs-ed1ch18pe40-00002.png Two point charges q_1 and q_2 are 3.00 m apart, and their total charge is 20 \mu C . (a) If the force of repulsion between them is 0.075N, what are magnitudes of the two charges? (b) If one charge attracts the other with a force of 0.525N, what are the magnitudes of the two charges? Note that you may need to solve a quadratic equation to reach your answer. https://seo-videos.collegephysicsanswers.com/ch18/pe26/ed1ch18pe40.mp4 500 169 2.8 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-strength-electric-field-between-two-parallel-conducting-plates-separated What is the strength of the electric field between two parallel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe14/thumbs-ed1ch19pe14-00002.png What is the strength of the electric field between two parallel conducting plates separated by 1.00 cm and having a potential difference (voltage) between them of 1.50 x 10^{4} V ? https://seo-videos.collegephysicsanswers.com/ch19/pe14/ed1ch19pe14.mp4 40 270 4.1 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/voltage-across-membrane-forming-cell-wall-800-mv-and-membrane-900-nm-thick-what The voltage across a membrane forming a cell wall is 80.0 mV and the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe18/thumbs-ed1ch19pe18-00002.png The voltage across a membrane forming a cell wall is 80.0 mV and the membrane is 9.00 nm thick. What is the electric field strength? (The value is surprisingly large, but correct. Membranes are discussed in Capacitors and Dielectrics and Nerve Conduction—Electrocardiograms.) You may assume a uniform electric field. https://seo-videos.collegephysicsanswers.com/ch19/pe18/ed1ch19pe18.mp4 36 91 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-parallel-conducting-plates-are-separated-100-cm-and-one-them-taken-be-zero Two parallel conducting plates are separated by 10.0 cm, and one of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe20/thumbs-ed1ch19pe20-00002.png Two parallel conducting plates are separated by 10.0 cm, and one of them is taken to be at zero volts. (a) What is the electric field strength between them, if the potential 8.00 cm from the zero volt plate (and 2.00 cm from the other) is 450 V? (b) What is the voltage between the plates? https://seo-videos.collegephysicsanswers.com/ch19/pe20/ed1ch19pe20.mp4 73 141 4.2 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0500-cm-diameter-plastic-sphere-used-static-electricity-demonstration-has A 0.500 cm diameter plastic sphere, used in a static electricity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe24/thumbs-ed1ch19pe24-00002.png A 0.500 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 40.0 pC charge on its surface. What is the potential near its surface? https://seo-videos.collegephysicsanswers.com/ch19/pe24/ed1ch19pe24.mp4 69 210 4.8 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sphere-has-surface-uniformly-charged-100-c-what-distance-its-center-potential (a) A sphere has a surface uniformly charged with 1.00 C. At what… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe26/thumbs-ed1ch19pe26-00002.png (a) A sphere has a surface uniformly charged with 1.00 C. At what distance from its center is the potential 5.00 MV? (b) What does your answer imply about the practical aspect of isolating such a large charge? https://seo-videos.collegephysicsanswers.com/ch19/pe26/ed1ch19pe26.mp4 57 106 4.7 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nuclear-fission-nucleus-splits-roughly-half-what-potential-200times-10-14textrm In nuclear fission, a nucleus splits roughly in half. (a) What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe30/thumbs-ed1ch19pe30-00002.png In nuclear fission, a nucleus splits roughly in half. (a) What is the potential 2.00 x 10^{-14} m from a fragment that has 46 protons in it? (b) What is the potential energy in MeV of a similarly charged fragment at this distance? https://seo-videos.collegephysicsanswers.com/ch19/pe30/ed1ch19pe30.mp4 76 176 3.5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/120textrm-v-battery-operated-bottle-warmer-heats-500-g-glass-250times-102textrm A 12.0 V battery operated bottle warmer heats 50.0 g of glass, 2.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe08/thumbs-ed1ch19pe08-00002.png A 12.0 V battery operated bottle warmer heats 50.0 g of glass, 2.50 x 10^{2} g of baby formula, and 2.00 x 10^{2} g of aluminum from 20.0° C to 90.0° C . (a) How much charge is moved by the battery? (b) How many electrons per second flow if it takes 5.00 min to warm the formula? (Hint: Assume that the specific heat of baby formula is about the same as the specific heat of water.) https://seo-videos.collegephysicsanswers.com/ch19/pe08/ed1ch19pe08.mp4 240 128 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/doubly-charged-ion-accelerated-energy-320-kev-electric-field-between-two A doubly charged ion is accelerated to an energy of 32.0 keV by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe22/thumbs-ed1ch19pe22-00002.png A doubly charged ion is accelerated to an energy of 32.0 keV by the electric field between two parallel conducting plates separated by 2.00 cm. What is the electric field strength between the plates? https://seo-videos.collegephysicsanswers.com/ch19/pe22/ed1ch19pe22.mp4 163 218 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1934-shows-electric-field-lines-near-two-charges-q1-and-q2-first-having Figure 19.34 shows the electric field lines near two charges q_1 and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe38/thumbs-ed1ch19pe38-00002.png Figure 19.34 shows the electric field lines near two charges q_1 and q_2 , the first having a magnitude four times that of the second. Sketch the equipotential lines for these two charges, and indicate the direction of increasing potential. https://seo-videos.collegephysicsanswers.com/ch19/pe38/ed1ch19pe38.mp4 207 144 5 2020-06-26 yes 2020-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-charge-stored-parallel-plate-capacitor-metal-plates-each-area-100textrm-m2 What charge is stored on a parallel plate capacitor with metal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe48/thumbs-ed1ch19pe48-00002.png What charge is stored on a parallel plate capacitor with metal plates, each of area 1.00 m ^2, separated by 1.00 mm, when 3.00 x 10^{3} V is applied across it? https://seo-videos.collegephysicsanswers.com/ch19/pe48/ed1ch19pe48.mp4 90 133 4.3 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/open-heart-surgery-much-smaller-amount-energy-will-defibrillate-heart-what In open heart surgery, a much smaller amount of energy will… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe64/thumbs-ed1ch19pe64-00002.png In open heart surgery, a much smaller amount of energy will defibrillate the heart. (a) What voltage is applied to the 8.00 \mu F capacitor of a heart defibrillator that stores 40.0 J of energy? (b) Find the amount of stored charge. https://seo-videos.collegephysicsanswers.com/ch19/pe64/ed1ch19pe64.mp4 77 255 4.8 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-900-v-battery-200textrm-mutextrmf-capacitor-and-740textrm Suppose you have a 9.00 V battery, a 2.00 \mu F capacitor, and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe66/thumbs-ed1ch19pe66-00002.png Suppose you have a 9.00 V battery, a 2.00 \mu F capacitor, and a 7.40 \mu F capacitor. (a) Find the charge and energy stored if the capacitors are connected to the battery in series. (b) Do the same for a parallel connection. https://seo-videos.collegephysicsanswers.com/ch19/pe66/ed1ch19pe66.mp4 148 261 4.5 2020-07-01 yes 2020-07-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-current-through-spark-plug-moves-0300-mc-charge-how-long-does-spark-last The 200-A current through a spark plug moves 0.300 mC of charge. How… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe06/thumbs-ed1ch20pe06-00002.png The 200-A current through a spark plug moves 0.300 mC of charge. How long does the spark last? https://seo-videos.collegephysicsanswers.com/ch20/pe06/ed1ch20pe06.mp4 44 48 3.8 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-flows-through-bulb-300-v-flashlight-when-its-hot-resistance What current flows through the bulb of a 3.00-V flashlight when its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe18/thumbs-ed1ch20pe18-00002.png What current flows through the bulb of a 3.00-V flashlight when its hot resistance is 3.60 Omega ? https://seo-videos.collegephysicsanswers.com/ch20/pe18/ed1ch20pe18.mp4 27 94 4.3 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/14-gauge-copper-wire-has-diameter-1628-mm-what-magnitude-current-flows-when A 14-gauge copper wire has a diameter of 1.628 mm. What magnitude… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe16/thumbs-ed1ch20pe16-00002.png A 14-gauge copper wire has a diameter of 1.628 mm. What magnitude current flows when the drift velocity is 1.00 mm/s? (See [Example 20.3](https://openstax.org/books/college-physics/pages/20-1-current#fs-id2616778) for useful information.) https://seo-videos.collegephysicsanswers.com/ch20/pe16/ed1ch20pe16.mp4 102 122 4.2 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-flows-through-254-cm-diameter-rod-pure-silicon-200-cm-long-when What current flows through a 2.54-cm-diameter rod of pure silicon… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe28/thumbs-ed1ch20pe28-00002.png What current flows through a 2.54-cm-diameter rod of pure silicon that is 20.0 cm long, when 1.00 x 10^{3} V is applied to it? (Such a rod may be used to make nuclear- particle detectors, for example.) https://seo-videos.collegephysicsanswers.com/ch20/pe28/ed1ch20pe28.mp4 162 266 4.1 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-0100-mm-diameter-tungsten-filament-light-bulb-have-resistance-0200textrm If the 0.100-mm diameter tungsten filament in a light bulb is to have… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe26/thumbs-ed1ch20pe26-00002.png If the 0.100-mm diameter tungsten filament in a light bulb is to have a resistance of 0.200 \Omega at 20.0° C , how long should it be? https://seo-videos.collegephysicsanswers.com/ch20/pe26/ed1ch20pe26.mp4 133 318 3.8 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resistance-200-m-long-piece-12-gauge-copper-wire-having-2053-mm-diameter What is the resistance of a 20.0-m-long piece of 12-gauge copper wire… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe24/thumbs-ed1ch20pe24-00002.png What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter? https://seo-videos.collegephysicsanswers.com/ch20/pe24/ed1ch20pe24.mp4 106 380 4.7 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-example-203-wire-made-silver-and-given-there-one-free-electron-silver Repeat [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe14/thumbs-ed1ch20pe14-00002.png Repeat [Example 20.3](https://openstax.org/books/college-physics/pages/20-1-current#fs-id2616778), but for a wire made of silver and given there is one free electron per silver atom.**Example 20.3** Calculate the drift velocity of electrons in a 12-gauge copper wire (which has a diameter of 2.053 mm) carrying a 20.0-A current, given that there is one free electron per copper atom. (Household wiring often contains 12-gauge copper wire, and the maximum current allowed in such wire is usually 20 A.) https://seo-videos.collegephysicsanswers.com/ch20/pe14/ed1ch20pe14.mp4 217 86 4 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/resistor-made-nichrome-wire-used-application-where-its-resistance-cannot-change A resistor made of Nichrome wire is used in an application where its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe30/thumbs-ed1ch20pe30-00002.png A resistor made of Nichrome wire is used in an application where its resistance cannot change more than 1.00% from its value at 20.0° C . Over what temperature range can it be used? https://seo-videos.collegephysicsanswers.com/ch20/pe30/ed1ch20pe30.mp4 219 137 4.5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/charge-400-c-charge-passes-through-pocket-calculators-solar-cells-400-h-what A charge of 4.00 C of charge passes through a pocket calculator’s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe42/thumbs-ed1ch20pe42-00002.png A charge of 4.00 C of charge passes through a pocket calculator’s solar cells in 4.00 h. What is the power output, given the calculator’s voltage output is 3.00 V? (See Figure 20.40.) https://seo-videos.collegephysicsanswers.com/ch20/pe42/ed1ch20pe42.mp4 66 63 4.6 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/copper-wire-has-resistance-0500textrm-omega-200circtextrmc-and-iron-wire-has A copper wire has a resistance of 0.500 \Omega at 20.0° C , and an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe36/thumbs-ed1ch20pe36-00002.png A copper wire has a resistance of 0.500 \Omega at 20.0° C , and an iron wire has a resistance of 0.525 \Omega at the same temperature. At what temperature are their resistances equal? https://seo-videos.collegephysicsanswers.com/ch20/pe36/ed1ch20pe36.mp4 202 153 4.7 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-units-dfractextrmv2omega-1textrm-w-implied-equation-p-dfracv2r Show that the units \dfrac{ V ^2}{\Omega} = 1 W , as implied by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe46/thumbs-ed1ch20pe46-00002.png Show that the units \dfrac{ V ^2}{\Omega} = 1 W , as implied by the equation P = \dfrac{V^2}{R}. https://seo-videos.collegephysicsanswers.com/ch20/pe46/ed1ch20pe46.mp4 86 38 5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/average-television-said-be-6-hours-day-estimate-yearly-cost-electricity-operate The average television is said to be on 6 hours per day. Estimate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe56/thumbs-ed1ch20pe56-00002.png The average television is said to be on 6 hours per day. Estimate the yearly cost of electricity to operate 100 million TVs, assuming their power consumption averages 150 W and the cost of electricity averages 12.0 cents/kW \cdot h . https://seo-videos.collegephysicsanswers.com/ch20/pe56/ed1ch20pe56.mp4 99 50 5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-energy-dissipated-lightning-bolt-having-20000-current-voltage-100times (a) What energy is dissipated by a lightning bolt having a 20,000-A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe60/thumbs-ed1ch20pe60-00002.png (a) What energy is dissipated by a lightning bolt having a 20,000-A current, a voltage of 1.00 x 10^{2} MV , and a length of 1.00 ms? (b) What mass of tree sap could be raised from 18.0° C to its boiling point and then evaporated by this energy, assuming sap has the same thermal characteristics as water? https://seo-videos.collegephysicsanswers.com/ch20/pe60/ed1ch20pe60.mp4 165 68 5 2020-08-18 yes 2020-08-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heart-defibrillator-passes-100-through-patients-torso-500-ms-attempt-restore A heart defibrillator passes 10.0 A through a patient’s torso for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe92/thumbs-ed1ch20pe92-00002.png A heart defibrillator passes 10.0 A through a patient’s torso for 5.00 ms in an attempt to restore normal beating. (a) How much charge passed? (b) What voltage was applied if 500 J of energy was dissipated? (c) What was the path’s resistance? (d) Find the temperature increase caused in the 8.00 kg of affected tissue. https://seo-videos.collegephysicsanswers.com/ch20/pe92/ed1ch20pe92.mp4 224 121 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resistance-100times-102textrm-omega-250textrm-komega-and-400textrm-komega (a) What is the resistance of a 1.00 x 10^{2} \Omega , a 2.50 k… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe02/thumbs-ed1ch21pe02-00002.png (a) What is the resistance of a 1.00 x 10^{2} \Omega , a 2.50 k \Omega , and a 4.00 k \Omega resistor connected in series? (b) In parallel? https://seo-videos.collegephysicsanswers.com/ch21/pe02/ed1ch21pe02.mp4 203 391 4.6 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/240-kv-power-transmission-line-carrying-500times-102textrm-hung-grounded-metal A 240-kV power transmission line carrying 5.00 x 10^{2} A is hung… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe10/thumbs-ed1ch21pe10-00002.png A 240-kV power transmission line carrying 5.00 x 10^{2} A is hung from grounded metal towers by ceramic insulators, each having a 1.00 x 10^{9} \Omega resistance. Figure 21.51. (a) What is the resistance to ground of 100 of these insulators? (b) Calculate the power dissipated by 100 of them. (c) What fraction of the power carried by the line is this? Explicitly show how you follow the steps in the Problem-Solving Strategies for Series and Parallel Resistors. https://seo-videos.collegephysicsanswers.com/ch21/pe10/ed1ch21pe10.mp4 300 138 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/label-portable-radio-recommends-use-rechargeable-nickel-cadmium-cells-nicads The label on a portable radio recommends the use of rechargeable… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe22/thumbs-ed1ch21pe22-00002.png The label on a portable radio recommends the use of rechargeable nickel-cadmium cells (nicads), although they have a 1.25-V emf while alkaline cells have a 1.58-V emf. The radio has a 3.20 \Omega resistance. (a) Draw a circuit diagram of the radio and its batteries. Now, calculate the power delivered to the radio. (b) When using Nicad cells each having an internal resistance of 0.0400 \Omega. (c) When using alkaline cells each having an internal resistance of 0.200 \Omega. (d) Does this difference seem significant, considering that the radio’s effective resistance is lowered when its volume is turned up? https://seo-videos.collegephysicsanswers.com/ch21/pe22/ed1ch21pe22.mp4 268 75 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-216-calculate-p3-b-find-total-power-supplied-source-and-compare Referring to Figure 21.6: (a) Calculate P_3 (b) Find the total power… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe08/thumbs-ed1ch21pe08-00002.png Referring to Figure 21.6: (a) Calculate P_3 (b) Find the total power supplied by the source and compare it with the sum of the powers dissipated by the resistors. https://seo-videos.collegephysicsanswers.com/ch21/pe08/ed1ch21pe08.mp4 428 188 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/160textrm-mutextrmf-capacitor-charged-450-v-discharged-through-312textrm-komega A 160 \mu F capacitor charged to 450 V is discharged through a 31.2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe76/thumbs-ed1ch21pe76-00002.png A 160 \mu F capacitor charged to 450 V is discharged through a 31.2 k \Omega resistor. (a) Find the time constant. (b) Calculate the temperature increase of the resistor, given that its mass is 2.50 g and its specific heat is 1.67 kJ/kg \cdot C °, noting that most of the thermal energy is retained in the short time of the discharge. (c) Calculate the new resistance, assuming it is pure carbon. (d) Does this change in resistance seem significant? https://seo-videos.collegephysicsanswers.com/ch21/pe76/ed1ch21pe76.mp4 224 26 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-velocity-positive-charge-experiences-magnetic-force-shown-each What is the direction of the velocity of a positive charge that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe04/ed1ch22pe04b-thumbnail.jpg What is the direction of the velocity of a positive charge that experiences the magnetic force shown in each of the three cases in Figure 22.51, assuming it moves perpendicular to B? https://seo-videos.collegephysicsanswers.com/ch22/pe04/ed1ch22pe04b.mp4 119 93 5 2024-01-17 yes 2024-01-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-magnetic-field-produces-magnetic-force-negative-charge-shown-each What is the direction of the magnetic field that produces the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe06/thumbs-ed1ch22pe06-00002.png What is the direction of the magnetic field that produces the magnetic force on a **negative** charge as shown in each of the three cases in the figure below, assuming B is perpendicular to v? https://seo-videos.collegephysicsanswers.com/ch22/pe06/ed1ch22pe06.mp4 112 77 5 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cosmic-ray-electron-moves-750times-106textrm-ms-perpendicular-earths-magnetic A cosmic ray electron moves at 7.50 x 10^{6} m/s perpendicular to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe12/thumbs-ed1ch22pe12-00002.png A cosmic ray electron moves at 7.50 x 10^{6} m/s perpendicular to the Earth’s magnetic field at an altitude where field strength is 1.00 x 10^{-5} T . What is the radius of the circular path the electron follows? https://seo-videos.collegephysicsanswers.com/ch22/pe12/ed1ch22pe12.mp4 195 420 4.5 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/viewers-star-trek-hear-antimatter-drive-starship-enterprise-one-possibility-such (a) Viewers of Star Trek hear of an antimatter drive on the Starship… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe14/thumbs-ed1ch22pe14-00002.png (a) Viewers of Star Trek hear of an antimatter drive on the Starship Enterprise. One possibility for such a futuristic energy source is to store antimatter charged particles in a vacuum chamber, circulating in a magnetic field, and then extract them as needed. Antimatter annihilates with normal matter, producing pure energy. What strength magnetic field is needed to hold antiprotons, moving at 5.00 x 10^{7} m/s in a circular path 2.00 m in radius? Antiprotons have the same mass as protons but the opposite (negative) charge. (b) Is this field strength obtainable with today’s technology or is it a futuristic possibility? https://seo-videos.collegephysicsanswers.com/ch22/pe14/ed1ch22pe14.mp4 224 251 5 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-tv-crt-moves-speed-600times-107textrm-ms-direction-perpendicular-earths An electron in a TV CRT moves with a speed of 6.00 x 10^{7} m/s , in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe18/thumbs-ed1ch22pe18-00002.png An electron in a TV CRT moves with a speed of 6.00 x 10^{7} m/s , in a direction perpendicular to the Earth’s field, which has a strength of 5.00 x 10^{-5} T . (a) What strength electric field must be applied perpendicular to the Earth’s field to make the electron moves in a straight line? (b) If this is done between plates separated by 1.00 cm, what is the voltage applied? (Note that TVs are usually surrounded by a ferromagnetic material to shield against external magnetic fields and avoid the need for such a correction.) https://seo-videos.collegephysicsanswers.com/ch22/pe18/ed1ch22pe18.mp4 212 147 5 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-information-example-203-what-would-hall-voltage-be-if-200-t-field-applied Using information in [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe28/thumbs-ed1ch22pe28-00002.png Using information in [Example 20.3](https://openstax.org/books/college-physics/pages/20-1-current#fs-id2616778), what would the Hall voltage be if a 2.00-T field is applied across a 10-gauge copper wire (2.588 mm in diameter) carrying a 20.0-A current? https://seo-videos.collegephysicsanswers.com/ch22/pe28/ed1ch22pe28.mp4 259 58 5 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-current-experiences-magnetic-force-shown-each-three-cases-figure What is the direction of a current that experiences the magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe32/thumbs-ed1ch22pe32-00002.png What is the direction of a current that experiences the magnetic force shown in each of the three cases in Figure 22.54, assuming the current runs perpendicular to B? https://seo-videos.collegephysicsanswers.com/ch22/pe32/ed1ch22pe32.mp4 114 95 5 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/250-m-segment-wire-supplying-current-motor-submerged-submarine-carries-1000-and A 2.50-m segment of wire supplying current to the motor of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe52/thumbs-ed1ch22pe52-00002.png A 2.50-m segment of wire supplying current to the motor of a submerged submarine carries 1000 A and feels a 4.00-N repulsive force from a parallel wire 5.00 cm away. What is the direction and magnitude of the current in the other wire? https://seo-videos.collegephysicsanswers.com/ch22/pe52/ed1ch22pe52.mp4 126 124 4.8 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-maximum-torque-150-turn-square-loop-wire-180-cm-side-carries-500-current (a) What is the maximum torque on a 150-turn square loop of wire 18.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe42/thumbs-ed1ch22pe42-00002.png (a) What is the maximum torque on a 150-turn square loop of wire 18.0 cm on a side that carries a 50.0-A current in a 1.60-T field? (b) What is the torque when \theta is 10.9°? https://seo-videos.collegephysicsanswers.com/ch22/pe42/ed1ch22pe42.mp4 94 366 3.9 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-long-straight-wire-be-held-directly-above-another-repulsion-between-their One long straight wire is to be held directly above another by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe84/thumbs-ed1ch22pe84-00002.png One long straight wire is to be held directly above another by repulsion between their currents. The lower wire carries 100 A and the wire 7.50 cm above it is 10-gauge (2.588 mm diameter) copper wire. (a) What current must flow in the upper wire, neglecting the Earth’s field? (b) What is the smallest current if the Earth’s 3.00 x 10^{-5} T field is parallel to the ground and is not neglected? (c) Is the supported wire in a stable or unstable equilibrium if displaced vertically? If displaced horizontally? https://seo-videos.collegephysicsanswers.com/ch22/pe84/ed1ch22pe84.mp4 503 13 3.5 2020-11-13 yes 2020-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-direction-and-magnitude-force-each-wire-experiences-figure-2258a-using Find the direction and magnitude of the force that each wire… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe56/thumbs-ed1ch22pe56-00002.png Find the direction and magnitude of the force that each wire experiences in Figure 22.58(a) by, using vector addition. https://seo-videos.collegephysicsanswers.com/ch22/pe56/ed1ch22pe56.mp4 1113 165 4.6 2020-11-10 yes 2020-11-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-value-magnetic-flux-through-coil-figure-2356b-due-wire What is the value of the magnetic flux through the coil in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe02/thumbs-ed1ch23pe02-00002.png What is the value of the magnetic flux through the coil in Figure 23.56(b) due to the wire? https://seo-videos.collegephysicsanswers.com/ch23/pe02/ed1ch23pe02.mp4 40 149 4.3 2020-12-02 yes 2020-12-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-2357b-what-direction-current-induced-coil-if-current-wire Referring to Figure 23.57(b), what is the direction of the current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe04/thumbs-ed1ch23pe04-00002.png Referring to Figure 23.57(b), what is the direction of the current induced in the coil: (a) If the current in the wire increases? (b) If the current in the wire decreases? (c) If the current in the wire suddenly changes direction? Explicitly show how you follow the steps in the Problem-Solving Strategy for Lenz’s Law. https://seo-videos.collegephysicsanswers.com/ch23/pe04/ed1ch23pe04.mp4 260 233 4.8 2020-12-02 yes 2020-12-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-2358-reversing-direction-battery-what-are-directions-currents Referring to Figure 23.58, but reversing the direction of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe06/thumbs-ed1ch23pe06-00002.png Referring to Figure 23.58, but reversing the direction of the battery, what are the directions of the currents in coils 1, 2, and 3 (assume that the coils are lying in the plane of the circuit): (a) When the switch is first closed? (b) When the switch has been closed for a long time? (c) Just after the switch is opened? https://seo-videos.collegephysicsanswers.com/ch23/pe06/ed1ch23pe06.mp4 395 31 4.5 2020-12-02 yes 2020-12-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/120-cm-long-rod-figure-2311-moves-400-ms-what-strength-magnetic-field-if-950-v The 12.0 cm long rod in Figure 23.11 moves at 4.00 m/s. What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe20/thumbs-ed1ch23pe20-00002.png The 12.0 cm long rod in Figure 23.11 moves at 4.00 m/s. What is the strength of the magnetic field if a 95.0 V emf is induced? https://seo-videos.collegephysicsanswers.com/ch23/pe20/ed1ch23pe20.mp4 118 61 5 2020-12-09 yes 2020-12-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/plug-transformer-figure-2329-supplies-900-v-video-game-system-how-many-turns-are A plug-in transformer, like that in Figure 23.29, supplies 9.00 V to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe44/thumbs-ed1ch23pe44-00002.png A plug-in transformer, like that in Figure 23.29, supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil, if its input voltage is 120 V and the primary coil has 400 turns? (b) What is its input current when its output is 1.30 A? https://seo-videos.collegephysicsanswers.com/ch23/pe44/ed1ch23pe44.mp4 115 270 5 2020-12-11 yes 2020-12-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cassette-recorder-uses-plug-transformer-convert-120-v-120-v-maximum-current A cassette recorder uses a plug-in transformer to convert 120 V to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe46/thumbs-ed1ch23pe46-00002.png A cassette recorder uses a plug-in transformer to convert 120 V to 12.0 V, with a maximum current output of 200 mA. (a) What is the current input? (b) What is the power input? (c) Is this amount of power reasonable for a small appliance? https://seo-videos.collegephysicsanswers.com/ch23/pe46/ed1ch23pe46.mp4 126 167 3.8 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-self-inductance-500-cm-long-100-cm-diameter-solenoid-having-1000-loops (a) Calculate the self-inductance of a 50.0 cm long, 10.0 cm diameter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe62/thumbs-ed1ch23pe62-00002.png (a) Calculate the self-inductance of a 50.0 cm long, 10.0 cm diameter solenoid having 1000 loops. (b) How much energy is stored in this inductor when 20.0 A of current flows through it? (c) How fast can it be turned off if the induced emf cannot exceed 3.00 V? https://seo-videos.collegephysicsanswers.com/ch23/pe62/ed1ch23pe62.mp4 158 134 3.4 2020-12-14 yes 2020-12-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heating-coils-hair-dryer-are-0800-cm-diameter-have-combined-length-100-m-and The heating coils in a hair dryer are 0.800 cm in diameter, have a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe64/thumbs-ed1ch23pe64-00002.png The heating coils in a hair dryer are 0.800 cm in diameter, have a combined length of 1.00 m, and a total of 400 turns. (a) What is their total self-inductance assuming they act like a single solenoid? (b) How much energy is stored in them when 6.00 A flows? (c) What average emf opposes shutting them off if this is done in 5.00 ms (one-fourth of a cycle for 50 Hz AC)? https://seo-videos.collegephysicsanswers.com/ch23/pe64/ed1ch23pe64.mp4 138 89 4.6 2020-12-16 yes 2020-12-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-microwave-frequencies-are-authorized-use-microwave-ovens-900-and-2560-mhz (a) Two microwave frequencies are authorized for use in microwave… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe06/thumbs-ed1ch24pe06-00002.png (a) Two microwave frequencies are authorized for use in microwave ovens: 900 and 2560 MHz. Calculate the wavelength of each. (b) Which frequency would produce smaller hot spots in foods due to interference effects? https://seo-videos.collegephysicsanswers.com/ch24/pe06/ed1ch24pe06.mp4 85 153 3.5 2021-01-04 yes 2021-01-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/distances-space-are-often-quoted-units-light-years-distance-light-travels-one Distances in space are often quoted in units of light years, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe18/thumbs-ed1ch24pe18-00002.png Distances in space are often quoted in units of light years, the distance light travels in one year. (a) How many meters is a light year? (b) How many meters is it to Andromeda, the nearest large galaxy, given that it is 2.00 x 10^{6} light years away? (c) The most distant galaxy yet discovered is 12.0 x 10^{9} light years away. How far is this in meters? https://seo-videos.collegephysicsanswers.com/ch24/pe18/ed1ch24pe18.mp4 94 61 4 2021-01-05 yes 2021-01-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lunar-astronauts-placed-reflector-moons-surface-which-laser-beam-periodically Lunar astronauts placed a reflector on the Moon’s surface, off which… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe26/thumbs-ed1ch24pe26-00002.png Lunar astronauts placed a reflector on the Moon’s surface, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. (a) To what accuracy in meters can the distance to the Moon be determined, if this time can be measured to 0.100 ns? (b) What percent accuracy is this, given the average distance to the Moon is 3.84 x 10^{8} m ? https://seo-videos.collegephysicsanswers.com/ch24/pe26/ed1ch24pe26.mp4 235 68 2.7 2021-01-05 yes 2021-01-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/scuba-diver-training-pool-looks-his-instructor-shown-figure-2553-what-angle-does A scuba diver training in a pool looks at his instructor as shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe10/thumbs-ed1ch25pe10-00002.png A scuba diver training in a pool looks at his instructor as shown in Figure 25.53. What angle does the ray from the instructor’s face make with the perpendicular to the water at the point where the ray enters? The angle between the ray in the water and the perpendicular to the water is 25.0°. https://seo-videos.collegephysicsanswers.com/ch25/pe10/ed1ch25pe10.mp4 106 446 4.2 2021-01-08 yes 2021-01-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/moons-surface-lunar-astronauts-placed-corner-reflector-which-laser-beam On the Moon’s surface, lunar astronauts placed a corner reflector,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe14/thumbs-ed1ch25pe14-00002.png On the Moon’s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. What percent correction is needed to account for the delay in time due to the slowing of light in Earth’s atmosphere? Assume the distance to the Moon is precisely 3.84 x 10^{8} m , and Earth's atmosphere (which varies in density with altitude) is equivalent to a layer 30.0 km thick with a constant index of refraction n = 1.000293. https://seo-videos.collegephysicsanswers.com/ch25/pe14/ed1ch25pe14.mp4 311 92 4 2021-01-09 yes 2021-01-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2554-shows-ray-light-passing-one-medium-second-and-then-third-show-theta3 Figure 25.54 shows a ray of light passing from one medium into a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe16/thumbs-ed1ch25pe16-00002.png Figure 25.54 shows a ray of light passing from one medium into a second and then a third. Show that \theta_3 is the same as it would be if the second medium were not present (provided total internal reflection does not occur). https://seo-videos.collegephysicsanswers.com/ch25/pe16/ed1ch25pe16.mp4 271 125 5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-speed-red-light-violet-light-diamond-based-table-252-b-what-ratio (a) What is the ratio of the speed of red light to violet light in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe28/thumbs-ed1ch25pe28-00002.png (a) What is the ratio of the speed of red light to violet light in diamond, based on [Table 25.2](https://openstax.org/books/college-physics-ap-courses/pages/25-5-dispersion-the-rainbow-and-prisms#import-auto-id2720898)? (b) What is this ratio in polystyrene? (c) Which is more dispersive? https://seo-videos.collegephysicsanswers.com/ch25/pe28/ed1ch25pe28.mp4 187 58 4.5 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/camera-500-mm-focal-length-lens-being-used-photograph-person-standing-300-m-away A camera with a 50.0 mm focal length lens is being used to photograph… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe44/thumbs-ed1ch25pe44-00002.png A camera with a 50.0 mm focal length lens is being used to photograph a person standing 3.00 m away. (a) How far from the lens must the film be? (b) If the film is 36.0 mm high, what fraction of a 1.75 m tall person will fit on it? (c) Discuss how reasonable this seems, based on your experience in taking or posing for photographs. https://seo-videos.collegephysicsanswers.com/ch25/pe44/ed1ch25pe44.mp4 244 132 4.3 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/narrow-beam-light-containing-red-660-nm-and-blue-470-nm-wavelengths-travels-air A narrow beam of light containing red (660 nm) and blue (470 nm)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe34/thumbs-ed1ch25pe34-00002.png A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 1.00 cm thick flat piece of crown glass and back to air again. The beam strikes at a 30.0° incident angle. (a) At what angles do the two colors emerge? (b) By what distance are the red and blue separated when they emerge? https://seo-videos.collegephysicsanswers.com/ch25/pe34/ed1ch25pe34.mp4 514 103 4.8 2021-01-13 yes 2021-01-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnification-will-be-produced-lens-power-400-d-such-might-be-used-correct What magnification will be produced by a lens of power –4.00 D (such… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe48/thumbs-ed1ch25pe48-00002.png What magnification will be produced by a lens of power –4.00 D (such as might be used to correct myopia) if an object is held 25.0 cm away? https://seo-videos.collegephysicsanswers.com/ch25/pe48/ed1ch25pe48.mp4 147 86 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ray-tracing-flat-mirror-shows-image-located-distance-behind-mirror-equal Ray tracing for a flat mirror shows that the image is located a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe60/thumbs-ed1ch25pe60-00002.png Ray tracing for a flat mirror shows that the image is located a distance behind the mirror equal to the distance of the object from the mirror. This is stated d_i = -d_o , since this is a negative image distance (it is a virtual image). (a) What is the focal length of a flat mirror? (b) What is its power? https://seo-videos.collegephysicsanswers.com/ch25/pe60/ed1ch25pe60.mp4 93 42 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/shopper-standing-300-m-convex-security-mirror-sees-his-image-magnification-0250 A shopper standing 3.00 m from a convex security mirror sees his… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe58/thumbs-ed1ch25pe58-00002.png A shopper standing 3.00 m from a convex security mirror sees his image with a magnification of 0.250. (a) Where is his image? (b) What is the focal length of the mirror? (c) What is its radius of curvature? Explicitly show how you follow the steps in the Problem-Solving Strategy for Mirrors. https://seo-videos.collegephysicsanswers.com/ch25/pe58/ed1ch25pe58.mp4 120 336 4.2 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-your-500-mm-focal-length-camera-lens-510-mm-away-film-camera-how-far Suppose your 50.0 mm focal length camera lens is 51.0 mm away from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe46/thumbs-ed1ch25pe46-00002.png Suppose your 50.0 mm focal length camera lens is 51.0 mm away from the film in the camera. (a) How far away is an object that is in focus? (b) What is the height of the object if its image is 2.00 cm high? https://seo-videos.collegephysicsanswers.com/ch25/pe46/ed1ch25pe46.mp4 248 186 4.8 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-law-reflection-prove-focal-length-mirror-half-its-radius-curvature-prove-f Use the law of reflection to prove that the focal length of a mirror… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe62/thumbs-ed1ch25pe62-00002.png Use the law of reflection to prove that the focal length of a mirror is half its radius of curvature. That is, prove that f = \dfrac{R}{2}. Note this is true for a spherical mirror only if its diameter is small compared with its radius of curvature. https://seo-videos.collegephysicsanswers.com/ch25/pe62/ed1ch25pe62.mp4 438 30 5 2021-01-14 yes 2021-01-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-myopic-man-has-far-point-200-cm-what-power-contact-lens-when-eye-will A very myopic man has a far point of 20.0 cm. What power contact lens… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe16/thumbs-ed1ch26pe16-00002.png A very myopic man has a far point of 20.0 cm. What power contact lens (when on the eye) will correct his distant vision? https://seo-videos.collegephysicsanswers.com/ch26/pe16/ed1ch26pe16.mp4 106 206 4.5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/contact-lens-prescription-nearsighted-person-400-d-and-person-has-far-point-225 The contact lens prescription for a nearsighted person is –4.00 D and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe24/thumbs-ed1ch26pe24-00002.png The contact lens prescription for a nearsighted person is –4.00 D and the person has a far point of 22.5 cm. What is the power of the tear layer between the cornea and the lens if the correction is ideal, taking the tear layer into account? https://seo-videos.collegephysicsanswers.com/ch26/pe24/ed1ch26pe24.mp4 160 60 5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/contact-lens-prescription-mildly-farsighted-person-0750-d-and-person-has-near-0 The contact lens prescription for a mildly farsighted person is 0.750… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe20/thumbs-ed1ch26pe20-00002.png The contact lens prescription for a mildly farsighted person is 0.750 D, and the person has a near point of 29.0 cm. What is the power of the tear layer between the cornea and the lens if the correction is ideal, taking the tear layer into account? https://seo-videos.collegephysicsanswers.com/ch26/pe20/ed1ch26pe20.mp4 167 113 4.5 2021-01-19 yes 2021-01-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/small-telescope-has-concave-mirror-200-m-radius-curvature-its-objective-its A small telescope has a concave mirror with a 2.00 m radius of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe36/thumbs-ed1ch26pe36-00002.png A small telescope has a concave mirror with a 2.00 m radius of curvature for its objective. Its eyepiece is a 4.00 cm focal length lens. (a) What is the telescope’s angular magnification? (b) What angle is subtended by a 25,000 km diameter sunspot? (c) What is the angle of its telescopic image? https://seo-videos.collegephysicsanswers.com/ch26/pe36/ed1ch26pe36.mp4 182 107 3.7 2021-01-26 yes 2021-01-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/amoeba-0305-cm-away-0300-cm-focal-length-objective-lens-microscope-where-image An amoeba is 0.305 cm away from the 0.300 cm focal length objective… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe30/thumbs-ed1ch26pe30-00002.png An amoeba is 0.305 cm away from the 0.300 cm focal length objective lens of a microscope. (a) Where is the image formed by the objective lens? (b) What is this image’s magnification? (c) An eyepiece with a 2.00 cm focal length is placed 20.0 cm from the objective. Where is the final image? (d) What magnification is produced by the eyepiece? (e) What is the overall magnification? (See Figure 26.16.) https://seo-videos.collegephysicsanswers.com/ch26/pe30/ed1ch26pe30.mp4 381 204 4 2021-01-26 yes 2021-01-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/where-does-object-need-be-placed-relative-microscope-its-0500-cm-focal-length (a) Where does an object need to be placed relative to a microscope… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe28/thumbs-ed1ch26pe28-00002.png (a) Where does an object need to be placed relative to a microscope for its 0.500 cm focal length objective to produce a magnification of –400 ? (b) Where should the 5.00 cm focal length eyepiece be placed to produce a further fourfold (4.00) magnification? https://seo-videos.collegephysicsanswers.com/ch26/pe28/ed1ch26pe28.mp4 469 120 4.8 2021-01-26 yes 2021-01-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-have-cart-track-two-carts-several-masses-position-sensing-pulley-and-piece You have a cart track, two carts, several masses, a position-sensing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap04/thumbs-ed1ch07ap04-00002.png You have a cart track, two carts, several masses, a position-sensing pulley, and a piece of carpet (a rough surface) that will fit over the track. Design an experiment to examine how the force exerted on the cart does work as the cart moves through a distance. https://seo-videos.collegephysicsanswers.com/ch07/ap04/ed1ch07ap04.mp4 191 6 4 2021-01-27 yes 2021-01-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-range-visible-wavelengths-light-crown-glass Find the range of visible wavelengths of light in crown glass. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe02/thumbs-ed1ch27pe02-00002.png Find the range of visible wavelengths of light in crown glass. https://seo-videos.collegephysicsanswers.com/ch27/pe02/ed1ch27pe02.mp4 58 104 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/analysis-interference-effect-clear-solid-shows-wavelength-light-solid-329-nm Analysis of an interference effect in a clear solid shows that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe04/thumbs-ed1ch27pe04-00002.png Analysis of an interference effect in a clear solid shows that the wavelength of light in the solid is 329 nm. Knowing this light comes from a He-Ne laser and has a wavelength of 633 nm in air, is the substance zircon or diamond? https://seo-videos.collegephysicsanswers.com/ch27/pe04/ed1ch27pe04.mp4 63 90 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-separation-between-two-slits-which-610-nm-orange-light-has-its-first What is the separation between two slits for which 610-nm orange… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe08/thumbs-ed1ch27pe08-00002.png What is the separation between two slits for which 610-nm orange light has its first maximum at an angle of 30.0°? https://seo-videos.collegephysicsanswers.com/ch27/pe08/ed1ch27pe08.mp4 60 154 4.6 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-wavelength-light-has-its-third-minimum-angle-300circ-when-falling Calculate the wavelength of light that has its third minimum at an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe10/thumbs-ed1ch27pe10-00002.png Calculate the wavelength of light that has its third minimum at an angle of 30.0° when falling on double slits separated by 3.00 \mu m . Explicitly, show how you follow the steps in Problem-Solving Strategies for Wave Optics. https://seo-videos.collegephysicsanswers.com/ch27/pe10/ed1ch27pe10.mp4 103 101 4.5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-largest-wavelength-light-falling-double-slits-separated-120textrm-mutextrmm Find the largest wavelength of light falling on double slits… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe14/thumbs-ed1ch27pe14-00002.png Find the largest wavelength of light falling on double slits separated by 1.20 \mu m for which there is a first-order maximum. Is this in the visible part of the spectrum? https://seo-videos.collegephysicsanswers.com/ch27/pe14/ed1ch27pe14.mp4 125 60 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-result-problem-two-problems-prior-find-wavelength-light-produces-fringes Using the result of the problem [two problems… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe20/thumbs-ed1ch27pe20-00002.png Using the result of the problem [two problems prior](https://collegephysicsanswers.com/openstax-solutions/figure-2756-shows-double-slit-located-distance-x-screen-distance-center-screen), find the wavelength of light that produces fringes 7.50 mm apart on a screen 2.00 m from double slits separated by 0.120 mm (see Figure 27.56). https://seo-videos.collegephysicsanswers.com/ch27/pe20/ed1ch27pe20.mp4 95 42 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-distance-between-lines-diffraction-grating-produces-second-order-maximum What is the distance between lines on a diffraction grating that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe24/thumbs-ed1ch27pe24-00002.png What is the distance between lines on a diffraction grating that produces a second-order maximum for 760-nm red light at an angle of 60.0°? https://seo-videos.collegephysicsanswers.com/ch27/pe24/ed1ch27pe24.mp4 69 46 5 2021-04-10 yes 2021-04-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-angle-third-order-maximum-580-nm-wavelength-yellow-light-falling Find the angle for the third-order maximum for 580-nm- wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe22/thumbs-ed1ch27pe22-00002.png Find the angle for the third-order maximum for 580-nm- wavelength yellow light falling on a diffraction grating having 1500 lines per centimeter. https://seo-videos.collegephysicsanswers.com/ch27/pe22/ed1ch27pe22.mp4 92 75 5 2021-04-08 yes 2021-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/opal-such-shown-figure-2717-acts-reflection-grating-rows-separated-about-8textrm An opal such as that shown in Figure 27.17 acts like a reflection… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe32/thumbs-ed1ch27pe32-00002.png An opal such as that shown in Figure 27.17 acts like a reflection grating with rows separated by about 8 \mu m . If the opal is illuminated normally, (a) at what angle will red light be seen and (b) at what angle will blue light be seen? https://seo-videos.collegephysicsanswers.com/ch27/pe32/ed1ch27pe32.mp4 108 29 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/he-ne-laser-beam-reflected-surface-cd-wall-brightest-spot-reflected-beam-angle A He–Ne laser beam is reflected from the surface of a CD onto a wall.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe38/thumbs-ed1ch27pe38-00002.png A He–Ne laser beam is reflected from the surface of a CD onto a wall. The brightest spot is the reflected beam at an angle equal to the angle of incidence. However, fringes are also observed. If the wall is 1.50 m from the CD, and the first fringe is 0.600 m from the central maximum, what is the spacing of grooves on the CD? https://seo-videos.collegephysicsanswers.com/ch27/pe38/ed1ch27pe38.mp4 134 60 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-angle-which-200textrm-mutextrmm-wide-slit-produces-its-first-minimum (a) Calculate the angle at which a 2.00 \mu m wide slit produces its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe44/thumbs-ed1ch27pe44-00002.png (a) Calculate the angle at which a 2.00 \mu m wide slit produces its first minimum for 410-nm violet light. (b) Where is the first minimum for 700-nm red light? https://seo-videos.collegephysicsanswers.com/ch27/pe44/ed1ch27pe44.mp4 83 136 4.4 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-diffraction-grating-cannot-produce-second-order-maximum-given-wavelength Show that a diffraction grating cannot produce a second- order… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe34/thumbs-ed1ch27pe34-00002.png Show that a diffraction grating cannot produce a second- order maximum for a given wavelength of light unless the first-order maximum is at an angle less than 30.0°. https://seo-videos.collegephysicsanswers.com/ch27/pe34/ed1ch27pe34.mp4 187 33 5 2021-04-14 yes 2021-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-width-single-slit-produces-its-first-minimum-600circ-600-nm-light-b-find (a) What is the width of a single slit that produces its first… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe46/thumbs-ed1ch27pe46-00002.png (a) What is the width of a single slit that produces its first minimum at 60.0° for 600-nm light? (b) Find the wavelength of light that has its first minimum at 62.0°. https://seo-videos.collegephysicsanswers.com/ch27/pe46/ed1ch27pe46.mp4 121 94 5 2021-04-15 yes 2021-04-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-wavelength-light-produces-its-first-minimum-angle-369circ-when-falling Calculate the wavelength of light that produces its first minimum at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe48/thumbs-ed1ch27pe48-00002.png Calculate the wavelength of light that produces its first minimum at an angle of 36.9° when falling on a single slit of width 1.00 \mu m . https://seo-videos.collegephysicsanswers.com/ch27/pe48/ed1ch27pe48.mp4 77 43 3 2021-04-15 yes 2021-04-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-angular-spread-633-nm-wavelength-he-ne-laser-beam-originally-100-mm (a) What is the minimum angular spread of a 633-nm wavelength He-Ne… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe60/thumbs-ed1ch27pe60-00002.png (a) What is the minimum angular spread of a 633-nm wavelength He-Ne laser beam that is originally 1.00 mm in diameter? (b) If this laser is aimed at a mountain cliff 15.0 km away, how big will the illuminated spot be? (c) How big a spot would be illuminated on the Moon, neglecting atmospheric effects? (This might be done to hit a corner reflector to measure the round-trip time and, hence, distance.) Explicitly show how you follow the steps in Problem-Solving Strategies for Wave Optics. https://seo-videos.collegephysicsanswers.com/ch27/pe60/ed1ch27pe60.mp4 227 48 5 2021-04-16 yes 2021-04-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spaceship-200-m-long-seen-board-moves-earth-0970c-what-its-length-measured-earth A spaceship, 200 m long as seen on board, moves by the Earth at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe12/thumbs-ed1ch28pe12-00002.png A spaceship, 200 m long as seen on board, moves by the Earth at 0.970c . What is its length as measured by an Earth-bound observer? https://seo-videos.collegephysicsanswers.com/ch28/pe12/ed1ch28pe12.mp4 90 231 4 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-reflected-625circ-gemstone-ring-completely-polarized-can-gem-be-diamond-b (a) Light reflected at 62.5° from a gemstone in a ring is completely… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe96/thumbs-ed1ch27pe96-00002.png (a) Light reflected at 62.5° from a gemstone in a ring is completely polarized. Can the gem be a diamond? (b) At what angle would the light be completely polarized if the gem was in water? https://seo-videos.collegephysicsanswers.com/ch27/pe96/ed1ch27pe96.mp4 108 44 5 2021-04-20 yes 2021-04-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-two-spaceships-are-heading-directly-towards-each-other-0800c-what-speed-must If two spaceships are heading directly towards each other at 0.800c,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe26/thumbs-ed1ch28pe26-00002.png If two spaceships are heading directly towards each other at 0.800c, at what speed must a canister be shot from the first ship to approach the other at 0.999c as seen by the second ship? https://seo-videos.collegephysicsanswers.com/ch28/pe26/ed1ch28pe26.mp4 146 44 4.5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-rest-energy-joules-and-mev-proton-given-its-mass-167times-10-27textrm-kg Find the rest energy in joules and MeV of a proton, given its mass is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe44/thumbs-ed1ch28pe44-00002.png Find the rest energy in joules and MeV of a proton, given its mass is 1.67 x 10^{-27} kg . https://seo-videos.collegephysicsanswers.com/ch28/pe44/ed1ch28pe44.mp4 40 74 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-does-it-take-astronaut-example-282-travel-430-ly-099944c-measured-earth (a) How long does it take the astronaut in Example 28.2 to travel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe16/thumbs-ed1ch28pe16-00002.png (a) How long does it take the astronaut in Example 28.2 to travel 4.30 ly at 0.99944c (as measured by the Earth- bound observer)? (b) How long does it take according to the astronaut? (c) Verify that these two times are related through time dilation with \gamma = 30.00 as given. https://seo-videos.collegephysicsanswers.com/ch28/pe16/ed1ch28pe16.mp4 203 122 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/big-bang-began-universe-estimated-have-released-1068textrm-j-energy-how-many The Big Bang that began the universe is estimated to have released… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe46/thumbs-ed1ch28pe46-00002.png The Big Bang that began the universe is estimated to have released 10^{68} J of energy. How many stars could half this energy create, assuming the average star's mass is 4.00 x 10^{30} kg . https://seo-videos.collegephysicsanswers.com/ch28/pe46/ed1ch28pe46.mp4 58 54 3 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/near-center-our-galaxy-hydrogen-gas-moving-directly-away-us-its-orbit-about Near the center of our galaxy, hydrogen gas is moving directly away… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe30/thumbs-ed1ch28pe30-00002.png Near the center of our galaxy, hydrogen gas is moving directly away from us in its orbit about a black hole. We receive 1900 nm electromagnetic radiation and know that it was 1875 nm when emitted by the hydrogen gas. What is the speed of the gas? https://seo-videos.collegephysicsanswers.com/ch28/pe30/ed1ch28pe30.mp4 223 123 5 2021-04-24 yes 2021-04-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-longest-wavelength-em-radiation-can-eject-photoelectron-silver-given What is the longest-wavelength EM radiation that can eject a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe04/thumbs-ed1ch29pe04-00002.png What is the longest-wavelength EM radiation that can eject a photoelectron from silver, given that the binding energy is 4.73 eV? Is this in the visible range? https://seo-videos.collegephysicsanswers.com/ch29/pe04/ed1ch29pe04.mp4 120 309 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-em-radiation-ejects-200-ev-electrons-calcium-metal-given-binding What is the wavelength of EM radiation that ejects 2.00-eV electrons… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe12/thumbs-ed1ch29pe12-00002.png What is the wavelength of EM radiation that ejects 2.00-eV electrons from calcium metal, given that the binding energy is 2.71 eV? What type of EM radiation is this? https://seo-videos.collegephysicsanswers.com/ch29/pe12/ed1ch29pe12.mp4 116 131 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-power-outputs-two-microwave-ovens-having-frequencies-950-and-2560-mhz (a) What is the ratio of power outputs by two microwave ovens having… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe30/thumbs-ed1ch29pe30-00002.png (a) What is the ratio of power outputs by two microwave ovens having frequencies of 950 and 2560 MHz, if they emit the same number of photons per second? (b) What is the ratio of photons per second if they have the same power output? https://seo-videos.collegephysicsanswers.com/ch29/pe30/ed1ch29pe30.mp4 184 28 5 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/laser-power-output-200-mw-wavelength-400-nm-projected-calcium-metal-how-many A laser with a power output of 2.00 mW at a wavelength of 400 nm is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe16/thumbs-ed1ch29pe16-00002.png A laser with a power output of 2.00 mW at a wavelength of 400 nm is projected onto calcium metal. (a) How many electrons per second are ejected? (b) What power is carried away by the electrons, given that the binding energy is 2.71 eV? https://seo-videos.collegephysicsanswers.com/ch29/pe16/ed1ch29pe16.mp4 194 127 3.3 2021-04-27 yes 2021-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rutherford-found-size-nucleus-be-about-10-15textrm-m-implied-huge-density-what Rutherford found the size of the nucleus to be about 10^{-15} m .… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe04/thumbs-ed1ch30pe04-00002.png Rutherford found the size of the nucleus to be about 10^{-15} m . This implied a huge density. What would this density be for gold? https://seo-videos.collegephysicsanswers.com/ch30/pe04/ed1ch30pe04.mp4 85 162 5 2021-05-06 yes 2021-05-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-line-balmer-series-first-one-uv-part-spectrum-b-how-many-balmer-series (a) Which line in the Balmer series is the first one in the UV part… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe18/thumbs-ed1ch30pe18-00002.png (a) Which line in the Balmer series is the first one in the UV part of the spectrum? (b) How many Balmer series lines are in the visible part of the spectrum? (c) How many are in the UV? https://seo-videos.collegephysicsanswers.com/ch30/pe18/ed1ch30pe18.mp4 360 103 5 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/atoms-can-be-ionized-thermal-collisions-such-high-temperatures-found-solar Atoms can be ionized by thermal collisions, such as at the high… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe22/thumbs-ed1ch30pe22-00002.png Atoms can be ionized by thermal collisions, such as at the high temperatures found in the solar corona. One such ion is C ^{+5}, a carbon atom with only a single electron. (a) By what factor are the energies of its hydrogen-like levels greater than those of hydrogen? (b) What is the wavelength of the first line in this ion’s Paschen series? (c) What type of EM radiation is this? https://seo-videos.collegephysicsanswers.com/ch30/pe22/ed1ch30pe22.mp4 250 66 4 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wavelength-four-balmer-series-lines-hydrogen-are-found-be-4103-4342-4863-and The wavelength of the four Balmer series lines for hydrogen are found… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe24/thumbs-ed1ch30pe24-00002.png The wavelength of the four Balmer series lines for hydrogen are found to be 410.3, 434.2, 486.3, and 656.5 nm. What average percentage difference is found between these wavelength numbers and those predicted by \dfrac{1}{\lambda} = R \left ( \dfrac{1}{n_f^2} - \dfrac{1}{n_i^2} \right )? It is amazing how well a simple formula (disconnected originally from theory) could duplicate this phenomenon. https://seo-videos.collegephysicsanswers.com/ch30/pe24/ed1ch30pe24.mp4 186 40 4 2021-05-07 yes 2021-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/excimer-laser-used-vision-correction-emits-193-nm-uv-calculate-photon-energy-ev (a) An excimer laser used for vision correction emits 193-nm UV.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe64/thumbs-ed1ch30pe64-00002.png (a) An excimer laser used for vision correction emits 193-nm UV. Calculate the photon energy in eV. (b) These photons are used to evaporate corneal tissue, which is very similar to water in its properties. Calculate the amount of energy needed per molecule of water to make the phase change from liquid to gas. That is, divide the heat of vaporization in kJ/kg by the number of water molecules in a kilogram. (c) Convert this to eV and compare to the photon energy. Discuss the implications. https://seo-videos.collegephysicsanswers.com/ch30/pe64/ed1ch30pe64.mp4 201 4 2 2021-05-10 yes 2021-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particle-ionizing-radiation-creates-4000-ion-pairs-gas-inside-geiger-tube-it-1 A particle of ionizing radiation creates 4000 ion pairs in the gas… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe02/thumbs-ed1ch31pe02-00002.png A particle of ionizing radiation creates 4000 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy was deposited, if 30.0 eV is required to create each ion pair? https://seo-videos.collegephysicsanswers.com/ch31/pe02/ed1ch31pe02.mp4 35 73 3.5 2021-05-12 yes 2021-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-annihilation-gamma-rays-pet-scan-originate-same-point-and-travel-detectors (a) Two annihilation \gamma rays in a PET scan originate at the same… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe04/thumbs-ed1ch32pe04-00002.png (a) Two annihilation \gamma rays in a PET scan originate at the same point and travel to detectors on either side of the patient. If the point of origin is 9.00 cm closer to one of the detectors, what is the difference in arrival times of the photons? (This could be used to give position information, but the time difference is small enough to make it difficult.) (b) How accurately would you need to be able to measure arrival time differences to get a position resolution of 1.00 mm? https://seo-videos.collegephysicsanswers.com/ch32/pe04/ed1ch32pe04.mp4 138 31 3.7 2021-05-21 yes 2021-05-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/characteristic-length-entities-superstring-theory-approximately-10-35textrm-m The characteristic length of entities in Superstring theory is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe26/thumbs-ed1ch34pe26-00002.png The characteristic length of entities in Superstring theory is approximately 10^{-35} m . (a) Find the energy in GeV of a photon of this wavelength. (b) Compare this with the average particle energy of 10^{19} GeV needed for unification of forces. https://seo-videos.collegephysicsanswers.com/ch34/pe26/ed1ch34pe26.mp4 60 15 5 2021-06-01 yes 2021-06-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-attach-object-mass-m-vertical-spring-originally-rest-and-let-it Suppose you attach the object with mass m to a vertical spring… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe17/thumbs-ed1ch16pe17-00002.png Suppose you attach the object with mass m to a vertical spring originally at rest, and let it bounce up and down. You release the object from rest at the spring’s original rest length. (a) Show that the spring exerts an upward force of 2.00 mg on the object at its lowest point. (b) If the spring has a force constant of 10.0 N/m and a 0.25-kg-mass object is set in motion as described, find the amplitude of the oscillations. (c) Find the maximum velocity. https://seo-videos.collegephysicsanswers.com/ch16/pe17/ed1ch16pe17.mp4 194 255 4.3 2018-06-21 yes 2018-06-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/900-kg-skydiver-hanging-parachute-bounces-and-down-period-150-s-what-new-period A 90.0-kg skydiver hanging from a parachute bounces up and down with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe21/thumbs-ed1ch16pe21-00002.png A 90.0-kg skydiver hanging from a parachute bounces up and down with a period of 1.50 s. What is the new period of oscillation when a second skydiver, whose mass is 60.0 kg, hangs from the legs of the first, as seen in Figure 16.47. https://seo-videos.collegephysicsanswers.com/ch16/pe21/ed1ch16pe21.mp4 94 106 5 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-does-it-take-child-swing-complete-one-swing-if-her-center-gravity-400-m How long does it take a child on a swing to complete one swing if her… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe25/thumbs-ed1ch16pe25-00002.png How long does it take a child on a swing to complete one swing if her center of gravity is 4.00 m below the pivot? https://seo-videos.collegephysicsanswers.com/ch16/pe25/ed1ch16pe25.mp4 27 104 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-people-think-pendulum-period-100-s-can-be-driven-mental-energy-or-psycho Some people think a pendulum with a period of 1.00 s can be driven… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe23/thumbs-ed1ch16pe23-00002.png Some people think a pendulum with a period of 1.00 s can be driven with “mental energy” or psycho kinetically, because its period is the same as an average heartbeat. True or not, what is the length of such a pendulum? https://seo-videos.collegephysicsanswers.com/ch16/pe23/ed1ch16pe23.mp4 67 74 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-parakeets-sit-swing-their-combined-center-mass-100-cm-below-pivot-what Two parakeets sit on a swing with their combined center of mass 10.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe27/thumbs-ed1ch16pe27-00002.png Two parakeets sit on a swing with their combined center of mass 10.0 cm below the pivot. At what frequency do they swing? https://seo-videos.collegephysicsanswers.com/ch16/pe27/ed1ch16pe27.mp4 38 22 5 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-newold-periods-pendulum-if-pendulum-were-transported-earth-moon-where Find the ratio of the new/old periods of a pendulum if the pendulum… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe31/thumbs-ed1ch16pe31-00002.png Find the ratio of the new/old periods of a pendulum if the pendulum were transported from Earth to the Moon, where the acceleration due to gravity is 1.63 m/s ^2 https://seo-videos.collegephysicsanswers.com/ch16/pe31/ed1ch16pe31.mp4 89 74 5 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-length-clocks-pendulum-changed-1000-exactly-noon-one-day-what-time-will Suppose the length of a clock’s pendulum is changed by 1.000%,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe33/thumbs-ed1ch16pe33-00002.png Suppose the length of a clock’s pendulum is changed by 1.000%, exactly at noon one day. What time will it read 24.00 hours later, assuming it the pendulum has kept perfect time before the change? Note that there are two answers, and perform the calculation to four-digit precision. https://seo-videos.collegephysicsanswers.com/ch16/pe33/ed1ch16pe33.mp4 457 78 3 2018-06-22 yes 2018-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-positions-speed-simple-harmonic-oscillator-half-its-maximum-what-values At what positions is the speed of a simple harmonic oscillator half… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe39/thumbs-ed1ch16pe39-00002.png At what positions is the speed of a simple harmonic oscillator half its maximum? That is, what values of \dfrac{x}{X} give v = \dfrac{ ± v_{max}}{2} , where X is the amplitude of the motion? https://seo-videos.collegephysicsanswers.com/ch16/pe39/ed1ch16pe39.mp4 102 103 3 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-car-has-suspension-system-force-constant-500-times-104-nm-how-much-energy If a car has a suspension system with a force constant of 5.00 x 10^4… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe43/thumbs-ed1ch16pe43-00002.png If a car has a suspension system with a force constant of 5.00 x 10^4 N/m , how much energy must the car’s shocks remove to dampen an oscillation starting with a maximum displacement of 0.0750 m? https://seo-videos.collegephysicsanswers.com/ch16/pe43/ed1ch16pe43.mp4 26 66 5 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wind-gusts-create-ripples-ocean-have-wavelength-500-cm-and-propagate-200-ms-what Wind gusts create ripples on the ocean that have a wavelength of 5.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe49/thumbs-ed1ch16pe49-00002.png Wind gusts create ripples on the ocean that have a wavelength of 5.00 cm and propagate at 2.00 m/s. What is their frequency? https://seo-videos.collegephysicsanswers.com/ch16/pe49/ed1ch16pe49.mp4 22 158 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/scouts-camp-shake-rope-bridge-they-have-just-crossed-and-observe-wave-crests-be Scouts at a camp shake the rope bridge they have just crossed and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe51/thumbs-ed1ch16pe51-00002.png Scouts at a camp shake the rope bridge they have just crossed and observe the wave crests to be 8.00 m apart. If they shake it the bridge twice per second, what is the propagation speed of the waves? https://seo-videos.collegephysicsanswers.com/ch16/pe51/ed1ch16pe51.mp4 22 80 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-has-two-horns-one-emitting-frequency-199-hz-and-other-emitting-frequency-203 A car has two horns, one emitting a frequency of 199 Hz and the other… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe57/thumbs-ed1ch16pe57-00002.png A car has two horns, one emitting a frequency of 199 Hz and the other emitting a frequency of 203 Hz. What beat frequency do they produce? https://seo-videos.collegephysicsanswers.com/ch16/pe57/ed1ch16pe57.mp4 27 78 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/your-ear-capable-differentiating-sounds-arrive-ear-just-100-ms-apart-what Your ear is capable of differentiating sounds that arrive at the ear… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe55/thumbs-ed1ch16pe55-00002.png Your ear is capable of differentiating sounds that arrive at the ear just 1.00 ms apart. What is the minimum distance between two speakers that produce sounds that arrive at noticeably different times on a day when the speed of sound is 340 m/s? https://seo-videos.collegephysicsanswers.com/ch16/pe55/ed1ch16pe55.mp4 113 100 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-tuning-forks-having-frequencies-460-and-464-hz-are-struck-simultaneously Two tuning forks having frequencies of 460 and 464 Hz are struck… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe59/thumbs-ed1ch16pe59-00002.png Two tuning forks having frequencies of 460 and 464 Hz are struck simultaneously. What average frequency will you hear, and what will the beat frequency be? https://seo-videos.collegephysicsanswers.com/ch16/pe59/ed1ch16pe59.mp4 54 117 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ultrasound-intensity-150-times-102-wm2-produced-rectangular-head-medical-imaging Ultrasound of intensity 1.50 x 10^2 W/m ^2 is produced by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe63/thumbs-ed1ch16pe63-00002.png Ultrasound of intensity 1.50 x 10^2 W/m ^2 is produced by the rectangular head of a medical imaging device measuring 3.00 by 5.00 cm. What is its power output? https://seo-videos.collegephysicsanswers.com/ch16/pe63/ed1ch16pe63.mp4 42 119 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/energy-sun-arrives-top-earths-atmosphere-intensity-130-kwm2-how-long-does-it Energy from the Sun arrives at the top of the Earth’s atmosphere with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe67/thumbs-ed1ch16pe67-00002.png Energy from the Sun arrives at the top of the Earth’s atmosphere with an intensity of 1.30 kW/m ^2 How long does it take for 1.8 x 109 J to arrive on an area of 1.00 m ^2? https://seo-videos.collegephysicsanswers.com/ch16/pe67/ed1ch16pe67.mp4 61 86 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/formula-f-kx-what-does-minus-sign-indicate-it-indicates-restoring-force In the formula F=-kx, what does the minus sign indicate? (a) It… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap03/thumbs-ed1ch16ap03-00002.png In the formula F=-kx, what does the minus sign indicate? (a) It indicates that the restoring force is in the direction of the displacement.(b) It indicates that the restoring force is in the direction opposite the displacement.(c) It indicates that mechanical energy in the system decreases when a system undergoes oscillation.(d) None of the above https://seo-videos.collegephysicsanswers.com/ch16/ap03/ed1ch16ap03.mp4 33 2 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-represents-distance-how-much-ground-particle-covers-moved Which of the following represents the distance (how much ground the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap01/thumbs-ed1ch16ap01-00002.png Which of the following represents the distance (how much ground the particle covers) moved by a particle in a simple harmonic motion in one time period? (Here, A represents the amplitude of the oscillation.) (a) 0 cm(b) A cm(c) 2A cm(d) 4A cm https://seo-videos.collegephysicsanswers.com/ch16/ap01/ed1ch16ap01.mp4 62 16 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-attached-spring-oscillates-and-completes-50-full-cycles-30-s-what-time A mass attached to a spring oscillates and completes 50 full cycles… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap05/thumbs-ed1ch16ap05-00002.png A mass attached to a spring oscillates and completes 50 full cycles in 30 s. What is the time period and frequency of this system? https://seo-videos.collegephysicsanswers.com/ch16/ap05/ed1ch16ap05.mp4 20 6 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particle-mass-100-g-undergoes-simple-harmonic-motion-restoring-force-provided A particle of mass 100 g undergoes a simple harmonic motion. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap07/thumbs-ed1ch16ap07-00002.png A particle of mass 100 g undergoes a simple harmonic motion. The restoring force is provided by a spring with a spring constant of 40 N·m−1. What is the period of oscillation? (a) 10 \pi(b) 0.5 \pi(c) 0.1 \pi(d) 1 \pi https://seo-videos.collegephysicsanswers.com/ch16/ap07/ed1ch16ap07.mp4 26 12 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pendulum-mass-200-g-undergoes-simple-harmonic-motion-when-acted-upon-force-15-n A pendulum of mass 200 g undergoes simple harmonic motion when acted… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap09/thumbs-ed1ch16ap09-00002.png A pendulum of mass 200 g undergoes simple harmonic motion when acted upon by a force of 15 N. The pendulum crosses the point of equilibrium at a speed of 5 m/s. What is the energy of the pendulum at the center of the oscillation? https://seo-videos.collegephysicsanswers.com/ch16/ap09/ed1ch16ap09.mp4 43 12 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-gives-correct-relation-between-acceleration-due-gravity-and Which of the following gives the correct relation between the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap11/thumbs-ed1ch16ap11-00002.png Which of the following gives the correct relation between the acceleration due to gravity and period of a pendulum? (a) g=\dfrac{2\pi L}{T^2}(b) g=\dfrac{4\pi^2 L}{T^2}(c) g=\dfrac{2\pi L}{T}(d) g=\dfrac{2\pi^2 L}{T} https://seo-videos.collegephysicsanswers.com/ch16/ap11/ed1ch16ap11.mp4 41 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/non-conservative-damping-force-removes-energy-system-which-form-mechanical The non-conservative damping force removes energy from a system in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap15/thumbs-ed1ch16ap15-00002.png The non-conservative damping force removes energy from a system in which form? (a) Mechanical energy(b) Electrical energy(c) Thermal energy(d) None of the above https://seo-videos.collegephysicsanswers.com/ch16/ap15/ed1ch16ap15.mp4 15 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-1-kg-undergoes-simple-harmonic-motion-amplitude-1-m-if-period-oscillation-1 A mass of 1 kg undergoes simple harmonic motion with amplitude of 1… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap13/thumbs-ed1ch16ap13-00002.png A mass of 1 kg undergoes simple harmonic motion with amplitude of 1 m. If the period of the oscillation is 1 s, calculate the internal energy of the system. https://seo-videos.collegephysicsanswers.com/ch16/ap13/ed1ch16ap13.mp4 84 36 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/05-kg-object-connected-spring-undergoes-oscillatory-motion-there-friction A 0.5-kg object is connected to a spring that undergoes oscillatory… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap17/thumbs-ed1ch16ap17-00002.png A 0.5-kg object is connected to a spring that undergoes oscillatory motion. There is friction between the object and the surface it is kept on given by coefficient of friction \mu_k = 0.06. If the object is released 0.2 m from equilibrium, what is the distance that the object travels? Given that the force constant of the spring is 50 N/m and the frictional force between the objects is 0.294 N. https://seo-videos.collegephysicsanswers.com/ch16/ap17/ed1ch16ap17.mp4 239 10 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1651-below-shows-graph-propagation-mechanical-wave-what-wavelength-wave Figure 16.51 below shows a graph of the propagation of a mechanical… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap23/thumbs-ed1ch16ap23-00002.png Figure 16.51 below shows a graph of the propagation of a mechanical wave. What is the wavelength of this wave? https://seo-videos.collegephysicsanswers.com/ch16/ap23/ed1ch16ap23.mp4 32 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-difference-between-waves-coming-tuning-fork-and-electromagnetic-waves What is the difference between the waves coming from a tuning fork… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap19/thumbs-ed1ch16ap19-00002.png What is the difference between the waves coming from a tuning fork and electromagnetic waves? https://seo-videos.collegephysicsanswers.com/ch16/ap19/ed1ch16ap19.mp4 181 6 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/why-sound-produced-tambourine-different-produced-drums Why is the sound produced by a tambourine different from that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap21/thumbs-ed1ch16ap21-00002.png Why is the sound produced by a tambourine different from that produced by drums? https://seo-videos.collegephysicsanswers.com/ch16/ap21/ed1ch16ap21.mp4 66 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-principle-superposition-figures-show-changes-wave-amplitude Explain the principle of superposition with figures that show the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap25/thumbs-ed1ch16ap25-00002.png Explain the principle of superposition with figures that show the changes in the wave amplitude. https://seo-videos.collegephysicsanswers.com/ch16/ap25/ed1ch16ap25.mp4 75 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/string-fixed-both-sides-it-snapped-both-ends-same-time-applying-equal-force-what A string is fixed on both sides. It is snapped from both ends at the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap27/thumbs-ed1ch16ap27-00002.png A string is fixed on both sides. It is snapped from both ends at the same time by applying an equal force. What happens to the shape of the waves generated in the string? Also, will you observe an overlap of waves? https://seo-videos.collegephysicsanswers.com/ch16/ap27/ed1ch16ap27.mp4 78 6 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-sine-waves-travel-same-direction-medium-amplitude-each-wave-and-phase Two sine waves travel in the same direction in a medium. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/ap29/thumbs-ed1ch16ap29-00002.png Two sine waves travel in the same direction in a medium. The amplitude of each wave is A, and the phase difference between the two is 180°. What is the resultant amplitude? (a) 2A(b) 3A(c) 0(d) 9A https://seo-videos.collegephysicsanswers.com/ch16/ap29/ed1ch16ap29.mp4 66 4 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/starting-formula-moment-inertia-rod-rotated-around-axis-through-one-end Starting with the formula for the moment of inertia of a rod rotated… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe18/thumbs-ed1ch10pe18-00002.png Starting with the formula for the moment of inertia of a rod rotated around an axis through one end perpendicular to its length \left ( I = \dfrac{Ml^2}{3} \right ) , prove that the moment of inertia of a rod rotated about an axis through its center perpendicular to its length is I = \dfrac{Ml^2}{12} . You will find the graphics in Figure 10.12 useful in visualizing these rotations.You will need the [parallel axis theorem](http://hyperphysics.phy-astr.gsu.edu/hbase/parax.html), a derivation of which is offered by [AK Lectures](https://aklectures.com/lecture/proof-of-parallel-axis-theorem). https://seo-videos.collegephysicsanswers.com/ch10/pe18/ed1ch10pe18.mp4 178 134 5 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/advertisement-claims-800-kg-car-aided-its-200-kg-flywheel-which-can-accelerate An advertisement claims that an 800-kg car is aided by its 20.0-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe20/thumbs-ed1ch10pe20-00002.png An advertisement claims that an 800-kg car is aided by its 20.0-kg flywheel, which can accelerate the car from rest to a speed of 30.0 m/s. The flywheel is a disk with a 0.150-m radius. (a) Calculate the angular velocity the flywheel must have if 95.0% of its rotational energy is used to get the car up to speed. (b) What is unreasonable about the result? (c) Which premise is unreasonable or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch10/pe20/ed1ch10pe20.mp4 279 126 4 2020-03-31 yes 2020-03-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/surface-temperature-sun-about-5750-k-what-temperature-fahrenheit-scale The surface temperature of the Sun is about 5750 K. What is this… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe05/thumbs-ed1ch13pe05-00002.png The surface temperature of the Sun is about 5750 K. What is this temperature on the Fahrenheit scale? https://seo-videos.collegephysicsanswers.com/ch13/pe05/ed1ch13pe05.mp4 73 304 5 2018-06-27 yes 2018-06-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-cold-front-blows-your-locale-and-drops-temperature-400-fahrenheit (a) Suppose a cold front blows into your locale and drops the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe07/thumbs-ed1ch13pe07-00002.png (a) Suppose a cold front blows into your locale and drops the temperature by 40.0 Fahrenheit degrees. How many degrees Celsius does the temperature decrease when there is a 40.0° F decrease in temperature? (b) Show that any change in temperature in Fahrenheit degrees is nine-fifths the change in Celsius degrees. https://seo-videos.collegephysicsanswers.com/ch13/pe07/ed1ch13pe07.mp4 114 115 4 2018-06-27 yes 2018-06-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-600-l-gasoline-originally-150circtextrmc-will-expand-611-l-when-it-warms Show that 60.0 L of gasoline originally at 15.0° C will expand to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe15/thumbs-ed1ch13pe15-00002.png Show that 60.0 L of gasoline originally at 15.0° C will expand to 61.1 L when it warms to 35.0° C as claimed in Example 13.4. https://seo-videos.collegephysicsanswers.com/ch13/pe15/ed1ch13pe15.mp4 43 88 3.7 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/physicist-makes-cup-instant-coffee-and-notices-coffee-cools-its-level-drops-300 A physicist makes a cup of instant coffee and notices that, as the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe19/thumbs-ed1ch13pe19-00002.png A physicist makes a cup of instant coffee and notices that, as the coffee cools, its level drops 3.00 mm in the glass cup. Show that this decrease cannot be due to thermal contraction by calculating the decrease in level if the 350 cm ^3 of coffee is in a 7.00-cm-diameter cup and decreases in temperature from 95.0° C to 45.0° C (Most of the drop in level is actually due to escaping bubbles of air.) https://seo-videos.collegephysicsanswers.com/ch13/pe19/ed1ch13pe19.mp4 354 177 5 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/convert-absolute-pressure-700-times-105-nm2-gauge-pressure-textrmlbin2-value-was Convert an absolute pressure of 7.00 x 10^5 N/m ^2 to gauge pressure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe23/thumbs-ed1ch13pe23-00002.png Convert an absolute pressure of 7.00 x 10^5 N/m ^2 to gauge pressure in lb/in ^2. (This value was stated to be just less than 90.0 lb/in ^2 in Example 13.9. Is it?) https://seo-videos.collegephysicsanswers.com/ch13/pe23/ed1ch13pe23.mp4 41 96 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-beta-3alpha-calculating-change-volume-delta-v-cube-sides-length-l Show that \beta = 3\alpha, by calculating the change in volume \Delta… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe21/thumbs-ed1ch13pe21-00002.png Show that \beta = 3\alpha, by calculating the change in volume \Delta V of a cube with sides of length L. https://seo-videos.collegephysicsanswers.com/ch13/pe21/ed1ch13pe21.mp4 262 54 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unreasonable-results-suppose-you-wish-shoot-supplies-straight-astronauts-orbit **Unreasonable Results** Suppose you wish to shoot supplies straight… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe68/thumbs-ed1ch03pe68-00002.png **Unreasonable Results** Suppose you wish to shoot supplies straight up to astronauts in an orbit 36,000 km above the surface of the Earth. (a) At what velocity must the supplies be launched? (b) What is unreasonable about this velocity? (c) Is there a problem with the relative velocity between the supplies and the astronauts when the supplies reach their maximum height? (d) Is the premise unreasonable or is the available equation inapplicable? Explain your answer. https://seo-videos.collegephysicsanswers.com/ch03/pe68/ed1ch03pe68.mp4 170 21 5 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-student-launches-ball-initial-horizontal-velocity-elevation-2-meters In an experiment, a student launches a ball with an initial… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/ap02/thumbs-ed1ch03ap02-00002.png In an experiment, a student launches a ball with an initial horizontal velocity at an elevation 2 meters above ground. The ball follows a parabolic trajectory until it hits the ground. Which of the following accurately describes the graph of the ball's vertical acceleration versus time (taking the downward direction to be negative)? (a) A negative value that does not change with time(b) A gradually increasing negative value (straight line)(c) An increasing rate of negative values over time(d) (parabolic curve)(e) Zero at all times since the initial motion is horizontal https://seo-videos.collegephysicsanswers.com/ch03/ap02/ed1ch03ap02.mp4 112 23 3 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-launched-vertically-upward-vertical-position-ball-recorded-various-points A ball is launched vertically upward. The vertical position of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/ap04/thumbs-ed1ch03ap04-00002.png A ball is launched vertically upward. The vertical position of the ball is recorded at various points in time in the table shown. Which of the following correctly describes the graph of the ball's vertical velocity versus time?(a) Always positive, steadily decreasing(b) Always positive, constant(c) Initially positive, steadily decreasing, becoming negative at the end(d) Initially zero, steadily getting more and more negative https://seo-videos.collegephysicsanswers.com/ch03/ap04/ed1ch03ap04.mp4 143 14 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-distance-and-velocity-data-figure-362-find-rate-expansion-function-distance (a) Use the distance and velocity data in Figure 3.62 to find the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe64/thumbs-ed1ch03pe64-00002.png (a) Use the distance and velocity data in Figure 3.62 to find the rate of expansion as a function of distance. (b) If you extrapolate back in time, how long ago would all of the galaxies have been at approximately the same position? The two parts of this problem give you some idea of how the Hubble constant for universal expansion and the time back to the Big Bang are determined, respectively. https://seo-videos.collegephysicsanswers.com/ch03/pe64/ed1ch03pe64.mp4 215 87 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/text-it-was-shown-dfracnv-268-times-1025-m-3-gas-stp-show-quantity-equivalent In the text, it was shown that \dfrac{N}{V} = 2.68 x 10^{25} m ^{-3}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe27/thumbs-ed1ch13pe27-00002.png In the text, it was shown that \dfrac{N}{V} = 2.68 x 10^{25} m ^{-3} for gas at STP. (a) Show that this quantity is equivalent to \dfrac{N}{V} = 2.68 x 10^{19} cm ^{-3}, as stated. (b) About how many atoms are there in one \mu m ^3 (a cubic micrometer) at STP? (c) What does your answer to part (b) imply about the separation of atoms and molecules? https://seo-videos.collegephysicsanswers.com/ch13/pe27/ed1ch13pe27.mp4 177 59 2.5 2018-06-29 yes 2018-06-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-number-moles-200-l-gas-350circtextrmc-and-under-741-times-107-nm2-pressure Find the number of moles in 2.00 L of gas at 35.0° C and under 7.41… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe35/thumbs-ed1ch13pe35-00002.png Find the number of moles in 2.00 L of gas at 35.0° C and under 7.41 x 10^7 N/m ^2 of pressure. https://seo-videos.collegephysicsanswers.com/ch13/pe35/ed1ch13pe35.mp4 45 81 5 2018-06-30 yes 2018-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-student-launches-ball-initial-horizontal-velocity-500-meterssec In an experiment, a student launches a ball with an initial… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/ap06/thumbs-ed1ch03ap06-00002.png In an experiment, a student launches a ball with an initial horizontal velocity of 5.00 meters/sec at an elevation 2.00 meters above ground. Draw and clearly label with appropriate values and units a graph of the ball's horizontal velocity vs. time and the ball's vertical velocity vs. time. The graph should cover the motion from the instant after the ball is launched until the instant before it hits the ground. Assume the downward direction is negative for this problem. https://seo-videos.collegephysicsanswers.com/ch03/ap06/ed1ch03ap06.mp4 242 37 5 2019-11-05 yes 2019-11-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-earth-moon-system-construct-problem-which-you-calculate-total-angular Consider the Earth-Moon system. Construct a problem in which you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe42/thumbs-ed1ch10pe42-00002.png Consider the Earth-Moon system. Construct a problem in which you calculate the total angular momentum of the system including the spins of the Earth and the Moon on their axes and the orbital angular momentum of the Earth-Moon system in its nearly monthly rotation. Calculate what happens to the Moon’s orbital radius if the Earth’s rotation decreases due to tidal drag. Among the things to be considered are the amount by which the Earth’s rotation slows and the fact that the Moon will continue to have one side always facing the Earth. https://seo-videos.collegephysicsanswers.com/ch10/pe42/ed1ch10pe42.mp4 818 25 5 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/develop-muscle-tone-woman-lifts-200-kg-weight-held-her-hand-she-uses-her-biceps To develop muscle tone, a woman lifts a 2.00-kg weight held in her… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe30/thumbs-ed1ch10pe30-00002.png To develop muscle tone, a woman lifts a 2.00-kg weight held in her hand. She uses her biceps muscle to flex the lower arm through an angle of 60.0°. (a) What is the angular acceleration if the weight is 24.0 cm from the elbow joint, her forearm has a moment of inertia of 0.250 kg ⋅ m2 , and the net force she exerts is 750 N at an effective perpendicular lever arm of 2.00 cm? (b) How much work does she do? https://seo-videos.collegephysicsanswers.com/ch10/pe30/ed1ch10pe30.mp4 175 193 5 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-moment-inertia-object-rolls-without-slipping-down-200-m-high-incline What is the moment of inertia of an object that rolls without… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe32/thumbs-ed1ch10pe32-00002.png What is the moment of inertia of an object that rolls without slipping down a 2.00-m-high incline starting from rest, and has a final velocity of 6.00 m/s? Express the moment of inertia as a multiple of MR^2 , where M is the mass of the object and R is its radius. https://seo-videos.collegephysicsanswers.com/ch10/pe32/ed1ch10pe32.mp4 144 247 3.5 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-start-antique-car-exerting-force-300-n-its-crank-0250-s-what-angular Suppose you start an antique car by exerting a force of 300 N on its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe38/thumbs-ed1ch10pe38-00002.png Suppose you start an antique car by exerting a force of 300 N on its crank for 0.250 s. What angular momentum is given to the engine if the handle of the crank is 0.300 m from the pivot and the force is exerted to create maximum torque the entire time? https://seo-videos.collegephysicsanswers.com/ch10/pe38/ed1ch10pe38.mp4 57 280 5 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/axis-earth-makes-235circ-angle-direction-perpendicular-plane-earths-orbit-shown The axis of Earth makes a 23.5° angle with a direction perpendicular… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe48/thumbs-ed1ch10pe48-00002.png The axis of Earth makes a 23.5° angle with a direction perpendicular to the plane of Earth’s orbit. As shown in Figure 10.41, this axis precesses, making one complete rotation in 25,780 y. (a) Calculate the change in angular momentum in half this time. (b) What is the average torque producing this change in angular momentum? (c) If this torque were created by a single force (it is not) acting at the most effective point on the equator, what would its magnitude be? https://seo-videos.collegephysicsanswers.com/ch10/pe48/ed1ch10pe48.mp4 197 68 2020-04-05 yes 2020-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-incandescent-light-bulbs-are-filled-argon-gas-what-vrms-argon-atoms-near Some incandescent light bulbs are filled with argon gas. What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe39/thumbs-ed1ch13pe39-00002.png Some incandescent light bulbs are filled with argon gas. What is v_{rms} for argon atoms near the filament, assuming their temperature is 2500 K? https://seo-videos.collegephysicsanswers.com/ch13/pe39/ed1ch13pe39.mp4 86 151 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/escape-velocity-moon-much-smaller-earth-and-only-238-kms-what-temperature-would The escape velocity from the Moon is much smaller than from Earth and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe43/thumbs-ed1ch13pe43-00002.png The escape velocity from the Moon is much smaller than from Earth and is only 2.38 km/s. At what temperature would hydrogen molecules (molecular mass is equal to 2.016 g/mol) have an average velocity v_{rms} equal to the Moon’s escape velocity? https://seo-videos.collegephysicsanswers.com/ch13/pe43/ed1ch13pe43.mp4 117 144 4 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-average-velocity-vrms-carbon-dioxide-molecules-molecular-mass-equal-440 Suppose that the average velocity, v_{rms}, of carbon dioxide… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe45/thumbs-ed1ch13pe45-00002.png Suppose that the average velocity, v_{rms}, of carbon dioxide molecules (molecular mass is equal to 44.0 g/mol) in a flame is found to be 1.05 x 10^5 m/s . What temperature does this represent? https://seo-videos.collegephysicsanswers.com/ch13/pe45/ed1ch13pe45.mp4 93 123 3 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/much-gas-near-sun-atomic-hydrogen-its-temperature-would-have-be-15-times-107-k Much of the gas near the Sun is atomic hydrogen. Its temperature… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe47/thumbs-ed1ch13pe47-00002.png Much of the gas near the Sun is atomic hydrogen. Its temperature would have to be 1.5 x 10^7 K for the average velocity, v_{rms} to equal the escape velocity from the Sun. What is that velocity? https://seo-videos.collegephysicsanswers.com/ch13/pe47/ed1ch13pe47.mp4 64 66 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dry-air-781-nitrogen-what-partial-pressure-nitrogen-when-atmospheric-pressure Dry air is 78.1% nitrogen. What is the partial pressure of nitrogen… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe49/thumbs-ed1ch13pe49-00002.png Dry air is 78.1% nitrogen. What is the partial pressure of nitrogen when the atmospheric pressure is 1.01 x 10^5 N/m ^2? https://seo-videos.collegephysicsanswers.com/ch13/pe49/ed1ch13pe49.mp4 55 68 4 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pressure-cookers-increase-cooking-speed-raising-boiling-temperature-water-above Pressure cookers increase cooking speed by raising the boiling… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe51/thumbs-ed1ch13pe51-00002.png Pressure cookers increase cooking speed by raising the boiling temperature of water above its value at atmospheric pressure. (a) What pressure is necessary to raise the boiling point to 120.0° C ? (b) What gauge pressure does this correspond to? https://seo-videos.collegephysicsanswers.com/ch13/pe51/ed1ch13pe51.mp4 40 48 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-atmospheric-pressure-top-mt-everest-day-when-water-boils-there-temperature What is the atmospheric pressure on top of Mt. Everest on a day when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe53/thumbs-ed1ch13pe53-00002.png What is the atmospheric pressure on top of Mt. Everest on a day when water boils there at a temperature of 70.0° C ? https://seo-videos.collegephysicsanswers.com/ch13/pe53/ed1ch13pe53.mp4 34 35 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-relative-humidity-250circtextrmc-day-when-air-contains-180-gm3-water-vapor What is the relative humidity on a 25.0° C day when the air contains… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe55/thumbs-ed1ch13pe55-00002.png What is the relative humidity on a 25.0° C day when the air contains 18.0 g/m ^3 of water vapor? https://seo-videos.collegephysicsanswers.com/ch13/pe55/ed1ch13pe55.mp4 33 42 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/deep-sea-diver-should-breathe-gas-mixture-has-same-oxygen-partial-pressure-sea A deep-sea diver should breathe a gas mixture that has the same… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe57/thumbs-ed1ch13pe57-00002.png A deep-sea diver should breathe a gas mixture that has the same oxygen partial pressure as at sea level, where dry air contains 20.9% oxygen and has a total pressure of 1.01 x 10^5 N/m ^2. (a) What is the partial pressure of oxygen at sea level? (b) If the diver breathes a gas mixture at a pressure of 2.00 x 10^6 N/m ^2, what percent oxygen should it be to have the same oxygen partial pressure as at sea level? https://seo-videos.collegephysicsanswers.com/ch13/pe57/ed1ch13pe57.mp4 119 44 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/air-human-lungs-has-temperature-370circtextrmc-and-saturation-vapor-density-440 Air in human lungs has a temperature of 37.0° C and a saturation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe59/thumbs-ed1ch13pe59-00002.png Air in human lungs has a temperature of 37.0° C and a saturation vapor density of 44.0 g/m ^3. (a) If 2.00 L of air is exhaled and very dry air inhaled, what is the maximum loss of water vapor by the person? (b) Calculate the partial pressure of water vapor having this density, and compare it with the vapor pressure of 6.31 x 10^3 N/m ^2 . https://seo-videos.collegephysicsanswers.com/ch13/pe59/ed1ch13pe59.mp4 160 28 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/late-autumn-day-relative-humidity-450-and-temperature-200circtextrmc-what-will Late on an autumn day, the relative humidity is 45.0% and the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe61/thumbs-ed1ch13pe61-00002.png Late on an autumn day, the relative humidity is 45.0% and the temperature is 20.0° C . What will the relative humidity be that evening when the temperature has dropped to 10.0° C , assuming constant water vapor density? https://seo-videos.collegephysicsanswers.com/ch13/pe61/ed1ch13pe61.mp4 73 20 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/boiling-point-water-increases-depth-because-pressure-increases-depth-what-depth The boiling point of water increases with depth because pressure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe65/thumbs-ed1ch13pe65-00002.png The boiling point of water increases with depth because pressure increases with depth. At what depth will fresh water have a boiling point of 150° C , if the surface of the water is at sea level? https://seo-videos.collegephysicsanswers.com/ch13/pe65/ed1ch13pe65.mp4 103 12 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-dew-point-temperature-which-100-relative-humidity-would-occur-day-when What is the dew point (the temperature at which 100% relative… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe63/thumbs-ed1ch13pe63-00002.png What is the dew point (the temperature at which 100% relative humidity would occur) on a day when relative humidity is 39.0% at a temperature of 20.0° C ? https://seo-videos.collegephysicsanswers.com/ch13/pe63/ed1ch13pe63.mp4 243 38 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-moles-cubic-meter-ideal-gas-are-there-pressure-100-times-1014-nm2-and (a) How many moles per cubic meter of an ideal gas are there at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe69/thumbs-ed1ch13pe69-00002.png (a) How many moles per cubic meter of an ideal gas are there at a pressure of 1.00 x 10^{14} N/m ^2 and at 0° C ? (b) What is unreasonable about this result? (c) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch13/pe69/ed1ch13pe69.mp4 146 4 3 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/get-idea-small-effect-temperature-has-archimedes-principle-calculate-fraction To get an idea of the small effect that temperature has on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe67/thumbs-ed1ch13pe67-00002.png To get an idea of the small effect that temperature has on Archimedes’ principle, calculate the fraction of a copper block’s weight that is supported by the buoyant force in 0° C water and compare this fraction with the fraction supported in 95.0° C water. https://seo-videos.collegephysicsanswers.com/ch13/pe67/ed1ch13pe67.mp4 386 18 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/temperature-inside-supernova-explosion-said-be-200-times-1013-k-what-would The temperature inside a supernova explosion is said to be 2.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe71/thumbs-ed1ch13pe71-00002.png The temperature inside a supernova explosion is said to be 2.00 x 10^{13} K . (a) What would the average velocity v_{rms} of hydrogen atoms be? (b) What is unreasonable about this velocity? (c) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch13/pe71/ed1ch13pe71.mp4 79 8 5 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fixed-amount-ideal-gas-kept-container-fixed-volume-absolute-pressure-p-pascals A fixed amount of ideal gas is kept in a container of fixed volume.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap01/thumbs-ed1ch13ap01-00002.png A fixed amount of ideal gas is kept in a container of fixed volume. The absolute pressure P, in pascals, of the gas is plotted as a function of its temperature T, in degrees Celsius. Which of the following are properties of a best fit curve to the data? Select two answers. (a) Having a positive slope(b) Passing through the origin(c) Having zero pressure at a certain negative temperature(d) Approaching zero pressure as temperature approaches infinity https://seo-videos.collegephysicsanswers.com/ch13/ap01/ed1ch13ap01.mp4 109 8 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-samples-ideal-gas-separate-containers-have-same-number-molecules-and-same Two samples of ideal gas in separate containers have the same number… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap03/thumbs-ed1ch13ap03-00002.png Two samples of ideal gas in separate containers have the same number of molecules and the same temperature, but the molecular mass of gas X is greater than that of gas Y. Which of the following correctly compares the average speed of the molecules of the gases and the average force the gases exert on their respective containers? Average Speed of MoleculesAverage Force on Container(a)Greater for gas XGreater for gas X(b)Greater for gas XThe forces cannot be compared without knowing the volumes of the gases.(c)Greater for gas YGreater for gas Y(d)Greater for gas YThe forces cannot be compared without knowing the volumes of the gases. https://seo-videos.collegephysicsanswers.com/ch13/ap03/ed1ch13ap03.mp4 97 8 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1338-below-graph-shows-maxwell-boltzmann-distribution-molecular-speeds Figure 13.38 below is a graph that shows the Maxwell-Boltzmann… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap05/thumbs-ed1ch13ap05-00002.png Figure 13.38 below is a graph that shows the Maxwell-Boltzmann distribution of molecular speeds in an ideal gas for two temperatures, T1 and T2. Which of the following statements is false? (a) T1 is lower than T2(b) The rms speed at T1 is higher than that at T2.(c) The peak of each graph shows the most probable speed at the corresponding temperature.(d) None of the above. https://seo-videos.collegephysicsanswers.com/ch13/ap05/ed1ch13ap05.mp4 143 4 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-kinetic-energy-nitrogen-molecule-n2-if-its-rms-speed-560-ms-what What is the average kinetic energy of a nitrogen molecule (N_2) if… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/ap07/thumbs-ed1ch13ap07-00002.png What is the average kinetic energy of a nitrogen molecule (N_2) if its rms speed is 560 m/s? At what temperature is this rms speed achieved? https://seo-videos.collegephysicsanswers.com/ch13/ap07/ed1ch13ap07.mp4 104 8 2018-07-15 yes 2018-07-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/temperature-near-center-sun-thought-be-15-million-degrees-celsius-15-times The temperature near the center of the Sun is thought to be 15… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe05/thumbs-ed1ch19pe05-00002.png The temperature near the center of the Sun is thought to be 15 million degrees Celsius (1.5 x 10^{7} ° C ). Through what voltage must a singly charged ion be accelerated to have the same energy as the average kinetic energy of ions at this temperature? https://seo-videos.collegephysicsanswers.com/ch19/pe05/ed1ch19pe05.mp4 93 91 3.7 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mercury-commonly-supplied-flasks-containing-345-kg-about-76-lb-what-volume Mercury is commonly supplied in flasks containing 34.5 kg (about 76… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe02/thumbs-ed1ch11pe02-00002.png Mercury is commonly supplied in flasks containing 34.5 kg (about 76 lb). What is the volume in liters of this much mercury? https://seo-videos.collegephysicsanswers.com/ch11/pe02/ed1ch11pe02.mp4 84 301 5 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/straightforward-method-finding-density-object-measure-its-mass-and-then-measure A straightforward method of finding the density of an object is to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe04/thumbs-ed1ch11pe04-00002.png A straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. What is the density of a 240-g rock that displaces 89.0 cm ^3 of water? (Note that the accuracy and practical applications of this technique are more limited than a variety of others that are based on Archimedes’ principle.) https://seo-videos.collegephysicsanswers.com/ch11/pe04/ed1ch11pe04.mp4 22 178 5 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rectangular-gasoline-tank-can-hold-500-kg-gasoline-when-full-what-depth-tank-if (a) A rectangular gasoline tank can hold 50.0 kg of gasoline when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe06/thumbs-ed1ch11pe06-00002.png (a) A rectangular gasoline tank can hold 50.0 kg of gasoline when full. What is the depth of the tank if it is 0.500-m wide by 0.900-m long? (b) Discuss whether this gas tank has a reasonable volume for a passenger car. https://seo-videos.collegephysicsanswers.com/ch11/pe06/ed1ch11pe06.mp4 127 324 4.7 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-relatively-little-empty-space-between-atoms-solids-and-liquids-so-average There is relatively little empty space between atoms in solids and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe10/thumbs-ed1ch11pe10-00002.png There is relatively little empty space between atoms in solids and liquids, so that the average density of an atom is about the same as matter on a macroscopic scale—approximately 10^3 kg/m ^3. The nucleus of an atom has a radius about 10^{-5} that of the atom and contains nearly all the mass of the entire atom. (a) What is the approximate density of a nucleus? (b) One remnant of a supernova, called a neutron star, can have the density of a nucleus. What would be the radius of a neutron star with a mass 10 times that of our Sun (the radius of the Sun is 7 x 10^{8} m )? https://seo-videos.collegephysicsanswers.com/ch11/pe10/ed1ch11pe10.mp4 140 250 4 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-depth-mercury-creates-pressure-100-atm What depth of mercury creates a pressure of 1.00 atm? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe14/thumbs-ed1ch11pe14-00002.png What depth of mercury creates a pressure of 1.00 atm? https://seo-videos.collegephysicsanswers.com/ch11/pe14/ed1ch11pe14.mp4 86 239 5 2020-04-06 yes 2020-04-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lightning-bolt-strikes-tree-moving-200-c-charge-through-potential-difference-100 A lightning bolt strikes a tree, moving 20.0 C of charge through a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe07/thumbs-ed1ch19pe07-00002.png A lightning bolt strikes a tree, moving 20.0 C of charge through a potential difference of 1.00 x 10^2 MV . (a) What energy was dissipated? (b) What mass of water could be raised from 15° C to the boiling point and then boiled by this energy? (c) Discuss the damage that could be caused to the tree by the expansion of the boiling steam. https://seo-videos.collegephysicsanswers.com/ch19/pe07/ed1ch19pe07.mp4 154 195 4.5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-units-vm-and-nc-electric-field-strength-are-indeed-equivalent Show that units of V/m and N/C for electric field strength are indeed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe13/thumbs-ed1ch19pe13-00002.png Show that units of V/m and N/C for electric field strength are indeed equivalent. https://seo-videos.collegephysicsanswers.com/ch19/pe13/ed1ch19pe13.mp4 67 231 5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-voltage-near-100-cm-diameter-metal-sphere-has-800-c-excess-positive-charge (a) Find the voltage near a 10.0 cm diameter metal sphere that has… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe11/thumbs-ed1ch19pe11-00002.png (a) Find the voltage near a 10.0 cm diameter metal sphere that has 8.00 C of excess positive charge on it. (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch19/pe11/ed1ch19pe11.mp4 102 48 4.5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-density-fluid-which-hydrometer-having-density-0750-gml-floats-920-its Find the density of a fluid in which a hydrometer having a density of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe38/thumbs-ed1ch11pe38-00002.png Find the density of a fluid in which a hydrometer having a density of 0.750 g/mL floats with 92.0% of its volume submerged. https://seo-videos.collegephysicsanswers.com/ch11/pe38/ed1ch11pe38.mp4 59 85 2.3 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/will-electric-field-strength-between-two-parallel-conducting-plates-exceed (a) Will the electric field strength between two parallel conducting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe17/thumbs-ed1ch19pe17-00002.png (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air (3.0 x 10^6 V/m ) if the plates are separated by 2.00 mm and a potential difference of 5.0 x 10^3 V is applied? (b) How close together can the plates be with this applied voltage? https://seo-videos.collegephysicsanswers.com/ch19/pe17/ed1ch19pe17.mp4 52 222 5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/membrane-walls-living-cells-have-surprisingly-large-electric-fields-across-them Membrane walls of living cells have surprisingly large electric… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe19/thumbs-ed1ch19pe19-00002.png Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. (Membranes are discussed in some detail in Nerve Conduction—Electrocardiograms.) What is the voltage across an 8.00 nm–thick membrane if the electric field strength across it is 5.50 MV/m? You may assume a uniform electric field. https://seo-videos.collegephysicsanswers.com/ch19/pe19/ed1ch19pe19.mp4 56 154 5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-maximum-potential-difference-between-two-parallel-conducting-plates Find the maximum potential difference between two parallel conducting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe21/thumbs-ed1ch19pe21-00002.png Find the maximum potential difference between two parallel conducting plates separated by 0.500 cm of air, given the maximum sustainable electric field strength in air to be 3.0 x 10^6 V/m https://seo-videos.collegephysicsanswers.com/ch19/pe21/ed1ch19pe21.mp4 38 120 4.5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-using-pencil-eraser-you-exert-vertical-force-600-n-distance-200-cm-hardwood When using a pencil eraser, you exert a vertical force of 6.00 N at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe39/thumbs-ed1ch05pe39-00002.png When using a pencil eraser, you exert a vertical force of 6.00 N at a distance of 2.00 cm from the hardwood-eraser joint. The pencil is 6.00 mm in diameter and is held at an angle of 20° to the horizontal. (a) By how much does the wood flex perpendicular to its length? (b) How much is it compressed lengthwise? https://seo-videos.collegephysicsanswers.com/ch05/pe39/ed1ch05pe39.mp4 250 148 5 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-potential-0530-times-10-10-m-proton-average-distance-between-proton-and What is the potential 0.530 x 10^{-10} m from a proton (the average… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe25/thumbs-ed1ch19pe25-00002.png What is the potential 0.530 x 10^{-10} m from a proton (the average distance between the proton and electron in a hydrogen atom)? https://seo-videos.collegephysicsanswers.com/ch19/pe25/ed1ch19pe25.mp4 41 211 5 2018-07-27 yes 2018-07-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-work-input-equals-work-output-hydraulic-system-assuming-no-losses (a) Verify that work input equals work output for a hydraulic system… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe28/thumbs-ed1ch11pe28-00002.png (a) Verify that work input equals work output for a hydraulic system assuming no losses to friction. Do this by showing that the distance the output force moves is reduced by the same factor that the output force is increased. Assume the volume of the fluid is constant. (b) What effect would friction within the fluid and between components in the system have on the output force? How would this depend on whether or not the fluid is moving? https://seo-videos.collegephysicsanswers.com/ch11/pe28/ed1ch11pe28.mp4 201 90 3 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-returns-tightrope-walker-studied-example-46-who-created-tension-394 This problem returns to the tightrope walker studied in Example 4.6,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe43/thumbs-ed1ch05pe43-00002.png This problem returns to the tightrope walker studied in Example 4.6, who created a tension of 3.94 x 10^3 N in a wire making an angle 5.0° below the horizontal with each supporting pole. Calculate how much this tension stretches the steel wire if it was originally 15 m long and 0.50 cm in diameter. https://seo-videos.collegephysicsanswers.com/ch05/pe43/ed1ch05pe43.mp4 87 151 5 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-force-20-n-applied-stationary-box-weighing-40-n-box-does-not-move-means When a force of 20 N is applied to a stationary box weighing 40 N,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/ap01/thumbs-ed1ch05ap01-00002.png When a force of 20 N is applied to a stationary box weighing 40 N, the box does not move. This means the coefficient of static friction:(a) is equal to 0.5.(b) is greater than 0.5.(c) is less than 0.5.(d) cannot be determined. https://seo-videos.collegephysicsanswers.com/ch05/ap01/ed1ch05ap01.mp4 58 12 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/block-given-short-push-and-then-slides-constant-friction-across-horizontal-floor A block is given a short push and then slides with constant friction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/ap03/thumbs-ed1ch05ap03-00002.png A block is given a short push and then slides with constant friction across a horizontal floor. Which statement best explains the direction of the force that friction applies on the moving block?(a) Friction will be in the same direction as the block's motion because molecular interactions between the block and the floor will deform the block in the direction of motion.(b) Friction will be in the same direction as the block's motion because thermal energy generated at the interface between the block and the floor adds kinetic energy to the block.(c) Friction will be in the opposite direction of the block's motion because molecular interactions between the block and the floor will deform the block in the opposite direction of motion.(d) Friction will be in the opposite direction of the block's motion because thermal energy generated at the interface between the block and the floor converts some of the block's kinetic energy to potential energy. https://seo-videos.collegephysicsanswers.com/ch05/ap03/ed1ch05ap03.mp4 108 4 2018-03-12 yes 2018-03-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/derive-r-dfracvo2-sin-2thetaog-range-projectile-level-ground-finding-time-t Derive R = \dfrac{v_o^2 \sin 2\theta_o}{g} for the range of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe49/thumbs-ed1ch03pe49-00002.png Derive R = \dfrac{v_o^2 \sin 2\theta_o}{g} for the range of a projectile on level ground by finding the time t at which y becomes zero and substituting this value of t into the expression for x - x_o, noting that R = x - x_o. https://seo-videos.collegephysicsanswers.com/ch03/pe49/ed1ch03pe49.mp4 261 157 4 2018-02-17 yes 2018-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-gauge-pressure-millimeters-mercury-inside-soap-bubble-0100-m-diameter What is the gauge pressure in millimeters of mercury inside a soap… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe56/thumbs-ed1ch11pe56-00002.png What is the gauge pressure in millimeters of mercury inside a soap bubble 0.100 m in diameter? https://seo-videos.collegephysicsanswers.com/ch11/pe56/ed1ch11pe56.mp4 52 30 5 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-1120-prove-buoyant-force-cylinder-equal-weight-fluid-displaced Referring to Figure 11.20, prove that the buoyant force on the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe52/thumbs-ed1ch11pe52-00002.png Referring to Figure 11.20, prove that the buoyant force on the cylinder is equal to the weight of the fluid displaced (Archimedes’ principle). You may assume that the buoyant force is F_2 - F_1 and that the ends of the cylinder have equal areas A. Note that the volume of the cylinder (and that of the fluid it displaces) equals (h_2 - h_1)A. https://seo-videos.collegephysicsanswers.com/ch11/pe52/ed1ch11pe52.mp4 147 46 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-classic-nuclear-physics-experiments-beginning-20th-century-alpha-particle In one of the classic nuclear physics experiments at the beginning of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe33/thumbs-ed1ch19pe33-00002.png In one of the classic nuclear physics experiments at the beginning of the 20th century, an alpha particle was accelerated toward a gold nucleus, and its path was substantially deflected by the Coulomb interaction. If the energy of the doubly charged alpha nucleus was 5.00 MeV, how close to the gold nucleus (79 protons) could it come before being deflected? https://seo-videos.collegephysicsanswers.com/ch19/pe33/ed1ch19pe33.mp4 161 130 4.7 2018-07-28 yes 2018-07-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-final-speed-electron-accelerated-rest-through-voltage-250-mv-negatively (a) What is the final speed of an electron accelerated from rest… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe35/thumbs-ed1ch19pe35-00002.png (a) What is the final speed of an electron accelerated from rest through a voltage of 25.0 MV by a negatively charged Van de Graaff terminal? (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch19/pe35/ed1ch19pe35.mp4 105 55 5 2018-07-28 yes 2018-07-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/scurrilous-con-artists-have-been-known-represent-gold-plated-tungsten-ingots Scurrilous con artists have been known to represent gold- plated… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe50/thumbs-ed1ch11pe50-00002.png Scurrilous con artists have been known to represent gold- plated tungsten ingots as pure gold and sell them to the greedy at prices much below gold value but deservedly far above the cost of tungsten. With what accuracy must you be able to measure the mass of such an ingot in and out of water to tell that it is almost pure tungsten rather than pure gold? https://seo-videos.collegephysicsanswers.com/ch11/pe50/ed1ch11pe50.mp4 129 38 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-pressure-inside-alveolus-having-radius-250times-10-4textrm-m-if-surface What is the pressure inside an alveolus having a radius of 2.50 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe54/thumbs-ed1ch11pe54-00002.png What is the pressure inside an alveolus having a radius of 2.50 x 10^{-4} m if the surface tension of the fluid-lined wall is the same as for soapy water? You may assume the pressure is the same as that created by a spherical bubble. https://seo-videos.collegephysicsanswers.com/ch11/pe54/ed1ch11pe54.mp4 31 54 2020-04-07 yes 2020-04-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-way-force-air-unconscious-persons-lungs-squeeze-balloon-appropriately One way to force air into an unconscious person’s lungs is to squeeze… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe70/thumbs-ed1ch11pe70-00002.png One way to force air into an unconscious person’s lungs is to squeeze on a balloon appropriately connected to the subject. What force must you exert on the balloon with your hands to create a gauge pressure of 4.00 cm water, assuming you squeeze on an effective area of 50.0 cm ^2? https://seo-videos.collegephysicsanswers.com/ch11/pe70/ed1ch11pe70.mp4 87 26 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-equipotential-lines-two-equal-positive-charges-shown-figure-1926-indicate Sketch the equipotential lines for the two equal positive charges… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe37/thumbs-ed1ch19pe37-00002.png Sketch the equipotential lines for the two equal positive charges shown in Figure 19.26. Indicate the direction of increasing potential. https://seo-videos.collegephysicsanswers.com/ch19/pe37/ed1ch19pe37.mp4 152 247 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-ratio-heights-which-water-and-mercury-are-raised-capillary-action-same Calculate the ratio of the heights to which water and mercury are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe66/thumbs-ed1ch11pe66-00002.png Calculate the ratio of the heights to which water and mercury are raised by capillary action in the same glass tube. https://seo-videos.collegephysicsanswers.com/ch11/pe66/ed1ch11pe66.mp4 207 32 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1134a-shows-effect-tube-radius-height-which-capillary-action-can-raise Figure 11.34(a) shows the effect of tube radius on the height to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe58/thumbs-ed1ch11pe58-00002.png Figure 11.34(a) shows the effect of tube radius on the height to which capillary action can raise a fluid. (a) Calculate the height h for water in a glass tube with a radius of 0.900 cm—a rather large tube like the one on the left. (b) What is the radius of the glass tube on the right if it raises water to 4.00 cm? https://seo-videos.collegephysicsanswers.com/ch11/pe58/ed1ch11pe58.mp4 144 52 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-contact-angle-theta-olive-oil-if-capillary-action-raises-it-height-707 Calculate the contact angle \theta for olive oil if capillary action… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe64/thumbs-ed1ch11pe64-00002.png Calculate the contact angle \theta for olive oil if capillary action raises it to a height of 7.07 cm in a glass tube with a radius of 0.100 mm. Is this value consistent with that for most organic liquids? https://seo-videos.collegephysicsanswers.com/ch11/pe64/ed1ch11pe64.mp4 117 61 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-forced-exhalation-such-when-blowing-balloon-diaphragm-and-chest-muscles During forced exhalation, such as when blowing up a balloon, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe68/thumbs-ed1ch11pe68-00002.png During forced exhalation, such as when blowing up a balloon, the diaphragm and chest muscles create a pressure of 60.0 mm Hg between the lungs and chest wall. What force in newtons does this pressure create on the 600 cm ^2 surface area of the diaphragm? https://seo-videos.collegephysicsanswers.com/ch11/pe68/ed1ch11pe68.mp4 68 40 5 2020-04-08 yes 2020-04-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-equipotential-lines-long-distance-charges-shown-figure-1927-indicate Sketch the equipotential lines a long distance from the charges shown… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe39/thumbs-ed1ch19pe39-00002.png Sketch the equipotential lines a long distance from the charges shown in Figure 19.27. Indicate the direction of increasing potential. https://seo-videos.collegephysicsanswers.com/ch19/pe39/ed1ch19pe39.mp4 121 201 4.5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/negative-pressure-250-atm-can-sometimes-be-achieved-device-figure-1143-water A negative pressure of 25.0 atm can sometimes be achieved with the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe80/thumbs-ed1ch11pe80-00002.png A negative pressure of 25.0 atm can sometimes be achieved with the device in Figure 11.43 before the water separates. (a) To what height could such a negative gauge pressure raise water? (b) How much would a steel wire of the same diameter and length as this capillary stretch if suspended from above? https://seo-videos.collegephysicsanswers.com/ch11/pe80/ed1ch11pe80.mp4 218 21 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-miners-wish-remove-water-mine-shaft-pipe-lowered-water-90-m-below-and Some miners wish to remove water from a mine shaft. A pipe is lowered… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe84/thumbs-ed1ch11pe84-00002.png Some miners wish to remove water from a mine shaft. A pipe is lowered to the water 90 m below, and a negative pressure is applied to raise the water. (a) Calculate the pressure needed to raise the water. (b) What is unreasonable about this pressure? (c) What is unreasonable about the premise? https://seo-videos.collegephysicsanswers.com/ch11/pe84/ed1ch11pe84.mp4 214 18 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gauge-pressure-fluid-surrounding-infants-brain-may-rise-high-850-mm-hg-5-12-mm Gauge pressure in the fluid surrounding an infant’s brain may rise as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe72/thumbs-ed1ch11pe72-00002.png Gauge pressure in the fluid surrounding an infant’s brain may rise as high as 85.0 mm Hg (5 to 12 mm Hg is normal), creating an outward force large enough to make the skull grow abnormally large. (a) Calculate this outward force in newtons on each side of an infant’s skull if the effective area of each side is 70.0 cm ^2 . (b) What is the net force acting on the skull? https://seo-videos.collegephysicsanswers.com/ch11/pe72/ed1ch11pe72.mp4 124 28 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-vicinity-charged-insulator-figure-1930-note-its-non (a) Sketch the electric field lines in the vicinity of the charged… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe43/thumbs-ed1ch19pe43-00002.png (a) Sketch the electric field lines in the vicinity of the charged insulator in Figure 19.30. Note its non-uniform charge distribution. (b) Sketch equipotential lines surrounding the insulator. Indicate the direction of increasing potential. https://seo-videos.collegephysicsanswers.com/ch19/pe43/ed1ch19pe43.mp4 65 36 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-pressure-esophagus-200-mm-hg-while-stomach-200-mm-hg-what-height-could If the pressure in the esophagus is −2.00 mm Hg while that in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe74/thumbs-ed1ch11pe74-00002.png If the pressure in the esophagus is −2.00 mm Hg while that in the stomach is +20.0 mm Hg , to what height could stomach fluid rise in the esophagus, assuming a density of 1.10 g/mL? (This movement will not occur if the muscle closing the lower end of the esophagus is working properly.) https://seo-videos.collegephysicsanswers.com/ch11/pe74/ed1ch11pe74.mp4 209 36 5 2020-04-19 yes 2020-04-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-charge-stored-when-550-v-applied-800-pf-capacitor Find the charge stored when 5.50 V is applied to an 8.00 pF capacitor. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe47/thumbs-ed1ch19pe47-00002.png Find the charge stored when 5.50 V is applied to an 8.00 pF capacitor. https://seo-videos.collegephysicsanswers.com/ch19/pe47/ed1ch19pe47.mp4 28 202 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lesser-electric-ray-narcine-bancroftii-maintains-incredible-charge-its-head-and The lesser electric ray (Narcine bancroftii) maintains an incredible… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe45/thumbs-ed1ch19pe45-00002.png The lesser electric ray (Narcine bancroftii) maintains an incredible charge on its head and a charge equal in magnitude but opposite in sign on its tail (Figure 19.31). (a) Sketch the equipotential lines surrounding the ray. (b) Sketch the equipotentials when the ray is near a ship with a conducting surface. (c) How could this charge distribution be of use to the ray? https://seo-videos.collegephysicsanswers.com/ch19/pe45/ed1ch19pe45.mp4 84 38 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prankster-applies-450-v-800-mutextrmf-capacitor-and-then-tosses-it-unsuspecting A prankster applies 450 V to an 80.0 \mu F capacitor and then tosses… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe55/thumbs-ed1ch19pe55-00002.png A prankster applies 450 V to an 80.0 \mu F capacitor and then tosses it to an unsuspecting victim. The victim’s finger is burned by the discharge of the capacitor through 0.200 g of flesh. What is the temperature increase of the flesh? Is it reasonable to assume no phase change? https://seo-videos.collegephysicsanswers.com/ch19/pe55/ed1ch19pe55.mp4 129 44 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mountain-stream-100-m-wide-and-averages-200-m-depth-during-spring-runoff-flow A mountain stream is 10.0 m wide and averages 2.00 m in depth. During… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe16/thumbs-ed1ch12pe16-00002.png A mountain stream is 10.0 m wide and averages 2.00 m in depth. During the spring runoff, the flow in the stream reaches 100,000 m ^3/ s . (a) What is the average velocity of the stream under these conditions? (b) What is unreasonable about this velocity? (c) What is unreasonable or inconsistent about the premises? https://seo-videos.collegephysicsanswers.com/ch12/pe16/ed1ch12pe16.mp4 60 36 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/push-book-across-table-and-observe-it-slow-stop-draw-graphs-showing-books Push a book across a table and observe it slow to a stop.Draw graphs… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap05/thumbs-ed1ch02ap05-00002.png Push a book across a table and observe it slow to a stop.Draw graphs showing the book's position vs. time and velocity vs. time if the direction of its motion is considered positive.Draw graphs showing the book's position vs. time and velocity vs. time if the direction of its motion is considered negative. https://seo-videos.collegephysicsanswers.com/ch02/ap05/ed1ch02ap05.mp4 293 21 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-speed-incompressible-fluid-through-constriction-such-venturi-tube Prove that the speed of an incompressible fluid through a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe14/thumbs-ed1ch12pe14-00002.png Prove that the speed of an incompressible fluid through a constriction, such as in a Venturi tube, increases by a factor equal to the square of the factor by which the diameter decreases. (The converse applies for flow out of a constriction into a larger-diameter region.) https://seo-videos.collegephysicsanswers.com/ch12/pe14/ed1ch12pe14.mp4 153 124 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-comparing-position-distance-and-displacement-correct Which of the following statements comparing position, distance, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap01/thumbs-ed1ch02ap01-00002.png Which of the following statements comparing position, distance, and displacement is correct?(a) An object may record a distance of zero while recording a non-zero displacement.(b) An object may record a non-zero distance while recording a displacement of zero.(c) An object may record a non-zero distance while maintaining a position of zero.(d) An object may record a non-zero displacement while maintaining a position of zero. https://seo-videos.collegephysicsanswers.com/ch02/ap01/ed1ch02ap01.mp4 137 18 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/group-students-has-two-carts-and-b-wheels-turn-negligible-friction-two-carts A group of students has two carts, _A_ and _B_, with wheels that turn… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap03/thumbs-ed1ch02ap03-00002.png A group of students has two carts, _A_ and _B_, with wheels that turn with negligible friction. The two carts travel along a straight horizontal track and eventually collide. Before the collision, cart _A_ travels to the right and cart _B_ is initially at rest. After the collision, the carts stick together.(a) Describe an experimental procedure to determine the velocities of the carts before and after the collision, including all the additional equipment you would need. You may include a labeled diagram of your setup to help in your description. Indicate what measurements you would take and how you would take them. Include enough detail so that another student could carry out your procedure.(b) There will be sources of error in the measurements taken in the experiment both before and after the collision. Which velocity will be more greatly affected by this error: the velocity prior to the collision or the velocity after the collision? Or will both sets of data be affected equally? Justify your answer. https://seo-videos.collegephysicsanswers.com/ch02/ap03/ed1ch02ap03.mp4 189 35 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/observing-spacecraft-land-distant-asteroid-scientists-notice-craft-falling-rate Observing a spacecraft land on a distant asteroid, scientists notice… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap07/thumbs-ed1ch02ap07-00002.png Observing a spacecraft land on a distant asteroid, scientists notice that the craft is falling at a rate of 5 m/s. When it is 100 m closer to the surface of the asteroid, the craft reports a velocity of 8 m/s. According to their data, what is the approximate gravitational acceleration on this asteroid?(a) 0 m/s2(b) 0.03 m/s2(c) 0.20 m/s2(d) 0.65 m/s2(e) 33 m/s2 https://seo-videos.collegephysicsanswers.com/ch02/ap07/ed1ch02ap07.mp4 87 31 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-bernoullis-equation-show-measured-fluid-speed-v-pitot-tube-one-figure-127b (a) Using Bernoulli’s equation, show that the measured fluid speed v… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe24/thumbs-ed1ch12pe24-00002.png (a) Using Bernoulli’s equation, show that the measured fluid speed v for a pitot tube, like the one in Figure 12.7(b), is given by v = \left ( \dfrac{2\rho^\prime gh}{\rho}\right )^\frac{1}{2}, where h is the height of the manometer fluid, \rho^\prime is the density of the manometer fluid, \rho is the density of the moving fluid, and g is the acceleration due to gravity. (Note that v is indeed proportional to the square root of h , as stated in the text.) (b) Calculate v for moving air if a mercury manometer’s h is 0.200 m. https://seo-videos.collegephysicsanswers.com/ch12/pe24/ed1ch12pe24.mp4 173 80 2 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/165-mutextrmf-capacitor-used-conjunction-motor-how-much-energy-stored-it-when A 165 \mu F capacitor is used in conjunction with a motor. How much… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe65/thumbs-ed1ch19pe65-00002.png A 165 \mu F capacitor is used in conjunction with a motor. How much energy is stored in it when 119 V is applied? https://seo-videos.collegephysicsanswers.com/ch19/pe65/ed1ch19pe65.mp4 27 40 5 2018-08-02 yes 2018-08-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-placed-electric-field-120-nc-right-what-resulting-force-electron-133 An electron is placed in an electric field of 12.0 N/C to the right.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap01/thumbs-ed1ch19ap01-00002.png An electron is placed in an electric field of 12.0 N/C to the right. What is the resulting force on the electron? (a) 1.33 x 10^{-20} N right (b) 1.33 x 10^{-20} N left (c) 1.92 x 10^{-18} N right (d) 1.92 x 10^{-18} N left https://seo-videos.collegephysicsanswers.com/ch19/ap01/ed1ch19ap01.mp4 48 4 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/50-c-charge-being-forced-south-60-n-force-what-are-magnitude-and-direction-local A −5.0 C charge is being forced south by a 60 N force. What are the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap03/thumbs-ed1ch19ap03-00002.png A −5.0 C charge is being forced south by a 60 N force. What are the magnitude and direction of the local electric field? (a) 12 N/C South (b) 12 N/C North (c) 300 N/C South (d) 300 N/C North https://seo-videos.collegephysicsanswers.com/ch19/ap03/ed1ch19ap03.mp4 52 6 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/typical-aaa-battery-can-move-2000-c-charge-15-v-how-long-will-run-50-mw-led-1000 A typical AAA battery can move 2000 C of charge at 1.5 V. How long… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap07/thumbs-ed1ch19ap07-00002.png A typical AAA battery can move 2000 C of charge at 1.5 V. How long will this run a 50 mW LED? (a) 1000 minutes(b) 120,000 seconds(c) 15 hours(d) 250 minutes https://seo-videos.collegephysicsanswers.com/ch19/ap07/ed1ch19ap07.mp4 86 4 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-internal-energy-system-consisting-two-point-charges-one-20-mc-and-other-30 What is the internal energy of a system consisting of two point… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap09/thumbs-ed1ch19ap09-00002.png What is the internal energy of a system consisting of two point charges, one 2.0 μC, and the other −3.0 μC, placed 1.2 m away from each other? (a) -3.8 x 10^{-2} J (b) -4.5 x 10^{-2} J (c) 4.5 x 10^{-2} J (d) 3.8 x 10^{-2} J https://seo-videos.collegephysicsanswers.com/ch19/ap09/ed1ch19ap09.mp4 83 4 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/take-square-configuration-point-charges-two-positive-and-two-negative-all-same Take a square configuration of point charges, two positive and two… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap13/thumbs-ed1ch19ap13-00002.png Take a square configuration of point charges, two positive and two negative, all of the same magnitude, with like charges sharing diagonals. What will happen to the internal energy of this system if one of the negative charges becomes a positive charge of the same magnitude? (a) increase(b) decrease(c) no change(d) not enough information https://seo-videos.collegephysicsanswers.com/ch19/ap13/ed1ch19ap13.mp4 162 4 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-plates-are-lying-horizontally-stacked-one-100-cm-above-other-if-upper-plate Two plates are lying horizontally, but stacked with one 10.0 cm above… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap19/thumbs-ed1ch19ap19-00002.png Two plates are lying horizontally, but stacked with one 10.0 cm above the other. If the upper plate is held at +100 V, what is the magnitude and direction of the electric field between the plates if the lower is held at +50.0 V? -50.0 V? (a) 500 V/m, 1500 V/m, down(b) 500 V/m, 1500 V/m, up(c) 1500 V/m, 500 V/m, down(d) 1500 V/m, 500 V/m, up https://seo-videos.collegephysicsanswers.com/ch19/ap19/ed1ch19ap19.mp4 55 4 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-three-parallel-conducting-plates-space-30-cm-between-them-leftmost-one Consider three parallel conducting plates, with a space of 3.0 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap21/thumbs-ed1ch19ap21-00002.png Consider three parallel conducting plates, with a space of 3.0 cm between them. The leftmost one is at a potential of +45 V, the middle one is held at ground, and the rightmost is at a potential of -75 V. What is the magnitude of the average electric field on an electron traveling between the plates? (Assume that the middle one has holes for the electron to go through.) (a) 1500 V/m(b) 2500 V/m(c) 4000 V/m(d) 2000 V/m https://seo-videos.collegephysicsanswers.com/ch19/ap21/ed1ch19ap21.mp4 146 2 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-parallel-plate-capacitor-no-dielectric-material-attached-battery-fixed Consider a parallel plate capacitor, with no dielectric material,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap37/thumbs-ed1ch19ap37-00002.png Consider a parallel plate capacitor, with no dielectric material, attached to a battery with a fixed voltage. What happens when a dielectric is inserted into the capacitor? (a) Nothing changes, except now there is a dielectric in the capacitor.(b) The energy in the system decreases, making it very easy to move the dielectric in.(c) You have to do work to move the dielectric, increasing the energy in the system.(d) The reversed polarity destroys the battery. https://seo-videos.collegephysicsanswers.com/ch19/ap37/ed1ch19ap37.mp4 86 2 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-parallel-plate-capacitor-metal-plates-each-square-shape-100-m-side Consider a parallel plate capacitor with metal plates, each of square… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/ap41/thumbs-ed1ch19ap41-00002.png Consider a parallel plate capacitor with metal plates, each of square shape of 1.00 m on a side, separated by 1.00 mm. What is the energy of this capacitor with 3.00 x 10^3 V applied to it? (a) 3.98 x 10^{-2} J (b) 5.08 x 10^{14} J (c) 1.33 x 10^{-5} J (d) 1.69 x 10^{11} J https://seo-videos.collegephysicsanswers.com/ch19/ap41/ed1ch19ap41.mp4 56 4 2018-08-03 yes 2018-08-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/order-waken-sleeping-child-volume-alarm-clock-tripleunder-new-scenario-how-much In order to waken a sleeping child, the volume on an alarm clock is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap03/thumbs-ed1ch17ap03-00002.png In order to waken a sleeping child, the volume on an alarm clock is tripleUnder this new scenario, how much more energy will be striking the child’s ear drums each second? (a) twice as much(b) three times as much(c) approximately 4.8 times as much(d) six times as much(e) nine times as much https://seo-videos.collegephysicsanswers.com/ch17/ap03/ed1ch17ap03.mp4 58 4 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-sends-transverse-wave-pulse-amplitude-along-rope-attached-one-enas-pulse A student sends a transverse wave pulse of amplitude A along a rope… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap09/thumbs-ed1ch17ap09-00002.png A student sends a transverse wave pulse of amplitude A along a rope attached at one enAs the pulse returns to the student, a second pulse of amplitude 3A is sent along the opposite side of the ropWhat is the resulting amplitude when the two pulses interact? (a) 4A(b) A(c) 2A, on the side of the original wave pulse(d) 2A, on the side of the second wave pulse https://seo-videos.collegephysicsanswers.com/ch17/ap09/ed1ch17ap09.mp4 84 4 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-shaking-flexible-string-attached-wooden-board-rhythmic-manner-which A student is shaking a flexible string attached to a wooden board in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/ap11/thumbs-ed1ch17ap11-00002.png A student is shaking a flexible string attached to a wooden board in a rhythmic manner. Which of the following choices will decrease the wavelength within the rope? (a) The student could shake her hand back and forth with greater frequency.(b) The student could shake her hand back in forth with a greater amplitude.(c) The student could increase the tension within the rope by stepping backwards from the board. (a) I only(b) I and II(c) I and III(d) II and III(e) I, II, and III https://seo-videos.collegephysicsanswers.com/ch17/ap11/ed1ch17ap11.mp4 54 2 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-poked-spear-operatic-soprano-lets-out-1200-hz-shriek-what-its-wavelength-if When poked by a spear, an operatic soprano lets out a 1200-Hz shriek.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe01/thumbs-ed1ch17pe01-00002.png When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is its wavelength if the speed of sound is 345 m/s? https://d1igkeoc1zsqhw.cloudfront.net/ch17/pe01/ed1ch17pe01.mp4 38 119 4 2018-09-20 no 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-speed-sound-day-when-1500-hz-frequency-has-wavelength-0221-m Calculate the speed of sound on a day when a 1500 Hz frequency has a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe03/thumbs-ed1ch17pe03-00002.png Calculate the speed of sound on a day when a 1500 Hz frequency has a wavelength of 0.221 m. https://seo-videos.collegephysicsanswers.com/ch17/pe03/ed1ch17pe03.mp4 21 66 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-speed-sound-20circtextrmc-air-343-ms-claimed-text Show that the speed of sound in 20° C air is 343 m/s, as claimed in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe05/thumbs-ed1ch17pe05-00002.png Show that the speed of sound in 20° C air is 343 m/s, as claimed in the text. https://seo-videos.collegephysicsanswers.com/ch17/pe05/ed1ch17pe05.mp4 49 84 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-submarines-sonar-can-measure-echo-times-precision-00100-s-what-smallest (a) If a submarine’s sonar can measure echo times with a precision of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe09/thumbs-ed1ch17pe09-00002.png (a) If a submarine’s sonar can measure echo times with a precision of 0.0100 s, what is the smallest difference in distances it can detect? (Assume that the submarine is in the ocean, not in fresh water.) https://seo-videos.collegephysicsanswers.com/ch17/pe09/ed1ch17pe09.mp4 217 54 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/warning-tag-lawn-mower-states-it-produces-noise-level-910-db-what-watts-meter The warning tag on a lawn mower states that it produces noise at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe13/thumbs-ed1ch17pe13-00002.png The warning tag on a lawn mower states that it produces noise at a level of 91.0 dB. What is this in watts per meter squared? https://seo-videos.collegephysicsanswers.com/ch17/pe13/ed1ch17pe13.mp4 85 231 3.7 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-intensity-10-12-wm2-same-10-16-wcm2 Show that an intensity of 10^{-12} W/m ^2 is the same as 10^{-16}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe17/thumbs-ed1ch17pe17-00002.png Show that an intensity of 10^{-12} W/m ^2 is the same as 10^{-16} W/cm ^2. https://seo-videos.collegephysicsanswers.com/ch17/pe17/ed1ch17pe17.mp4 31 33 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-bat-uses-sound-echoes-locate-its-insect-prey-300-m-away-see-figure-179 Suppose a bat uses sound echoes to locate its insect prey, 3.00 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe11/thumbs-ed1ch17pe11-00002.png Suppose a bat uses sound echoes to locate its insect prey, 3.00 m away. (See Figure 17.9.) (a) Calculate the echo times for temperatures of 5.00° C and 35.0° C . (b) What percent uncertainty does this cause for the bat in locating the insect? (c) Discuss the significance of this uncertainty and whether it could cause difficulties for the bat. (In practice, the bat continues to use sound as it closes in, eliminating most of any difficulties imposed by this and other effects, such as motion of the prey.) https://seo-videos.collegephysicsanswers.com/ch17/pe11/ed1ch17pe11.mp4 223 82 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-wind-speed-gauge-pitot-tube-shown-example-122b-what-factor-must Suppose you have a wind speed gauge like the pitot tube shown in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe18/thumbs-ed1ch12pe18-00002.png Suppose you have a wind speed gauge like the pitot tube shown in Example 12.2(b). By what factor must wind speed increase to double the value of h in the manometer? Is this independent of the moving fluid and the fluid in the manometer? https://seo-videos.collegephysicsanswers.com/ch12/pe18/ed1ch12pe18.mp4 264 137 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-maximum-height-which-water-could-be-squirted-hose-example-122-example Calculate the maximum height to which water could be squirted with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe20/thumbs-ed1ch12pe20-00002.png Calculate the maximum height to which water could be squirted with the hose in Example 12.2 example if it: (a) Emerges from the nozzle. (b) Emerges with the nozzle removed, assuming the same flow rate. https://seo-videos.collegephysicsanswers.com/ch12/pe20/ed1ch12pe20.mp4 133 254 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-approximate-force-square-meter-sail-given-horizontal-velocity-wind-600 (a) Calculate the approximate force on a square meter of sail, given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe22/thumbs-ed1ch12pe22-00002.png (a) Calculate the approximate force on a square meter of sail, given the horizontal velocity of the wind is 6.00 m/s parallel to its front surface and 3.50 m/s along its back surface. Take the density of air to be 1.29 kg/m ^3. (The calculation, based on Bernoulli’s principle, is approximate due to the effects of turbulence.) (b) Discuss whether this force is great enough to be effective for propelling a sailboat. https://seo-videos.collegephysicsanswers.com/ch12/pe22/ed1ch12pe22.mp4 229 236 5 2020-04-28 yes 2020-04-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/following-free-body-diagram-represents-toboggan-hill-what-acceleration-would-you The following free-body diagram represents a toboggan on a hill. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap20/thumbs-ed1ch04ap20-00002.png The following free-body diagram represents a toboggan on a hill. What acceleration would you expect, and why? (a) Acceleration down the hill; the force due to being pushed, together with the downhill component of gravity, overcomes the opposing force of friction.(b) Acceleration down the hill; friction is less than the opposing component of force due to gravity.(c) No movement; friction is greater than the force due to being pushed.(d) It depends on how strong the force due to friction is. https://seo-videos.collegephysicsanswers.com/ch04/ap20/ed1ch04ap20.mp4 37 8 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-intensity-sound-has-level-700-db-lower-400-times-10-9-wm2-sound-b-what (a) What is the intensity of a sound that has a level 7.00 dB lower… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe19/thumbs-ed1ch17pe19-00002.png (a) What is the intensity of a sound that has a level 7.00 dB lower than a 4.00 x 10^{-9} W/m ^2 sound? (b) What is the intensity of a sound that is 3.00 dB higher than a 4.00 x 10^{-9} W/m ^2 sound? https://seo-videos.collegephysicsanswers.com/ch17/pe19/ed1ch17pe19.mp4 221 135 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unreasonable-results-what-final-velocity-car-originally-traveling-500-kmh **Unreasonable Results** (a) What is the final velocity of a car… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe50/thumbs-ed1ch04pe50-00002.png **Unreasonable Results** (a) What is the final velocity of a car originally traveling at 50.0 km/h that decelerates at a rate of 0.400 m/s ^2 for 50.0 s? (b) What is unreasonable about the result? (c) Which premise is unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch04/pe50/ed1ch04pe50.mp4 132 34 5 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-water-skiers-masses-48-kg-and-61-kg-are-preparing-be-towed-behind-same-boat Two water-skiers, with masses of 48 kg and 61 kg, are preparing to be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap14/thumbs-ed1ch04ap14-00002.png Two water-skiers, with masses of 48 kg and 61 kg, are preparing to be towed behind the same boat. When the boat accelerates, the rope the skiers hold onto accelerates with it and exerts a net force of 290 N on the skiers. At what rate will the skiers accelerate? (a) 10.8 m/s ^2(b) 2.7 m/s ^2(c) 6.0 m/s ^2 and 4.8 m/s ^2(d) 5.3 m/s ^2 https://seo-videos.collegephysicsanswers.com/ch04/ap14/ed1ch04ap14.mp4 40 10 3 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-20-kg-suspended-ceiling-elevator-rope-what-tension-rope-when-elevator-i A mass of 2.0 kg is suspended from the ceiling of an elevator by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap24/thumbs-ed1ch04ap24-00002.png A mass of 2.0 kg is suspended from the ceiling of an elevator by a rope. What is the tension in the rope when the elevator (i) accelerates upward at 1.5 m/s ^2? (ii) accelerates downward at 1.5 m/s ^2? (a) (i) 22.6 N; (ii) 16.6 N(b) Because the mass is hanging from the elevator itself, the tension in the rope will not change in either case.(c) (i) 22.6 N; (ii) 19.6 N(d) (i) 16.6 N; (ii) 19.6 N https://seo-videos.collegephysicsanswers.com/ch04/ap24/ed1ch04ap24.mp4 80 14 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-can-smell-perfume-very-shortly-after-opening-bottle-show-it-not-reaching You can smell perfume very shortly after opening the bottle. To show… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe62/thumbs-ed1ch12pe62-00002.png You can smell perfume very shortly after opening the bottle. To show that it is not reaching your nose by diffusion, calculate the average distance a perfume molecule moves in one second in air, given its diffusion constant D to be 1.00 x 10^{-6} m ^2 /s . https://seo-videos.collegephysicsanswers.com/ch12/pe62/ed1ch12pe62.mp4 50 154 5 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ten-cars-circle-boom-box-competition-produce-120-db-sound-intensity-level-center Ten cars in a circle at a boom box competition produce a 120-dB sound… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe23/thumbs-ed1ch17pe23-00002.png Ten cars in a circle at a boom box competition produce a 120-dB sound intensity level at the center of the circle. What is the average sound intensity level produced there by each stereo, assuming interference effects can be neglected? https://seo-videos.collegephysicsanswers.com/ch17/pe23/ed1ch17pe23.mp4 210 67 4.7 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-percentage-acceleration-earths-surface-acceleration-due-gravity-position What percentage of the acceleration at Earth's surface is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe17/thumbs-ed1ch06pe17-00002.png What percentage of the acceleration at Earth's surface is the acceleration due to gravity at the position of a satellite located 300 km above Earth? https://seo-videos.collegephysicsanswers.com/ch06/pe17/ed1ch06pe17.mp4 132 269 4.5 2018-03-13 yes 2018-03-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-sound-intensity-level-0-db-1000-hz-corresponds-maximum-gauge-pressure-sound If a sound intensity level of 0 dB at 1000 Hz corresponds to a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe25/thumbs-ed1ch17pe25-00002.png If a sound intensity level of 0 dB at 1000 Hz corresponds to a maximum gauge pressure (sound amplitude) of 10^{-9} atm , what is the maximum gauge pressure in a 60-dB sound? What is the maximum gauge pressure in a 120-dB sound? https://seo-videos.collegephysicsanswers.com/ch17/pe25/ed1ch17pe25.mp4 287 37 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/oxygen-reaches-veinless-cornea-eye-diffusing-through-its-tear-layer-which-0500 Oxygen reaches the veinless cornea of the eye by diffusing through… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe64/thumbs-ed1ch12pe64-00002.png Oxygen reaches the veinless cornea of the eye by diffusing through its tear layer, which is 0.500-mm thick. How long does it take the average oxygen molecule to do this? https://seo-videos.collegephysicsanswers.com/ch12/pe64/ed1ch12pe64.mp4 73 132 3.5 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-blood-ideal-fluid-calculate-critical-flow-rate-which-turbulence Assuming that blood is an ideal fluid, calculate the critical flow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe60/thumbs-ed1ch12pe60-00002.png Assuming that blood is an ideal fluid, calculate the critical flow rate at which turbulence is a certainty in the aorta. Take the diameter of the aorta to be 2.50 cm. (Turbulence will actually occur at lower average flow rates, because blood is not an ideal fluid. Furthermore, since blood flow pulses, turbulence may occur during only the high-velocity part of each heartbeat.) https://seo-videos.collegephysicsanswers.com/ch12/pe60/ed1ch12pe60.mp4 172 24 5 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/loudspeakers-can-produce-intense-sounds-surprisingly-small-energy-input-spite Loudspeakers can produce intense sounds with surprisingly small… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe29/thumbs-ed1ch17pe29-00002.png Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low efficiencies. Calculate the power input needed to produce a 90.0-dB sound intensity level for a 12.0-cm-diameter speaker that has an efficiency of 1.00%. (This value is the sound intensity level right at the speaker.) https://seo-videos.collegephysicsanswers.com/ch17/pe29/ed1ch17pe29.mp4 200 51 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/archer-shoots-arrow-straight-force-245-n-arrow-has-mass-04-kg-what-force-gravity An archer shoots an arrow straight up with a force of 24.5 N. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap16/thumbs-ed1ch04ap16-00002.png An archer shoots an arrow straight up with a force of 24.5 N. The arrow has a mass of 0.4 kg. What is the force of gravity on the arrow? (a) 9.8 m/s ^2(b) 9.8 N (c) 61.25 N (d) 3.9 N https://seo-videos.collegephysicsanswers.com/ch04/ap16/ed1ch04ap16.mp4 47 10 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-sliding-down-hill-slope-20circ-mass-car-965-kg-when-cable-used-pull-car A car is sliding down a hill with a slope of 20°. The mass of the car… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap22/thumbs-ed1ch04ap22-00002.png A car is sliding down a hill with a slope of 20°. The mass of the car is 965 kg. When a cable is used to pull the car up the slope, a force of 4215 N is applied. What is the car’s acceleration, ignoring friction? https://seo-videos.collegephysicsanswers.com/ch04/ap22/ed1ch04ap22.mp4 99 24 5 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/flight-attendant-pushes-cart-down-aisle-plane-flight-determining-acceleration A flight attendant pushes a cart down the aisle of a plane in flight.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap12/thumbs-ed1ch04ap12-00002.png A flight attendant pushes a cart down the aisle of a plane in flight. In determining the acceleration of the cart relative to the plane, which factor do you not need to consider? (a) The friction of the cart’s wheels.(b) The force with which the flight attendant’s feet push on the floor.(c) The velocity of the plane.(d) The mass of the items in the cart. https://seo-videos.collegephysicsanswers.com/ch04/ap12/ed1ch04ap12.mp4 57 8 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/force-applied-accelerate-object-smooth-icy-surface-when-force-stops-which A force is applied to accelerate an object on a smooth icy surface.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap10/thumbs-ed1ch04ap10-00002.png A force is applied to accelerate an object on a smooth icy surface. When the force stops, which of the following will be true? (Assume zero friction.) (a) The object’s acceleration becomes zero.(b) The object’s speed becomes zero.(c) The object’s acceleration continues to increase at a constant rate.(d) The object accelerates, but in the opposite direction. https://seo-videos.collegephysicsanswers.com/ch04/ap10/ed1ch04ap10.mp4 77 6 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-mass-025-kg-hits-gym-ceiling-force-780-n-what-happens-next-ball-accelerates A ball with a mass of 0.25 kg hits a gym ceiling with a force of 78.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap06/ed1ch04ap06b-thumbnail.jpg A ball with a mass of 0.25 kg hits a gym ceiling with a force of 78.0 N. What happens next? (a) The ball accelerates downward with a force of 80.5 N.(b) The ball accelerates downward with a force of 78.0 N.(c) The ball accelerates downward with a force of 2.45 N.(d) It depends on the height of the ceiling. https://seo-videos.collegephysicsanswers.com/ch04/ap06/ed1ch04ap06b.mp4 137 20 2023-11-22 yes 2023-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-causes-force-moves-boat-forward-when-someone-rows-it-force-caused-rowers What causes the force that moves a boat forward when someone rows it?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap04/thumbs-ed1ch04ap04-00002.png What causes the force that moves a boat forward when someone rows it? (a) The force is caused by the rower’s arms.(b) The force is caused by an interaction between the oarsand gravity.(c) The force is caused by an interaction between the oars and the water the boat is traveling in.(d) The force is caused by friction. https://seo-videos.collegephysicsanswers.com/ch04/ap04/ed1ch04ap04.mp4 71 6 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-pulls-wagon-along-grassy-field-define-system-pairs-forces-work-and-results A child pulls a wagon along a grassy field. Define the system, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap18/thumbs-ed1ch04ap18-00002.png A child pulls a wagon along a grassy field. Define the system, the pairs of forces at work, and the results. https://seo-videos.collegephysicsanswers.com/ch04/ap18/ed1ch04ap18.mp4 177 7 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/stationary-skater-pushes-stationary-skater-b-who-then-2-accelerates-50textrm-ms2 Stationary skater A pushes stationary skater B, who then 2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap08/thumbs-ed1ch04ap08-00002.png Stationary skater A pushes stationary skater B, who then 2 accelerates at 5.0 m/s ^2 . Skater A does not move. Since forces act in action-reaction pairs, explain why Skater A did not move? https://seo-videos.collegephysicsanswers.com/ch04/ap08/ed1ch04ap08.mp4 100 12 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-example-body-exerting-force-itself-person-standing-seated Which of the following is an example of a body exerting a force on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap02/thumbs-ed1ch04ap02-00002.png Which of the following is an example of a body exerting a force on itself? (a) a person standing up from a seated position(b) a car accelerating while driving(c) both of the above(d) none of the above https://seo-videos.collegephysicsanswers.com/ch04/ap02/ed1ch04ap02.mp4 96 12 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/can-you-perceive-shift-frequency-produced-when-you-pull-tuning-fork-toward-you Can you perceive the shift in frequency produced when you pull a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe35/thumbs-ed1ch17pe35-00002.png Can you perceive the shift in frequency produced when you pull a tuning fork toward you at 10.0 m/s on a day when the speed of sound is 344 m/s? To answer this question, calculate the factor by which the frequency shifts and see if it is greater than 0.300%. https://seo-videos.collegephysicsanswers.com/ch17/pe35/ed1ch17pe35.mp4 124 54 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-speed-which-source-must-travel-toward-you-you-be-able-hear-its What is the minimum speed at which a source must travel toward you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe37/thumbs-ed1ch17pe37-00002.png What is the minimum speed at which a source must travel toward you for you to be able to hear that its frequency is Doppler shifted? That is, what speed produces a shift of 0.300% on a day when the speed of sound is 331 m/s? https://seo-videos.collegephysicsanswers.com/ch17/pe37/ed1ch17pe37.mp4 172 73 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-250-kg-fireworks-shell-fired-mortar-angle-100circ-vertical **Integrated Concepts** A 2.50-kg fireworks shell is fired by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe48/thumbs-ed1ch04pe48-00002.png **Integrated Concepts** A 2.50-kg fireworks shell is fired by a mortar at an angle 10.0° from the vertical and reaches a height of 110 m. (a) Neglecting air resistance (a poor assumption, but we will make it for this example), calculate the shell’s velocity when it leaves the mortar. (b) The mortar itself is a tube 0.450 m long. Calculate the average acceleration of the shell in the tube as it goes from zero to the velocity found in (a). (c) What is the average force on the shell in the mortar? Express your answer in newtons and as a ratio to the weight of the shell. https://seo-videos.collegephysicsanswers.com/ch04/pe48/ed1ch04pe48.mp4 342 94 3 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-beat-frequencies-will-be-present-if-musical-notes-and-c-are-played-together What beat frequencies will be present: (a) If the musical notes A and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe39/thumbs-ed1ch17pe39-00002.png What beat frequencies will be present: (a) If the musical notes A and C are played together (frequencies of 220 and 264 Hz)? (b) If D and F are played together (frequencies of 297 and 352 Hz)? (c) If all four are played together? https://seo-videos.collegephysicsanswers.com/ch17/pe39/ed1ch17pe39.mp4 97 106 3 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/take-home-experiment-inhalation-we-measured-average-flow-rate-q-air-traveling In Take-Home Experiment: Inhalation, we measured the average flow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe58/thumbs-ed1ch12pe58-00002.png In Take-Home Experiment: Inhalation, we measured the average flow rate Q of air traveling through the trachea during each inhalation. Now calculate the average air speed in meters per second through your trachea during each inhalation. The radius of the trachea in adult humans is approximately 10^{-2} m . From the data above, calculate the Reynolds number for the air flow in the trachea during inhalation. Do you expect the air flow to be laminar or turbulent? https://seo-videos.collegephysicsanswers.com/ch12/pe58/ed1ch12pe58.mp4 213 14 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/piano-tuner-hears-beat-every-200-s-when-listening-2640-hz-tuning-fork-and-single A piano tuner hears a beat every 2.00 s when listening to a 264.0-Hz… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe41/thumbs-ed1ch17pe41-00002.png A piano tuner hears a beat every 2.00 s when listening to a 264.0-Hz tuning fork and a single piano string. What are the two possible frequencies of the string? https://seo-videos.collegephysicsanswers.com/ch17/pe41/ed1ch17pe41.mp4 115 119 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-wind-instrument-such-tuba-has-fundamental-frequency-320-hz-what-are-its-first If a wind instrument, such as a tuba, has a fundamental frequency of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe43/thumbs-ed1ch17pe43-00002.png If a wind instrument, such as a tuba, has a fundamental frequency of 32.0 Hz, what are its first three overtones? It is closed at one end. (The overtones of a real tuba are more complex than this example, because it is a tapered tube.) https://seo-videos.collegephysicsanswers.com/ch17/pe43/ed1ch17pe43.mp4 172 137 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-physicians-diagnose-arterial-blockages-they-quote-reduction-flow-rate-if When physicians diagnose arterial blockages, they quote the reduction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe44/thumbs-ed1ch12pe44-00002.png When physicians diagnose arterial blockages, they quote the reduction in flow rate. If the flow rate in an artery has been reduced to 10.0% of its normal value by a blood clot and the average pressure difference has increased by 20.0%, by what factor has the clot reduced the radius of the artery? https://seo-videos.collegephysicsanswers.com/ch12/pe44/ed1ch12pe44.mp4 199 36 3.3 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-must-flute-be-order-have-fundamental-frequency-262-hz-frequency How long must a flute be in order to have a fundamental frequency of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe45/thumbs-ed1ch17pe45-00002.png How long must a flute be in order to have a fundamental frequency of 262 Hz (this frequency corresponds to middle C on the evenly tempered chromatic scale) on a day when air temperature is 20.0° C ? It is open at both ends. https://seo-videos.collegephysicsanswers.com/ch17/pe45/ed1ch17pe45.mp4 98 115 3.3 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-length-tube-has-fundamental-frequency-176-hz-and-first-overtone-352-hz-if What is the length of a tube that has a fundamental frequency of 176… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe47/thumbs-ed1ch17pe47-00002.png What is the length of a tube that has a fundamental frequency of 176 Hz and a first overtone of 352 Hz if the speed of sound is 343 m/s? https://seo-videos.collegephysicsanswers.com/ch17/pe47/ed1ch17pe47.mp4 83 111 3.5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fraction-will-frequencies-produced-wind-instrument-change-when-air By what fraction will the frequencies produced by a wind instrument… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe49/thumbs-ed1ch17pe49-00002.png By what fraction will the frequencies produced by a wind instrument change when air temperature goes from 10.0° C to 30.0° C ? That is, find the ratio of the frequencies at those temperatures. https://seo-videos.collegephysicsanswers.com/ch17/pe49/ed1ch17pe49.mp4 187 28 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-first-overtone-ear-canal-which-resonates-240-cm-long-tube-closed-one Calculate the first overtone in an ear canal, which resonates like a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe51/thumbs-ed1ch17pe51-00002.png Calculate the first overtone in an ear canal, which resonates like a 2.40-cm-long tube closed at one end, by taking air temperature to be 37.0° C . Is the ear particularly sensitive to such a frequency? (The resonances of the ear canal are complicated by its nonuniform shape, which we shall ignore.) https://seo-videos.collegephysicsanswers.com/ch17/pe51/ed1ch17pe51.mp4 218 55 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-supplied-house-water-main-has-pressure-300times-105textrm-nm2-early-summer Water supplied to a house by a water main has a pressure of 3.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe46/thumbs-ed1ch12pe46-00002.png Water supplied to a house by a water main has a pressure of 3.00 x 10^{5} N/m ^2 early on a summer day when neighborhood use is low. This pressure produces a flow of 20.0 L/min through a garden hose. Later in the day, pressure at the exit of the water main and entrance to the house drops, and a flow of only 8.00 L/min is obtained through the same hose. (a) What pressure is now being supplied to the house, assuming resistance is constant? (b) By what factor did the flow rate in the water main increase in order to cause this decrease in delivered pressure? The pressure at the entrance of the water main is 5.00 x 10^{5} N/m ^2 , and the original flow rate was 200 L/min. (c) How many more users are there, assuming each would consume 20.0 L/min in the morning? https://seo-videos.collegephysicsanswers.com/ch12/pe46/ed1ch12pe46.mp4 524 27 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fluid-originally-flows-through-tube-rate-100-cm2textrms-illustrate-sensitivity Fluid originally flows through a tube at a rate of 100 cm ^2 /s . To… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe34/thumbs-ed1ch12pe34-00002.png Fluid originally flows through a tube at a rate of 100 cm ^2 /s . To illustrate the sensitivity of flow rate to various factors, calculate the new flow rate for the following changes with all other factors remaining the same as in the original conditions. (a) Pressure difference increases by a factor of 1.50. (b) A new fluid with 3.00 times greater viscosity is substituted. (c) The tube is replaced by one having 4.00 times the length. (d) Another tube is used with a radius 0.100 times the original. (e) Yet another tube is substituted with a radius 0.100 times the original and half the length, and the pressure difference is increased by a factor of 1.50. https://seo-videos.collegephysicsanswers.com/ch12/pe34/ed1ch12pe34.mp4 274 146 5 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/angioplasty-technique-which-arteries-partially-blocked-plaque-are-dilated Angioplasty is a technique in which arteries partially blocked with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe36/thumbs-ed1ch12pe36-00002.png Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor must the radius of an artery be increased in order to increase blood flow by a factor of 10? https://seo-videos.collegephysicsanswers.com/ch12/pe36/ed1ch12pe36.mp4 84 123 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/skydiver-will-reach-terminal-velocity-when-air-drag-equals-their-weight-skydiver A skydiver will reach a terminal velocity when the air drag equals… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe40/thumbs-ed1ch12pe40-00002.png A skydiver will reach a terminal velocity when the air drag equals their weight. For a skydiver with high speed and a large body, turbulence is a factor. The drag force then is approximately proportional to the square of the velocity. Taking the drag force to be F_D = \dfrac{1}{2}\rho A v^2 and setting this equal to the person’s weight, find the terminal speed for a person falling “spread eagle.” Find both a formula and a number for v_T , with assumptions as to size. https://seo-videos.collegephysicsanswers.com/ch12/pe40/ed1ch12pe40.mp4 117 42 3 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-190-decrease-laminar-flow-through-tube-caused-500-decrease-radius (a) Verify that a 19.0% decrease in laminar flow through a tube is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe42/thumbs-ed1ch12pe42-00002.png (a) Verify that a 19.0% decrease in laminar flow through a tube is caused by a 5.00% decrease in radius, assuming that all other factors remain constant, as stated in the text. (b) What increase in flow is obtained from a 5.00% increase in radius, again assuming all other factors remain constant? https://seo-videos.collegephysicsanswers.com/ch12/pe42/ed1ch12pe42.mp4 154 20 2 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/concrete-pumped-cement-mixer-place-it-being-laid-instead-being-carried-1 Concrete is pumped from a cement mixer to the place it is being laid,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe48/thumbs-ed1ch12pe48-00002.png Concrete is pumped from a cement mixer to the place it is being laid, instead of being carried in wheelbarrows. The flow rate is 200.0 L/min through a 50.0-m-long, 8.00-cm-diameter hose, and the pressure at the pump is 8.00 x 10^{6} N/m ^2. (a) Calculate the resistance of the hose. (b) What is the viscosity of the concrete, assuming the flow is laminar? (c) How much power is being supplied, assuming the point of use is at the same level as the pump? You may neglect the power supplied to increase the concrete’s velocity. https://seo-videos.collegephysicsanswers.com/ch12/pe48/ed1ch12pe48.mp4 259 52 5 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-reynolds-number-nr-unitless-substituting-units-all-quantities-its Show that the Reynolds number N_R is unitless by substituting units… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe52/thumbs-ed1ch12pe52-00002.png Show that the Reynolds number N_R is unitless by substituting units for all the quantities in its definition and cancelling. https://seo-videos.collegephysicsanswers.com/ch12/pe52/ed1ch12pe52.mp4 144 15 2020-05-04 yes 2020-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/factor-10-12-range-intensities-which-ear-can-respond-threshold-causing-damage The factor of 10^{-12} in the range of intensities to which the ear… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe55/thumbs-ed1ch17pe55-00002.png The factor of 10^{-12} in the range of intensities to which the ear can respond, from threshold to that causing damage after brief exposure, is truly remarkable. If you could measure distances over the same range with a single instrument and the smallest distance you could measure was 1 mm, what would the largest be? https://seo-videos.collegephysicsanswers.com/ch17/pe55/ed1ch17pe55.mp4 45 152 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-closest-frequencies-500-hz-average-person-can-clearly-distinguish-being What are the closest frequencies to 500 Hz that an average person can… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe57/thumbs-ed1ch17pe57-00002.png What are the closest frequencies to 500 Hz that an average person can clearly distinguish as being different in frequency from 500 Hz? The sounds are not present simultaneously. https://seo-videos.collegephysicsanswers.com/ch17/pe57/ed1ch17pe57.mp4 56 112 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-your-radio-producing-average-sound-intensity-level-85-db-what-next-lowest If your radio is producing an average sound intensity level of 85 dB,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe59/thumbs-ed1ch17pe59-00002.png If your radio is producing an average sound intensity level of 85 dB, what is the next lowest sound intensity level that is clearly less intense? https://seo-videos.collegephysicsanswers.com/ch17/pe59/ed1ch17pe59.mp4 28 17 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/students-physics-lab-are-asked-find-length-air-column-tube-closed-one-end-has (a) Students in a physics lab are asked to find the length of an air… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe53/thumbs-ed1ch17pe53-00002.png (a) Students in a physics lab are asked to find the length of an air column in a tube closed at one end that has a fundamental frequency of 256 Hz. They hold the tube vertically and fill it with water to the top, then lower the water while a 256-Hz tuning fork is rung and listen for the first resonance. What is the air temperature if the resonance occurs for a length of 0.336 m? (b) At what length will they observe the second resonance (first overtone)? https://seo-videos.collegephysicsanswers.com/ch17/pe53/ed1ch17pe53.mp4 218 91 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/based-graph-figure-1735-what-threshold-hearing-decibels-frequencies-60-400-1000 Based on the graph in Figure 17.35, what is the threshold of hearing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe61/thumbs-ed1ch17pe61-00002.png Based on the graph in Figure 17.35, what is the threshold of hearing in decibels for frequencies of 60, 400, 1000, 4000, and 15,000 Hz? Note that many AC electrical appliances produce 60 Hz, music is commonly 400 Hz, a reference frequency is 1000 Hz, your maximum sensitivity is near 4000 Hz, and many older TVs produce a 15,750 Hz whine. https://seo-videos.collegephysicsanswers.com/ch17/pe61/ed1ch17pe61.mp4 133 10 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-approximate-sound-intensity-level-decibels-600-hz-tone-if-it-has-loudness What is the approximate sound intensity level in decibels of a 600-Hz… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe63/thumbs-ed1ch17pe63-00002.png What is the approximate sound intensity level in decibels of a 600-Hz tone if it has a loudness of 20 phons? If it has a loudness of 70 phons? https://seo-videos.collegephysicsanswers.com/ch17/pe63/ed1ch17pe63.mp4 79 6 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-person-has-50-db-hearing-loss-all-frequencies-how-many-factors-10-will Suppose a person has a 50-dB hearing loss at all frequencies. By how… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe65/thumbs-ed1ch17pe65-00002.png Suppose a person has a 50-dB hearing loss at all frequencies. By how many factors of 10 will low-intensity sounds need to be amplified to seem normal to this person? Note that smaller amplification is appropriate for more intense sounds to avoid further hearing damage. https://seo-videos.collegephysicsanswers.com/ch17/pe65/ed1ch17pe65.mp4 277 32 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-has-hearing-threshold-10-db-above-normal-100-hz-and-50-db-above-normal A person has a hearing threshold 10 dB above normal at 100 Hz and 50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe69/thumbs-ed1ch17pe69-00002.png A person has a hearing threshold 10 dB above normal at 100 Hz and 50 dB above normal at 4000 Hz. How much more intense must a 100-Hz tone be than a 4000-Hz tone if they are both barely audible to this person? https://seo-videos.collegephysicsanswers.com/ch17/pe69/ed1ch17pe69.mp4 251 20 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-intensities-two-sounds-identical-frequency-if-first-just-barely What is the ratio of intensities of two sounds of identical frequency… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe71/thumbs-ed1ch17pe71-00002.png What is the ratio of intensities of two sounds of identical frequency if the first is just barely discernible as louder to a person than the second? https://seo-videos.collegephysicsanswers.com/ch17/pe71/ed1ch17pe71.mp4 146 26 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/time-delay-between-transmission-and-arrival-reflected-wave-signal-using The time delay between transmission and the arrival of the reflected… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe75/ed1ch17pe75b-thumbnail.jpg The time delay between transmission and the arrival of the reflected wave of a signal using ultrasound traveling through a piece of fat tissue was 0.13 ms. At what depth did this reflection occur? https://seo-videos.collegephysicsanswers.com/ch17/pe75/ed1ch17pe75b.mp4 126 45 3 2024-01-11 yes 2024-01-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-minimum-frequency-ultrasound-will-allow-you-see-details-small-0250-mm (a) Calculate the minimum frequency of ultrasound that will allow you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe77/thumbs-ed1ch17pe77-00002.png (a) Calculate the minimum frequency of ultrasound that will allow you to see details as small as 0.250 mm in human tissue. (b) What is the effective depth to which this sound is effective as a diagnostic probe? https://seo-videos.collegephysicsanswers.com/ch17/pe77/ed1ch17pe77.mp4 71 32 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/echo-times-are-measured-diagnostic-ultrasound-scanners-determine-distances (a) Echo times are measured by diagnostic ultrasound scanners to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe79/thumbs-ed1ch17pe79-00002.png (a) Echo times are measured by diagnostic ultrasound scanners to determine distances to reflecting surfaces in a patient. What is the difference in echo times for tissues that are 3.50 and 3.60 cm beneath the surface? (This difference is the minimum resolving time for the scanner to see details as small as 0.100 cm, or 1.00 mm. Discrimination of smaller time differences is needed to see smaller details.) (b) Discuss whether the period T of this ultrasound must be smaller than the minimum time resolution. If so, what is the minimum frequency of the ultrasound and is that out of the normal range for diagnostic ultrasound? https://seo-videos.collegephysicsanswers.com/ch17/pe79/ed1ch17pe79.mp4 200 26 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bat-uses-ultrasound-find-its-way-among-trees-if-bat-can-detect-echoes-100-ms (a) A bat uses ultrasound to find its way among trees. If this bat… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe81/thumbs-ed1ch17pe81-00002.png (a) A bat uses ultrasound to find its way among trees. If this bat can detect echoes 1.00 ms apart, what minimum distance between objects can it detect? (b) Could this distance explain the difficulty that bats have finding an open door when they accidentally get into a house? https://seo-videos.collegephysicsanswers.com/ch17/pe81/ed1ch17pe81.mp4 97 18 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diagnostic-ultrasound-echo-reflected-moving-blood-and-returns-frequency-500-hz A diagnostic ultrasound echo is reflected from moving blood and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe83/thumbs-ed1ch17pe83-00002.png A diagnostic ultrasound echo is reflected from moving blood and returns with a frequency 500 Hz higher than its original 2.00 MHz. What is the velocity of the blood? (Assume that the frequency of 2.00 MHz is accurate to seven significant figures and 500 Hz is accurate to three significant figures.) https://seo-videos.collegephysicsanswers.com/ch17/pe83/ed1ch17pe83.mp4 436 42 5 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-large-expansion-gap-should-be-left-between-steel-railroad-rails-if-they-may How large an expansion gap should be left between steel railroad… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe12/thumbs-ed1ch13pe12-00002.png How large an expansion gap should be left between steel railroad rails if they may reach a maximum temperature 35.0 C ° greater than when they were laid? Their original length is 10.0 m. https://seo-videos.collegephysicsanswers.com/ch13/pe12/ed1ch13pe12.mp4 68 126 5 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-hottest-temperatures-ever-recorded-surface-earth-was-134circtextrmf-death One of the hottest temperatures ever recorded on the surface of Earth… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe06/thumbs-ed1ch13pe06-00002.png One of the hottest temperatures ever recorded on the surface of Earth was 134° F in Death Valley, CA. What is this temperature in Celsius degrees? What is this temperature in Kelvin? https://seo-videos.collegephysicsanswers.com/ch13/pe06/ed1ch13pe06.mp4 43 62 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-do-fahrenheit-and-celsius-scales-have-same-numerical-value-b (a) At what temperature do the Fahrenheit and Celsius scales have the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe08/thumbs-ed1ch13pe08-00002.png (a) At what temperature do the Fahrenheit and Celsius scales have the same numerical value? (b) At what temperature do the Fahrenheit and Kelvin scales have the same numerical value? https://seo-videos.collegephysicsanswers.com/ch13/pe08/ed1ch13pe08.mp4 191 177 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/global-warming-will-produce-rising-sea-levels-partly-due-melting-ice-caps-also Global warming will produce rising sea levels partly due to melting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe14/thumbs-ed1ch13pe14-00002.png Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. To get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00 C °. Note that this calculation is only approximate because ocean warming is not uniform with depth. https://seo-videos.collegephysicsanswers.com/ch13/pe14/ed1ch13pe14.mp4 98 179 2020-05-05 yes 2020-05-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/most-automobiles-have-coolant-reservoir-catch-radiator-fluid-may-overflow-when Most automobiles have a coolant reservoir to catch radiator fluid… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe18/thumbs-ed1ch13pe18-00002.png Most automobiles have a coolant reservoir to catch radiator fluid that may overflow when the engine is hot. A radiator is made of copper and is filled to its 16.0-L capacity when at 10.0° C . What volume of radiator fluid will overflow when the radiator and fluid reach their 95.0° C operating temperature, given that the fluid’s volume coefficient of expansion is 400 x 10^{-6} / C °? Note that this coefficient is approximate, because most car radiators have operating temperatures of greater than 95.0° C . https://seo-videos.collegephysicsanswers.com/ch13/pe18/ed1ch13pe18.mp4 135 210 4 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1100-kg-car-pulls-boat-trailer-what-total-force-resists-motion-car-boat-and-0 A 1100-kg car pulls a boat on a trailer. (a) What total force resists… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe38/thumbs-ed1ch04pe38-00002.png A 1100-kg car pulls a boat on a trailer. (a) What total force resists the motion of the car, boat, and trailer, if the car exerts a 1900-N force on the road and produces an acceleration of 1.20 m/s ^2? The mass of the boat plus trailer is 700 kg. (b) What is unreasonable about the result? (c) Which premise is unreasonable, and why is it unreasonable? https://seo-videos.collegephysicsanswers.com/ch04/pe38/ed1ch04pe38.mp4 142 52 2019-11-13 yes 2019-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-heat-transfer-kilocalories-required-thaw-0450-kg-package-frozen How much heat transfer (in kilocalories) is required to thaw a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe11/thumbs-ed1ch14pe11-00002.png How much heat transfer (in kilocalories) is required to thaw a 0.450-kg package of frozen vegetables originally at 0° C if their heat of fusion is the same as that of water? https://seo-videos.collegephysicsanswers.com/ch14/pe11/ed1ch14pe11.mp4 45 274 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/density-water-0circtextrmc-very-nearly-1000-kgm3-it-actually-99984textrm-kgm3 (a) The density of water at 0° C is very nearly 1000 kg/m ^3 (it is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe20/thumbs-ed1ch13pe20-00002.png (a) The density of water at 0° C is very nearly 1000 kg/m ^3 (it is actually 999.84 kg/m ^3), whereas the density of ice at 0° C is 917 kg/m ^3. Calculate the pressure necessary to keep ice from expanding when it freezes, neglecting the effect such a large pressure would have on the freezing temperature. (This problem gives you only an indication of how large the forces associated with freezing water might be.) (b) What are the implications of this result for biological cells that are frozen? https://seo-videos.collegephysicsanswers.com/ch13/pe20/ed1ch13pe20.mp4 253 144 2.3 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-units-nrt-are-those-energy-each-value-r-831-jmolcdottextrmk-b-199 Confirm that the units of nRT are those of energy for each value of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe26/thumbs-ed1ch13pe26-00002.png Confirm that the units of nRT are those of energy for each value of R: (a) 8.31 J/mol \cdot K , (b) 1.99 cal/mol \cdot K , and (c) 0.0821 L \cdot atm/mol \cdot K . https://seo-videos.collegephysicsanswers.com/ch13/pe26/ed1ch13pe26.mp4 96 50 2020-05-07 yes 2020-05-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-marathon-race-runners-blood-flow-increases-100-times-her-resting-rate-her During a marathon race, a runner's blood flow increases to 10.0 times… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe45/thumbs-ed1ch12pe45-00002.png During a marathon race, a runner's blood flow increases to 10.0 times her resting rate. Her blood's viscosity has dropped to 95.0% of its normal value, and the blood pressure difference across the circulatory system has increased by 50.0%. By what factor has the average radii of her blood vessels increased? https://seo-videos.collegephysicsanswers.com/ch12/pe45/ed1ch12pe45.mp4 195 78 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/average-atomic-and-molecular-speeds-vtextrmrms-are-large-even-low-temperatures Average atomic and molecular speeds (v_{ rms }) are large, even at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe40/thumbs-ed1ch13pe40-00002.png Average atomic and molecular speeds (v_{ rms }) are large, even at low temperatures. What is v_{ rms } for helium atoms at 5.00 K, just one degree above helium’s liquefaction temperature? https://seo-videos.collegephysicsanswers.com/ch13/pe40/ed1ch13pe40.mp4 55 112 5 2020-05-08 yes 2020-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/trip-you-notice-350-kg-bag-ice-lasts-average-one-day-your-cooler-what-average On a trip, you notice that a 3.50-kg bag of ice lasts an average of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe15/thumbs-ed1ch14pe15-00002.png On a trip, you notice that a 3.50-kg bag of ice lasts an average of one day in your cooler. What is the average power in watts entering the ice if it starts at 0° C and completely melts to 0° C water in exactly one day? 1 watt = 1 joule / second (1W = 1 J/s). https://seo-videos.collegephysicsanswers.com/ch14/pe15/ed1ch14pe15.mp4 55 126 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/escape-velocity-any-object-earth-112-kms-express-speed-ms-and-kmh-b-what The escape velocity of any object from Earth is 11.2 km/s. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe42/thumbs-ed1ch13pe42-00002.png The escape velocity of any object from Earth is 11.2 km/s. (a) Express this speed in m/s and km/h. (b) At what temperature would oxygen molecules (molecular mass is equal to 32.0 g/mol) have an average velocity v_{ rms } equal to Earth’s escape velocity of 11.1 km/s? https://seo-videos.collegephysicsanswers.com/ch13/pe42/ed1ch13pe42.mp4 130 254 3.7 2020-05-08 yes 2020-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-depth-which-avogadros-number-table-tennis-balls-would-cover-earth-each Calculate the depth to which Avogadro’s number of table tennis balls… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe36/thumbs-ed1ch13pe36-00002.png Calculate the depth to which Avogadro’s number of table tennis balls would cover Earth. Each ball has a diameter of 3.75 cm. Assume the space between balls adds an extra 25.0% to their volume and assume they are not crushed by their own weight. https://seo-videos.collegephysicsanswers.com/ch13/pe36/ed1ch13pe36.mp4 241 46 1 2020-05-08 yes 2020-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/high-pressure-gas-cylinder-contains-500-l-toxic-gas-pressure-140times-107textrm A high-pressure gas cylinder contains 50.0 L of toxic gas at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe34/thumbs-ed1ch13pe34-00002.png A high-pressure gas cylinder contains 50.0 L of toxic gas at a pressure of 1.40 x 10^{7} N/m ^2 and a temperature of 25.0° C . Its valve leaks after the cylinder is dropped. The cylinder is cooled to dry ice temperature (-78.5° C ) to reduce the leak rate and pressure so that it can be safely repaired. (a) What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled and that there is no phase change? (b) What is the final pressure if one-tenth of the gas escapes? (c) To what temperature must the tank be cooled to reduce the pressure to 1.00 atm (assuming the gas does not change phase and that there is no leakage during cooling)? (d) Does cooling the tank appear to be a practical solution? https://seo-videos.collegephysicsanswers.com/ch13/pe34/ed1ch13pe34.mp4 335 127 4 2020-05-08 yes 2020-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-grams-coffee-must-evaporate-350-g-coffee-100-g-glass-cup-cool-coffee How many grams of coffee must evaporate from 350 g of coffee in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe19/thumbs-ed1ch14pe19-00002.png How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee from 95.0° C to 45.0° C ? You may assume the coffee has the same thermal properties as water and that the average heat of vaporization is 2340 kJ/kg (560 cal/g). (You may neglect the change in mass of the coffee as it cools, which will give you an answer that is slightly larger than correct.) https://seo-videos.collegephysicsanswers.com/ch14/pe19/ed1ch14pe19.mp4 184 157 3.7 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-situation-which-gravitational-force-dominant-force-why-can-other-three Describe a situation in which gravitational force is the dominant… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap34/thumbs-ed1ch04ap34-00002.png Describe a situation in which gravitational force is the dominant force. Why can the other three basic forces be ignored in the situation you described? https://seo-videos.collegephysicsanswers.com/ch04/ap34/ed1ch04ap34.mp4 73 6 2019-11-14 yes 2019-11-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/explain-how-interatomic-electric-forces-produce-normal-force-and-why-it-has Explain how interatomic electric forces produce the normal force, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap32/thumbs-ed1ch04ap32-00002.png Explain how interatomic electric forces produce the normal force, and why it has the direction it does. https://seo-videos.collegephysicsanswers.com/ch04/ap32/ed1ch04ap32.mp4 84 8 5 2019-11-14 yes 2019-11-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-shows-forces-exerted-block-sliding-horizontal-surface-gravitational-force The figure shows the forces exerted on a block that is sliding on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/ap28/thumbs-ed1ch04ap28-00002.png The figure shows the forces exerted on a block that is sliding on a horizontal surface: the gravitational force of 40 N, the 40 N normal force exerted by the surface, and a frictional force exerted to the left. The coefficient of friction between the block and the surface is 0.20. The acceleration of the block is most nearly (a) 1.0 m/s ^2 to the right(b) 1.0 m/s ^2 to the left(c) 2.0 m/s ^2 to the right(d) 2.0 m/s ^2 to the left https://seo-videos.collegephysicsanswers.com/ch04/ap28/ed1ch04ap28.mp4 161 26 4.5 2019-11-14 yes 2019-11-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hydrogen-molecules-molecular-mass-equal-2016-g-mol-have-average-velocity Hydrogen molecules (molecular mass is equal to 2.016 g/ mol) have an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe46/thumbs-ed1ch13pe46-00002.png Hydrogen molecules (molecular mass is equal to 2.016 g/ mol) have an average velocity v_{ rms } equal to 193 m/s. What is the temperature? https://seo-videos.collegephysicsanswers.com/ch13/pe46/ed1ch13pe46.mp4 107 80 2020-05-11 yes 2020-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nuclear-fusion-energy-source-sun-hydrogen-bombs-and-fusion-reactors-occurs-much Nuclear fusion, the energy source of the Sun, hydrogen bombs, and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe44/thumbs-ed1ch13pe44-00002.png Nuclear fusion, the energy source of the Sun, hydrogen bombs, and fusion reactors, occurs much more readily when the average kinetic energy of the atoms is high—that is, at high temperatures. Suppose you want the atoms in your fusion experiment to have average kinetic energies of 6.40 x 10^{-14} J . What temperature is needed? https://seo-videos.collegephysicsanswers.com/ch13/pe44/ed1ch13pe44.mp4 55 108 2020-05-11 yes 2020-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-are-two-important-isotopes-uranium-235u-and-238u-have-different-atomic There are two important isotopes of uranium— ^{235}U and ^{238}U have… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe48/thumbs-ed1ch13pe48-00002.png There are two important isotopes of uranium— ^{235}U and ^{238}U have different atomic masses. Only ^{235}U is very useful in nuclear reactors. One of the techniques for separating them (gas diffusion) is based on the different average velocities v_{ rms } of uranium hexafluoride gas, UF_6 . (a) The molecular masses for ^{235}U UF_6 and ^{238}U UF_6 are 349.0 g/mol and 352.0 g/mol, respectively. What is the ratio of their average velocities? (b) At what temperature would their average velocities differ by 1.00 m/s? (c) Do your answers in this problem imply that this technique may be difficult? https://seo-videos.collegephysicsanswers.com/ch13/pe48/ed1ch13pe48.mp4 348 109 2020-05-11 yes 2020-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-vapor-pressure-water-200circtextrmc-b-what-percentage-atmospheric-pressure (a) What is the vapor pressure of water at 20.0° C ? (b) What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe50/thumbs-ed1ch13pe50-00002.png (a) What is the vapor pressure of water at 20.0° C ? (b) What percentage of atmospheric pressure does this correspond to? (c) What percent of 20.0° C air is water vapor if it has 100% relative humidity? (The density of dry air at 20.0° C is 1.20 kg/m ^3.) https://seo-videos.collegephysicsanswers.com/ch13/pe50/ed1ch13pe50.mp4 124 70 2020-05-11 yes 2020-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-relative-humidity-900-muggy-summer-morning-when-temperature-200circtextrmc If the relative humidity is 90.0% on a muggy summer morning when the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe60/thumbs-ed1ch13pe60-00002.png If the relative humidity is 90.0% on a muggy summer morning when the temperature is 20.0° C , what will it be later in the day when the temperature is 30.0° C , assuming the water vapor density remains constant? https://seo-videos.collegephysicsanswers.com/ch13/pe60/ed1ch13pe60.mp4 125 53 5 2020-05-12 yes 2020-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/energy-released-condensation-thunderstorms-can-be-very-large-calculate-energy The energy released from condensation in thunderstorms can be very… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe21/thumbs-ed1ch14pe21-00002.png The energy released from condensation in thunderstorms can be very large. Calculate the energy released into the atmosphere for a small storm of radius 1 km, assuming that 1.0 cm of rain is precipitated uniformly over this area. https://seo-videos.collegephysicsanswers.com/ch14/pe21/ed1ch14pe21.mp4 158 78 1 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/atmospheric-pressure-atop-mt-everest-330times-104textrm-nm2-what-partial Atmospheric pressure atop Mt. Everest is 3.30 x 10^{4} N/m ^2. (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe62/thumbs-ed1ch13pe62-00002.png Atmospheric pressure atop Mt. Everest is 3.30 x 10^{4} N/m ^2. (a) What is the partial pressure of oxygen there if it is 20.9% of the air? (b) What percent oxygen should a mountain climber breathe so that its partial pressure is the same as at sea level, where atmospheric pressure is 1.01 x 10^{5} N/m ^2? (c) One of the most severe problems for those climbing very high mountains is the extreme drying of breathing passages. Why does this drying occur? https://seo-videos.collegephysicsanswers.com/ch13/pe62/ed1ch13pe62.mp4 204 40 2 2020-05-12 yes 2020-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spot-high-andes-water-boils-800circ-greatly-reducing-cooking-speed-potatoes At a spot in the high Andes, water boils at 80.0°, greatly reducing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe54/thumbs-ed1ch13pe54-00002.png At a spot in the high Andes, water boils at 80.0°, greatly reducing the cooking speed of potatoes, for example. What is atmospheric pressure at this location? https://seo-videos.collegephysicsanswers.com/ch13/pe54/ed1ch13pe54.mp4 59 62 2020-05-12 yes 2020-05-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-day-temperature-250circtextrmc-and-relative-humidity-900-how-many-grams On a certain day, the temperature is 25.0° C and the relative… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe64/thumbs-ed1ch13pe64-00002.png On a certain day, the temperature is 25.0° C and the relative humidity is 90.0%. How many grams of water must condense out of each cubic meter of air if the temperature falls to 15.0° C ? Such a drop in temperature can, thus, produce heavy dew or fog. https://seo-videos.collegephysicsanswers.com/ch13/pe64/ed1ch13pe64.mp4 131 18 5 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-depth-fresh-water-critical-pressure-water-reached-given-surface-sea-level-b (a) At what depth in fresh water is the critical pressure of water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe66/thumbs-ed1ch13pe66-00002.png (a) At what depth in fresh water is the critical pressure of water reached, given that the surface is at sea level? (b) At what temperature will this water boil? (c) Is a significantly higher temperature needed to boil water at a greater depth? https://seo-videos.collegephysicsanswers.com/ch13/pe66/ed1ch13pe66.mp4 272 18 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-relative-humidity-80-day-when-temperature-300circtextrmc-what-will Suppose the relative humidity is 80% on a day when the temperature is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe72/thumbs-ed1ch13pe72-00002.png Suppose the relative humidity is 80% on a day when the temperature is 30.0° C . (a) What will the relative humidity be if the air cools to 25.0° C and the vapor density remains constant? (b) What is unreasonable about this result? (c) Which premise is responsible? https://seo-videos.collegephysicsanswers.com/ch13/pe72/ed1ch13pe72.mp4 124 15 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-want-cook-water-150circtextrmc-you-need-pressure-cooker-can-withstand If you want to cook in water at 150° C , you need a pressure cooker… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe68/thumbs-ed1ch13pe68-00002.png If you want to cook in water at 150° C , you need a pressure cooker that can withstand the necessary pressure. (a) What pressure is required for the boiling point of water to be this high? (b) If the lid of the pressure cooker is a disk 25.0 cm in diameter, what force must it be able to withstand at this pressure? https://seo-videos.collegephysicsanswers.com/ch13/pe68/ed1ch13pe68.mp4 247 20 5 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/automobile-mechanic-claims-aluminum-rod-fits-loosely-its-hole-aluminum-engine (a) An automobile mechanic claims that an aluminum rod fits loosely… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe70/thumbs-ed1ch13pe70-00002.png (a) An automobile mechanic claims that an aluminum rod fits loosely into its hole on an aluminum engine block because the engine is hot and the rod is cold. If the hole is 10.0% bigger in diameter than the 22.0° C rod, at what temperature will the rod be the same size as the hole? (b) What is unreasonable about this temperature? (c) Which premise is responsible? https://seo-videos.collegephysicsanswers.com/ch13/pe70/ed1ch13pe70.mp4 311 6 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0250-kg-aluminum-bowl-holding-0800-kg-soup-250circtextrmc-placed-freezer-what A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0° C is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe23/thumbs-ed1ch14pe23-00002.png A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0° C is placed in a freezer. What is the final temperature if 377 kJ of energy is transferred from the bowl and soup, assuming the soup’s thermal properties are the same as that of water? Explicitly show how you follow the steps in Problem-Solving Strategies for the Effects of Heat Transfer. https://seo-videos.collegephysicsanswers.com/ch14/pe23/ed1ch14pe23.mp4 367 154 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-gun-fanciers-make-their-own-bullets-which-involves-melting-and-casting-lead Some gun fanciers make their own bullets, which involves melting and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe29/thumbs-ed1ch14pe29-00002.png Some gun fanciers make their own bullets, which involves melting and casting the lead slugs. How much heat transfer is needed to raise the temperature and melt 0.500 kg of lead, starting from 25.0]° C ? https://seo-videos.collegephysicsanswers.com/ch14/pe29/ed1ch14pe29.mp4 86 79 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-would-be-final-temperature-pan-and-water-calculating-final-temperature-when What would be the final temperature of the pan and water in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe27/thumbs-ed1ch14pe27-00002.png What would be the final temperature of the pan and water in [Calculating the Final Temperature When Heat Is Transferred Between Two Bodies: Pouring Cold Water in a Hot Pan](https://openstax.org/books/college-physics/pages/14-2-temperature-change-and-heat-capacity#fs-id2604602) (Example 14.3) if 0.260 kg of water was placed in the pan and 0.0100 kg of the water evaporated immediately, leaving the remainder to come to a common temperature with the pan? https://seo-videos.collegephysicsanswers.com/ch14/pe27/ed1ch14pe27.mp4 301 46 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rate-heat-conduction-out-window-winter-day-rapid-enough-chill-air-next-it-see The rate of heat conduction out of a window on a winter day is rapid… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe31/thumbs-ed1ch14pe31-00002.png The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to it. To see just how rapidly the windows transfer heat by conduction, calculate the rate of conduction in watts through a 3.00 m ^2 window that is 0.635 cm thick (1/4 in) if the temperatures of the inner and outer surfaces are 5.00° C and -10.0° C , respectively. This rapid rate will not be maintained—the inner surface will cool, and even result in frost formation. https://seo-videos.collegephysicsanswers.com/ch14/pe31/ed1ch14pe31.mp4 141 297 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-1-calgcdottextrmccirc-1textrm-kcalkgcdottextrmccirc Show that 1 cal/g \cdot C ° = 1 kcal/kg \cdot C ° | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe02/thumbs-ed1ch14pe02-00002.png Show that 1 cal/g \cdot C ° = 1 kcal/kg \cdot C ° https://seo-videos.collegephysicsanswers.com/ch14/pe02/ed1ch14pe02.mp4 39 64 2020-05-13 yes 2020-05-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-pour-00100-kg-200-circtextrmc-water-120-kg-block-ice-which-initially If you pour 0.0100 kg of 20.0 ° C water onto a 1.20-kg block of ice… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe25/thumbs-ed1ch14pe25-00002.png If you pour 0.0100 kg of 20.0 ° C water onto a 1.20-kg block of ice (which is initially at -15.0° C ), what is the final temperature? You may assume that the water cools so rapidly that effects of the surroundings are negligible. https://seo-videos.collegephysicsanswers.com/ch14/pe25/ed1ch14pe25.mp4 723 158 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-stand-one-foot-ceramic-flooring-and-one-foot-wool-carpet-making Suppose you stand with one foot on ceramic flooring and one foot on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe33/thumbs-ed1ch14pe33-00002.png Suppose you stand with one foot on ceramic flooring and one foot on a wool carpet, making contact over an area of 80.0 cm ^2 with each foot. Both the ceramic and the carpet are 2.00 cm thick and are 10.0° C on their bottom sides. At what rate must heat transfer occur from each foot to keep the top of the ceramic and carpet at 33.0° C ? https://seo-videos.collegephysicsanswers.com/ch14/pe33/ed1ch14pe33.mp4 206 80 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/firewalker-runs-across-bed-hot-coals-without-sustaining-burns-calculate-heat (a) A firewalker runs across a bed of hot coals without sustaining… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe35/thumbs-ed1ch14pe35-00002.png (a) A firewalker runs across a bed of hot coals without sustaining burns. Calculate the heat transferred by conduction into the sole of one foot of a firewalker given that the bottom of the foot is a 3.00-mm-thick callus with a conductivity at the low end of the range for wood and its density is 300 kg/m ^3. The area of contact is 25.0 cm ^2, the temperature of the coals is 700 ° C , and the time in contact is 1.00 s. (b) What temperature increase is produced in the 25.0 cm ^3 of tissue affected? (c) What effect do you think this will have on the tissue, keeping in mind that a callus is made of dead cells? https://seo-videos.collegephysicsanswers.com/ch14/pe35/ed1ch14pe35.mp4 211 101 3 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/walrus-transfers-energy-conduction-through-its-blubber-rate-150-w-when-immersed A walrus transfers energy by conduction through its blubber at the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe37/thumbs-ed1ch14pe37-00002.png A walrus transfers energy by conduction through its blubber at the rate of 150 W when immersed in -1.00 ° C water. The walrus’s internal core temperature is 37.0° C , and it has a surface area of 2.00 m ^2. What is the average thickness of its blubber, which has the conductivity of fatty tissues without blood? https://seo-videos.collegephysicsanswers.com/ch14/pe37/ed1ch14pe37.mp4 143 73 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-easy-way-reduce-heating-and-cooling-costs-add-extra-insulation-attic-house One easy way to reduce heating (and cooling) costs is to add extra… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe41/thumbs-ed1ch14pe41-00002.png One easy way to reduce heating (and cooling) costs is to add extra insulation in the attic of a house. Suppose the house already had 15 cm of fiberglass insulation in the attic and in all the exterior surfaces. If you added an extra 8.0 cm of fiberglass to the attic, then by what percentage would the heating cost of the house drop? Take the single story house to be of dimensions 10 m by 15 m by 3.0 m. Ignore air infiltration and heat loss through windows and doors. https://seo-videos.collegephysicsanswers.com/ch14/pe41/ed1ch14pe41.mp4 455 72 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wind-speed-does-10circtextrmc-air-cause-same-chill-factor-still-air At what wind speed does -10° C air cause the same chill factor as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe45/thumbs-ed1ch14pe45-00002.png At what wind speed does -10° C air cause the same chill factor as still air at -29° C ? https://seo-videos.collegephysicsanswers.com/ch14/pe45/ed1ch14pe45.mp4 64 60 4.5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/many-decisions-are-made-basis-payback-period-time-it-will-take-through-savings Many decisions are made on the basis of the payback period: the time… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe43/thumbs-ed1ch14pe43-00002.png Many decisions are made on the basis of the payback period: the time it will take through savings to equal the capital cost of an investment. Acceptable payback times depend upon the business or philosophy one has. (For some industries, a payback period is as small as two years.) Suppose you wish to install the extra insulation in [Exercise 14.41](/node/22304). If energy cost \$1.00 per million joules and the insulation was \$4.00 per square meter, then calculate the simple payback time. Take the average \Delta T for the 120 day heating season to be 15.0 C °. https://seo-videos.collegephysicsanswers.com/ch14/pe43/ed1ch14pe43.mp4 340 42 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/steam-above-freshly-made-cup-instant-coffee-really-water-vapor-droplets The “steam” above a freshly made cup of instant coffee is really… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe47/thumbs-ed1ch14pe47-00002.png The “steam” above a freshly made cup of instant coffee is really water vapor droplets condensing after evaporating from the hot coffee. What is the final temperature of 250 g of hot coffee initially at 90.0° C if 2.00 g evaporates from it? The coffee is in a Styrofoam cup, so other methods of heat transfer can be neglected. https://seo-videos.collegephysicsanswers.com/ch14/pe47/ed1ch14pe47.mp4 169 92 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-dry-day-evaporation-lake-has-just-enough-heat-transfer-balance-100-kwm2 On a hot dry day, evaporation from a lake has just enough heat… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe49/thumbs-ed1ch14pe49-00002.png On a hot dry day, evaporation from a lake has just enough heat transfer to balance the 1.00 kW/m ^2 of incoming heat from the Sun. What mass of water evaporates in 1.00 h from each square meter? Explicitly show how you follow the steps in the Problem-Solving Strategies for the Methods of Heat Transfer. https://seo-videos.collegephysicsanswers.com/ch14/pe49/ed1ch14pe49.mp4 175 94 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/even-when-shut-down-after-period-normal-use-large-commercial-nuclear-reactor Even when shut down after a period of normal use, a large commercial… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe10/thumbs-ed1ch14pe10-00002.png Even when shut down after a period of normal use, a large commercial nuclear reactor transfers thermal energy at the rate of 150 MW by the radioactive decay of fission products. This heat transfer causes a rapid increase in temperature if the cooling system fails (1 watt = 1 joule/second or 1 W = 1 J/s and 1 MW = 1 megawatt) . (a) Calculate the rate of temperature increase in degrees Celsius per second ( C ° /s ) if the mass of the reactor core is 1.60 x 10^{5} kg kg and it has an average specific heat of 0.3349 kJ/kgo ⋅ C . (b) How long would it take to obtain a temperature increase of 2000° C , which could cause some metals holding the radioactive materials to melt? (The initial rate of temperature increase would be greater than that calculated here because the heat transfer is concentrated in a smaller mass. Later, however, the temperature increase would slow down because the 5 x 10^{5} kg steel containment vessel would also begin to heat up.) https://seo-videos.collegephysicsanswers.com/ch14/pe10/ed1ch14pe10.mp4 129 127 2020-05-15 yes 2020-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-inhales-and-exhales-200-l-370circtextrmc-air-evaporating A person inhales and exhales 2.00 L of 37.0° C air, evaporating | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe53/thumbs-ed1ch14pe53-00002.png A person inhales and exhales 2.00 L of 37.0° C air, evaporating https://seo-videos.collegephysicsanswers.com/ch14/pe53/ed1ch14pe53.mp4 272 88 4 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-net-rate-heat-transfer-radiation-skier-standing-shade-given-following-she Find the net rate of heat transfer by radiation from a skier standing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe59/thumbs-ed1ch14pe59-00002.png Find the net rate of heat transfer by radiation from a skier standing in the shade, given the following. She is completely clothed in white (head to foot, including a ski mask), the clothes have an emissivity of 0.200 and a surface temperature of 10.0° C , the surroundings are at -15.0° C , and her surface area is 1.60 m ^2. https://seo-videos.collegephysicsanswers.com/ch14/pe59/ed1ch14pe59.mp4 93 64 5 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/thermography-technique-measuring-radiant-heat-and-detecting-variations-surface Thermography is a technique for measuring radiant heat and detecting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe61/thumbs-ed1ch14pe61-00002.png Thermography is a technique for measuring radiant heat and detecting variations in surface temperatures that may be medically, environmentally, or militarily meaningful.(a) What is the percent increase in the rate of heat transfer by radiation from a given area at a temperature of 34.0° C compared with that at 33.0° C , such as on a person’s skin? (b) What is the percent increase in the rate of heat transfer by radiation from a given area at a temperature of 34.0° C compared with that at 20.0° C , such as for warm and cool automobile hoods? https://seo-videos.collegephysicsanswers.com/ch14/pe61/ed1ch14pe61.mp4 172 26 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-body-lava-volcano-has-stopped-flowing-and-slowly-cooling-interior-lava A large body of lava from a volcano has stopped flowing and is slowly… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe63/thumbs-ed1ch14pe63-00002.png A large body of lava from a volcano has stopped flowing and is slowly cooling. The interior of the lava is at 1200° C , its surface is at 450° C , and the surroundings are at 27.0° C . (a) Calculate the rate at which energy is transferred by radiation from 1.00 m ^2 of surface lava into the surroundings, assuming the emissivity is 1.00. (b) Suppose heat conduction to the surface occurs at the same rate. What is the thickness of the lava between the 450° C surface and the 1200 ° C interior, assuming that the lava’s conductivity is the same as that of brick? https://seo-videos.collegephysicsanswers.com/ch14/pe63/ed1ch14pe63.mp4 250 40 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/shirtless-rider-under-circus-tent-feels-heat-radiating-sunlit-portion-tent (a) A shirtless rider under a circus tent feels the heat radiating… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe65/thumbs-ed1ch14pe65-00002.png (a) A shirtless rider under a circus tent feels the heat radiating from the sunlit portion of the tent. Calculate the temperature of the tent canvas based on the following information: The shirtless rider’s skin temperature is 34.0° C and has an emissivity of 0.970. The exposed area of skin is 0.400 m ^2. He receives radiation at the rate of 20.0 W—half what you would calculate if the entire region behind him was hot. The rest of the surroundings are at 34.0° C . (b) Discuss how this situation would change if the sunlit side of the tent was nearly pure white and if the rider was covered by a white tunic. https://seo-videos.collegephysicsanswers.com/ch14/pe65/ed1ch14pe65.mp4 303 38 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/760-kg-person-suffering-hypothermia-comes-indoors-and-shivers-vigorously-how A 76.0-kg person suffering from hypothermia comes indoors and shivers… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe71/thumbs-ed1ch14pe71-00002.png A 76.0-kg person suffering from hypothermia comes indoors and shivers vigorously. How long does it take the heat transfer to increase the person’s body temperature by 2.00 ° C if all other forms of heat transfer are balanced? https://seo-videos.collegephysicsanswers.com/ch14/pe71/ed1ch14pe71.mp4 94 20 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-electrical-power-facility-produces-1600-mw-waste-heat-which-dissipated (a) A large electrical power facility produces 1600 MW of “waste… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe69/thumbs-ed1ch14pe69-00002.png (a) A large electrical power facility produces 1600 MW of “waste heat,” which is dissipated to the environment in cooling towers by warming air flowing through the towers by 5.00 ° C . What is the necessary flow rate of air in m ^3 /s ? (b) Is your result consistent with the large cooling towers used by many large electrical power plants? https://seo-videos.collegephysicsanswers.com/ch14/pe69/ed1ch14pe69.mp4 243 8 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/heat-transfers-your-lungs-and-breathing-passages-evaporating-water-calculate Heat transfers from your lungs and breathing passages by evaporating… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe73/thumbs-ed1ch14pe73-00002.png Heat transfers from your lungs and breathing passages by evaporating water. (a) Calculate the maximum number of grams of water that can be evaporated when you inhale 1.50 L of 37° C air with an original relative humidity of 40.0%. (Assume that body temperature is also 37° C .) (b) How many joules of energy are required to evaporate this amount? (c) What is the rate of heat transfer in watts from this method, if you breathe at a normal resting rate of 10.0 breaths per minute? https://seo-videos.collegephysicsanswers.com/ch14/pe73/ed1ch14pe73.mp4 217 10 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/slightly-deranged-arctic-inventor-surrounded-ice-thinks-it-would-be-much-less A slightly deranged Arctic inventor surrounded by ice thinks it would… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe77/thumbs-ed1ch14pe77-00002.png A slightly deranged Arctic inventor surrounded by ice thinks it would be much less mechanically complex to cool a car engine by melting ice on it than by having a water-cooled system with a radiator, water pump, antifreeze, and so on. (a) If 80.0% of the energy in 1.00 gal of gasoline is converted into “waste heat” in a car engine, how many kilograms of 0° C ice could it melt? (b) Is this a reasonable amount of ice to carry around to cool the engine for 1.00 gal of gasoline consumption? (c) What premises or assumptions are unreasonable? https://seo-videos.collegephysicsanswers.com/ch14/pe77/ed1ch14pe77.mp4 173 4 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-air-rises-because-it-has-expanded-it-then-displaces-greater-volume-cold-air Hot air rises because it has expanded. It then displaces a greater… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe75/thumbs-ed1ch14pe75-00002.png Hot air rises because it has expanded. It then displaces a greater volume of cold air, which increases the buoyant force on it. (a) Calculate the ratio of the buoyant force to the weight of 50.0° C air surrounded by 20.0° C air. (b) What energy is needed to cause 1.00 m ^3 of air to go from 20.0° C to 50.0° C ? (c) What gravitational potential energy is gained by this volume of air if it rises 1.00 m? Will this cause a significant cooling of the air? https://seo-videos.collegephysicsanswers.com/ch14/pe75/ed1ch14pe75.mp4 600 8 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ice-cube-placed-cup-hot-water-which-following-statements-correctly-describes An ice cube is placed in a cup of hot water. Which of the following… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap01/thumbs-ed1ch14ap01-00002.png An ice cube is placed in a cup of hot water. Which of the following statements correctly describes energy transfer at the molecular level? (a) Kinetic energy is transferred only from the hot water molecules to the water molecules in the ice.(b) Kinetic energy is transferred only from the water molecules in the ice to the hot water molecules.(c) Kinetic energy is transferred mostly from the hot water molecules to the water molecules in the ice.(d) Kinetic energy is transferred mostly from the water molecules in the ice to the hot water molecules. https://seo-videos.collegephysicsanswers.com/ch14/ap01/ed1ch14ap01.mp4 40 6 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-you-devised-example-141-which-variables-can-be-changed-and-how-should For the experiment that you devised Example 14.1, which variables can… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap05/thumbs-ed1ch14ap05-00002.png For the experiment that you devised Example 14.1, which variables can be changed, and how should they be changed, so as to shorten the time in which a measurement is made? (a) Use a smaller quantity of ice (smaller m).(b) Use containers with greater thickness (larger d).(c) Use containers with smaller surface areas (smaller A).(d) Use a lower ambient temperature outside the container (smaller T2). https://seo-videos.collegephysicsanswers.com/ch14/ap05/ed1ch14ap05.mp4 96 4 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/under-which-two-conditions-would-convection-fluid-be-greatest-gravitational Under which two conditions would convection in a fluid be greatest?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/ap07/thumbs-ed1ch14ap07-00002.png Under which two conditions would convection in a fluid be greatest? (a) The gravitational acceleration is large, and the fluid density varies greatly for a given temperature change.(b) The gravitational acceleration is small, and the fluid density varies greatly for a given temperature change.(c) The gravitational acceleration is large, and the fluid density varies slightly for a given temperature change.(d) The gravitational acceleration is small, and the fluid density varies slightly for a given temperature change. https://seo-videos.collegephysicsanswers.com/ch14/ap07/ed1ch14ap07.mp4 213 4 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/meteorite-120-cm-diameter-so-hot-immediately-after-penetrating-atmosphere-it A meteorite 1.20 cm in diameter is so hot immediately after… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe79/thumbs-ed1ch14pe79-00002.png A meteorite 1.20 cm in diameter is so hot immediately after penetrating the atmosphere that it radiates 20.0 kW of power. (a) What is its temperature, if the surroundings are at 20.0° C and it has an emissivity of 0.800? (b) What is unreasonable about this result? (c) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch14/pe79/ed1ch14pe79.mp4 255 4 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cylinder-divided-half-movable-disk-middleach-half-filled-equal-number-gas A cylinder is divided in half by a movable disk in the middlEach half… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap01/thumbs-ed1ch15ap01-00002.png A cylinder is divided in half by a movable disk in the middlEach half is filled with an equal number of gas molecules, but one half is at a higher temperature than the other. Which choice best describes what happens next?(a) Nothing.(b) The high temperature side expands, compressing the low temperature side.(c) Heat moves from hot to cold, so the low temperature. side will gradually increase in temperature and expand(d) (b) happens quickly, but after that (c) happens more slowly. https://seo-videos.collegephysicsanswers.com/ch15/ap01/ed1ch15ap01.mp4 67 2 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-dry-sunny-day-swimming-pools-temperature-would-rise-150circtextrmc-if On a certain dry sunny day, a swimming pool’s temperature would rise… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe16/thumbs-ed1ch14pe16-00002.png On a certain dry sunny day, a swimming pool’s temperature would rise by 1.50° C if not for evaporation. What fraction of the water must evaporate to carry away precisely enough energy to keep the temperature constant? https://seo-videos.collegephysicsanswers.com/ch14/pe16/ed1ch14pe16.mp4 160 96 5 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1986-gargantuan-iceberg-broke-away-ross-ice-shelf-antarctica-it-was In 1986, a gargantuan iceberg broke away from the Ross Ice Shelf in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe18/thumbs-ed1ch14pe18-00002.png In 1986, a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long, 40.0 km wide, and 250 m thick. (a) What is the mass of this iceberg, given that the density of ice is 917 kg/m ^3 ? (b) How much heat transfer (in joules) is needed to melt it? (c) How many years would it take sunlight alone to melt ice this thick, if the ice absorbs an average of 100 W/m ^2, 12.00 h per day? https://seo-videos.collegephysicsanswers.com/ch14/pe18/ed1ch14pe18.mp4 205 295 4 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/help-prevent-frost-damage-400-kg-0circtextrmc-water-sprayed-fruit-tree-how-much To help prevent frost damage, 4.00 kg of 0° C water is sprayed onto… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe22/thumbs-ed1ch14pe22-00002.png To help prevent frost damage, 4.00 kg of 0° C water is sprayed onto a fruit tree. (a) How much heat transfer occurs as the water freezes? (b) How much would the temperature of the 200-kg tree decrease if this amount of heat transferred from the tree? Take the specific heat to be 3.35 kJ/kg \cdot C °, and assume that no phase change occurs. https://seo-videos.collegephysicsanswers.com/ch14/pe22/ed1ch14pe22.mp4 92 102 5 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/man-consumes-3000-kcal-food-one-day-converting-most-it-maintain-body-temperature A man consumes 3000 kcal of food in one day, converting most of it to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe34/thumbs-ed1ch14pe34-00002.png A man consumes 3000 kcal of food in one day, converting most of it to maintain body temperature. If he loses half this energy by evaporating water (through breathing and sweating), how many kilograms of water evaporate? https://seo-videos.collegephysicsanswers.com/ch14/pe34/ed1ch14pe34.mp4 39 104 5 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/based-keplers-laws-and-information-orbital-characteristics-moon-calculate (a) Based on Kepler's laws and information on the orbital… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe49/thumbs-ed1ch06pe49-00002.png (a) Based on Kepler's laws and information on the orbital characteristics of the Moon, calculate the orbital radius for an Earth satellite having a period of 1.00 h. (b) What is unreasonable about this result? (c) What is unreasonable or inconsistent about the premise of a 1.00 h orbit? https://seo-videos.collegephysicsanswers.com/ch06/pe49/ed1ch06pe49.mp4 125 95 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-1544-how-much-work-done-system-process-ab-45-times-103-j-60-times-103-j In Figure 15.44, how much work is done by the system in process AB?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap07/thumbs-ed1ch15ap07-00002.png In Figure 15.44, how much work is done by the system in process AB? (a) 4.5 x 10^3 J (b) 6.0 x 10^3 J (c) 6.9 x 10^3 J (d) 7.8 x 10^3 J https://seo-videos.collegephysicsanswers.com/ch15/ap07/ed1ch15ap07.mp4 87 2 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/piston-resting-halfway-cylinder-containing-gas-thermal-equilibrium-layer A piston is resting halfway into a cylinder containing gas in thermal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/ap15/thumbs-ed1ch15ap15-00002.png A piston is resting halfway into a cylinder containing gas in thermal equilibrium. The layer of molecules next to the closed end of the cylinder is suddenly flash-heated to a very high temperature. Which best describes what happens next? (a) The high temperature molecules push out the piston until their energy is reduced enough that the system is in equilibrium.(b) The molecules with the highest temperature bounce off their neighbors, losing energy to them, and so on until the system is at a new equilibrium with the piston moved out.(c) The molecules with the highest temperature bounce off their neighbors, losing energy to them, and so on until the system is at a new equilibrium with the piston where it started.(d) The high temperature molecules push out the piston until their energy is reduced enough that the system is in equilibrium, and then the piston gets sucked back in. https://seo-videos.collegephysicsanswers.com/ch15/ap15/ed1ch15ap15.mp4 39 2 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/formula-g-dfracgmr2-what-does-g-represent-acceleration-due-gravity-gravitational In the formula g = \dfrac{GM}{r^2}, what does G represent?(a) The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/ap03/thumbs-ed1ch06ap03-00002.png In the formula g = \dfrac{GM}{r^2}, what does G represent?(a) The acceleration due to gravity(b) A gravitational constant that is the same everywhere in the universe(c) A gravitational constant that is inversely proportional to the radius(d) The factor by which you multiply the inertial mass to obtain the gravitational mass https://seo-videos.collegephysicsanswers.com/ch06/ap03/ed1ch06ap03.mp4 12 6 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/jupiter-has-mass-approximately-300-times-greater-earths-and-radius-about-11 Jupiter has a mass approximately 300 times greater than Earth's and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/ap01/thumbs-ed1ch06ap01-00002.png Jupiter has a mass approximately 300 times greater than Earth's and a radius about 11 times greater. How will the gravitational acceleration at the surface of Jupiter compare to that at the surface of the Earth?(a) Greater(b) Less(c) About the same(d) Not enough information https://seo-videos.collegephysicsanswers.com/ch06/ap01/ed1ch06ap01.mp4 72 14 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/recently-discovered-planet-has-mass-twice-great-earths-and-radius-twice-large A recently discovered planet has a mass twice as great as Earth's and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/ap05/thumbs-ed1ch06ap05-00002.png A recently discovered planet has a mass twice as great as Earth's and a radius twice as large as Earth's. What will be the approximate size of its gravitational field?(a) 19 m/s2(b) 4.9 m/s2(c) 2.5 m/s2(d) 9.8 m/s2 https://seo-videos.collegephysicsanswers.com/ch06/ap05/ed1ch06ap05.mp4 58 16 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/indigenous-people-sometimes-cook-watertight-baskets-placing-hot-rocks-water Indigenous people sometimes cook in watertight baskets by placing hot… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe26/thumbs-ed1ch14pe26-00002.png Indigenous people sometimes cook in watertight baskets by placing hot rocks into water to bring it to a boil. What mass of 500° C rock must be placed in 4.00 kg of 15.0° C water to bring its temperature to 100° C , if 0.0250 kg of water escapes as vapor from the initial sizzle? You may neglect the effects of the surroundings and take the average specific heat of the rocks to be that of granite. https://seo-videos.collegephysicsanswers.com/ch14/pe26/ed1ch14pe26.mp4 235 108 5 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-countries-liquid-nitrogen-used-dairy-trucks-instead-mechanical In some countries, liquid nitrogen is used on dairy trucks instead of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe28/thumbs-ed1ch14pe28-00002.png In some countries, liquid nitrogen is used on dairy trucks instead of mechanical refrigerators. A 3.00-hour delivery trip requires 200 L of liquid nitrogen, which has a density of 808 kg/m ^3. (a) Calculate the heat transfer necessary to evaporate this amount of liquid nitrogen and raise its temperature to 3.00° C . (Use c_p and assume it is constant over the temperature range.) This value is the amount of cooling the liquid nitrogen supplies. (b) What is this heat transfer rate in kilowatt-hours? (c) Compare the amount of cooling obtained from melting an identical mass of 0° C ice with that from evaporating the liquid nitrogen. https://seo-videos.collegephysicsanswers.com/ch14/pe28/ed1ch14pe28.mp4 277 66 2020-05-16 yes 2020-05-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-stove-tops-are-smooth-ceramic-easy-cleaning-if-ceramic-0600-cm-thick-and Some stove tops are smooth ceramic for easy cleaning. If the ceramic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe40/thumbs-ed1ch14pe40-00002.png Some stove tops are smooth ceramic for easy cleaning. If the ceramic is 0.600 cm thick and heat conduction occurs through the same area and at the same rate as computed in [Example 14.6](https://openstax.org/books/college-physics/pages/14-5-conduction#fs-id2520944), what is the temperature difference across it? Ceramic has the same thermal conductivity as glass and brick. **Note:** From the example, the circular stove element has a diameter of 14.0 cm, and the rate of heat transfer is 2256 J/s. https://seo-videos.collegephysicsanswers.com/ch14/pe40/ed1ch14pe40.mp4 88 52 5 2020-05-17 yes 2020-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/human-body-what-rate-heat-transfer-conduction-through-bodys-tissue-following For the human body, what is the rate of heat transfer by conduction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe44/thumbs-ed1ch14pe44-00002.png For the human body, what is the rate of heat transfer by conduction through the body’s tissue with the following conditions: the tissue thickness is 3.00 cm, the change in temperature is 2.00 C ° , and the skin area is 1.50 m ^2 . How does this compare with the average heat transfer rate to the body resulting from an energy intake of about 2400 kcal per day? (No exercise is included.) https://seo-videos.collegephysicsanswers.com/ch14/pe44/ed1ch14pe44.mp4 99 30 3 2020-05-17 yes 2020-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-rate-heat-conduction-through-300-cm-thick-fur-large-animal-having-140textrm (a) What is the rate of heat conduction through the 3.00-cm-thick fur… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe36/thumbs-ed1ch14pe36-00002.png (a) What is the rate of heat conduction through the 3.00-cm-thick fur of a large animal having a 1.40 m ^2 surface area? Assume that the animal’s skin temperature is 32.0° C , that the air temperature is -5.00° C , and that fur has the same thermal conductivity as air. (b) What food intake will the animal need in one day to replace this heat transfer? https://seo-videos.collegephysicsanswers.com/ch14/pe36/ed1ch14pe36.mp4 135 137 3 2020-05-17 yes 2020-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/compare-rate-heat-conduction-through-130-cm-thick-wall-has-area-100textrm-m2-and Compare the rate of heat conduction through a 13.0-cm- thick wall… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe38/thumbs-ed1ch14pe38-00002.png Compare the rate of heat conduction through a 13.0-cm- thick wall that has an area of 10.0 m ^2 and a thermal conductivity twice that of glass wool with the rate of heat conduction through a window that is 0.750 cm thick and that has an area of 2.00 m ^2, assuming the same temperature difference across each. https://seo-videos.collegephysicsanswers.com/ch14/pe38/ed1ch14pe38.mp4 209 89 5 2020-05-17 yes 2020-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rate-heat-conduction-through-double-paned-window-has-150textrm-m2-area (a) Calculate the rate of heat conduction through a double-paned… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe42/thumbs-ed1ch14pe42-00002.png (a) Calculate the rate of heat conduction through a double-paned window that has a 1.50 m ^2 area and is made of two panes of 0.800-cm-thick glass separated by a 1.00-cm air gap. The inside surface temperature is 15.0° C , while that on the outside is -10.0° C . (Hint: There are identical temperature drops across the two glass panes. First find these and then the temperature drop across the air gap. This problem ignores the increased heat transfer in the air gap due to convection.) (b) Calculate the rate of heat conduction through a 1.60-cm- thick window of the same area and with the same temperatures. Compare your answer with that for part (a). https://seo-videos.collegephysicsanswers.com/ch14/pe42/ed1ch14pe42.mp4 714 88 3.7 2020-05-17 yes 2020-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hand-driven-tire-pump-has-piston-250-cm-diameter-and-maximum-stroke-300-cm-how A hand-driven tire pump has a piston with a 2.50-cm diameter and a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe13/thumbs-ed1ch15pe13-00002.png A hand-driven tire pump has a piston with a 2.50-cm diameter and a maximum stroke of 30.0 cm. (a) How much work do you do in one stroke if the average gauge pressure is 2.40 x 10^5 N/m ^2 (about 35 psi)? (b) What average force do you exert on the piston, neglecting friction and gravitational force? https://seo-videos.collegephysicsanswers.com/ch15/pe13/ed1ch15pe13.mp4 97 125 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cyclical-heat-engine-operating-between-temperatures-450circtextrmc-and (a) A cyclical heat engine, operating between temperatures of 450° C … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe17/thumbs-ed1ch15pe17-00002.png (a) A cyclical heat engine, operating between temperatures of 450° C and 150° C produces 4.00 MJ of work on a heat transfer of 5.00 MJ into the engine. How much heat transfer occurs to the environment? (b) What is unreasonable about the engine? (c) Which premise is unreasonable? https://seo-videos.collegephysicsanswers.com/ch15/pe17/ed1ch15pe17.mp4 104 60 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-efficiency-cyclical-heat-engine-which-750-kj-heat-transfer-occurs (a) What is the efficiency of a cyclical heat engine in which 75.0 kJ… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe23/thumbs-ed1ch15pe23-00002.png (a) What is the efficiency of a cyclical heat engine in which 75.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine? (b) How much work does it produce for 100 kJ of heat transfer into the engine? https://seo-videos.collegephysicsanswers.com/ch15/pe23/ed1ch15pe23.mp4 53 74 4 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/256-times-106-j-heat-transfer-engine-given-cyclical-heat-engine-can-do-only-150 With 2.56 x 10^6 J of heat transfer into this engine, a given… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe21/thumbs-ed1ch15pe21-00002.png With 2.56 x 10^6 J of heat transfer into this engine, a given cyclical heat engine can do only 1.50 x 10^5 J of work. (a) What is the engine's efficiency? (b) How much heat transfer to the environment takes place? https://seo-videos.collegephysicsanswers.com/ch15/pe21/ed1ch15pe21.mp4 66 104 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-heat-transfer-occurs-environment-electrical-power-station-uses-125 (a) How much heat transfer occurs to the environment by an electrical… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe25/thumbs-ed1ch15pe25-00002.png (a) How much heat transfer occurs to the environment by an electrical power station that uses 1.25 x 10^{14} J of heat transfer into the engine with an efficiency of 42.0%? (b) What is the ratio of heat transfer to the environment to work output? (c) How much work is done? https://seo-videos.collegephysicsanswers.com/ch15/pe25/ed1ch15pe25.mp4 223 116 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gas-cooled-nuclear-reactor-operates-between-hot-and-cold-reservoir-temperatures A gas-cooled nuclear reactor operates between hot and cold reservoir… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe29/thumbs-ed1ch15pe29-00002.png A gas-cooled nuclear reactor operates between hot and cold reservoir temperatures of 700° C and 27.0° C . (a) What is the maximum efficiency of a heat engine operating between these temperatures? (b) Find the ratio of this efficiency to the Carnot efficiency of a standard nuclear reactor (found in Example 15.4). https://seo-videos.collegephysicsanswers.com/ch15/pe29/ed1ch15pe29.mp4 46 128 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cherry-red-embers-fireplace-are-850circtextrmc-and-have-exposed-area-0200-m2-and (a) Cherry-red embers in a fireplace are at 850° C and have an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe56/thumbs-ed1ch14pe56-00002.png (a) Cherry-red embers in a fireplace are at 850° C and have an exposed area of 0.200 m2 and an emissivity of 0.980. The surrounding room has a temperature of 18.0° C . If 50% of the radiant energy enters the room, what is the net rate of radiant heat transfer in kilowatts? (b) Does your answer support the contention that most of the heat transfer into a room by a fireplace comes from infrared radiation? https://seo-videos.collegephysicsanswers.com/ch14/pe56/ed1ch14pe56.mp4 158 65 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rate-heat-transfer-radiation-car-radiator-110circtextrmc (a) Calculate the rate of heat transfer by radiation from a car… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe58/thumbs-ed1ch14pe58-00002.png (a) Calculate the rate of heat transfer by radiation from a car radiator at 110° C into a 50.0° C environment, if the radiator has an emissivity of 0.750 and a 1.20 m ^2 surface area. (b) Is this a significant fraction of the heat transfer by an automobile engine? To answer this, assume a horsepower of 200 hp and the efficiency of automobile engines as 25%. https://seo-videos.collegephysicsanswers.com/ch14/pe58/ed1ch14pe58.mp4 176 166 3.5 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-does-still-air-cause-same-chill-factor-5circtextrmc-air-moving At what temperature does still air cause the same chill factor as -5°… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe46/thumbs-ed1ch14pe46-00002.png At what temperature does still air cause the same chill factor as -5° C air moving at 15 m/s? https://seo-videos.collegephysicsanswers.com/ch14/pe46/ed1ch14pe46.mp4 52 58 5 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-winter-day-climate-control-system-large-university-classroom-building One winter day, the climate control system of a large university… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe50/thumbs-ed1ch14pe50-00002.png One winter day, the climate control system of a large university classroom building malfunctions. As a result, 500 m ^3 of excess cold air is brought in each minute. At what rate in kilowatts must heat transfer occur to warm this air by 10.0° C (that is, to bring the air to room temperature)? https://seo-videos.collegephysicsanswers.com/ch14/pe50/ed1ch14pe50.mp4 157 212 5 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/frozen-waste-airplane-toilets-has-sometimes-been-accidentally-ejected-high Frozen waste from airplane toilets has sometimes been accidentally… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe68/thumbs-ed1ch14pe68-00002.png Frozen waste from airplane toilets has sometimes been accidentally ejected at high altitude. Ordinarily it breaks up and disperses over a large area, but sometimes it holds together and strikes the ground. Calculate the mass of 0° C ice that can be melted by the conversion of kinetic and gravitational potential energy when a 20.0 kg piece of frozen waste is released at 12.0 km altitude while moving at 250 m/s and strikes the ground at 100 m/s (since less than 20.0 kg melts, a significant mess results). https://seo-videos.collegephysicsanswers.com/ch14/pe68/ed1ch14pe68.mp4 185 17 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-compares-energy-output-and-heat-transfer-environment-two-different-types This problem compares the energy output and heat transfer to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe27/thumbs-ed1ch15pe27-00002.png This problem compares the energy output and heat transfer to the environment by two different types of nuclear power stations—one with the normal efficiency of 34.0%, and another with an improved efficiency of 40.0%. Suppose both have the same heat transfer into the engine in one day, 2.50 x 10^{14} J . (a) How much more electrical energy is produced by the more efficient power station? (b) How much less heat transfer occurs to the environment by the more efficient power station? (One type of more efficient nuclear power station, the gas-cooled reactor, has not been reliable enough to be economically feasible in spite of its greater efficiency.) https://seo-videos.collegephysicsanswers.com/ch15/pe27/ed1ch15pe27.mp4 226 340 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-walk-sauna-has-ambient-temperature-500circtextrmc-calculate-rate Suppose you walk into a sauna that has an ambient temperature of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe60/thumbs-ed1ch14pe60-00002.png Suppose you walk into a sauna that has an ambient temperature of 50.0° C . (a) Calculate the rate of heat transfer to you by radiation given your skin temperature is 37.0° C , the emissivity of skin is 0.98, and the surface area of your body is 1.50 m ^2. (b) If all other forms of heat transfer are balanced (the net heat transfer is zero), at what rate will your body temperature increase if your mass is 75.0 kg? https://seo-videos.collegephysicsanswers.com/ch14/pe60/ed1ch14pe60.mp4 188 132 3 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/steam-locomotives-have-efficiency-170-and-operate-hot-steam-temperature Steam locomotives have an efficiency of 17.0% and operate with a hot… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe31/thumbs-ed1ch15pe31-00002.png Steam locomotives have an efficiency of 17.0% and operate with a hot steam temperature of 425° C . (a) What would the cold reservoir temperature be if this were a Carnot engine? (b) What would the maximum efficiency of this steam engine be if its cold reservoir temperature were 150° C ? https://seo-videos.collegephysicsanswers.com/ch15/pe31/ed1ch15pe31.mp4 116 107 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/coal-fired-electrical-power-station-has-efficiency-38-temperature-steam-leaving A coal-fired electrical power station has an efficiency of 38%. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe33/thumbs-ed1ch15pe33-00002.png A coal-fired electrical power station has an efficiency of 38%. The temperature of the steam leaving the boiler is 550° C . What percentage of the maximum efficiency does this station obtain? (Assume the temperature of the environment is 20° C .) https://seo-videos.collegephysicsanswers.com/ch15/pe33/ed1ch15pe33.mp4 70 61 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-want-design-steam-engine-has-heat-transfer-environment (a) Suppose you want to design a steam engine that has heat transfer… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe35/thumbs-ed1ch15pe35-00002.png (a) Suppose you want to design a steam engine that has heat transfer to the environment at 270° C and has a Carnot efficiency of 0.800. What temperature of hot steam must you use? (b) What is unreasonable about the temperature? (c) Which premise is unreasonable? https://seo-videos.collegephysicsanswers.com/ch15/pe35/ed1ch15pe35.mp4 181 16 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-300circtextrmc-day-relative-humidity-750-and-evening-temperature-drops One 30.0° C day the relative humidity is 75.0% , and that evening… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe66/thumbs-ed1ch14pe66-00002.png One 30.0° C day the relative humidity is 75.0% , and that evening the temperature drops to 20.0° C , well below the dew point. (a) How many grams of water condense from each cubic meter of air? (b) How much heat transfer occurs by this condensation? (c) What temperature increase could this cause in dry air? https://seo-videos.collegephysicsanswers.com/ch14/pe66/ed1ch14pe66.mp4 250 18 5 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sun-radiates-perfect-black-body-emissivity-exactly-1-calculate-surface The Sun radiates like a perfect black body with an emissivity of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe62/thumbs-ed1ch14pe62-00002.png The Sun radiates like a perfect black body with an emissivity of exactly 1. (a) Calculate the surface temperature of the Sun, given that it is a sphere with a 7.00 x 10^{8} m radius that radiates 3.80 x 10^{26} W into 3-K space. (b) How much power does the Sun radiate per square meter of its surface? (c) How much power in watts per square meter is that value at the distance of Earth, 1.50 x 10^{11} m away? (This number is called the solar constant.) https://seo-videos.collegephysicsanswers.com/ch14/pe62/ed1ch14pe62.mp4 244 175 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-temperature-entire-sky-would-have-be-order-transfer-energy-radiation Calculate the temperature the entire sky would have to be in order to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe64/thumbs-ed1ch14pe64-00002.png Calculate the temperature the entire sky would have to be in order to transfer energy by radiation at 100 W/m ^2 — about the rate at which the Sun radiates when it is directly overhead on a clear day. This value is the effective temperature of the sky, a kind of average that takes account of the fact that the Sun occupies only a small part of the sky but is much hotter than the rest. Assume that the body receiving the energy has a temperature of 27.0° C . https://seo-videos.collegephysicsanswers.com/ch14/pe64/ed1ch14pe64.mp4 281 24 2020-05-20 yes 2020-05-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-large-geographic-regions-underlying-rock-hot-wells-can-be-drilled-and In certain large geographic regions, the underlying rock is hot.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe72/thumbs-ed1ch14pe72-00002.png In certain large geographic regions, the underlying rock is hot. Wells can be drilled and water circulated through the rock for heat transfer for the generation of electricity. (a) Calculate the heat transfer that can be extracted by cooling 1.00 km ^3 of granite by 100 C ° . (b) How long will this take if heat is transferred at a rate of 300 MW, assuming no heat transfers back into the 1.00 km of rock by its surroundings? https://seo-videos.collegephysicsanswers.com/ch14/pe72/ed1ch14pe72.mp4 138 12 2020-05-22 yes 2020-05-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-increase-water-falling-550-m-over-niagara-falls-b-what-fraction (a) What is the temperature increase of water falling 55.0 m over… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe74/thumbs-ed1ch14pe74-00002.png (a) What is the temperature increase of water falling 55.0 m over Niagara Falls? (b) What fraction must evaporate to keep the temperature constant? https://seo-videos.collegephysicsanswers.com/ch14/pe74/ed1ch14pe74.mp4 148 14 5 2020-05-22 yes 2020-05-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-best-coefficient-performance-heat-pump-has-hot-reservoir-temperature (a) What is the best coefficient of performance for a heat pump that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe41/thumbs-ed1ch15pe41-00002.png (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0° C and a cold reservoir temperature of -20.0° C ? (b) How much heat transfer occurs into the warm environment if 3.60 x 10^7 J of work (10.0 kW \cdot h ) is put into it? (c) If the cost of this work input is 10.0 cents / kW \cdot h , how does its cost compare with the direct heat transfer achieved by burning natural gas at a cost of 85.0 cents per therm. (A therm is a common unit of energy for natural gas and equals 1.055 x 10^8 J .) https://seo-videos.collegephysicsanswers.com/ch15/pe41/ed1ch15pe41.mp4 253 96 4 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-start-workout-stairmaster-producing-power-same-rate-climbing-116 (a) Suppose you start a workout on a Stairmaster, producing power at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe70/thumbs-ed1ch14pe70-00002.png (a) Suppose you start a workout on a Stairmaster, producing power at the same rate as climbing 116 stairs per minute. Assuming your mass is 76.0 kg and your efficiency is 20.0% , how long will it take for your body temperature to rise 1.00 C ° if all other forms of heat transfer in and out of your body are balanced? (b) Is this consistent with your experience in getting warm while exercising? https://seo-videos.collegephysicsanswers.com/ch14/pe70/ed1ch14pe70.mp4 180 46 2020-05-22 yes 2020-05-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-increase-800-kg-person-who-consumes-2500-kcal-food-one-day-950 (a) What is the temperature increase of an 80.0 kg person who… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe76/thumbs-ed1ch14pe76-00002.png (a) What is the temperature increase of an 80.0 kg person who consumes 2500 kcal of food in one day with 95.0% of the energy transferred as heat to the body? (b) What is unreasonable about this result? (c) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch14/pe76/ed1ch14pe76.mp4 104 36 2020-05-22 yes 2020-05-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-want-operate-ideal-refrigerator-cold-temperature-100circtextrmc-and Suppose you want to operate an ideal refrigerator with a cold… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe43/thumbs-ed1ch15pe43-00002.png Suppose you want to operate an ideal refrigerator with a cold temperature of -10.0° C , and you would like it to have a coefficient of performance of 7.00. What is the hot reservoir temperature for such a refrigerator? https://seo-videos.collegephysicsanswers.com/ch15/pe43/ed1ch15pe43.mp4 256 70 3.5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hot-rock-ejected-volcanos-lava-fountain-cools-1100circtextrmc-400circtextrmc-and A hot rock ejected from a volcano's lava fountain cools from 1100° C … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe49/thumbs-ed1ch15pe49-00002.png A hot rock ejected from a volcano's lava fountain cools from 1100° C to 40.0° C , and its entropy decreases by 950 J/K. How much heat transfer occurs from the rock? https://seo-videos.collegephysicsanswers.com/ch15/pe49/ed1ch15pe49.mp4 91 45 3.5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/winter-day-certain-house-loses-500-times-108-j-heat-outside-about-500000-btu (a) On a winter day, a certain house loses 5.00 x 10^8 J of heat to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe47/thumbs-ed1ch15pe47-00002.png (a) On a winter day, a certain house loses 5.00 x 10^8 J of heat to the outside (about 500,000 Btu). What is the total change in entropy due to this heat transfer alone, assuming an average indoor temperature of 21.0° C and an average outdoor temperature of 5.00° C ? (b) This large change in entropy implies a large amount of energy has become unavailable to do work. Where do we find more energy when such energy is lost to us? https://seo-videos.collegephysicsanswers.com/ch15/pe47/ed1ch15pe47.mp4 173 197 2.7 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sun-radiates-energy-rate-380-times-1026-w-its-5500circtextrm-c-surface-dark The Sun radiates energy at the rate of 3.80 x 10^26 W from its 5500°… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe51/thumbs-ed1ch15pe51-00002.png The Sun radiates energy at the rate of 3.80 x 10^26 W from its 5500° C surface into dark empty space (a negligible fraction radiates onto Earth and the other planets). The effective temperature of deep space is -270° C . (a) What is the increase in entropy in one day due to this heat transfer? (b) How much work is made unavailable? https://seo-videos.collegephysicsanswers.com/ch15/pe51/ed1ch15pe51.mp4 165 75 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-decrease-entropy-250-g-water-condenses-bathroom-mirror-temperature What is the decrease in entropy of 25.0 g of water that condenses on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe53/thumbs-ed1ch15pe53-00002.png What is the decrease in entropy of 25.0 g of water that condenses on a bathroom mirror at a temperature of 35.0° C , assuming no change in temperature and given the latent heat of vaporization to be 2450 kJ/kg? https://seo-videos.collegephysicsanswers.com/ch15/pe53/ed1ch15pe53.mp4 88 82 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-table-154-verify-contention-if-you-toss-100-coins-each-second-you-can Using Table 15.4, verify the contention that if you toss 100 coins… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe57/thumbs-ed1ch15pe57-00002.png Using Table 15.4, verify the contention that if you toss 100 coins each second, you can expect to get 100 heads or 100 tails once in 2 x 10^{22} years ; calculate the time to two- digit accuracy. https://seo-videos.collegephysicsanswers.com/ch15/pe57/ed1ch15pe57.mp4 120 14 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-change-internal-energy-system-which-does-450times-105textrm-j-work-while What is the change in internal energy of a system which does 4.50 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe04/thumbs-ed1ch15pe04-00002.png What is the change in internal energy of a system which does 4.50 x 10^{5} J of work while 3.00 x 10^{6} J of heat transfer occurs into the system, and 8.00 x 10^{6} J of heat transfer occurs to the environment? https://seo-videos.collegephysicsanswers.com/ch15/pe04/ed1ch15pe04.mp4 60 108 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-tossing-100-coins-how-many-ways-microstates-are-there-get-three-most-likely (a) If tossing 100 coins, how many ways (microstates) are there to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe59/thumbs-ed1ch15pe59-00002.png (a) If tossing 100 coins, how many ways (microstates) are there to get the three most likely macrostates of 49 heads and 51 tails, 50 heads and 50 tails, and 51 heads and 49 tails? (b) What percent of the total possibilities is this? (Consult Table 15.4.) https://seo-videos.collegephysicsanswers.com/ch15/pe59/ed1ch15pe59.mp4 64 100 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wrong-claim-cyclical-heat-engine-does-400-kj-work-input-240-kj-heat What is wrong with the claim that a cyclical heat engine does 4.00 kJ… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe16/thumbs-ed1ch15pe16-00002.png What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work on an input of 24.0 kJ of heat transfer while 16.0 kJ of heat transfers to the environment? https://seo-videos.collegephysicsanswers.com/ch15/pe16/ed1ch15pe16.mp4 54 60 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-electrical-power-station-generates-1000-mw-electricity-efficiency-350 A large electrical power station generates 1000 MW of electricity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe55/thumbs-ed1ch15pe55-00002.png A large electrical power station generates 1000 MW of electricity with an efficiency of 35.0%. (a) Calculate the heat transfer to the power station, Q_h , in one day. (b) How much heat transfer Q_c occurs to the environment in one day? (c) If the heat transfer in the cooling towers is from 35.0° C water into the local air mass, which increases in temperature from 18.0° C to 20.0° C , what is the total increase in entropy due to this heat transfer? (d) How much energy becomes unavailable to do work because of this increase in entropy, assuming an 18.0° C lowest temperature? (Part of Q_c could be utilized to operate heat engines or for simply heating the surroundings, but it rarely is.) https://seo-videos.collegephysicsanswers.com/ch15/pe55/ed1ch15pe55.mp4 313 60 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-change-entropy-if-you-start-10-coins-5-heads-and-5-tails-macrostate-toss (a) What is the change in entropy if you start with 10 coins in the 5… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe61/thumbs-ed1ch15pe61-00002.png (a) What is the change in entropy if you start with 10 coins in the 5 heads and 5 tails macrostate, toss them, and get 2 heads and 8 tails? (b) How much more likely is 5 heads and 5 tails than 2 heads and 8 tails? (Take the ratio of the number of microstates to find out.) (c) If you were betting on 2 heads and 8 tails would you accept odds of 252 to 45? Explain why or why not. https://seo-videos.collegephysicsanswers.com/ch15/pe61/ed1ch15pe61.mp4 312 26 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-units-dfracdelta-phidelta-t-are-volts-show-1-textrmt-cdot-textrmm2 Verify that the units of \dfrac{\Delta \Phi}{\Delta t} are volts.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe07/thumbs-ed1ch23pe07-00002.png Verify that the units of \dfrac{\Delta \Phi}{\Delta t} are volts. That is, show that 1 T \cdot m ^2 /s = 1 V https://seo-videos.collegephysicsanswers.com/ch23/pe07/ed1ch23pe07.mp4 148 110 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-food-energy-will-man-metabolize-process-doing-350-kj-work-efficiency (a) How much food energy will a man metabolize in the process of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe06/thumbs-ed1ch15pe06-00002.png (a) How much food energy will a man metabolize in the process of doing 35.0 kJ of work with an efficiency of 5.00%? (b) How much heat transfer occurs to the environment to keep his temperature constant? Explicitly show how you follow the steps in the Problem-Solving Strategy for thermodynamics found in Problem-Solving Strategies for Thermodynamics. https://seo-videos.collegephysicsanswers.com/ch15/pe06/ed1ch15pe06.mp4 109 85 1 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-work-output-cyclical-heat-engine-having-220-efficiency-and-600times (a) What is the work output of a cyclical heat engine having a 22.0%… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe22/thumbs-ed1ch15pe22-00002.png (a) What is the work output of a cyclical heat engine having a 22.0% efficiency and 6.00 x 10^{9} J of heat transfer into the engine? (b) How much heat transfer occurs to the environment? https://seo-videos.collegephysicsanswers.com/ch15/pe22/ed1ch15pe22.mp4 60 66 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-coin-dropped-airline-passenger-example-38-travels-144-m-horizontally Verify that the coin dropped by the airline passenger in the Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe55/thumbs-ed1ch03pe55-00002.png Verify that the coin dropped by the airline passenger in the Example 3.8 travels 144 m horizontally while falling 1.50 m in the frame of reference of the Earth. https://seo-videos.collegephysicsanswers.com/ch03/pe55/ed1ch03pe55.mp4 135 120 5 2018-02-20 yes 2018-02-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-wishes-design-experiment-show-acceleration-object-independent-objects A student wishes to design an experiment to show that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/ap03/thumbs-ed1ch03ap03-00002.png A student wishes to design an experiment to show that the acceleration of an object is independent of the object's velocity. To do this, ball A is launched horizontally with some initial speed at an elevation 1.5 meters above the ground, ball B is dropped from rest 1.5 meters above the ground, and ball C is launched vertically with some initial speed at an elevation 1.5 meters above the ground. What information would the student need to collect about each ball in order to test the hypothesis? https://seo-videos.collegephysicsanswers.com/ch03/ap03/ed1ch03ap03.mp4 108 12 1 2018-02-22 yes 2018-02-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-faradays-law-lenzs-law-and-rhr-1-show-magnetic-force-current-moving-rod Use Faraday’s law, Lenz’s law, and RHR-1 to show that the magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe15/thumbs-ed1ch23pe15-00002.png Use Faraday’s law, Lenz’s law, and RHR-1 to show that the magnetic force on the current in the moving rod in Figure 23.11 is in the opposite direction of its velocity. https://seo-videos.collegephysicsanswers.com/ch23/pe15/ed1ch23pe15.mp4 53 109 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/approximately-how-does-emf-induced-loop-figure-2357b-depend-distance-center-loop Approximately how does the emf induced in the loop in Figure 23.57(b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe13/thumbs-ed1ch23pe13-00002.png Approximately how does the emf induced in the loop in Figure 23.57(b) depend on the distance of the center of the loop from the wire? https://seo-videos.collegephysicsanswers.com/ch23/pe13/ed1ch23pe13.mp4 121 32 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-will-energy-1470-kj-350-kcal-cup-yogurt-last-woman-doing-work-rate-150 (a) How long will the energy in a 1470-kJ (350-kcal) cup of yogurt… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe08/thumbs-ed1ch15pe08-00002.png (a) How long will the energy in a 1470-kJ (350-kcal) cup of yogurt last in a woman doing work at the rate of 150 W with an efficiency of 20.0% (such as in leisurely climbing stairs)? (b) Does the time found in part (a) imply that it is easy to consume more food energy than you can reasonably expect to work off with exercise? https://seo-videos.collegephysicsanswers.com/ch15/pe08/ed1ch15pe08.mp4 101 96 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/steam-drive-old-fashioned-steam-locomotive-supplied-constant-gauge-pressure Steam to drive an old-fashioned steam locomotive is supplied at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe12/thumbs-ed1ch15pe12-00002.png Steam to drive an old-fashioned steam locomotive is supplied at a constant gauge pressure of 1.75 x 10^{6} N/m ^2 (about 250 psi) to a piston with a 0.200-m radius. (a) By calculating P\Delta V , find the work done by the steam when the piston moves 0.800 m. Note that this is the net work output, since gauge pressure is used. (b) Now find the amount of work by calculating the force exerted times the distance traveled. Is the answer the same as in part (a)? https://seo-videos.collegephysicsanswers.com/ch15/pe12/ed1ch15pe12.mp4 103 449 4 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-net-work-output-heat-engine-following-path-abcda-figure-below Calculate the net work output of a heat engine following path ABCDA… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe14/thumbs-ed1ch15pe14-00002.png Calculate the net work output of a heat engine following path ABCDA in the figure below. https://seo-videos.collegephysicsanswers.com/ch15/pe14/ed1ch15pe14.mp4 205 287 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-heat-engine-does-100-kj-work-and-850-kj-heat-transfer-occurs-environment A certain heat engine does 10.0 kJ of work and 8.50 kJ of heat… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe20/thumbs-ed1ch15pe20-00002.png A certain heat engine does 10.0 kJ of work and 8.50 kJ of heat transfer occurs to the environment in a cyclical process. (a) What was the heat transfer into this engine? (b) What was the engine’s efficiency? https://seo-videos.collegephysicsanswers.com/ch15/pe20/ed1ch15pe20.mp4 58 136 5 2020-05-26 yes 2020-05-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/would-you-be-willing-financially-back-inventor-who-marketing-device-she-claims Would you be willing to financially back an inventor who is marketing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe34/thumbs-ed1ch15pe34-00002.png Would you be willing to financially back an inventor who is marketing a device that she claims has 25 kJ of heat transfer at 600 K, has heat transfer to the environment at 300 K, and does 12 kJ of work? Explain your answer. https://seo-videos.collegephysicsanswers.com/ch15/pe34/ed1ch15pe34.mp4 57 69 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-cold-reservoir-temperature-steam-engine-uses-hot-steam-450circtextrmc Calculate the cold reservoir temperature of a steam engine that uses… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe36/thumbs-ed1ch15pe36-00002.png Calculate the cold reservoir temperature of a steam engine that uses hot steam at 450° C and has a Carnot efficiency of 0.700. (b) What is unreasonable about the temperature? (c) Which premise is unreasonable? https://seo-videos.collegephysicsanswers.com/ch15/pe36/ed1ch15pe36.mp4 81 12 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/derive-expression-current-system-figure-2311-under-following-conditions Derive an expression for the current in a system like that in Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe23/thumbs-ed1ch23pe23-00002.png Derive an expression for the current in a system like that in Figure 23.11, under the following conditions. The resistance between the rails is R , the rails and the moving rod are identical in cross section A and have the same resistivity \rho . The distance between the rails is l, and the rod moves at constant speed v perpendicular to the uniform field B. At time zero, the moving rod is next to the resistance R. https://seo-videos.collegephysicsanswers.com/ch23/pe23/ed1ch23pe23.mp4 165 38 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-when-b-l-and-v-are-not-mutually-perpendicular-motional-emf-given-emf Prove that when B, l, and v are not mutually perpendicular, motional… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe21/thumbs-ed1ch23pe21-00002.png Prove that when B, l, and v are not mutually perpendicular, motional EMF is given by EMF = Blv\sin(\theta). If v is perpendicular to B, then \theta is the angle between l and B. If l is perpendicular to B, then \theta is the angle between v and B. https://seo-videos.collegephysicsanswers.com/ch23/pe21/ed1ch23pe21.mp4 421 52 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tethered-satellite-discussed-module-producing-500-kv-and-current-100-flows-what The Tethered Satellite discussed in this module is producing 5.00 kV,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe25/thumbs-ed1ch23pe25-00002.png The Tethered Satellite discussed in this module is producing 5.00 kV, and a current of 10.0 A flows. (a) What magnetic drag force does this produce if the system is moving at 7.80 km/s? (b) How much kinetic energy is removed from the system in 1.00 h, neglecting any change in altitude or velocity during that time? (c) What is the change in velocity if the mass of the system is 100,000 kg? (d) Discuss the long term consequences (say, a week-long mission) on the space shuttle’s orbit, noting what effect a decrease in velocity has and assessing the magnitude of the effect. https://seo-videos.collegephysicsanswers.com/ch23/pe25/ed1ch23pe25.mp4 511 38 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-mild-winter-climate-heat-pump-has-heat-transfer-environment-500circtextrmc In a very mild winter climate, a heat pump has heat transfer from an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe40/thumbs-ed1ch15pe40-00002.png In a very mild winter climate, a heat pump has heat transfer from an environment at 5.00° C to one at 35.0° C . What is the best possible coefficient of performance for these temperatures? Explicitly show how you follow the steps in the Problem-Solving Strategies for Thermodynamics. https://seo-videos.collegephysicsanswers.com/ch15/pe40/ed1ch15pe40.mp4 96 34 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-coefficients-performance-refrigerators-and-heat-pumps-are-related Show that the coefficients of performance of refrigerators and heat… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe46/thumbs-ed1ch15pe46-00002.png Show that the coefficients of performance of refrigerators and heat pumps are related by COP _ ref = COP _ hp -1. Start with the definitions of the COP 's and the conservation of energy relationship between Q_ h , Q_ c , and W. https://seo-videos.collegephysicsanswers.com/ch15/pe46/ed1ch15pe46.mp4 80 12 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-peak-emf-generated-0250-m-radius-500-turn-coil-rotated-one-fourth What is the peak emf generated by a 0.250 m radius, 500-turn coil is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe31/thumbs-ed1ch23pe31-00002.png What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field of strength 0.425 T. (This is 60 rev/s.) https://seo-videos.collegephysicsanswers.com/ch23/pe31/ed1ch23pe31.mp4 131 118 3.7 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-turbines-coal-powered-power-plant-were-upgraded-resulting-improvement Assume that the turbines at a coal-powered power plant were upgraded,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe26/thumbs-ed1ch15pe26-00002.png Assume that the turbines at a coal-powered power plant were upgraded, resulting in an improvement in efficiency of 3.32%. Assume that prior to the upgrade the power station had an efficiency of 36% and that the heat transfer into the engine in one day is still the same at 2.50 x 10^{14} J . (a) How much more electrical energy is produced due to the upgrade? (b) How much less heat transfer occurs to the environment due to the upgrade? https://seo-videos.collegephysicsanswers.com/ch15/pe26/ed1ch15pe26.mp4 225 38 3 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-if-coil-rotates-angular-velocity-omega-period-its-ac-output-dfrac2-piomega Show that if a coil rotates at an angular velocity \omega , the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe35/thumbs-ed1ch23pe35-00002.png Show that if a coil rotates at an angular velocity \omega , the period of its AC output is \dfrac{2 \pi}{\omega}. https://seo-videos.collegephysicsanswers.com/ch23/pe35/ed1ch23pe35.mp4 194 23 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-refers-bicycle-generator-which-has-100-300-cm-rectangular-coil-and-50 This problem refers a the bicycle generator which has a 1.00 by 3.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe33/thumbs-ed1ch23pe33-00002.png This problem refers a the bicycle generator which has a 1.00 by 3.00 cm rectangular coil and 50 turns. It is driven by a 1.60 cm diameter wheel that rolls on the outside rim of the bicycle tire. (a) What is the velocity of the bicycle if the generator’s angular velocity is 1875 rad/s? (b) What is the maximum emf of the generator when the bicycle moves at 10.0 m/s, noting that it was 18.0 V under the original conditions? (c) If the sophisticated generator can vary its own magnetic field, what field strength will it need at 5.00 m/s to produce a 9.00 V maximum emf? https://seo-videos.collegephysicsanswers.com/ch23/pe33/ed1ch23pe33.mp4 376 62 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-motor-connected-120-v-source-draws-100-when-it-first-starts-what-its Suppose a motor connected to a 120 V source draws 10.0 A when it… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe39/thumbs-ed1ch23pe39-00002.png Suppose a motor connected to a 120 V source draws 10.0 A when it first starts. (a) What is its resistance? (b) What current does it draw at its normal operating speed when it develops a 100 V back emf? https://seo-videos.collegephysicsanswers.com/ch23/pe39/ed1ch23pe39.mp4 54 48 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-back-emf-120-v-motor-draws-800-its-normal-speed-and-200-when-first-starting What is the back emf of a 120 V motor that draws 8.00 A at its normal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe41/thumbs-ed1ch23pe41-00002.png What is the back emf of a 120 V motor that draws 8.00 A at its normal speed and 20.0 A when first starting? https://seo-videos.collegephysicsanswers.com/ch23/pe41/ed1ch23pe41.mp4 101 34 4 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/motor-toy-car-powered-four-batteries-series-which-produce-total-emf-600-v-motor The motor in a toy car is powered by four batteries in series, which… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe43/thumbs-ed1ch23pe43-00002.png The motor in a toy car is powered by four batteries in series, which produce a total emf of 6.00 V. The motor draws 3.00 A and develops a 4.50 V back emf at normal speed. Each battery has a 0.100 \Omega internal resistance. What is the resistance of the motor? https://seo-videos.collegephysicsanswers.com/ch23/pe43/ed1ch23pe43.mp4 105 45 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ideal-heat-pump-being-considered-use-heating-environment-temperature An ideal heat pump is being considered for use in heating an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe44/thumbs-ed1ch15pe44-00002.png An ideal heat pump is being considered for use in heating an environment with a temperature of 22.0° C . What is the cold reservoir temperature if the pump is to have a coefficient of performance of 12.0? https://seo-videos.collegephysicsanswers.com/ch15/pe44/ed1ch15pe44.mp4 178 53 5 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-emf-coil-rotating-magnetic-field-zero-t-0-and-increases-its-first-peak-t-0100 (a) If the emf of a coil rotating in a magnetic field is zero at t =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe37/thumbs-ed1ch23pe37-00002.png (a) If the emf of a coil rotating in a magnetic field is zero at t = 0, and increases to its first peak at t = 0.100 ms , what is the angular velocity of the coil? (b) At what time will its next maximum occur? (c) What is the period of the output? (d) When is the output first one-fourth of its maximum? (e) When is it next one-fourth of its maximum? https://seo-videos.collegephysicsanswers.com/ch23/pe37/ed1ch23pe37.mp4 391 40 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/practical-steam-engines-utilize-450circtextrmc-steam-which-later-exhausted Practical steam engines utilize 450° C steam, which is later… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe32/thumbs-ed1ch15pe32-00002.png Practical steam engines utilize 450° C steam, which is later exhausted at 270° C . (a) What is the maximum efficiency that such a heat engine can have? (b) Since 270° C steam is still quite hot, a second steam engine is sometimes operated using the exhaust of the first. What is the maximum efficiency of the second engine if its exhaust has a temperature of 150° C ? (c) What is the overall efficiency of the two engines? (d) Show that this is the same efficiency as a single Carnot engine operating between 450° C and 150° C . Explicitly show how you follow the steps in the Problem-Solving Strategies for Thermodynamics. https://seo-videos.collegephysicsanswers.com/ch15/pe32/ed1ch15pe32.mp4 398 50 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-gasoline-engine-has-efficiency-300-what-would-hot-reservoir-temperature A certain gasoline engine has an efficiency of 30.0%. What would the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe28/thumbs-ed1ch15pe28-00002.png A certain gasoline engine has an efficiency of 30.0%. What would the hot reservoir temperature be for a Carnot engine having that efficiency, if it operates with a cold reservoir temperature of 200° C ? https://seo-videos.collegephysicsanswers.com/ch15/pe28/ed1ch15pe28.mp4 105 105 3 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/american-traveler-new-zealand-carries-transformer-convert-new-zealands-standard An American traveler in New Zealand carries a transformer to convert… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe45/thumbs-ed1ch23pe45-00002.png An American traveler in New Zealand carries a transformer to convert New Zealand’s standard 240 V to 120 V so that she can use some small appliances on her trip. (a) What is the ratio of turns in the primary and secondary coils of her transformer? (b) What is the ratio of input to output current? (c) How could a New Zealander traveling in the United States use this same transformer to power her 240 V appliances from 120 V? https://seo-videos.collegephysicsanswers.com/ch23/pe45/ed1ch23pe45.mp4 123 144 4.3 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-ideal-refrigerator-cools-environment-200circtextrmc-and-has Suppose you have an ideal refrigerator that cools an environment at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe38/thumbs-ed1ch15pe38-00002.png Suppose you have an ideal refrigerator that cools an environment at -20.0° C and has heat transfer to another environment at 50.0° C . What is its coefficient of performance? https://seo-videos.collegephysicsanswers.com/ch15/pe38/ed1ch15pe38.mp4 263 78 2020-05-27 yes 2020-05-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-percent-time-will-you-get-something-range-60-heads-and-40-tails-through-40 What percent of the time will you get something in the range from 60… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe58/thumbs-ed1ch15pe58-00002.png What percent of the time will you get something in the range from 60 heads and 40 tails through 40 heads and 60 tails when tossing 100 coins? The total number of microstates in that range is 1.22 x 10^{30} . (Consult Table 15.4.) https://seo-videos.collegephysicsanswers.com/ch15/pe58/ed1ch15pe58.mp4 33 10 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-would-ship-exercise-357-have-travel-order-have-velocity-straight (a) In what direction would the ship in Exercise 3.57 have to travel… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe59/thumbs-ed1ch03pe59-00002.png (a) In what direction would the ship in Exercise 3.57 have to travel in order to have a velocity straight north relative to the Earth, assuming its speed relative to the water remains 7.00 m/s? (b) What would its speed be relative to the Earth? https://seo-videos.collegephysicsanswers.com/ch03/pe59/ed1ch03pe59.mp4 324 104 3 2018-02-21 yes 2018-02-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-increase-entropy-100-kg-liquid-nitrogen-starts-its-boiling-temperature Find the increase in entropy of 1.00 kg of liquid nitrogen that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe54/thumbs-ed1ch15pe54-00002.png Find the increase in entropy of 1.00 kg of liquid nitrogen that starts at its boiling temperature, boils, and warms to 20.0° C at constant pressure. https://seo-videos.collegephysicsanswers.com/ch15/pe54/ed1ch15pe54.mp4 150 62 5 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-toss-10-coins-what-percent-time-will-you-get-three-most-likely (a) If you toss 10 coins, what percent of the time will you get the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe62/thumbs-ed1ch15pe62-00002.png (a) If you toss 10 coins, what percent of the time will you get the three most likely macrostates (6 heads and 4 tails, 5 heads and 5 tails, 4 heads and 6 tails)? (b) You can realistically toss 10 coins and count the number of heads and tails about twice a minute. At that rate, how long will it take on average to get either 10 heads and 0 tails or 0 heads and 10 tails? https://seo-videos.collegephysicsanswers.com/ch15/pe62/ed1ch15pe62.mp4 125 16 5 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/reaching-equilibrium-how-much-heat-transfer-occurs-100-kg-water-400circtextrmc (a) In reaching equilibrium, how much heat transfer occurs from 1.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe52/thumbs-ed1ch15pe52-00002.png (a) In reaching equilibrium, how much heat transfer occurs from 1.00 kg of water at 40.0° C when it is placed in contact with 1.00 kg of 20.0° C water in reaching equilibrium? (b) What is the change in entropy due to this heat transfer? (c) How much work is made unavailable, taking the lowest temperature to be 20.0° C ? Explicitly show how you follow the steps in the Problem-Solving Strategies for Entropy. https://seo-videos.collegephysicsanswers.com/ch15/pe52/ed1ch15pe52.mp4 272 58 3 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-power-output-previous-problem-1000-mw-and-line-resistance-200-omega-what-were If the power output in the previous problem is 1000 MW and line… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe51/thumbs-ed1ch23pe51-00002.png If the power output in the previous problem is 1000 MW and line resistance is 2.00 \Omega, what were the old and new line losses? https://seo-videos.collegephysicsanswers.com/ch23/pe51/ed1ch23pe51.mp4 115 38 1 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/air-conditioner-1265-mj-heat-transfer-occurs-cold-environment-100-h-what-mass In an air conditioner, 12.65 MJ of heat transfer occurs from a cold… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe64/thumbs-ed1ch15pe64-00002.png In an air conditioner, 12.65 MJ of heat transfer occurs from a cold environment in 1.00 h. (a) What mass of ice melting would involve the same heat transfer? (b) How many hours of operation would be equivalent to melting 900 kg of ice? (c) If ice costs 20 cents per kg, do you think the air conditioner could be operated more cheaply than by simply using ice? Describe in detail how you evaluate the relative costs. https://seo-videos.collegephysicsanswers.com/ch15/pe64/ed1ch15pe64.mp4 226 10 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/disk-between-vertebrae-spine-subjected-shearing-force-600-n-find-its-shear A disk between vertebrae in the spine is subjected to a shearing… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe38/thumbs-ed1ch05pe38-00002.png A disk between vertebrae in the spine is subjected to a shearing force of 600 N. Find its shear deformation, taking it to have the shear modulus of 1 x 10^{9} N/m ^2. The disk is equivalent to a solid cylinder 0.700 cm high and 4.00 cm in diameter. https://seo-videos.collegephysicsanswers.com/ch05/pe38/ed1ch05pe38.mp4 87 255 4.3 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-heat-transfer-occurs-200-kg-900circtextrmc-water-placed-contact-200-kg (a) How much heat transfer occurs from 20.0 kg of 90.0° C water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe56/thumbs-ed1ch15pe56-00002.png (a) How much heat transfer occurs from 20.0 kg of 90.0° C water placed in contact with 20.0 kg of 10.0° C water, producing a final temperature of 50.0° C ? (b) How much work could a Carnot engine do with this heat transfer, assuming it operates between two reservoirs at constant temperatures of 90.0° C and 10.0° C ? (c) What increase in entropy is produced by mixing 20.0 kg of 90.0° C water with 20.0 kg of 10.0° C water? (d) Calculate the amount of work made unavailable by this mixing using a low temperature of 10.0° C , and compare it with the work done by the Carnot engine. Explicitly show how you follow the steps in the Problem-Solving Strategies for Entropy. (e) Discuss how everyday processes make increasingly more energy unavailable to do work, as implied by this problem. https://seo-videos.collegephysicsanswers.com/ch15/pe56/ed1ch15pe56.mp4 339 40 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/400-current-through-750-mh-inductor-switched-833-ms-what-emf-induced-opposing The 4.00 A current through a 7.50 mH inductor is switched off in 8.33… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe57/thumbs-ed1ch23pe57-00002.png The 4.00 A current through a 7.50 mH inductor is switched off in 8.33 ms. What is the emf induced opposing this? https://seo-videos.collegephysicsanswers.com/ch23/pe57/ed1ch23pe57.mp4 35 66 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-160times-105textrm-j-heat-transfer-occurs-meat-pie-initially-200circtextrmc When 1.60 x 10^{5} J of heat transfer occurs into a meat pie… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe50/thumbs-ed1ch15pe50-00002.png When 1.60 x 10^{5} J of heat transfer occurs into a meat pie initially at 20.0° C , its entropy increases by 480 J/K. What is its final temperature? https://seo-videos.collegephysicsanswers.com/ch15/pe50/ed1ch15pe50.mp4 123 28 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-change-entropy-if-you-start-100-coins-45-heads-and-55-tails-macrostate-toss (a) What is the change in entropy if you start with 100 coins in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe60/thumbs-ed1ch15pe60-00002.png (a) What is the change in entropy if you start with 100 coins in the 45 heads and 55 tails macrostate, toss them, and get 51 heads and 49 tails? (b) What if you get 75 heads and 25 tails? (c) How much more likely is 51 heads and 49 tails than 75 heads and 25 tails? (d) Does either outcome violate the second law of thermodynamics? https://seo-videos.collegephysicsanswers.com/ch15/pe60/ed1ch15pe60.mp4 205 29 5 2020-05-28 yes 2020-05-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/starting-emf2-m-dfracdelta-i1delta-t-show-units-inductance-are-dfractextrmv-cdot Starting with EMF_2 = -M \dfrac{\Delta I_1}{\Delta t}, show that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe59/thumbs-ed1ch23pe59-00002.png Starting with EMF_2 = -M \dfrac{\Delta I_1}{\Delta t}, show that the units of inductance are \dfrac{ V \cdot s }{ A } = \Omega \cdot s https://seo-videos.collegephysicsanswers.com/ch23/pe59/ed1ch23pe59.mp4 82 13 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-research-solenoid-has-self-inductance-250-h-what-induced-emf-opposes A large research solenoid has a self-inductance of 25.0 H. (a) What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe61/thumbs-ed1ch23pe61-00002.png A large research solenoid has a self-inductance of 25.0 H. (a) What induced emf opposes shutting it off when 100 A of current through it is switched off in 80.0 ms? (b) How much energy is stored in the inductor at full current? (c) At what rate in watts must energy be dissipated to switch the current off in 80.0 ms? (d) In view of the answer to the last part, is it surprising that shutting it down this quickly is difficult? https://seo-videos.collegephysicsanswers.com/ch23/pe61/ed1ch23pe61.mp4 97 65 4.7 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-200-current-through-inductor-turned-150-ms-800-v-emf-induced-opposing When the 20.0 A current through an inductor is turned off in 1.50 ms,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe65/thumbs-ed1ch23pe65-00002.png When the 20.0 A current through an inductor is turned off in 1.50 ms, an 800 V emf is induced, opposing the change. What is the value of the self-inductance? https://seo-videos.collegephysicsanswers.com/ch23/pe65/ed1ch23pe65.mp4 57 22 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-water-freezes-its-volume-increases-905-dfracdelta-vvo-905times-10-2-what (a) When water freezes, its volume increases by 9.05% (that is,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe42/thumbs-ed1ch05pe42-00002.png (a) When water freezes, its volume increases by 9.05% (that is, \dfrac{\Delta V}{V_o} = 9.05= x 10^{-2}). What force per unit area is water capable of exerting on a container when it freezes? (It is acceptable to use the bulk modulus of water in this problem.) (b) Is it surprising that such forces can fracture engine blocks, boulders, and the like? https://seo-videos.collegephysicsanswers.com/ch05/pe42/ed1ch05pe42.mp4 97 263 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/precision-laboratory-resistor-made-coil-wire-150-cm-diameter-and-400-cm-long-and A precision laboratory resistor is made of a coil of wire 1.50 cm in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe63/thumbs-ed1ch23pe63-00002.png A precision laboratory resistor is made of a coil of wire 1.50 cm in diameter and 4.00 cm long, and it has 500 turns. (a) What is its self-inductance? (b) What average emf is induced if the 12.0 A current through it is turned on in 5.00 ms (one-fourth of a cycle for 50 Hz AC)? (c) What is its inductance if it is shortened to half its length and counter- wound (two layers of 250 turns in opposite directions)? https://seo-videos.collegephysicsanswers.com/ch23/pe63/ed1ch23pe63.mp4 133 60 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-large-superconducting-solenoid-such-one-used-mri-scans-stores-100-mj-energy A very large, superconducting solenoid such as one used in MRI scans,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe67/thumbs-ed1ch23pe67-00002.png A very large, superconducting solenoid such as one used in MRI scans, stores 1.00 MJ of energy in its magnetic field when 100 A flows. (a) Find its self-inductance. (b) If the coils “go normal,” they gain resistance and start to dissipate thermal energy. What temperature increase is produced if all the stored energy goes into heating the 1000 kg magnet, given its average specific heat is 200 J/kg \cdot C °? https://seo-videos.collegephysicsanswers.com/ch23/pe67/ed1ch23pe67.mp4 85 16 5 2018-10-17 yes 2018-10-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-superconducting-magnet-used-magnetic-resonance-imaging-has-500-h A large superconducting magnet, used for magnetic resonance imaging,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe71/thumbs-ed1ch23pe71-00002.png A large superconducting magnet, used for magnetic resonance imaging, has a 50.0 H inductance. If you want current through it to be adjustable with a 1.00 s characteristic time constant, what is the minimum resistance of system? https://seo-videos.collegephysicsanswers.com/ch23/pe71/ed1ch23pe71.mp4 33 16 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-supply-inductors-ranging-100-nh-100-h-and-resistors-ranging Suppose you have a supply of inductors ranging from 1.00 nH to 10.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe73/thumbs-ed1ch23pe73-00002.png Suppose you have a supply of inductors ranging from 1.00 nH to 10.0 H, and resistors ranging from 0.100 \Omega to 1.00 M \Omega. What is the range of characteristic RL time constants you can produce by connecting a single resistor to a single inductor? https://seo-videos.collegephysicsanswers.com/ch23/pe73/ed1ch23pe73.mp4 62 41 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-percentage-final-current-io-flows-through-inductor-l-series-resistor-r What percentage of the final current I_o flows through an inductor L… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe75/thumbs-ed1ch23pe75-00002.png What percentage of the final current I_o flows through an inductor L in series with a resistor R, three time constants after the circuit is completed? https://seo-videos.collegephysicsanswers.com/ch23/pe75/ed1ch23pe75.mp4 58 37 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-capacitance-should-be-used-produce-200-momega-reactance-600-hz What capacitance should be used to produce a 2.00 M \Omega reactance… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe81/thumbs-ed1ch23pe81-00002.png What capacitance should be used to produce a 2.00 M \Omega reactance at 60.0 Hz? https://seo-videos.collegephysicsanswers.com/ch23/pe81/ed1ch23pe81.mp4 39 22 4.3 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-current-through-0500-h-inductor-connected-600-hz-480-v-ac-source-b-what (a) Find the current through a 0.500 H inductor connected to a 60.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe83/thumbs-ed1ch23pe83-00002.png (a) Find the current through a 0.500 H inductor connected to a 60.0 Hz, 480 V AC source. (b) What would the current be at 100 kHz? https://seo-videos.collegephysicsanswers.com/ch23/pe83/ed1ch23pe83.mp4 60 26 3.5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-value-given-kinetic-energy-aircraft-carrier-table-71-you-will-need-look Confirm the value given for the kinetic energy of an aircraft carrier… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe11/thumbs-ed1ch07pe11-00002.png Confirm the value given for the kinetic energy of an aircraft carrier in Table 7.1. You will need to look up the definition of a nautical mile (1 knot = 1 nautical mile/h). https://seo-videos.collegephysicsanswers.com/ch07/pe11/ed1ch07pe11.mp4 156 140 4 2018-03-16 yes 2018-03-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-khz-160-v-source-connected-inductor-produces-200-current-what-inductance A 20.0 kHz, 16.0 V source connected to an inductor produces a 2.00 A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe85/thumbs-ed1ch23pe85-00002.png A 20.0 kHz, 16.0 V source connected to an inductor produces a 2.00 A current. What is the inductance? https://seo-videos.collegephysicsanswers.com/ch23/pe85/ed1ch23pe85.mp4 41 27 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-exact-exponential-treatment-find-how-much-time-required-bring-current (a) Use the exact exponential treatment to find how much time is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe77/thumbs-ed1ch23pe77-00002.png (a) Use the exact exponential treatment to find how much time is required to bring the current through an 80.0 mH inductor in series with a 15.0 \Omega resistor to 99.0% of its final value, starting from zero. (b) Compare your answer to the approximate treatment using integral numbers of \tau. (c) Discuss how significant the difference is. https://seo-videos.collegephysicsanswers.com/ch23/pe77/ed1ch23pe77.mp4 238 60 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/inductor-designed-filter-high-frequency-noise-power-supplied-personal-computer (a) An inductor designed to filter high-frequency noise from power… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe87/thumbs-ed1ch23pe87-00002.png (a) An inductor designed to filter high-frequency noise from power supplied to a personal computer is placed in series with the computer. What minimum inductance should it have to produce a 2.00 k \Omega reactance for 15.0 kHz noise? (b) What is its reactance at 60.0 Hz? https://seo-videos.collegephysicsanswers.com/ch23/pe87/ed1ch23pe87.mp4 98 74 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/capacitor-figure-2355b-will-filter-high-frequency-signals-shorting-them The capacitor in Figure 23.55(b) will filter high-frequency signals… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe89/thumbs-ed1ch23pe89-00002.png The capacitor in Figure 23.55(b) will filter high-frequency signals by shorting them to earth/ground. (a) What capacitance is needed to produce a reactance of 10.0 m \Omega for a 5.00 kHz signal? (b) What would its reactance be at 3.00 Hz? (c) Discuss the implications of your answers to (a) and (b). https://seo-videos.collegephysicsanswers.com/ch23/pe89/ed1ch23pe89.mp4 164 20 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resonant-frequency-0500-mh-inductor-connected-40-mu-textrmf-capacitor What is the resonant frequency of a 0.500 mH inductor connected to a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe95/thumbs-ed1ch23pe95-00002.png What is the resonant frequency of a 0.500 mH inductor connected to a 40 \mu F capacitor? https://seo-videos.collegephysicsanswers.com/ch23/pe95/ed1ch23pe95.mp4 19 40 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-supply-inductors-ranging-100-nh-100-h-and-capacitors-ranging Suppose you have a supply of inductors ranging from 1.00 nH to 10.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe97/thumbs-ed1ch23pe97-00002.png Suppose you have a supply of inductors ranging from 1.00 nH to 10.0 H, and capacitors ranging from 1.00 pF to 0.100 F. What is the range of resonant frequencies that can be achieved from combinations of a single inductor and a single capacitor? https://seo-videos.collegephysicsanswers.com/ch23/pe97/ed1ch23pe97.mp4 63 24 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-pushes-cardboard-box-across-carpeted-floor-and-afterwards-notices-bottom A student pushes a cardboard box across a carpeted floor and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/ap04/thumbs-ed1ch05ap04-00002.png A student pushes a cardboard box across a carpeted floor and afterwards notices that the bottom of the box feels warm. Explain how interactions between molecules in the cardboard and molecules in the carpet produced this heat. https://seo-videos.collegephysicsanswers.com/ch05/ap04/ed1ch05ap04.mp4 64 14 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-inductance-do-you-need-produce-resonant-frequency-600-hz-when-using-200-mu What inductance do you need to produce a resonant frequency of 60.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe99/thumbs-ed1ch23pe99-00002.png What inductance do you need to produce a resonant frequency of 60.0 Hz, when using a 2.00 \mu F capacitor? https://seo-videos.collegephysicsanswers.com/ch23/pe99/ed1ch23pe99.mp4 51 29 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rc-circuit-consists-400-omega-resistor-and-500-mu-textrmf-capacitor-find-its An RC circuit consists of a 40.0 \Omega resistor and a 5.00 \mu F … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe93/thumbs-ed1ch23pe93-00002.png An RC circuit consists of a 40.0 \Omega resistor and a 5.00 \mu F capacitor. (a) Find its impedance at 60.0 Hz and 10.0 kHz. (b) Compare these values of Z with those found in Example 23.12, in which there was also an inductor. https://seo-videos.collegephysicsanswers.com/ch23/pe93/ed1ch23pe93.mp4 222 45 3.5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rlc-series-circuit-has-250-omega-resistor-100-mu-textrmh-inductor-and-800-mu An RLC series circuit has a 2.50 \Omega resistor, a 100 \mu H … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe101/thumbs-ed1ch23pe101-00002.png An RLC series circuit has a 2.50 \Omega resistor, a 100 \mu H inductor, and an 80.0 \mu F capacitor.(a) Find the circuit’s impedance at 120 Hz. (b) Find the circuit’s impedance at 5.00 kHz. (c) If the voltage source has V_{ rms } = 5.60 V , what is I_{ rms } at each frequency? (d) What is the resonant frequency of the circuit? (e) What is I_{ rms } at resonance? https://seo-videos.collegephysicsanswers.com/ch23/pe101/ed1ch23pe101.mp4 190 113 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ice-hockey-player-moving-800-ms-when-he-hits-puck-toward-goal-speed-puck An ice hockey player is moving at 8.00 m/s when he hits the puck… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe67/thumbs-ed1ch03pe67-00002.png An ice hockey player is moving at 8.00 m/s when he hits the puck toward the goal. The speed of the puck relative to the player is 29.0 m/s. The line between the center of the goal and the player makes a 90.0° angle relative to his path as shown in Figure 3.63. What angle must the puck's velocity make relative to the player (in his frame of reference) to hit the center of the goal? https://seo-videos.collegephysicsanswers.com/ch03/pe67/ed1ch03pe67.mp4 175 143 2018-02-21 yes 2018-02-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/produce-current-coil-and-bar-magnet-you-can-move-coil-not-magnet-move-magnet-not To produce current with a coil and bar magnet you can: (a) move the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap01/thumbs-ed1ch23ap01-00002.png To produce current with a coil and bar magnet you can: (a) move the coil but not the magnet.(b) move the magnet but not the coil.(c) move either the coil or the magnet.(d) It is not possible to produce current. https://seo-videos.collegephysicsanswers.com/ch23/ap01/ed1ch23ap01.mp4 45 8 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/emf-induced-coil-rotating-magnetic-field-will-be-maximum-when-magnetic-flux The emf induced in a coil that is rotating in a magnetic field will… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap03/thumbs-ed1ch23ap03-00002.png The emf induced in a coil that is rotating in a magnetic field will be at a maximum when (a) the magnetic flux is at a maximum.(b) the magnetic flux is at a minimum.(c) the change in magnetic flux is at a maximum.(d) the change in magnetic flux is at a minimum. https://seo-videos.collegephysicsanswers.com/ch23/ap03/ed1ch23ap03.mp4 32 2 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/commercial-airplane-has-air-speed-280-ms-due-east-and-flies-strong-tailwind-it A commercial airplane has an air speed of 280 m/s due east and flies… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe69/thumbs-ed1ch03pe69-00002.png A commercial airplane has an air speed of 280 m/s due east and flies with a strong tailwind. It travels 3000 km in a direction 5° south of east in 1.50 h. (a) What was the velocity of the plane relative to the ground? (b) Calculate the magnitude and direction of the tailwind's velocity. (c) What is unreasonable about both of these velocities? (d) Which premise is unreasonable? https://seo-videos.collegephysicsanswers.com/ch03/pe69/ed1ch03pe69.mp4 446 83 5 2018-02-22 yes 2018-02-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-thrown-angle-45-degrees-above-horizontal-which-following-best-describes A ball is thrown at an angle of 45 degrees above the horizontal.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/ap01/thumbs-ed1ch03ap01-00002.png A ball is thrown at an angle of 45 degrees above the horizontal. Which of the following best describes the acceleration of the ball from the instant after it leaves the thrower's hand until the time it hits the ground?(a) Always in the same direction as the motion, initially positive and gradually dropping to zero by the time it hits the ground(b) Initially positive in the upward direction, then zero at maximum height, then negative from there until it hits the ground(c) Always in the opposite direction as the motion, initially positive and gradually dropping to zero by the time it hits the ground(d) Always in the downward direction with the same constant value https://seo-videos.collegephysicsanswers.com/ch03/ap01/ed1ch03ap01.mp4 40 8 2 2018-02-22 yes 2018-02-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-true-isolation-transformer-it-has-more-primary-turns Which of the following statements is true for an isolation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/ap07/thumbs-ed1ch23ap07-00002.png Which of the following statements is true for an isolation transformer? (a) It has more primary turns than secondary turns.(b) It has fewer primary turns than secondary turns.(c) It has an equal number of primary and secondary turns.(d) It can have more, fewer, or an equal number of primary and secondary turns. https://seo-videos.collegephysicsanswers.com/ch23/ap07/ed1ch23ap07.mp4 17 2 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/height-m-time-sec-0490-01-0882-02-1176-03-1372-04-1470-05-1470-06-1372-07-ball Height (m)Time… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/ap05/thumbs-ed1ch03ap05-00002.png Height (m)Time (sec)0.4900.10.8820.21.1760.31.3720.41.4700.51.4700.61.3720.7 A ball is launched at an angle of 60 degrees above the horizontal, and the vertical position of the ball is recorded at various points in time in the table shown, assuming the ball was at a height of 0 at time t = 0.a. Draw a graph of the ball's vertical velocity versus time. b. Describe the graph of the ball's horizontal velocity.c. Draw a graph of the ball's vertical acceleration versus time. https://seo-videos.collegephysicsanswers.com/ch03/ap05/ed1ch03ap05.mp4 265 25 2018-02-22 yes 2018-02-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rlc-series-circuit-has-200-omega-resistor-and-250-mh-inductor-8000-hz-phase An RLC series circuit has a 200 \Omega resistor and a 25.0 mH… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch23/pe105/thumbs-ed1ch23pe105-00002.png An RLC series circuit has a 200 \Omega resistor and a 25.0 mH inductor. At 8000 Hz, the phase angle is 45.0°. (a) What is the impedance? (b) Find the circuit’s capacitance. (c) If V_{ rms } = 408 V is applied, what is the average power supplied? https://seo-videos.collegephysicsanswers.com/ch23/pe105/ed1ch23pe105.mp4 250 75 5 2018-10-18 yes 2018-10-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-stokes-law-verify-units-viscosity-are-kilograms-meter-second Using Stokes' law, verify that the units for viscosity are kilograms… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe26/thumbs-ed1ch05pe26-00002.png Using Stokes' law, verify that the units for viscosity are kilograms per meter per second. https://seo-videos.collegephysicsanswers.com/ch05/pe26/ed1ch05pe26.mp4 150 118 5 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-effect-wires-hung-poles-we-take-data-example-48-which-tensions-wires To consider the effect of wires hung on poles, we take data from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe40/thumbs-ed1ch05pe40-00002.png To consider the effect of wires hung on poles, we take data from Example 4.8, in which tensions in wires supporting a traffic light were calculated. The left wire made an angle 30.0° below the horizontal with the top of its pole and carried a tension of 108 N. The 12.0 m tall hollow aluminum pole is equivalent in stiffness to a 4.50 cm diameter solid cylinder. (a) How far is it bent to the side? (b) By how much is it compressed? https://seo-videos.collegephysicsanswers.com/ch05/pe40/ed1ch05pe40.mp4 198 91 5 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/2-kg-block-slides-down-ramp-which-incline-25circ-if-frictional-force-486-n-what A 2-kg block slides down a ramp which is at an incline of 25°. If the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/ap02/thumbs-ed1ch05ap02-00002.png A 2-kg block slides down a ramp which is at an incline of 25°. If the frictional force is 4.86 N, what is the coefficient of friction? At what incline will the box slide at a constant velocity? Assume g = 10 m/ ^2. https://seo-videos.collegephysicsanswers.com/ch05/ap02/ed1ch05ap02.mp4 198 36 5 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/stroboscope-set-flash-every-800times-10-5textrm-s-what-frequency-flashes A stroboscope is set to flash every 8.00 x 10^{-5} s . What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe10/thumbs-ed1ch16pe10-00002.png A stroboscope is set to flash every 8.00 x 10^{-5} s . What is the frequency of the flashes? https://seo-videos.collegephysicsanswers.com/ch16/pe10/ed1ch16pe10.mp4 34 92 4.7 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electromagnetic-radiation-having-150-mutextrmm-wavelength-classified-infrared Electromagnetic radiation having a 15.0 \mu m wavelength is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe11/thumbs-ed1ch24pe11-00002.png Electromagnetic radiation having a 15.0 \mu m wavelength is classified as infrared radiation. What is its frequency? https://seo-videos.collegephysicsanswers.com/ch24/pe11/ed1ch24pe11.mp4 29 24 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radar-used-detect-presence-aircraft-receives-pulse-has-reflected-object-6-times A radar used to detect the presence of aircraft receives a pulse that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe13/thumbs-ed1ch24pe13-00002.png A radar used to detect the presence of aircraft receives a pulse that has reflected off an object 6 x 10^{-5} s after it was transmitted. What is the distance from the radar station to the reflecting object? https://seo-videos.collegephysicsanswers.com/ch24/pe13/ed1ch24pe13.mp4 63 137 4.3 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ideal-size-most-efficient-broadcast-antenna-one-end-ground-one-fourth-wavelength (a) The ideal size (most efficient) for a broadcast antenna with one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe21/thumbs-ed1ch24pe21-00002.png (a) The ideal size (most efficient) for a broadcast antenna with one end on the ground is one-fourth the wavelength (\dfrac{\lambda}{4}) of the electromagnetic radiation being sent out. If a new radio station has such an antenna that is 50.0 m high, what frequency does it broadcast most efficiently? Is this in the AM or FM band? (b) Discuss the analogy of the fundamental resonant mode of an air column closed at one end to the resonance of currents on an antenna that is one- fourth their wavelength. https://seo-videos.collegephysicsanswers.com/ch24/pe21/ed1ch24pe21.mp4 191 46 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/conversations-astronauts-lunar-walks-had-echo-was-used-estimate-distance-moon Conversations with astronauts on lunar walks had an echo that was… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe25/thumbs-ed1ch24pe25-00002.png Conversations with astronauts on lunar walks had an echo that was used to estimate the distance to the Moon. The sound spoken by the person on Earth was transformed into a radio signal sent to the Moon, and transformed back into sound on a speaker inside the astronaut’s space suit. This sound was picked up by the microphone in the space suit (intended for the astronaut’s voice) and sent back to Earth as a radio echo of sorts. If the round-trip time was 2.60 s, what was the approximate distance to the Moon, neglecting any delays in the electronics? https://seo-videos.collegephysicsanswers.com/ch24/pe25/ed1ch24pe25.mp4 76 52 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequency-193-nm-ultraviolet-radiation-used-laser-eye-surgery-b-assuming (a) What is the frequency of the 193-nm ultraviolet radiation used in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe23/thumbs-ed1ch24pe23-00002.png (a) What is the frequency of the 193-nm ultraviolet radiation used in laser eye surgery? (b) Assuming the accuracy with which this EM radiation can ablate the cornea is inversely proportional to wavelength, how much more accurate can this UV be than the shortest visible wavelength of light? https://seo-videos.collegephysicsanswers.com/ch24/pe23/ed1ch24pe23.mp4 222 166 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/radar-used-determine-distances-various-objects-measuring-round-trip-time-echo Radar is used to determine distances to various objects by measuring… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe27/thumbs-ed1ch24pe27-00002.png Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. (a) How far away is the planet Venus if the echo time is 1000 s? (b) What is the echo time for a car 75.0 m from a Highway Police radar unit? (c) How accurately (in nanoseconds) must you be able to measure the echo time to an airplane 12.0 km away to determine its distance within 10.0 m? https://seo-videos.collegephysicsanswers.com/ch24/pe27/ed1ch24pe27.mp4 173 95 4.7 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-intensity-electromagnetic-wave-having-peak-magnetic-field-strength-400 Find the intensity of an electromagnetic wave having a peak magnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe31/thumbs-ed1ch24pe31-00002.png Find the intensity of an electromagnetic wave having a peak magnetic field strength of 4.00 x 10^{-9} T https://seo-videos.collegephysicsanswers.com/ch24/pe31/ed1ch24pe31.mp4 32 96 4.5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-rate-watts-which-heat-transfer-through-radiation-occurs-almost (a) Calculate the rate in watts at which heat transfer through… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe29/thumbs-ed1ch24pe29-00002.png (a) Calculate the rate in watts at which heat transfer through radiation occurs (almost entirely in the infrared) from 1.0 m ^2 of the Earth’s surface at night. Assume the emissivity is 0.90, the temperature of the Earth is 15° C , and that of outer space is 2.7 K. (b) Compare the intensity of this radiation with that coming to the Earth from the Sun during the day, which averages about 800 W/m ^2, only half of which is absorbed. (c) What is the maximum magnetic field strength in the outgoing radiation, assuming it is a continuous wave? https://seo-videos.collegephysicsanswers.com/ch24/pe29/ed1ch24pe29.mp4 190 36 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-spring-constant-simple-harmonic-oscillator-doubled-what-factor-will-mass If the spring constant of a simple harmonic oscillator is doubled, by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe14/thumbs-ed1ch16pe14-00002.png If the spring constant of a simple harmonic oscillator is doubled, by what factor will the mass of the system need to change in order for the frequency of the motion to remain the same? https://seo-videos.collegephysicsanswers.com/ch16/pe14/ed1ch16pe14.mp4 115 246 5 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-leeway-both-percentage-and-mass-would-you-have-selection-mass-object By how much leeway (both percentage and mass) would you have in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe16/thumbs-ed1ch16pe16-00002.png By how much leeway (both percentage and mass) would you have in the selection of the mass of the object in the previous problem if you did not wish the new period to be greater than 2.01 s or less than 1.99 s? https://seo-videos.collegephysicsanswers.com/ch16/pe16/ed1ch16pe16.mp4 283 74 4.5 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-continuous-sinusoidal-electromagnetic-wave-peak-intensity-twice-average Show that for a continuous sinusoidal electromagnetic wave, the peak… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe37/thumbs-ed1ch24pe37-00002.png Show that for a continuous sinusoidal electromagnetic wave, the peak intensity is twice the average intensity (I_o = 2I_{ ave }, using either the fact that E_o = \sqrt{2}E_{ rms }, or B_o = \sqrt{2}B_{ rms }, where "rms" means average (actually root mean square, a type of average). https://seo-videos.collegephysicsanswers.com/ch24/pe37/ed1ch24pe37.mp4 105 31 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diver-diving-board-undergoing-simple-harmonic-motion-her-mass-550-kg-and-period A diver on a diving board is undergoing simple harmonic motion. Her… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe18/thumbs-ed1ch16pe18-00002.png A diver on a diving board is undergoing simple harmonic motion. Her mass is 55.0 kg and the period of her motion is 0.800 s. The next diver is a male whose period of simple harmonic oscillation is 1.05 s. What is his mass if the mass of the board is negligible? https://seo-videos.collegephysicsanswers.com/ch16/pe18/ed1ch16pe18.mp4 122 384 4 2020-06-03 yes 2020-06-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lc-circuit-500-pf-capacitor-oscillates-such-manner-radiate-wavelength-330-m-what An LC circuit with a 5.00-pF capacitor oscillates in such a manner as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe39/thumbs-ed1ch24pe39-00002.png An LC circuit with a 5.00-pF capacitor oscillates in such a manner as to radiate at a wavelength of 3.30 m. (a) What is the resonant frequency? (b) What inductance is in series with the capacitor? https://seo-videos.collegephysicsanswers.com/ch24/pe39/ed1ch24pe39.mp4 94 64 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/police-radar-determines-speed-motor-vehicles-using-same-doppler-shift-technique Police radar determines the speed of motor vehicles using the same… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe41/thumbs-ed1ch24pe41-00002.png Police radar determines the speed of motor vehicles using the same Doppler-shift technique employed for ultrasound in medical diagnostics. Beats are produced by mixing the double Doppler-shifted echo with the original frequency. If 1.50 x 10^9 Hz microwaves are used and a beat frequency of 150 Hz is produced, what is the speed of the vehicle? (Assume the same Doppler-shift formulas are valid with the speed of sound replaced by the speed of light.) https://seo-videos.collegephysicsanswers.com/ch24/pe41/ed1ch24pe41.mp4 394 48 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/its-highest-power-setting-microwave-oven-increases-temperature-0400-kg-spaghetti On its highest power setting, a microwave oven increases the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe43/thumbs-ed1ch24pe43-00002.png On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by 45.0 C ° in 120 s. (a) What was the rate of power absorption by the spaghetti, given that its specific heat is 3.76 x 10^3 J/kg \cdot C °? (b) Find the average intensity of the microwaves, given that they are absorbed over a circular area 20.0 cm in diameter. (c) What is the peak electric field strength of the microwave? (d) What is its peak magnetic field strength? https://seo-videos.collegephysicsanswers.com/ch24/pe43/ed1ch24pe43.mp4 209 50 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/researcher-measures-wavelength-120-ghz-electromagnetic-wave-be-0500-m-calculate A researcher measures the wavelength of a 1.20-GHz electromagnetic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe47/thumbs-ed1ch24pe47-00002.png A researcher measures the wavelength of a 1.20-GHz electromagnetic wave to be 0.500 m. (a) Calculate the speed at which this wave propagates. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch24/pe47/ed1ch24pe47.mp4 45 123 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200-turn-flat-coil-wire-300-cm-diameter-acts-antenna-fm-radio-frequency-100-mhz A 200-turn flat coil of wire 30.0 cm in diameter acts as an antenna… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe45/thumbs-ed1ch24pe45-00002.png A 200-turn flat coil of wire 30.0 cm in diameter acts as an antenna for FM radio at a frequency of 100 MHz. The magnetic field of the incoming electromagnetic wave is perpendicular to the coil and has a maximum strength of 1.00 x 10^{-12} T . (a) What power is incident on the coil? (b) What average emf is induced in the coil over one-fourth of a cycle? (c) If the radio receiver has an inductance of 2.50 \mu H , what capacitance must it have to resonate at 100 MHz? https://seo-videos.collegephysicsanswers.com/ch24/pe45/ed1ch24pe45.mp4 357 54 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lc-circuit-containing-200-h-inductor-oscillates-such-frequency-it-radiates-100-m An LC circuit containing a 2.00-H inductor oscillates at such a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/pe49/thumbs-ed1ch24pe49-00002.png An LC circuit containing a 2.00-H inductor oscillates at such a frequency that it radiates at a 1.00-m wavelength. (a) What is the capacitance of the circuit? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch24/pe49/ed1ch24pe49.mp4 165 9 5 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wave-travelling-through-medium-until-it-hits-end-medium-and-there-nothing-vacuum A wave is travelling through a medium until it hits the end of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch24/ap03/thumbs-ed1ch24ap03-00002.png A wave is travelling through a medium until it hits the end of the medium and there is nothing but vacuum beyonWhat happens to a mechanical wave? Electromagnetic wave? (a) reflects backward, continues on(b) reflects backward, reflects backward(c) continues on, continues on(d) stops, continues on https://seo-videos.collegephysicsanswers.com/ch24/ap03/ed1ch24ap03.mp4 122 2 2018-10-24 yes 2018-10-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-light-distant-object-reflects-concave-mirror-and-comes-focus-some-distance When light from a distant object reflects off of a concave mirror and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap01/thumbs-ed1ch25ap01-00002.png When light from a distant object reflects off of a concave mirror and comes to a focus some distance in front of the mirror, we model light as a \_\_\_\_\_ to explain and predict the behavior of light and the formation of an image. (a) wave(b) particle(c) ray(d) all of the above https://seo-videos.collegephysicsanswers.com/ch25/ap01/ed1ch25ap01.mp4 25 2 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/object-2-meters-front-flat-mirror-ray-1-object-travels-direction-toward-mirror An object is 2 meters in front of a flat mirror. Ray 1 from the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap03/thumbs-ed1ch25ap03-00002.png An object is 2 meters in front of a flat mirror. Ray 1 from the object travels in a direction toward the mirror and normal to the mirror’s surfacRay 2 from the object travels at an angle of 5° from the direction of ray 1, and it also reflects off the mirror’s surfacAt what distance behind the mirror do these two reflected rays appear to converge to form an image? (a) 0.2 m(b) 0.5 m(c) 2 m(d) 4 m https://seo-videos.collegephysicsanswers.com/ch25/ap03/ed1ch25ap03.mp4 146 8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-2557-two-different-potential-paths-point-point-b-are-shown Referring to Figure 25.57: two different potential paths from point A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap07/thumbs-ed1ch25ap07-00002.png Referring to Figure 25.57: two different potential paths from point A to point B are shown. Point A is in the air, and point B is in water. For which of these paths (upper or lower) would light travel from point A to point B faster? Which of the paths more accurately represents how a light ray would travel from point A to point B? Explain. https://seo-videos.collegephysicsanswers.com/ch25/ap07/ed1ch25ap07.mp4 93 4 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/laser-fired-submarine-beneath-surface-lake-n-133-laser-emerges-lake-air-angle A laser is fired from a submarine beneath the surface of a lake (n =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap11/thumbs-ed1ch25ap11-00002.png A laser is fired from a submarine beneath the surface of a lake (n = 1.33). The laser emerges from the lake into air with an angle of refraction of 67°. How fast is the light moving through the water? What is the angle of incidence of the laser light when it crosses the boundary between the lake and the air? https://seo-videos.collegephysicsanswers.com/ch25/ap11/ed1ch25ap11.mp4 98 4 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/students-lab-group-are-given-plastic-cube-hollow-cube-shaped-space-middle-fills Students in a lab group are given a plastic cube with a hollow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap09/thumbs-ed1ch25ap09-00002.png Students in a lab group are given a plastic cube with a hollow cube-shaped space in the middle that fills about half the volume of the cube. The index of refraction of the plastic is known. The hollow space is filled with a gas, and the students are asked to collect the data needed to find the index of refraction of the gas. What information would you need to collect, and how would you use this information in order to deduce the index of refraction of the gas in the cube? https://seo-videos.collegephysicsanswers.com/ch25/ap09/ed1ch25ap09.mp4 351 2 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/object-25-cm-front-converging-lens-focal-length-25-cm-where-will-resulting-image An object is 25 cm in front of a converging lens with a focal length… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap13/thumbs-ed1ch25ap13-00002.png An object is 25 cm in front of a converging lens with a focal length of 25 cm. Where will the resulting image be located? (a) 25 cm in front of the lens(b) 25 cm behind the lens(c) 50 cm behind the lens(d) at infinity (either in front of or behind the lens) https://seo-videos.collegephysicsanswers.com/ch25/ap13/ed1ch25ap13.mp4 55 8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-wishes-predict-magnification-image-given-distance-object-converging-lens A student wishes to predict the magnification of an image given the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap15/thumbs-ed1ch25ap15-00002.png A student wishes to predict the magnification of an image given the distance from the object to a converging lens with an unknown index of refraction. What data must the student collect in order to make such a prediction for any object distance? (a) A specific object distance and the image distance associated with that object distance.(b) A specific image distance and a determination of whether the image formed is upright or inverted.(c) The diameter and index of refraction of the lens.(d) The radius of curvature of each side of the lens. https://seo-videos.collegephysicsanswers.com/ch25/ap15/ed1ch25ap15.mp4 124 8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mirror-shows-upright-image-twice-large-object-when-object-10-cm-away-mirror-what A mirror shows an upright image twice as large as the object when the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap19/thumbs-ed1ch25ap19-00002.png A mirror shows an upright image twice as large as the object when the object is 10 cm away from the mirror. What is the focal length of the mirror? (a) -10 cm(b) 10 cm(c) 20 cm(d) 40 cm https://seo-videos.collegephysicsanswers.com/ch25/ap19/ed1ch25ap19.mp4 65 8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-testing-properties-mirror-unknown-radius-curvature-student-notices-no A student is testing the properties of a mirror with an unknown… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/ap17/thumbs-ed1ch25ap17-00002.png A student is testing the properties of a mirror with an unknown radius of curvature. The student notices that no matter how far an object is placed from the mirror, the image seen in the mirror is always upright and smaller than the object. What can the student deduce about this mirror? (a) The mirror is convex.(b) The mirror is flat.(c) The mirror is concave.(d) More information is required to deduce the shape of the mirror. https://seo-videos.collegephysicsanswers.com/ch25/ap17/ed1ch25ap17.mp4 155 8 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-length-pendulum-has-period-0500-s What is the length of a pendulum that has a period of 0.500 s? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe22/thumbs-ed1ch16pe22-00002.png What is the length of a pendulum that has a period of 0.500 s? https://seo-videos.collegephysicsanswers.com/ch16/pe22/ed1ch16pe22.mp4 48 369 5 2020-06-04 yes 2020-06-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-period-100-m-long-pendulum What is the period of a 1.00-m-long pendulum? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe24/thumbs-ed1ch16pe24-00002.png What is the period of a 1.00-m-long pendulum? https://seo-videos.collegephysicsanswers.com/ch16/pe24/ed1ch16pe24.mp4 22 125 4 2020-06-04 yes 2020-06-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/pendulum-has-period-300000-s-and-located-where-acceleration-due-gravity (a) A pendulum that has a period of 3.00000 s and that is located… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe28/thumbs-ed1ch16pe28-00002.png (a) A pendulum that has a period of 3.00000 s and that is located where the acceleration due to gravity is 9.79 m/s ^2 is moved to a location where it the acceleration due to gravity is 9.82 m/s ^2. What is its new period? (b) Explain why so many digits are needed in the value for the period, based on the relation between the period and the acceleration due to gravity. https://seo-videos.collegephysicsanswers.com/ch16/pe28/ed1ch16pe28.mp4 255 128 2020-06-04 yes 2020-06-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-effect-period-pendulum-if-you-double-its-length-b-what-effect-period (a) What is the effect on the period of a pendulum if you double its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe30/thumbs-ed1ch16pe30-00002.png (a) What is the effect on the period of a pendulum if you double its length? (b) What is the effect on the period of a pendulum if you decrease its length by 5.00%? https://seo-videos.collegephysicsanswers.com/ch16/pe30/ed1ch16pe30.mp4 95 223 3 2020-06-04 yes 2020-06-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/equation-torque-current-carrying-loop-tau-niab-sintheta-units-textrmn-cdot Since the equation for torque on a current-carrying loop is \tau =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe45/thumbs-ed1ch22pe45-00002.png Since the equation for torque on a current-carrying loop is \tau = NIAB \sin(\theta), the units of N \cdot m must equal units of A \cdot m ^2 \cdot T . Verify this. https://seo-videos.collegephysicsanswers.com/ch22/pe45/ed1ch22pe45.mp4 143 55 5 2018-05-17 yes 2018-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-was-major-collision-asteroid-moon-medieval-times-it-was-described-monks There was a major collision of an asteroid with the Moon in medieval… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe09/thumbs-ed1ch25pe09-00002.png There was a major collision of an asteroid with the Moon in medieval times. It was described by monks at Canterbury Cathedral in England as a red glow on and around the Moon. How long after the asteroid hit the Moon, which is 3.84 x 10^5 km away, would the light first arrive on Earth? https://seo-videos.collegephysicsanswers.com/ch25/pe09/ed1ch25pe09.mp4 49 59 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-light-travels-water-another-substance-angle-incidence-100circ-and-angle Suppose light travels from water to another substance, with an angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe17/thumbs-ed1ch25pe17-00002.png Suppose light travels from water to another substance, with an angle of incidence of 10.0° and an angle of refraction of 14.9°. (a) What is the index of refraction of the other substance? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch25/pe17/ed1ch25pe17.mp4 111 38 4.5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-traveling-water-gemstone-strikes-surface-angle-800circ-and-has-angle Light traveling from water to a gemstone strikes the surface at an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe19/thumbs-ed1ch25pe19-00002.png Light traveling from water to a gemstone strikes the surface at an angle of 80.0° and has an angle of refraction of 15.2°. (a) What is the speed of light in the gemstone? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch25/pe19/ed1ch25pe19.mp4 166 50 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/end-example-254-it-was-stated-critical-angle-light-going-diamond-air-244circ (a) At the end of Example 25.4, it was stated that the critical angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe21/thumbs-ed1ch25pe21-00002.png (a) At the end of Example 25.4, it was stated that the critical angle for light going from diamond to air is 24.4°. Verify this. (b) What is the critical angle for light going from zircon to air? https://seo-videos.collegephysicsanswers.com/ch25/pe21/ed1ch25pe21.mp4 125 105 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-angle-will-you-get-total-internal-reflection-light-traveling-water At what minimum angle will you get total internal reflection of light… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe23/thumbs-ed1ch25pe23-00002.png At what minimum angle will you get total internal reflection of light traveling in water and reflected from ice? https://seo-videos.collegephysicsanswers.com/ch25/pe23/ed1ch25pe23.mp4 109 164 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-can-determine-index-refraction-substance-determining-its-critical-angle-what You can determine the index of refraction of a substance by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe25/thumbs-ed1ch25pe25-00002.png You can determine the index of refraction of a substance by determining its critical angle. (a) What is the index of refraction of a substance that has a critical angle of 68.4° when submerged in water? What is the substance, based on Table 25.1? (b) What would the critical angle be for this substance in air? https://seo-videos.collegephysicsanswers.com/ch25/pe25/ed1ch25pe25.mp4 176 214 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-ray-entering-optical-fiber-surrounded-air-first-refracted-and-then A light ray entering an optical fiber surrounded by air is first… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe27/thumbs-ed1ch25pe27-00002.png A light ray entering an optical fiber surrounded by air is first refracted and then reflected as shown in Figure 25.56. Show that if the fiber is made from crown glass, any incident ray will be totally internally reflected. https://seo-videos.collegephysicsanswers.com/ch25/pe27/ed1ch25pe27.mp4 285 120 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-pendulum-driven-clock-gains-500-sday-what-fractional-change-pendulum-length If a pendulum-driven clock gains 5.00 s/day, what fractional change… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe34/thumbs-ed1ch16pe34-00002.png If a pendulum-driven clock gains 5.00 s/day, what fractional change in pendulum length must be made for it to keep perfect time? https://seo-videos.collegephysicsanswers.com/ch16/pe34/ed1ch16pe34.mp4 301 80 5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/seismographs-measure-arrival-times-earthquakes-precision-0100-s-get-distance (a) Seismographs measure the arrival times of earthquakes with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe56/thumbs-ed1ch16pe56-00002.png (a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, they compare the arrival times of S- and P-waves, which travel at different speeds. Figure 16.48) If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.) https://seo-videos.collegephysicsanswers.com/ch16/pe56/ed1ch16pe56.mp4 274 88 5 2020-06-06 yes 2020-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/near-top-citigroup-center-building-new-york-city-there-object-mass-4times Near the top of the Citigroup Center building in New York City, there… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe36/thumbs-ed1ch16pe36-00002.png Near the top of the Citigroup Center building in New York City, there is an object with mass of 4 x 10^{5} kg on springs that have adjustable force constants. Its function is to dampen wind-driven oscillations of the building by oscillating at the same frequency as the building is being driven—the driving force is transferred to the object, which oscillates instead of the entire building. (a) What effective force constant should the springs have to make the object oscillate with a period of 2.00 s? (b) What energy is stored in the springs for a 2.00-m displacement from equilibrium? https://seo-videos.collegephysicsanswers.com/ch16/pe36/ed1ch16pe36.mp4 111 305 3.7 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/novelty-clock-has-00100-kg-mass-object-bouncing-spring-has-force-constant-125-nm A novelty clock has a 0.0100-kg mass object bouncing on a spring that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe38/thumbs-ed1ch16pe38-00002.png A novelty clock has a 0.0100-kg mass object bouncing on a spring that has a force constant of 1.25 N/m. What is the maximum velocity of the object if the object bounces 3.00 cm above and below its equilibrium position? (b) How many joules of kinetic energy does the object have at its maximum velocity? https://seo-videos.collegephysicsanswers.com/ch16/pe38/ed1ch16pe38.mp4 57 149 3.5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ladybug-sits-120-cm-center-beatles-music-album-spinning-3333-rpm-what-maximum A ladybug sits 12.0 cm from the center of a Beatles music album… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe40/thumbs-ed1ch16pe40-00002.png A ladybug sits 12.0 cm from the center of a Beatles music album spinning at 33.33 rpm. What is the maximum velocity of its shadow on the wall behind the turntable, if illuminated parallel to the record by the parallel rays of the setting Sun? https://seo-videos.collegephysicsanswers.com/ch16/pe40/ed1ch16pe40.mp4 168 65 5 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/engineering-application-suspension-bridge-oscillates-effective-force-constant Engineering Application: A suspension bridge oscillates with an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe46/thumbs-ed1ch16pe46-00002.png Engineering Application: A suspension bridge oscillates with an effective force constant of 1.00 x 10^{8} N/m . (a) How much energy is needed to make it oscillate with an amplitude of 0.100 m? (b) If soldiers march across the bridge with a cadence equal to the bridge’s natural frequency and impart 1.00 x 10^{4} J of energy each second, how long does it take for the bridge’s oscillations to go from 0.100 m to 0.500 m amplitude? https://seo-videos.collegephysicsanswers.com/ch16/pe46/ed1ch16pe46.mp4 136 179 4 2020-06-05 yes 2020-06-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ray-610-nm-light-goes-air-fused-quartz-incident-angle-550circ-what-incident A ray of 610 nm light goes from air into fused quartz at an incident… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe33/thumbs-ed1ch25pe33-00002.png A ray of 610 nm light goes from air into fused quartz at an incident angle of 55.0°. At what incident angle must 470 nm light enter flint glass to have the same angle of refraction? https://seo-videos.collegephysicsanswers.com/ch25/pe33/ed1ch25pe33.mp4 232 153 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-note-your-prescription-new-eyeglasses-450-d-what-will-their-focal-length-be You note that your prescription for new eyeglasses is –4.50 D. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe39/thumbs-ed1ch25pe39-00002.png You note that your prescription for new eyeglasses is –4.50 D. What will their focal length be? https://seo-videos.collegephysicsanswers.com/ch25/pe39/ed1ch25pe39.mp4 28 120 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-piece-paper-must-you-hold-your-fathers-225-d-reading-glasses-try-burn How far from a piece of paper must you hold your father’s 2.25 D… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe43/thumbs-ed1ch25pe43-00002.png How far from a piece of paper must you hold your father’s 2.25 D reading glasses to try to burn a hole in the paper with sunlight? https://seo-videos.collegephysicsanswers.com/ch25/pe43/ed1ch25pe43.mp4 63 96 3.3 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-hydrogen-fusion-supply-energy-dream-may-be-realized-next-century-fusion (a) Use of hydrogen fusion to supply energy is a dream that may be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe29/thumbs-ed1ch07pe29-00002.png (a) Use of hydrogen fusion to supply energy is a dream that may be realized in the next century. Fusion would be a relatively clean and almost limitless supply of energy, as can be seen from Table 7.1. To illustrate this, calculate how many years the present energy needs of the world could be supplied by one millionth of the oceans’ hydrogen fusion energy. (b) How does this time compare with historically significant events, such as the duration of stable economic systems? https://seo-videos.collegephysicsanswers.com/ch07/pe29/ed1ch07pe29.mp4 84 134 3 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-have-device-extracts-energy-ocean-breakers-direct-proportion-their Suppose you have a device that extracts energy from ocean breakers in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe68/thumbs-ed1ch16pe68-00002.png Suppose you have a device that extracts energy from ocean breakers in direct proportion to their intensity. If the device produces 10.0 kW of power on a day when the breakers are 1.20 m high, how much will it produce when they are 0.600 m high? https://seo-videos.collegephysicsanswers.com/ch16/pe68/ed1ch16pe68.mp4 205 64 1 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/narrow-beam-white-light-enters-prism-made-crown-glass-450circ-incident-angle A narrow beam of white light enters a prism made of crown glass at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe35/thumbs-ed1ch25pe35-00002.png A narrow beam of white light enters a prism made of crown glass at a 45.0° incident angle, as shown in Figure 25.57. At what angles, \theta_R and \theta_V , do the red (660 nm) and violet (410 nm) components of the light emerge from the prism? https://seo-videos.collegephysicsanswers.com/ch25/pe35/ed1ch25pe35.mp4 377 173 3.7 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/middle-c-hammer-piano-hits-two-strings-producing-beats-150-hz-one-strings-tuned The middle-C hammer of a piano hits two strings, producing beats of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe58/thumbs-ed1ch16pe58-00002.png The middle-C hammer of a piano hits two strings, producing beats of 1.50 Hz. One of the strings is tuned to 260.00 Hz. What frequencies could the other string have? https://seo-videos.collegephysicsanswers.com/ch16/pe58/ed1ch16pe58.mp4 91 105 5 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/microphone-receiving-pure-sound-tone-feeds-oscilloscope-producing-wave-its A microphone receiving a pure sound tone feeds an oscilloscope,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe70/thumbs-ed1ch16pe70-00002.png A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If the sound intensity is originally 2.00 x 10^{-5} W/m ^2, but is turned up until the amplitude increases by 30.0%, what is the new intensity? https://seo-videos.collegephysicsanswers.com/ch16/pe70/ed1ch16pe70.mp4 108 61 5 2020-06-08 yes 2020-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-star-1000-times-brighter-our-sun-emitting-1000-times-power-suddenly-goes Suppose a star 1000 times brighter than our Sun (that is, emitting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe31/thumbs-ed1ch07pe31-00002.png Suppose a star 1000 times brighter than our Sun (that is, emitting 1000 times the power) suddenly goes supernova. Using data from Table 7.3: (a) By what factor does its power output increase? (b) How many times brighter than our entire Milky Way galaxy is the supernova? (c) Based on your answers, discuss whether it should be possible to observe supernovas in distant galaxies. Note that there are on the order of 10^{11} observable galaxies, the average brightness of which is somewhat less than our own galaxy. https://seo-videos.collegephysicsanswers.com/ch07/pe31/ed1ch07pe31.mp4 80 109 5 2018-03-17 yes 2018-03-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-focal-length-magnifying-glass-produces-magnification-300-when-held-500-cm (a) What is the focal length of a magnifying glass that produces a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe47/thumbs-ed1ch25pe47-00002.png (a) What is the focal length of a magnifying glass that produces a magnification of 3.00 when held 5.00 cm from an object, such as a rare coin? (b) Calculate the power of the magnifier in diopters. (c) Discuss how this power compares to those for store-bought reading glasses (typically 1.0 to 4.0 D). Is the magnifier’s power greater, and should it be? https://seo-videos.collegephysicsanswers.com/ch25/pe47/ed1ch25pe47.mp4 130 124 4.5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/example-257-magnification-book-held-750-cm-100-cm-focal-length-lens-was-found-be In Example 25.7, the magnification of a book held 7.50 cm from a 10.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe49/thumbs-ed1ch25pe49-00002.png In Example 25.7, the magnification of a book held 7.50 cm from a 10.0 cm focal length lens was found to be 3.00. (a) Find the magnification for the book when it is held 8.50 cm from the magnifier. (b) Do the same for when it is held 9.50 cm from the magnifier. (c) Comment on the trend in m as the object distance increases as in these two calculations. https://seo-videos.collegephysicsanswers.com/ch25/pe49/ed1ch25pe49.mp4 180 73 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-focal-length-makeup-mirror-has-power-150-d What is the focal length of a makeup mirror that has a power of 1.50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe53/thumbs-ed1ch25pe53-00002.png What is the focal length of a makeup mirror that has a power of 1.50 D? https://seo-videos.collegephysicsanswers.com/ch25/pe53/ed1ch25pe53.mp4 20 42 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-frequency-sound-has-010-m-wavelength-when-speed-sound-340-ms What frequency sound has a 0.10-m wavelength when the speed of sound… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe02/thumbs-ed1ch17pe02-00002.png What frequency sound has a 0.10-m wavelength when the speed of sound is 340 m/s? https://seo-videos.collegephysicsanswers.com/ch17/pe02/ed1ch17pe02.mp4 33 109 3 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-sound-medium-where-100-khz-frequency-produces-596-cm-wavelength-b (a) What is the speed of sound in a medium where a 100-kHz frequency… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe04/thumbs-ed1ch17pe04-00002.png (a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength? (b) Which substance in Table 17.1 is this likely to be? https://seo-videos.collegephysicsanswers.com/ch17/pe04/ed1ch17pe04.mp4 59 47 5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/camera-100-mm-focal-length-lens-used-photograph-sun-and-moon-what-height-image A camera with a 100 mm focal length lens is used to photograph the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe51/thumbs-ed1ch25pe51-00002.png A camera with a 100 mm focal length lens is used to photograph the sun and moon. What is the height of the image of the sun on the film, given the sun is 1.40 x 10^6 km in diameter and is 1.50 x 10^8 km away? https://seo-videos.collegephysicsanswers.com/ch25/pe51/ed1ch25pe51.mp4 154 56 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mountain-climbers-carry-bottled-oxygen-when-very-high-altitudes-assuming Mountain climbers carry bottled oxygen when at very high altitudes.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe57/thumbs-ed1ch07pe57-00002.png Mountain climbers carry bottled oxygen when at very high altitudes. (a) Assuming that a mountain climber uses oxygen at twice the rate for climbing 116 stairs per minute (because of low air temperature and winds), calculate how many liters of oxygen a climber would need for 10.0 h of climbing. (These are liters at sea level.) Note that only 40% of the inhaled oxygen is utilized; the rest is exhaled. (b) How much useful work does the climber do if he and his equipment have a mass of 90.0 kg and he gains 1000 m of altitude? (c) What is his efficiency for the 10.0-h climb? https://seo-videos.collegephysicsanswers.com/ch07/pe57/ed1ch07pe57.mp4 127 61 5 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-flat-mirror-htextrmi-htextrmo-knowing-image-distance-behind-mirror-equal Show that for a flat mirror h_ i = h_ o , knowing that the image is a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe61/thumbs-ed1ch25pe61-00002.png Show that for a flat mirror h_ i = h_ o , knowing that the image is a distance behind the mirror equal in magnitude to the distance of the object from the mirror. https://seo-videos.collegephysicsanswers.com/ch25/pe61/ed1ch25pe61.mp4 77 42 5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-electric-room-heater-considered-first-example-section-calculate Referring to the electric room heater considered in the first example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe63/thumbs-ed1ch25pe63-00002.png Referring to the electric room heater considered in the first example in this section, calculate the intensity of IR radiation in W/m ^2 projected by the concave mirror on a person 3.00 m away. Assume that the heating element radiates 1500 W and has an area of 100 cm ^2, and that half of the radiated power is reflected and focused by the mirror. https://seo-videos.collegephysicsanswers.com/ch25/pe63/ed1ch25pe63.mp4 272 30 4.5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-power-output-watts-and-horsepower-700-kg-sprinter-who-accelerates-rest-100 (a) What is the power output in watts and horsepower of a 70.0-kg… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe45/thumbs-ed1ch07pe45-00002.png (a) What is the power output in watts and horsepower of a 70.0-kg sprinter who accelerates from rest to 10.0 m/s in 3.00 s? (b) Considering the amount of power generated, do you think a well-trained athlete could do this repetitively for long periods of time? https://seo-videos.collegephysicsanswers.com/ch07/pe45/ed1ch07pe45.mp4 73 164 4.5 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/example-128-dealt-flow-saline-solution-iv-system-verify-pressure-162-times-104 Example 12.8 dealt with the flow of saline solution in an IV system.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe43/thumbs-ed1ch12pe43-00002.png Example 12.8 dealt with the flow of saline solution in an IV system. (a) Verify that a pressure of 1.62 x 10^4 Pa is created at a depth of 1.61 m in a saline solution, assuming its density to be that of sea water. (b) Calculate the new flow rate if the height of the saline solution is decreased to 1.50 m. (c) At what height would the direction of flow be reversed? (This reversal can be a problem when patients stand up.)**Example 12.8**: An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.120 cm ^3 /s through a needle of radius 0.150 mm and length 2.50 cm. What pressure is needed at the entrance of the needle to cause this flow, assuming the viscosity of the saline solution to be the same as that of water? The gauge pressure of the blood in the patient's vein is 8.00 mm Hg. (Assume that the temperature is 20° C .) https://seo-videos.collegephysicsanswers.com/ch12/pe43/ed1ch12pe43.mp4 268 131 4 2018-05-30 yes 2018-05-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-power-eye-when-viewing-object-500-cm-away What is the power of the eye when viewing an object 50.0 cm away? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe01/thumbs-ed1ch26pe01-00002.png What is the power of the eye when viewing an object 50.0 cm away? https://d1igkeoc1zsqhw.cloudfront.net/ch26/pe01/ed1ch26pe01.mp4 41 116 3 2018-11-09 no 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-newtons-universal-law-gravitation-under-what-circumstances-force-due Given Newton's universal law of gravitation, under what circumstances… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/ap02/thumbs-ed1ch06ap02-00002.png Given Newton's universal law of gravitation, under what circumstances is the force due to gravity maximized? https://seo-videos.collegephysicsanswers.com/ch06/ap02/ed1ch06ap02.mp4 35 8 2019-11-25 yes 2019-11-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/saturns-moon-titan-has-radius-258times-106textrm-m-m-and-measured-gravitational Saturn's moon Titan has a radius of 2.58 x 10^{6} m m and a measured… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/ap04/thumbs-ed1ch06ap04-00002.png Saturn's moon Titan has a radius of 2.58 x 10^{6} m m and a measured gravitational field of 1.35 m/s ^2. What is its mass? https://seo-videos.collegephysicsanswers.com/ch06/ap04/ed1ch06ap04.mp4 86 10 5 2019-11-25 yes 2019-11-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/earth-15times-1011textrm-m-sun-mercury-57times-10-10textrm-m-sun-how-does Earth is 1.5 x 10^{11} m from the Sun. Mercury is 5.7 x 10^{ 10} m … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/ap06/thumbs-ed1ch06ap06-00002.png Earth is 1.5 x 10^{11} m from the Sun. Mercury is 5.7 x 10^{ 10} m from the Sun. How does the gravitational field of the Sun on Mercury (g_{SM}) compare to the gravitational field of the Sun on Earth (g_{SE})? https://seo-videos.collegephysicsanswers.com/ch06/ap06/ed1ch06ap06.mp4 74 10 2019-11-25 yes 2019-11-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/amplitude-sound-wave-measured-terms-its-maximum-gauge-pressure-what-factor-does The amplitude of a sound wave is measured in terms of its maximum… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe24/thumbs-ed1ch17pe24-00002.png The amplitude of a sound wave is measured in terms of its maximum gauge pressure. By what factor does the amplitude of a sound wave increase if the sound intensity level goes up by 40.0 dB? https://seo-videos.collegephysicsanswers.com/ch17/pe24/ed1ch17pe24.mp4 292 62 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-decibel-level-sound-twice-intense-900-db-sound-b-what-decibel-level-sound (a) What is the decibel level of a sound that is twice as intense as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe18/thumbs-ed1ch17pe18-00002.png (a) What is the decibel level of a sound that is twice as intense as a 90.0-dB sound? (b) What is the decibel level of a sound that is one-fifth as intense as a 90.0-dB sound? https://seo-videos.collegephysicsanswers.com/ch17/pe18/ed1ch17pe18.mp4 191 151 5 2020-06-10 yes 2020-06-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-power-square-meter-reaching-earths-upper-atmosphere-sun-take-power (a) Calculate the power per square meter reaching Earth’s upper… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe43/thumbs-ed1ch07pe43-00002.png (a) Calculate the power per square meter reaching Earth’s upper atmosphere from the Sun. (Take the power output of the Sun to be 4.00 x 10^{26} W ). (b) Part of this is absorbed and reflected by the atmosphere, so that a maximum of 1.30 kW/m ^2 reaches Earth’s surface. Calculate the area in km ^2 of solar energy collectors needed to replace an electric power plant that generates 750 MW if the collectors convert an average of 2.00% of the maximum power into electricity. (This small conversion efficiency is due to the devices themselves, and the fact that the sun is directly overhead only briefly.) With the same assumptions, what area would be needed to meet the United States’ energy needs (1.05 x 10^{20} J )? Australia’s energy needs (5.4 x 10^{18} J )? China’s energy needs (6.3 x 10^{19})? (These energy consumption values are from 2006.) https://seo-videos.collegephysicsanswers.com/ch07/pe43/ed1ch07pe43.mp4 408 86 3.7 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lasik-vision-correction-power-patients-eye-increased-300-d-assuming-produces In a LASIK vision correction, the power of a patient’s eye is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe09/thumbs-ed1ch26pe09-00002.png In a LASIK vision correction, the power of a patient’s eye is increased by 3.00 D. Assuming this produces normal close vision, what was the patient’s near point before the procedure? https://seo-videos.collegephysicsanswers.com/ch26/pe09/ed1ch26pe09.mp4 112 133 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/power-physicians-eyes-530-d-while-examining-patient-how-far-her-eyes-feature The power of a physician’s eyes is 53.0 D while examining a patient.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe13/thumbs-ed1ch26pe13-00002.png The power of a physician’s eyes is 53.0 D while examining a patient. How far from her eyes is the feature being examined? https://seo-videos.collegephysicsanswers.com/ch26/pe13/ed1ch26pe13.mp4 59 39 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/kanellos-kanellopoulos-flew-119-km-crete-santorini-greece-april-23-1988-daedalus Kanellos Kanellopoulos flew 119 km from Crete to Santorini, Greece,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe55/thumbs-ed1ch07pe55-00002.png Kanellos Kanellopoulos flew 119 km from Crete to Santorini, Greece, on April 23, 1988, in the Daedalus 88, an aircraft powered by a bicycle-type drive mechanism (see Figure 7.42). His useful power output for the 234-min trip was about 350 W. Using the efficiency for cycling from Table 7.2, calculate the food energy in kilojoules he metabolized during the flight. https://seo-videos.collegephysicsanswers.com/ch07/pe55/ed1ch07pe55.mp4 97 64 5 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sound-more-effectively-transmitted-stethoscope-direct-contact-through-air-and-it Sound is more effectively transmitted into a stethoscope by direct… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe28/thumbs-ed1ch17pe28-00002.png Sound is more effectively transmitted into a stethoscope by direct contact than through the air, and it is further intensified by being concentrated on the smaller area of the eardrum. It is reasonable to assume that sound is transmitted into a stethoscope 100 times as effectively compared with transmission though the air. What, then, is the gain in decibels produced by a stethoscope that has a sound gathering area of 15.0 cm ^2 , and concentrates the sound onto two eardrums with a total area of 0.900 cm ^2 with an efficiency of 40.0%? https://seo-videos.collegephysicsanswers.com/ch17/pe28/ed1ch17pe28.mp4 340 14 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/severely-myopic-patient-has-far-point-500-cm-how-many-diopters-should-power-his A severely myopic patient has a far point of 5.00 cm. By how many… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe11/thumbs-ed1ch26pe11-00002.png A severely myopic patient has a far point of 5.00 cm. By how many diopters should the power of his eye be reduced in laser vision correction to obtain normal distant vision for him? https://seo-videos.collegephysicsanswers.com/ch26/pe11/ed1ch26pe11.mp4 121 117 4.7 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/old-fashioned-pendulum-clocks-are-powered-masses-need-be-wound-back-top-clock Old-fashioned pendulum clocks are powered by masses that need to be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap27/thumbs-ed1ch07ap27-00002.png Old-fashioned pendulum clocks are powered by masses that need to be wound back to the top of the clock about once a week to counteract energy lost due to friction and to the chimes. One particular clock has three masses: 4.0 kg, 4.0 kg, and 6.0 kg. They can drop 1.3 meters. How much energy does the clock use in a week?(a) 51 J(b) 76 J(c) 127 J(d) 178 J https://seo-videos.collegephysicsanswers.com/ch07/ap27/ed1ch07ap27.mp4 34 8 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-loading-toy-dart-gun-which-has-two-settings-more-powerful-spring You are loading a toy dart gun, which has two settings, the more… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap25/thumbs-ed1ch07ap25-00002.png You are loading a toy dart gun, which has two settings, the more powerful with the spring compressed twice as far as the lower setting. If it takes 5.0 J of work to compress the dart gun to the lower setting, how much work does it take for the higher setting?(a) 20 J(b) 10 J(c) 2.5 J(d) 40 J https://seo-videos.collegephysicsanswers.com/ch07/ap25/ed1ch07ap25.mp4 84 16 5 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-beat-frequencies-result-if-piano-hammer-hits-three-strings-emit-frequencies What beat frequencies result if a piano hammer hits three strings… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe40/thumbs-ed1ch17pe40-00002.png What beat frequencies result if a piano hammer hits three strings that emit frequencies of 127.8, 128.1, and 128.3 Hz? https://seo-videos.collegephysicsanswers.com/ch17/pe40/ed1ch17pe40.mp4 50 20 5 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/far-point-myopic-administrator-500-cm-what-relaxed-power-his-eyes-b-if-he-has The far point of a myopic administrator is 50.0 cm. (a) What is the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe15/thumbs-ed1ch26pe15-00002.png The far point of a myopic administrator is 50.0 cm. (a) What is the relaxed power of his eyes? (b) If he has the normal 8.00% ability to accommodate, what is the closest object he can see clearly? https://seo-videos.collegephysicsanswers.com/ch26/pe15/ed1ch26pe15.mp4 143 118 4 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/10-kg-baseball-flying-10-ms-how-much-kinetic-energy-does-it-have-potential A 1.0 kg baseball is flying at 10 m/s. How much kinetic energy does… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap19/thumbs-ed1ch07ap19-00002.png A 1.0 kg baseball is flying at 10 m/s. How much kinetic energy does it have? Potential energy?(a) 10 J, 20 J(b) 50 J, 20 J(c) unknown, 50 J(d) 50 J, unknown https://seo-videos.collegephysicsanswers.com/ch07/ap19/ed1ch07ap19.mp4 36 4 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spring-force-constant-5000-nm-and-rest-length-30-m-used-catapult-when-compressed A spring with a force constant of 5000 N/m and a rest length of 3.0 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap23/thumbs-ed1ch07ap23-00002.png A spring with a force constant of 5000 N/m and a rest length of 3.0 m is used in a catapult. When compressed to 1.0 m, it is used to launch a 50 kg rock. However, there is an error in the release mechanism, so the rock gets launched almost straight up. How high does it go, and how fast is it going when it hits the ground? https://seo-videos.collegephysicsanswers.com/ch07/ap23/ed1ch07ap23.mp4 175 32 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-have-120-g-yo-yo-you-are-swinging-09-ms-how-much-energy-does-it-have-how You have a 120-g yo-yo that you are swinging at 0.9 m/s. How much… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap21/thumbs-ed1ch07ap21-00002.png You have a 120-g yo-yo that you are swinging at 0.9 m/s. How much energy does it have? How high can it get above the lowest point of the swing without your doing any additional work, on Earth? How high could it get on the Moon, where gravity is 1/6 Earth’s? https://seo-videos.collegephysicsanswers.com/ch07/ap21/ed1ch07ap21.mp4 117 24 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-system-which-main-forces-acting-are-parallel-or-antiparallel-center Describe a system in which the main forces acting are parallel or… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap15/thumbs-ed1ch07ap15-00002.png Describe a system in which the main forces acting are parallel or antiparallel to the center of mass, and justify your answer. https://seo-videos.collegephysicsanswers.com/ch07/ap15/ed1ch07ap15.mp4 31 6 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-has-two-red-wagons-rear-one-tied-front-non-stretching-rope-if-child-pushes A child has two red wagons, with the rear one tied to the front by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap17/thumbs-ed1ch07ap17-00002.png A child has two red wagons, with the rear one tied to the front by a (non-stretching) rope. If the child pushes on the rear wagon, what happens to the kinetic energy of each of the wagons, and the two-wagon system? https://seo-videos.collegephysicsanswers.com/ch07/ap17/ed1ch07ap17.mp4 94 10 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-launching-2-kg-potato-out-potato-cannon-cannon-15-m-long-and-aimed-30 You are launching a 2-kg potato out of a potato cannon. The cannon is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap13/thumbs-ed1ch07ap13-00002.png You are launching a 2-kg potato out of a potato cannon. The cannon is 1.5 m long and is aimed 30 degrees above the horizontal. It exerts a 50 N force on the potato. What is the kinetic energy of the potato as it leaves the muzzle of the potato cannon? https://seo-videos.collegephysicsanswers.com/ch07/ap13/ed1ch07ap13.mp4 104 40 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-direction-relative-direction-travel-can-force-act-car-traveling-level In what direction relative to the direction of travel can a force act… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap09/thumbs-ed1ch07ap09-00002.png In what direction relative to the direction of travel can a force act on a car (traveling on level ground), and not change the kinetic energy? Can you give examples of such forces? https://seo-videos.collegephysicsanswers.com/ch07/ap09/ed1ch07ap09.mp4 32 8 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/roller-coaster-set-track-form-perfect-cosine-describe-and-graph-what-happens A roller coaster is set up with a track in the form of a perfect… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap07/thumbs-ed1ch07ap07-00002.png A roller coaster is set up with a track in the form of a perfect cosine. Describe and graph what happens to the kinetic energy of a cart as it goes through the first full period of the track. https://seo-videos.collegephysicsanswers.com/ch07/ap07/ed1ch07ap07.mp4 96 8 5 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-participating-iditarod-and-your-sled-dogs-are-pulling-you-across-frozen You are participating in the Iditarod, and your sled dogs are pulling… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap11/thumbs-ed1ch07ap11-00002.png You are participating in the Iditarod, and your sled dogs are pulling you across a frozen lake with a force of 1200 N while a 300 N wind is blowing at you at 135 degrees from your direction of travel. What is the net force, and will your kinetic energy increase or decrease? https://seo-videos.collegephysicsanswers.com/ch07/ap11/ed1ch07ap11.mp4 242 16 4 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-myopic-man-has-far-point-200-cm-what-power-eyeglasses-positioned-150-cm-his A very myopic man has a far point of 20.0 cm. What power eyeglasses,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe17/thumbs-ed1ch26pe17-00002.png A very myopic man has a far point of 20.0 cm. What power eyeglasses, positioned 1.50 cm from his eyes, will correct his distant vision? https://seo-videos.collegephysicsanswers.com/ch26/pe17/ed1ch26pe17.mp4 140 178 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/crane-lifting-construction-materials-ground-elevation-60-m-over-first-10-m-motor A crane is lifting construction materials from the ground to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap05/thumbs-ed1ch07ap05-00002.png A crane is lifting construction materials from the ground to an elevation of 60 m. Over the first 10 m, the motor linearly increases the force it exerts from 0 to 10 kN. It exerts that constant force for the next 40 m, and then winds down to 0 N again over the last 10 m, as shown in the figure. What is the total work done on the construction materials?(a) 500 kJ(b) 600 kJ(c) 300 kJ(d) 18 MJ https://seo-videos.collegephysicsanswers.com/ch07/ap05/ed1ch07ap05.mp4 115 18 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/look-figure-710c-you-compress-spring-x-and-then-release-it-next-you-compress Look at Figure 7.10(c). You compress a spring by x, and then release… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap03/thumbs-ed1ch07ap03-00002.png Look at Figure 7.10(c). You compress a spring by x, and then release it. Next you compress the spring by 2x. How much more work did you do the second time than the first? (a) Half as much(b) The same(c) Twice as much(d) Four times as much https://seo-videos.collegephysicsanswers.com/ch07/ap03/ed1ch07ap03.mp4 232 10 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-table-77-about-how-much-force-does-rocket-engine-exert-30-kg-payload-table Given Table 7.7 about how much force does the rocket engine exert on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap01/thumbs-ed1ch07ap01-00002.png Given Table 7.7 about how much force does the rocket engine exert on the 3.0-kg payload?**Table 7.7**: Distance traveled with rocket engine firing (m)Payload final velocity (m/s)5003104903001020450505312 (a) 150 N(b) 300 N(c) 450 N(d) 600 N https://seo-videos.collegephysicsanswers.com/ch07/ap01/ed1ch07ap01.mp4 138 22 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-do-30-j-work-load-toy-dart-gun-however-dart-10-cm-long-and-feels-frictional You do 30 J of work to load a toy dart gun. However, the dart is 10… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap33/thumbs-ed1ch07ap33-00002.png You do 30 J of work to load a toy dart gun. However, the dart is 10 cm long and feels a frictional force of 10 N while going through the dart gun’s barrel. What is the kinetic energy of the fired dart?(a) 30 J(b) 29 J(c) 28 J (d) 27 J https://seo-videos.collegephysicsanswers.com/ch07/ap33/ed1ch07ap33.mp4 40 18 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/old-fashioned-pocket-watches-needed-be-wound-daily-so-they-wouldnt-run-down-and Old-fashioned pocket watches needed to be wound daily so they… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap29/thumbs-ed1ch07ap29-00002.png Old-fashioned pocket watches needed to be wound daily so they wouldn’t run down and lose time, due to the friction in the internal components. This required a large number of turns of the winding key, but not much force per turn, and it was possible to overwind and break the watch. How was the energy stored?(a) A small mass raised a long distance(b) A large mass raised a short distance(c) A weak spring deformed a long way(d) A strong spring deformed a short way https://seo-videos.collegephysicsanswers.com/ch07/ap29/ed1ch07ap29.mp4 23 8 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-room-basement-smooth-concrete-floor-friction-force-equals-40-n-and-nice You are in a room in a basement with a smooth concrete floor… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap31/thumbs-ed1ch07ap31-00002.png You are in a room in a basement with a smooth concrete floor (friction force equals 40 N) and a nice rug (friction force equals 55 N) that is 3 m by 4 m. However, you have to push a very heavy box from one corner of the rug to the opposite corner of the rug. Will you do more work against friction going around the floor or across the rug, and how much extra?(a) Across the rug is 275 J extra(b) Around the floor is 5 J extra(c) Across the rug is 5 J extra(d) Around the floor is 280 J extra https://seo-videos.collegephysicsanswers.com/ch07/ap31/ed1ch07ap31.mp4 88 14 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/myopic-person-sees-her-eyeglasses-perscription-400-d-eyeglasses-positioned-175 A myopic person sees that her eyeglasses perscription is -4.00 D, for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe19/thumbs-ed1ch26pe19-00002.png A myopic person sees that her eyeglasses perscription is -4.00 D, for eyeglasses positioned 1.75 cm from her eyes. What is her far point? https://seo-videos.collegephysicsanswers.com/ch26/pe19/ed1ch26pe19.mp4 147 102 3.7 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nearsighted-man-cannot-see-objects-clearly-beyond-20-cm-his-eyes-how-close-must A nearsighted man cannot see objects clearly beyond 20 cm from his… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe21/thumbs-ed1ch26pe21-00002.png A nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to a mirror in order to see what he is doing when he shaves? https://seo-videos.collegephysicsanswers.com/ch26/pe21/ed1ch26pe21.mp4 118 82 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/boy-has-near-point-50-cm-and-far-point-500-cm-will-400-d-lens-correct-his-far A boy has a near point of 50 cm and a far point of 500 cm. Will a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe25/thumbs-ed1ch26pe25-00002.png A boy has a near point of 50 cm and a far point of 500 cm. Will a -4.00 D lens correct his far point to infinity? https://seo-videos.collegephysicsanswers.com/ch26/pe25/ed1ch26pe25.mp4 120 32 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/commuter-train-blows-its-200-hz-horn-it-approaches-crossing-speed-sound-335-ms A commuter train blows its 200-Hz horn as it approaches a crossing.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe34/thumbs-ed1ch17pe34-00002.png A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. (a) An observer waiting at the crossing receives a frequency of 208 Hz. What is the speed of the train? (b) What frequency does the observer receive as the train moves away? https://seo-videos.collegephysicsanswers.com/ch17/pe34/ed1ch17pe34.mp4 186 188 3.7 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-eagles-fly-directly-toward-one-another-first-150-ms-and-second-200-ms-both Two eagles fly directly toward one another, the first at 15.0 m/s and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe36/thumbs-ed1ch17pe36-00002.png Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 20.0 m/s. Both screech, the first one emitting a frequency of 3200 Hz and the second one emitting a frequency of 3800 Hz. What frequencies do they receive if the speed of sound is 330 m/s? https://seo-videos.collegephysicsanswers.com/ch17/pe36/ed1ch17pe36.mp4 301 200 4 2020-06-11 yes 2020-06-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-length-should-oboe-have-produce-fundamental-frequency-110-hz-day-when-speed What length should an oboe have to produce a fundamental frequency of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe46/thumbs-ed1ch17pe46-00002.png What length should an oboe have to produce a fundamental frequency of 110 Hz on a day when the speed of sound is 343 m/s? It is open at both ends. https://seo-videos.collegephysicsanswers.com/ch17/pe46/ed1ch17pe46.mp4 58 33 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnification-produced-0150-cm-focal-length-microscope-objective-0155-cm (a) What magnification is produced by a 0.150 cm focal length… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe27/thumbs-ed1ch26pe27-00002.png (a) What magnification is produced by a 0.150 cm focal length microscope objective that is 0.155 cm from the object being viewed? (b) What is the overall magnification if an 8x eyepiece (one that produces a magnification of 8.00) is used? https://seo-videos.collegephysicsanswers.com/ch26/pe27/ed1ch26pe27.mp4 121 273 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-switch-140na-60x-oil-immersion-objective-035na-20x-air-immersion-objective You switch from a 1.40NA 60x oil immersion objective to a 0.35NA 20x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe29/thumbs-ed1ch26pe29-00002.png You switch from a 1.40NA 60x oil immersion objective to a 0.35NA 20x air immersion objective. What are the acceptance angles for each? Compare and comment on the values. Which would you use first to locate the target area on your specimen? https://seo-videos.collegephysicsanswers.com/ch26/pe29/ed1ch26pe29.mp4 152 36 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angular-magnification-telescope-has-100-cm-focal-length-objective-and-250 What is the angular magnification of a telescope that has a 100 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe33/thumbs-ed1ch26pe33-00002.png What is the angular magnification of a telescope that has a 100 cm focal length objective and a 2.50 cm focal length eyepiece? https://seo-videos.collegephysicsanswers.com/ch26/pe33/ed1ch26pe33.mp4 19 129 3.8 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-reflecting-telescope-has-objective-mirror-100-m-radius-curvature-what A large reflecting telescope has an objective mirror with a 10.0 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe35/thumbs-ed1ch26pe35-00002.png A large reflecting telescope has an objective mirror with a 10.0 m radius of curvature. What angular magnification does it produce when a 3.00 m focal length eyepiece is used? https://seo-videos.collegephysicsanswers.com/ch26/pe35/ed1ch26pe35.mp4 33 75 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/75x-binocular-produces-angular-magnification-750-acting-telescope-mirrors-are A 7.5x binocular produces an angular magnification of -7.50, acting… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe37/thumbs-ed1ch26pe37-00002.png A 7.5x binocular produces an angular magnification of -7.50, acting like a telescope. (Mirrors are used to make the image upright.) If the binoculars have objective lenses with a 75.0 cm focal length, what is the focal length of the eyepiece lenses? https://seo-videos.collegephysicsanswers.com/ch26/pe37/ed1ch26pe37.mp4 35 29 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-are-using-standard-microscope-010na-4x-objective-and-switch-065na-40x You are using a standard microscope with a 0.10NA 4x objective and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/pe31/thumbs-ed1ch26pe31-00002.png You are using a standard microscope with a 0.10NA 4x objective and switch to a 0.65NA 40x objective. What are the acceptance angles for each? Compare and comment on the values. Which would you use first to locate the target area on of your specimen? https://seo-videos.collegephysicsanswers.com/ch26/pe31/ed1ch26pe31.mp4 147 14 5 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-correctly-describes-image-created-microscope-image-real-inverted Which of the following correctly describes the image created by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch26/ap07/thumbs-ed1ch26ap07-00002.png Which of the following correctly describes the image created by a microscope? (a) The image is real, inverted, and magnified.(b) The image is virtual, inverted, and magnified.(c) The image is real, upright, and magnified.(d) The image is virtual, upright, and magnified. https://seo-videos.collegephysicsanswers.com/ch26/ap07/ed1ch26ap07.mp4 67 2 2018-11-09 yes 2018-11-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-length-organ-pipe-closed-one-end-produces-fundamental-frequency-256-hz-when (a) Find the length of an organ pipe closed at one end that produces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe48/thumbs-ed1ch17pe48-00002.png (a) Find the length of an organ pipe closed at one end that produces a fundamental frequency of 256 Hz when air temperature is 18.0° C . (b) What is its fundamental frequency at 25.0° C ? https://seo-videos.collegephysicsanswers.com/ch17/pe48/ed1ch17pe48.mp4 158 93 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ear-canal-resonates-tube-closed-one-end-see-figure-1738-if-ear-canals-range The ear canal resonates like a tube closed at one end. (See Figure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe50/thumbs-ed1ch17pe50-00002.png The ear canal resonates like a tube closed at one end. (See Figure 17.38.) If ear canals range in length from 1.80 to 2.60 cm in an average population, what is the range of fundamental resonant frequencies? Take air temperature to be 37.0° C , which is the same as body temperature. How does this result correlate with the intensity versus frequency graph (Figure 17.36 of the human ear? https://seo-videos.collegephysicsanswers.com/ch17/pe50/ed1ch17pe50.mp4 173 61 5 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/can-you-tell-your-roommate-turned-sound-tv-if-its-average-sound-intensity-level Can you tell that your roommate turned up the sound on the TV if its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe60/thumbs-ed1ch17pe60-00002.png Can you tell that your roommate turned up the sound on the TV if its average sound intensity level goes from 70 to 73 dB? https://seo-videos.collegephysicsanswers.com/ch17/pe60/ed1ch17pe60.mp4 23 10 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-woman-needs-amplification-50times-1012-times-threshold-intensity-enable-her If a woman needs an amplification of 5.0 x 10^{12} times the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe66/thumbs-ed1ch17pe66-00002.png If a woman needs an amplification of 5.0 x 10^{12} times the threshold intensity to enable her to hear at all frequencies, what is her overall hearing loss in dB? Note that smaller amplification is appropriate for more intense sounds to avoid further damage to her hearing from levels above 90 dB. https://seo-videos.collegephysicsanswers.com/ch17/pe66/ed1ch17pe66.mp4 64 6 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/can-average-person-tell-2002-hz-sound-has-different-frequency-1999-hz-sound Can the average person tell that a 2002-Hz sound has a different… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe58/thumbs-ed1ch17pe58-00002.png Can the average person tell that a 2002-Hz sound has a different frequency than a 1999-Hz sound without playing them simultaneously? https://seo-videos.collegephysicsanswers.com/ch17/pe58/ed1ch17pe58.mp4 60 16 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-intensity-watts-meter-squared-600-hz-sound-having-loudness-60-phons-b-find (a) Find the intensity in watts per meter squared of a 60.0-Hz sound… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe68/thumbs-ed1ch17pe68-00002.png (a) Find the intensity in watts per meter squared of a 60.0-Hz sound having a loudness of 60 phons. (b) Find the intensity in watts per meter squared of a 10,000-Hz sound having a loudness of 60 phons. https://seo-videos.collegephysicsanswers.com/ch17/pe68/ed1ch17pe68.mp4 185 20 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-has-hearing-loss-60-db-near-5000-hz-due-noise-exposure-and-normal-hearing A child has a hearing loss of 60 dB near 5000 Hz, due to noise… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe70/thumbs-ed1ch17pe70-00002.png A child has a hearing loss of 60 dB near 5000 Hz, due to noise exposure, and normal hearing elsewhere. How much more intense is a 5000-Hz tone than a 400-Hz tone if they are both barely audible to the child? https://seo-videos.collegephysicsanswers.com/ch17/pe70/ed1ch17pe70.mp4 259 18 3.7 2020-06-12 yes 2020-06-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-when-light-passes-air-water-its-wavelength-decreases-0750-times-its Show that when light passes from air to water, its wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe01/thumbs-ed1ch27pe01-00002.png Show that when light passes from air to water, its wavelength decreases to 0.750 times its original value. https://d1igkeoc1zsqhw.cloudfront.net/ch27/pe01/ed1ch27pe01.mp4 134 188 5 2018-11-30 no 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-sound-intensity-level-decibels-ultrasound-intensity-105textrm-wm2-used What is the sound intensity level in decibels of ultrasound of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe72/thumbs-ed1ch17pe72-00002.png What is the sound intensity level in decibels of ultrasound of intensity 10^5 W/m ^2 , used to pulverize tissue during surgery? https://seo-videos.collegephysicsanswers.com/ch17/pe72/ed1ch17pe72.mp4 30 14 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-sound-intensity-level-decibels-200times-10-2textrm-wm2-ultrasound-used Find the sound intensity level in decibels of 2.00 x 10^{-2} W/m ^2… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe74/thumbs-ed1ch17pe74-00002.png Find the sound intensity level in decibels of 2.00 x 10^{-2} W/m ^2 ultrasound used in medical diagnostics. https://seo-videos.collegephysicsanswers.com/ch17/pe74/ed1ch17pe74.mp4 32 12 5 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-apart-are-two-layers-tissue-produce-echoes-having-round-trip-times-used (a) How far apart are two layers of tissue that produce echoes having… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe80/thumbs-ed1ch17pe80-00002.png (a) How far apart are two layers of tissue that produce echoes having round-trip times (used to measure distances) that differ by 0.750 \mu s ? (b) What minimum frequency must the ultrasound have to see detail this small? https://seo-videos.collegephysicsanswers.com/ch17/pe80/ed1ch17pe80.mp4 140 36 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ultrasound-reflected-oncoming-bloodstream-moving-300-cms-mixed-original Ultrasound reflected from an oncoming bloodstream that is moving at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe84/thumbs-ed1ch17pe84-00002.png Ultrasound reflected from an oncoming bloodstream that is moving at 30.0 cm/s is mixed with the original frequency of 2.50 MHz to produce beats. What is the beat frequency? (Assume that the frequency of 2.50 MHz is accurate to seven significant figures.) https://seo-videos.collegephysicsanswers.com/ch17/pe84/ed1ch17pe84.mp4 214 28 4 2020-06-13 yes 2020-06-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-thicknesses-crown-glass-and-water-would-contain-same-number What is the ratio of thicknesses of crown glass and water that would… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe05/thumbs-ed1ch27pe05-00002.png What is the ratio of thicknesses of crown glass and water that would contain the same number of wavelengths of light? https://seo-videos.collegephysicsanswers.com/ch27/pe05/ed1ch27pe05.mp4 193 120 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-light-falling-double-slits-separated-200-mutextrmm-if-third What is the wavelength of light falling on double slits separated by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe11/thumbs-ed1ch27pe11-00002.png What is the wavelength of light falling on double slits separated by 2.00 \mu m if the third-order maximum is at an angle of 60.0°? https://seo-videos.collegephysicsanswers.com/ch27/pe11/ed1ch27pe11.mp4 53 158 4.3 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-smallest-separation-between-two-slits-will-produce-second-order-maximum-720 What is the smallest separation between two slits that will produce a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe15/thumbs-ed1ch27pe15-00002.png What is the smallest separation between two slits that will produce a second-order maximum for 720-nm red light? https://seo-videos.collegephysicsanswers.com/ch27/pe15/ed1ch27pe15.mp4 73 52 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-delta-y-dfracxlambdad-calculate-distance-between-fringes-633-nm-light Using \Delta y = \dfrac{x\lambda}{d}, calculate the distance between… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe19/thumbs-ed1ch27pe19-00002.png Using \Delta y = \dfrac{x\lambda}{d}, calculate the distance between fringes for 633-nm light falling on double slits separated by 0.0800 mm, located 3.00 m from a screen as in Figure 27.56. https://seo-videos.collegephysicsanswers.com/ch27/pe19/ed1ch27pe19.mp4 51 60 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diffraction-grating-has-2000-lines-centimeter-what-angle-will-first-order A diffraction grating has 2000 lines per centimeter. At what angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe21/thumbs-ed1ch27pe21-00002.png A diffraction grating has 2000 lines per centimeter. At what angle will the first-order maximum be for 520-nm- wavelength green light? https://seo-videos.collegephysicsanswers.com/ch27/pe21/ed1ch27pe21.mp4 100 217 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-lines-centimeter-are-there-diffraction-grating-gives-first-order How many lines per centimeter are there on a diffraction grating that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe23/thumbs-ed1ch27pe23-00002.png How many lines per centimeter are there on a diffraction grating that gives a first-order maximum for 470-nm blue light at an angle of 25.0°? https://seo-videos.collegephysicsanswers.com/ch27/pe23/ed1ch27pe23.mp4 74 139 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/yellow-light-sodium-vapor-lamp-seems-be-pure-wavelength-it-produces-two-first The yellow light from a sodium vapor lamp seems to be of pure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe29/thumbs-ed1ch27pe29-00002.png The yellow light from a sodium vapor lamp seems to be of pure wavelength, but it produces two first-order maxima at 36.093° and 36.129° when projected on a 10,000 line per centimeter diffraction grating. What are the two wavelengths to an accuracy of 0.1 nm? https://seo-videos.collegephysicsanswers.com/ch27/pe29/ed1ch27pe29.mp4 120 75 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-10000-lines-centimeter-diffraction-grating-wavelengths-4099-nm-4337-nm (a) Given a 10000 lines per centimeter diffraction grating, the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe27/thumbs-ed1ch27pe27-00002.png (a) Given a 10000 lines per centimeter diffraction grating, the wavelengths 409.9 nm, 433.7 nm, 486.3 nm, 656.1 nm, form first-order maxima at angles of 24.2°, 25.7°, 29.1°, 41.0°, respectively. What do the four angles become if a 5000-line-per-centimeter diffraction grating is used? (b) Using this grating, what would the angles be for the second- order maxima? (c) Discuss the relationship between integral reductions in lines per centimeter and the new angles of various order maxima. https://seo-videos.collegephysicsanswers.com/ch27/pe27/ed1ch27pe27.mp4 302 15 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/structures-bird-feather-act-reflection-grating-having-8000-lines-centimeter-what Structures on a bird feather act like a reflection grating having… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe31/thumbs-ed1ch27pe31-00002.png Structures on a bird feather act like a reflection grating having 8000 lines per centimeter. What is the angle of the first-order maximum for 600-nm light? https://seo-videos.collegephysicsanswers.com/ch27/pe31/ed1ch27pe31.mp4 87 25 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-diffraction-grating-produces-first-order-maximum-shortest-wavelength-visible If a diffraction grating produces a first-order maximum for the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe35/thumbs-ed1ch27pe35-00002.png If a diffraction grating produces a first-order maximum for the shortest wavelength of visible light at 30.0°, at what angle will the first-order maximum be for the longest wavelength of visible light? https://seo-videos.collegephysicsanswers.com/ch27/pe35/ed1ch27pe35.mp4 133 56 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/analysis-shown-figure-below-also-applies-diffraction-gratings-lines-separated The analysis shown in the figure below also applies to diffraction… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe39/thumbs-ed1ch27pe39-00002.png The analysis shown in the figure below also applies to diffraction gratings with lines separated by a distance d. What is the distance between fringes produced by a diffraction grating having 125 lines per centimeter for 600-nm light, if the screen is 1.50 m away? https://seo-videos.collegephysicsanswers.com/ch27/pe39/ed1ch27pe39.mp4 69 33 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-visible-wavelength-has-its-fourth-order-maximum-angle-250circ-when (a) What visible wavelength has its fourth-order maximum at an angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe41/thumbs-ed1ch27pe41-00002.png (a) What visible wavelength has its fourth-order maximum at an angle of 25.0° when projected on a 25,000-line-per-centimeter diffraction grating? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch27/pe41/ed1ch27pe41.mp4 90 11 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-30000-line-centimeter-grating-will-not-produce-maximum-visible-light-b-what (a) Show that a 30,000-line-per-centimeter grating will not produce a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe37/thumbs-ed1ch27pe37-00002.png (a) Show that a 30,000-line-per-centimeter grating will not produce a maximum for visible light. (b) What is the longest wavelength for which it does produce a first-order maximum? (c) What is the greatest number of lines per centimeter a diffraction grating can have and produce a complete second- order spectrum for visible light? https://seo-videos.collegephysicsanswers.com/ch27/pe37/ed1ch27pe37.mp4 292 48 3.7 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-wavelength-light-has-its-third-minimum-angle-486circ-when-it-falls-single Find the wavelength of light that has its third minimum at an angle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe47/thumbs-ed1ch27pe47-00002.png Find the wavelength of light that has its third minimum at an angle of 48.6° when it falls on a single slit of width 3.00 \mu m . https://seo-videos.collegephysicsanswers.com/ch27/pe47/ed1ch27pe47.mp4 47 14 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/toy-gun-uses-spring-force-constant-300-nm-propel-100-g-steel-ball-if-spring A toy gun uses a spring with a force constant of 300 N/m to propel a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe63/thumbs-ed1ch07pe63-00002.png A toy gun uses a spring with a force constant of 300 N/m to propel a 10.0-g steel ball. If the spring is compressed 7.00 cm and friction is negligible: (a) How much force is needed to compress the spring? (b) To what maximum height can the ball be shot? (c) At what angles above the horizontal may a child aim to hit a target 3.00 m away at the same height as the gun? (d) What is the gun’s maximum range on level ground? https://seo-videos.collegephysicsanswers.com/ch07/pe63/ed1ch07pe63.mp4 394 153 3.5 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sodium-vapor-light-averaging-589-nm-wavelength-falls-single-slit-width-750 (a) Sodium vapor light averaging 589 nm in wavelength falls on a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe49/thumbs-ed1ch27pe49-00002.png (a) Sodium vapor light averaging 589 nm in wavelength falls on a single slit of width 7.50 \mu m . At what angle does it produces its second minimum? (b) What is the highest-order minimum produced? https://seo-videos.collegephysicsanswers.com/ch27/pe49/ed1ch27pe49.mp4 146 58 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/50-kg-rock-falls-10-m-cliff-if-air-resistance-exerts-force-10-n-what-kinetic A 5.0-kg rock falls off of a 10 m cliff. If air resistance exerts a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap39/thumbs-ed1ch07ap39-00002.png A 5.0-kg rock falls off of a 10 m cliff. If air resistance exerts a force of 10 N, what is the kinetic energy when the rock hits the ground?(a) 400 J(b) 12.6 m/s(c) 100 J(d) 500 J https://seo-videos.collegephysicsanswers.com/ch07/ap39/ed1ch07ap39.mp4 40 22 2018-03-20 yes 2018-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/child-has-two-red-wagons-rear-one-tied-front-stretchy-rope-spring-if-child-pulls A child has two red wagons, with the rear one tied to the front by a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap35/thumbs-ed1ch07ap35-00002.png A child has two red wagons, with the rear one tied to the front by a stretchy rope (a spring). If the child pulls on the front wagon, the \_\_\_\_ increases.(a) kinetic energy of the wagons(b) potential energy stored in the spring(c) both A and B(d) not enough information https://seo-videos.collegephysicsanswers.com/ch07/ap35/ed1ch07ap35.mp4 31 10 2018-03-20 yes 2018-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/railroads-were-invented-goods-often-traveled-along-canals-mules-pulling-barges Before railroads were invented, goods often traveled along canals,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap41/thumbs-ed1ch07ap41-00002.png Before railroads were invented, goods often traveled along canals, with mules pulling barges from the bank. If a mule is exerting a 1200 N force for 10 km, and the rope connecting the mule to the barge is at a 20 degree angle from the direction of travel, how much work did the mule do on the barge?(a) 12 MJ(b) 11 MJ(c) 4.1 MJ(d) 6 MJ https://seo-videos.collegephysicsanswers.com/ch07/ap41/ed1ch07ap41.mp4 51 12 2018-03-20 yes 2018-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-are-closed-systems-earth-car-frictionless-pendulum-mass-spring Which of the following are closed systems?(a) Earth(b) a car(c) a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/ap37/thumbs-ed1ch07ap37-00002.png Which of the following are closed systems?(a) Earth(b) a car(c) a frictionless pendulum(d) a mass on a spring in a vacuum https://seo-videos.collegephysicsanswers.com/ch07/ap37/ed1ch07ap37.mp4 52 12 2018-03-20 yes 2018-03-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/water-break-entrance-harbor-consists-rock-barrier-500-m-wide-opening-ocean-waves A water break at the entrance to a harbor consists of a rock barrier… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe55/thumbs-ed1ch27pe55-00002.png A water break at the entrance to a harbor consists of a rock barrier with a 50.0-m-wide opening. Ocean waves of 20.0-m wavelength approach the opening straight on. At what angle to the incident direction are the boats inside the harbor most protected against wave action? https://seo-videos.collegephysicsanswers.com/ch27/pe55/ed1ch27pe55.mp4 90 60 2.3 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/300-m-diameter-arecibo-radio-telescope-pictured-figure-2728-detects-radio-waves The 300-m-diameter Arecibo radio telescope pictured in Figure 27.28… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe57/thumbs-ed1ch27pe57-00002.png The 300-m-diameter Arecibo radio telescope pictured in Figure 27.28 detects radio waves with a 4.00 cm average wavelength. (a) What is the angle between two just-resolvable point sources for this telescope? (b) How close together could these point sources be at the 2 million light year distance of the Andromeda galaxy? https://seo-videos.collegephysicsanswers.com/ch27/pe57/ed1ch27pe57.mp4 122 90 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diffraction-spreading-flashlight-insignificant-compared-other-limitations-its Diffraction spreading for a flashlight is insignificant compared with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe59/thumbs-ed1ch27pe59-00002.png Diffraction spreading for a flashlight is insignificant compared with other limitations in its optics, such as spherical aberrations in its mirror. To show this, calculate the minimum angular spreading of a flashlight beam that is originally 5.00 cm in diameter with an average wavelength of 600 nm. https://seo-videos.collegephysicsanswers.com/ch27/pe59/ed1ch27pe59.mp4 71 28 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/telescope-can-be-used-enlarge-diameter-laser-beam-and-limit-diffraction A telescope can be used to enlarge the diameter of a laser beam and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe61/thumbs-ed1ch27pe61-00002.png A telescope can be used to enlarge the diameter of a laser beam and limit diffraction spreading. The laser beam is sent through the telescope in opposite the normal direction and can then be projected onto a satellite or the Moon. (a) If this is done with the Mount Wilson telescope, producing a 2.54-m-diameter beam of 633-nm light, what is the minimum angular spread of the beam? (b) Neglecting atmospheric effects, what is the size of the spot this beam would make on the Moon, assuming a lunar distance of 3.84 x 10^8 m ? https://seo-videos.collegephysicsanswers.com/ch27/pe61/ed1ch27pe61.mp4 188 28 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-diameter-mirror-telescope-would-allow-you-see-details-small-500-km What is the minimum diameter mirror on a telescope that would allow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe63/thumbs-ed1ch27pe63-00002.png What is the minimum diameter mirror on a telescope that would allow you to see details as small as 5.00 km on the Moon some 384,000 km away? Assume an average wavelength of 550 nm for the light received. https://seo-videos.collegephysicsanswers.com/ch27/pe63/ed1ch27pe63.mp4 111 34 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/planet-pluto-and-its-moon-charon-are-separated-19600-km-neglecting-atmospheric (a) The planet Pluto and its Moon Charon are separated by 19,600 km.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe65/thumbs-ed1ch27pe65-00002.png (a) The planet Pluto and its Moon Charon are separated by 19,600 km. Neglecting atmospheric effects, should the 5.08-m-diameter Mount Palomar telescope be able to resolve these bodies when they are 4.50 x 10^{9} km from Earth? Assume an average wavelength of 550 nm. (b) In actuality, it is just barely possible to discern that Pluto and Charon are separate bodies using an Earth-based telescope. What are the reasons for this? https://seo-videos.collegephysicsanswers.com/ch27/pe65/ed1ch27pe65.mp4 112 22 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-dots-are-placed-page-laser-printer-they-must-be-close-enough-so-you-do-not When dots are placed on a page from a laser printer, they must be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe67/thumbs-ed1ch27pe67-00002.png When dots are placed on a page from a laser printer, they must be close enough so that you do not see the individual dots of ink. To do this, the separation of the dots must be less than Raleigh’s criterion. Take the pupil of the eye to be 3.0 mm and the distance from the paper to the eye of 35 cm; find the minimum separation of two dots such that they cannot be resolved. How many dots per inch (dpi) does this correspond to? https://seo-videos.collegephysicsanswers.com/ch27/pe67/ed1ch27pe67.mp4 166 40 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-three-smallest-non-zero-thicknesses-soapy-water-n-133-plexiglas-if-it What are the three smallest non-zero thicknesses of soapy water (n =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe75/thumbs-ed1ch27pe75-00002.png What are the three smallest non-zero thicknesses of soapy water (n = 1.33) on Plexiglas if it appears green (constructively reflecting 520-nm light) when illuminated perpendicularly by white light? Explicitly show how you follow the steps in Problem Solving Strategies for Wave Optics. https://seo-videos.collegephysicsanswers.com/ch27/pe75/ed1ch27pe75.mp4 338 38 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2734-shows-two-glass-slides-illuminated-pure-wavelength-light-incident Figure 27.34 shows two glass slides illuminated by pure- wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe79/thumbs-ed1ch27pe79-00002.png Figure 27.34 shows two glass slides illuminated by pure- wavelength light incident perpendicularly. The top slide touches the bottom slide at one end and rests on a 0.100-mm-diameter hair at the other end, forming a wedge of air. (a) How far apart are the dark bands, if the slides are 7.50 cm long and 589-nm light is used? (b) Is there any difference if the slides are made from crown or flint glass? Explain. https://seo-videos.collegephysicsanswers.com/ch27/pe79/ed1ch27pe79.mp4 485 64 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/soap-bubble-100-nm-thick-and-illuminated-white-light-incident-45circ-its-surface A soap bubble is 100 nm thick and illuminated by white light incident… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe81/thumbs-ed1ch27pe81-00002.png A soap bubble is 100 nm thick and illuminated by white light incident at a 45° to its surface. What wavelength and color of visible light is most constructively reflected, assuming the same index of refraction as water? https://seo-videos.collegephysicsanswers.com/ch27/pe81/ed1ch27pe81.mp4 307 27 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-lightning-bolt-moves-400-c-charge-how-many-fundamental-units-charge A certain lightning bolt moves 40.0 C of charge. How many fundamental… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe04/thumbs-ed1ch18pe04-00002.png A certain lightning bolt moves 40.0 C of charge. How many fundamental units of charge \abs{q_e} is this? https://seo-videos.collegephysicsanswers.com/ch18/pe04/ed1ch18pe04.mp4 25 208 5 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-vicinity-conductor-figure-1847-given-field-was Sketch the electric field lines in the vicinity of the conductor in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe37/thumbs-ed1ch18pe10-00002.png Sketch the electric field lines in the vicinity of the conductor in Figure 18.47 given the field was originally uniform and parallel to the object's long axis. Is the resulting field small near the long side of the object? https://seo-videos.collegephysicsanswers.com/ch18/pe37/ed1ch18pe10.mp4 151 150 3 2020-06-17 yes 2020-06-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/angle-between-axes-two-polarizing-filters-450circ-how-much-does-second-filter The angle between the axes of two polarizing filters is 45.0°. By how… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe85/thumbs-ed1ch27pe85-00002.png The angle between the axes of two polarizing filters is 45.0°. By how much does the second filter reduce the intensity of the light coming through the first? https://seo-videos.collegephysicsanswers.com/ch27/pe85/ed1ch27pe85.mp4 56 121 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/save-money-making-military-aircraft-invisible-radar-inventor-decides-coat-them To save money on making military aircraft invisible to radar, an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe83/thumbs-ed1ch27pe83-00002.png To save money on making military aircraft invisible to radar, an inventor decides to coat them with a non-reflective material having an index of refraction of 1.20, which is between that of air and the surface of the plane. This, he reasons, should be much cheaper than designing Stealth bombers. (a) What thickness should the coating be to inhibit the reflection of 4.00-cm wavelength radar? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch27/pe83/ed1ch27pe83.mp4 359 14 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-will-light-reflected-diamond-be-completely-polarized At what angle will light reflected from diamond be completely… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe91/thumbs-ed1ch27pe91-00002.png At what angle will light reflected from diamond be completely polarized? https://seo-videos.collegephysicsanswers.com/ch27/pe91/ed1ch27pe91.mp4 55 30 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/scuba-diver-sees-light-reflected-waters-surface-what-angle-will-light-be A scuba diver sees light reflected from the water’s surface. At what… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe93/thumbs-ed1ch27pe93-00002.png A scuba diver sees light reflected from the water’s surface. At what angle will this light be completely polarized? https://seo-videos.collegephysicsanswers.com/ch27/pe93/ed1ch27pe93.mp4 45 16 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-if-you-have-three-polarizing-filters-second-angle-45circ-first-and-third Show that if you have three polarizing filters, with the second at an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe89/thumbs-ed1ch27pe89-00002.png Show that if you have three polarizing filters, with the second at an angle of 45° to the first and the third at an angle of 90.0° to the first, the intensity of light passed by the first will be reduced to 25.0 % of its value. (This is in contrast to having only the first and third, which reduces the intensity to zero, so that placing the second between them increases the intensity of the transmitted light.) https://seo-videos.collegephysicsanswers.com/ch27/pe89/ed1ch27pe89.mp4 187 69 5 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-reflected-556circ-window-completely-polarized-what-windows-index Light reflected at 55.6° from a window is completely polarized. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe95/thumbs-ed1ch27pe95-00002.png Light reflected at 55.6° from a window is completely polarized. What is the window’s index of refraction and the likely substance of which it is made? https://seo-videos.collegephysicsanswers.com/ch27/pe95/ed1ch27pe95.mp4 58 30 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/superposition-which-following-light-waves-may-produce-interference-fringes Superposition of which of the following light waves may produce… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap03/thumbs-ed1ch27ap03-00002.png Superposition of which of the following light waves may produce interference fringes? Select two answers. (a) Wave1 = A\_1\sin(2 \omega t)(b) Wave2 = A\_2\sin(4 \omega t)(c) Wave3 = A\_3\sin(2 \omega t + \theta)(d) Wave4 = A\_4\sin(4 \omega t + \theta) (a) Wave1 and Wave2(b) Wave2 and Wave4(c) Wave3 and Wave1(d) Wave4 and Wave3 https://seo-videos.collegephysicsanswers.com/ch27/ap03/ed1ch27ap03.mp4 61 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-thetab-brewsters-angle-light-reflected-top-interface-between-two-substances If \theta_b is Brewster’s angle for light reflected from the top of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe97/thumbs-ed1ch27pe97-00002.png If \theta_b is Brewster’s angle for light reflected from the top of an interface between two substances, and \theta_b' is Brewster’s angle for light reflected from below, prove that \theta_b + \theta_b' = 90.0°. https://seo-videos.collegephysicsanswers.com/ch27/pe97/ed1ch27pe97.mp4 225 45 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/double-slit-experiment-student-measures-maximum-and-minimum-intensities-when-two In a double slit experiment, a student measures the maximum and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap05/thumbs-ed1ch27ap05-00002.png In a double slit experiment, a student measures the maximum and minimum intensities when two waves with equal amplitudes are used. The student then doubles the amplitudes of the two waves and performs the measurements again. Which of the following will remain unchanged? (a) The intensity of the bright fringe(b) The intensity of the dark fringe(c) The difference in the intensities of consecutive bright(d) and dark fringes(e) None of the above https://seo-videos.collegephysicsanswers.com/ch27/ap05/ed1ch27ap05.mp4 55 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-put-two-pairs-polaroid-sunglasses-their-axes-angle-150circ-how-much Suppose you put on two pairs of Polaroid sunglasses with their axes… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/pe99/thumbs-ed1ch27pe99-00002.png Suppose you put on two pairs of Polaroid sunglasses with their axes at an angle of 15.0°. How much longer will it take the light to deposit a given amount of energy in your eye compared with a single pair of sunglasses? Assume the lenses are clear except for their polarizing characteristics. https://seo-videos.collegephysicsanswers.com/ch27/pe99/ed1ch27pe99.mp4 162 16 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-will-be-amplitude-central-fringe-if-amplitudes-two-waves-double-slit What will be the amplitude of the central fringe if the amplitudes of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap07/thumbs-ed1ch27ap07-00002.png What will be the amplitude of the central fringe if the amplitudes of the two waves in a double slit experiment are a and 3a? (a) 2a(b) 4a(c) 8a^2(d) 16a^2 https://seo-videos.collegephysicsanswers.com/ch27/ap07/ed1ch27ap07.mp4 33 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-cannot-be-possible-outcome-passing-white-light-through-several Which of the following cannot be a possible outcome of passing white… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap09/thumbs-ed1ch27ap09-00002.png Which of the following cannot be a possible outcome of passing white light through several evenly spaced parallel slits? (a) The central maximum will be white but the higher-order maxima will disperse into a rainbow of colors.(b) The central maximum and higher-order maxima will be of equal widths.(c) The lower wavelength components of light will have less diffraction compared to higher wavelength components for all maxima except the central one.(d) None of the above. https://seo-videos.collegephysicsanswers.com/ch27/ap09/ed1ch27ap09.mp4 68 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diffraction-pattern-formed-screen-when-light-wavelength-410-nm-passed-through A diffraction pattern is formed on a screen when light of wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap11/thumbs-ed1ch27ap11-00002.png A diffraction pattern is formed on a screen when light of wavelength 410 nm is passed through a single slit of width 1 μm. If the source light is replaced by another light of wavelength 700 nm, what should be the width of the slit so that the new light produces a pattern with the same spacing? (a) 0.6 \mu m (b) 1 \mu m (c) 1.4 \mu m (d) 1.7 \mu m https://seo-videos.collegephysicsanswers.com/ch27/ap11/ed1ch27ap11.mp4 146 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-best-describes-cause-thin-film-interference-light-reflecting Which of the following best describes the cause of thin film… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap15/thumbs-ed1ch27ap15-00002.png Which of the following best describes the cause of thin film interference? (a) Light reflecting from a medium having an index of refraction less than that of the medium in which it is traveling.(b) Light reflecting from a medium having an index of refraction greater than that of the medium in which it is traveling.(c) Light changing its wavelength and speed after reflection.(d) Light reflecting from the top and bottom surfaces of a film. https://seo-videos.collegephysicsanswers.com/ch27/ap15/ed1ch27ap15.mp4 41 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-relationship-between-width-w-central-diffraction-maximum-formed-through What is the relationship between the width (W) of the central… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap13/thumbs-ed1ch27ap13-00002.png What is the relationship between the width (W) of the central diffraction maximum formed through a circular aperture and the size (S) of the aperture? (a) W increases as S increases.(b) W decreases as S increases.(c) W can increase or decrease as S decreases.(d) W can neither increase nor decrease as S decreases. https://seo-videos.collegephysicsanswers.com/ch27/ap13/ed1ch27ap13.mp4 175 6 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-true-direction-polarization-polarized-light-wave-it Which of the following statements is true for the direction of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch27/ap17/thumbs-ed1ch27ap17-00002.png Which of the following statements is true for the direction of polarization for a polarized light wave? (a) It is parallel to the direction of propagation and perpendicular to the direction of the electric field.(b) It is perpendicular to the direction of propagation and parallel to the direction of the electric field.(c) It is parallel to the directions of propagation and the electric field.(d) It is perpendicular to the directions of propagation and the electric field. https://seo-videos.collegephysicsanswers.com/ch27/ap17/ed1ch27ap17.mp4 29 8 2018-11-30 yes 2018-11-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-describes-michelson-morley-experiment-c-speed-light Which of the following statements describes the Michelson- Morley… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/ap01/thumbs-ed1ch28ap01-00002.png Which of the following statements describes the Michelson- Morley experiment? c. (a) The speed of light is independent of the motion of the source relative to the observer. d.(b) The speed of light is different in different frames of reference.(c) The speed of light changes with changes in the observer.(d) The speed of light is dependent on the motion of the source. https://seo-videos.collegephysicsanswers.com/ch28/ap01/ed1ch28ap01.mp4 70 4 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-relativistic-doppler-effect-different-classical-doppler-effect How is the relativistic Doppler effect different from the classical… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/ap03/thumbs-ed1ch28ap03-00002.png How is the relativistic Doppler effect different from the classical Doppler effect? https://seo-videos.collegephysicsanswers.com/ch28/ap03/ed1ch28ap03.mp4 39 2 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-relativistic-kinetic-energy-becomes-same-classical-kinetic-energy-when-vc Show that relativistic kinetic energy becomes the same as classical… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/ap05/thumbs-ed1ch28ap05-00002.png Show that relativistic kinetic energy becomes the same as classical kinetic energy when v=c. https://seo-videos.collegephysicsanswers.com/ch28/ap05/ed1ch28ap05.mp4 208 2 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neutral-pi-meson-particle-can-be-created-accelerator-beams-if-one-such-particle A neutral \pi-meson is a particle that can be created by accelerator… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe05/thumbs-ed1ch28pe05-00002.png A neutral \pi-meson is a particle that can be created by accelerator beams. If one such particle lives 1.40 x 10^{-16} s as measured in the laboratory, and 0.840 x 10^{-16} s when at rest relative to an observer, what is its velocity relative to the laboratory? https://seo-videos.collegephysicsanswers.com/ch28/pe05/ed1ch28pe05.mp4 200 183 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-relativistic-effects-are-be-less-1-then-gamma-must-be-less-101-what-relative If relativistic effects are to be less than 1%, then \gamma must be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe07/thumbs-ed1ch28pe07-00002.png If relativistic effects are to be less than 1%, then \gamma must be less than 1.01. At what relative velocity is \gamma = 1.01? https://seo-videos.collegephysicsanswers.com/ch28/pe07/ed1ch28pe07.mp4 165 171 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-relative-velocity-gamma-150-b-what-relative-velocity-gamma-100 (a) At what relative velocity is \gamma = 1.50 ? (b) At what relative… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe09/thumbs-ed1ch28pe09-00002.png (a) At what relative velocity is \gamma = 1.50 ? (b) At what relative velocity is \gamma = 100? https://seo-videos.collegephysicsanswers.com/ch28/pe09/ed1ch28pe09.mp4 156 80 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-value-gamma-following-situation-earth-bound-observer-measures-239-h-have (a) Find the value of \gamma for the following situation. An… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe11/thumbs-ed1ch28pe11-00002.png (a) Find the value of \gamma for the following situation. An Earth-bound observer measures 23.9 h to have passed while signals from a high-velocity space probe indicate that 24.0 h have passed on board. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch28/pe11/ed1ch28pe11.mp4 151 57 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-fast-would-60-m-long-sports-car-have-be-going-past-you-order-it-appear-only How fast would a 6.0 m-long sports car have to be going past you in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe13/thumbs-ed1ch28pe13-00002.png How fast would a 6.0 m-long sports car have to be going past you in order for it to appear only 5.5 m long? https://seo-videos.collegephysicsanswers.com/ch28/pe13/ed1ch28pe13.mp4 103 265 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-fast-would-athlete-need-be-running-100-m-race-look-100-yd-long-b-answer (a) How fast would an athlete need to be running for a 100-m race to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe17/thumbs-ed1ch28pe17-00002.png (a) How fast would an athlete need to be running for a 100-m race to look 100 yd long? (b) Is the answer consistent with the fact that relativistic effects are difficult to observe in ordinary circumstances? Explain. https://seo-videos.collegephysicsanswers.com/ch28/pe17/ed1ch28pe17.mp4 122 93 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-spaceship-heading-directly-away-earth-0750c-can-shoot-canister-0500c Suppose a spaceship heading directly away from the Earth at 0.750c… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe21/thumbs-ed1ch28pe21-00002.png Suppose a spaceship heading directly away from the Earth at 0.750c can shoot a canister at 0.500c relative to the ship. (a) What is the velocity of the canister relative to the Earth, if it is shot directly at the Earth? (b) If it is shot directly away from the Earth? https://seo-videos.collegephysicsanswers.com/ch28/pe21/ed1ch28pe21.mp4 171 121 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-speed-light-were-only-3000-ms-jet-fighter-moving-toward-target-ground (a) Suppose the speed of light were only 3000 m/s . A jet fighter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe23/thumbs-ed1ch28pe23-00002.png (a) Suppose the speed of light were only 3000 m/s . A jet fighter moving toward a target on the ground at 800 m/s shoots bullets, each having a muzzle velocity of 1000 m/s. What are the bullets’ velocity relative to the target? (b) If the speed of light was this small, would you observe relativistic effects in everyday life? Discuss. https://seo-videos.collegephysicsanswers.com/ch28/pe23/ed1ch28pe23.mp4 133 56 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/space-probe-speeding-towards-nearest-star-moves-0250c-and-sends-radio A space probe speeding towards the nearest star moves at 0.250c and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe25/thumbs-ed1ch28pe25-00002.png A space probe speeding towards the nearest star moves at 0.250c and sends radio information at a broadcast frequency of 1.00 GHz. What frequency is received on the Earth? https://seo-videos.collegephysicsanswers.com/ch28/pe25/ed1ch28pe25.mp4 110 94 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-relative-velocity-two-spaceships-if-one-fires-missile-other-0750c-and-other What is the relative velocity of two spaceships if one fires a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe29/thumbs-ed1ch28pe29-00002.png What is the relative velocity of two spaceships if one fires a missile at the other at 0.750c and the other observes it to approach at 0.950c ? https://seo-videos.collegephysicsanswers.com/ch28/pe29/ed1ch28pe29.mp4 174 53 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-serving-tennis-ball-player-hits-ball-when-its-velocity-zero-highest-point When serving a tennis ball, a player hits the ball when its velocity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe21/thumbs-ed1ch08pe21-00002.png When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point of a vertical toss). The racquet exerts a force of 540 N on the ball for 5.00 ms, giving it a final velocity of 45.0 m/s. Using these data, find the mass of the ball. https://seo-videos.collegephysicsanswers.com/ch08/pe21/ed1ch08pe21.mp4 74 243 3.7 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-any-relative-velocity-v-between-two-observers-beam-light-projected-one Show that for any relative velocity v between two observers, a beam… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe33/thumbs-ed1ch28pe33-00002.png Show that for any relative velocity v between two observers, a beam of light projected by one directly away from the other will move away at the speed of light (provided that v is less than c, of course). https://seo-videos.collegephysicsanswers.com/ch28/pe33/ed1ch28pe33.mp4 161 22 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/highway-patrol-officer-uses-device-measures-speed-vehicles-bouncing-radar-them A highway patrol officer uses a device that measures the speed of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe31/thumbs-ed1ch28pe31-00002.png A highway patrol officer uses a device that measures the speed of vehicles by bouncing radar off them and measuring the Doppler shift. The outgoing radar has a frequency of 100 GHz and the returning echo has a frequency 15.0 kHz higher. What is the velocity of the vehicle? Note that there are two Doppler shifts in echoes. Be certain not to round off until the end of the problem, because the effect is small. https://seo-videos.collegephysicsanswers.com/ch28/pe31/ed1ch28pe31.mp4 390 80 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-velocity-electron-has-momentum-304-times-10-21-kgcdottextrmms-note-you-must What is the velocity of an electron that has a momentum of 3.04 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe39/thumbs-ed1ch28pe39-00002.png What is the velocity of an electron that has a momentum of 3.04 x 10^{-21} kg \cdot m/s ? Note that you must calculate the velocity to at least four digits to see the difference from c. https://seo-videos.collegephysicsanswers.com/ch28/pe39/ed1ch28pe39.mp4 130 149 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-rest-energy-electron-given-its-mass-911-times-10-31-kg-give-your-answer What is the rest energy of an electron, given its mass is 9.11 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe43/thumbs-ed1ch28pe43-00002.png What is the rest energy of an electron, given its mass is 9.11 x 10^{-31} kg ? Give your answer in joules and MeV. https://seo-videos.collegephysicsanswers.com/ch28/pe43/ed1ch28pe43.mp4 39 150 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-rest-energies-proton-and-neutron-two-constituents-nuclei-are-9383-and-9396 If the rest energies of a proton and a neutron (the two constituents… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe45/thumbs-ed1ch28pe45-00002.png If the rest energies of a proton and a neutron (the two constituents of nuclei) are 938.3 and 939.6 MeV respectively, what is the difference in their masses in kilograms? https://seo-videos.collegephysicsanswers.com/ch28/pe45/ed1ch28pe45.mp4 96 96 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/supernova-explosion-200-times-1030-kg-star-produces-100-times-1044-j-energy-how A supernova explosion of a 2.00 x 10^{30} kg star produces 1.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe47/thumbs-ed1ch28pe47-00002.png A supernova explosion of a 2.00 x 10^{30} kg star produces 1.00 x 10^{44} J of energy. (a) How many kilograms of mass are converted to energy in the explosion? (b) What is the ratio \dfrac{\Delta m}{m} of mass destroyed to the original mass of the star? https://seo-videos.collegephysicsanswers.com/ch28/pe47/ed1ch28pe47.mp4 68 139 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-data-table-71-calculate-amount-mass-converted-energy-fusion-100-kg (a) Using data from Table 7.1, calculate the amount of mass converted… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe49/thumbs-ed1ch28pe49-00002.png (a) Using data from Table 7.1, calculate the amount of mass converted to energy by the fusion of 1.00 kg of hydrogen. (b) What is the ratio of mass destroyed to the original mass, \dfrac{\Delta m}{m}? (c) How does this compare with \dfrac{\Delta m}{m} for the fission of 1.00 kg of uranium? https://seo-videos.collegephysicsanswers.com/ch28/pe49/ed1ch28pe49.mp4 154 36 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/muon-has-rest-mass-energy-1057-mev-and-it-decays-electron-and-massless-particle A muon has a rest mass energy of 105.7 MeV, and it decays into an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe51/thumbs-ed1ch28pe51-00002.png A muon has a rest mass energy of 105.7 MeV, and it decays into an electron and a massless particle. (a) If all the lost mass is converted into the electron’s kinetic energy, find \gamma for the electron. (b) What is the electron’s velocity? https://seo-videos.collegephysicsanswers.com/ch28/pe51/ed1ch28pe51.mp4 240 101 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-relativistic-kinetic-energy-1000-kg-car-moving-300-ms-if-speed-light (a) Calculate the relativistic kinetic energy of a 1000-kg car moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe53/thumbs-ed1ch28pe53-00002.png (a) Calculate the relativistic kinetic energy of a 1000-kg car moving at 30.0 m/s if the speed of light were only 45.0 m/ s. (b) Find the ratio of the relativistic kinetic energy to classical. https://seo-videos.collegephysicsanswers.com/ch28/pe53/ed1ch28pe53.mp4 138 57 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-kinetic-energy-mev-pi-meson-lives-140-times-10-16-s-measured-laboratory-and What is the kinetic energy in MeV of a \pi-meson that lives 1.40 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe57/thumbs-ed1ch28pe57-00002.png What is the kinetic energy in MeV of a \pi-meson that lives 1.40 x 10^{-16} s as measured in the laboratory, and 0.840 x 10^{-16} s when at rest relative to an observer, given that its rest energy is 135 MeV? https://seo-videos.collegephysicsanswers.com/ch28/pe57/ed1ch28pe57.mp4 94 95 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/beta-decay-nuclear-decay-which-electron-emitted-if-electron-given-0750-mev (a) Beta decay is nuclear decay in which an electron is emitted. If… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe55/thumbs-ed1ch28pe55-00002.png (a) Beta decay is nuclear decay in which an electron is emitted. If the electron is given 0.750 MeV of kinetic energy, what is its velocity? (b) Comment on how the high velocity is consistent with the kinetic energy as it compares to the rest mass energy of the electron. https://seo-videos.collegephysicsanswers.com/ch28/pe55/ed1ch28pe55.mp4 227 38 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-gamma-proton-having-mass-energy-9383-mev-accelerated-through-effective What is \gamma for a proton having a mass energy of 938.3 MeV… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe61/thumbs-ed1ch28pe61-00002.png What is \gamma for a proton having a mass energy of 938.3 MeV accelerated through an effective potential of 1.0 TV (teravolt) at Fermilab outside Chicago? https://seo-videos.collegephysicsanswers.com/ch28/pe61/ed1ch28pe61.mp4 118 26 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-dfracpc2mc22-gamma2-1-means-large-velocities-pc-gg-mc2-b-e-approx-pc-when (a) Show that \dfrac{(pc)^2}{(mc^2)^2} = \gamma^2 -1. This means that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe59/thumbs-ed1ch28pe59-00002.png (a) Show that \dfrac{(pc)^2}{(mc^2)^2} = \gamma^2 -1. This means that at large velocities pc \gg mc^2. (b) Is E \approx pc when \gamma = 30.0, as for the astronaut discussed in the twin paradox? https://seo-videos.collegephysicsanswers.com/ch28/pe59/ed1ch28pe59.mp4 287 43 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-data-table-71-find-mass-destroyed-when-energy-barrel-crude-oil-released-b (a) Using data from Table 7.1, find the mass destroyed when the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe63/thumbs-ed1ch28pe63-00002.png (a) Using data from Table 7.1, find the mass destroyed when the energy in a barrel of crude oil is released. (b) Given these barrels contain 200 liters and assuming the density of crude oil is 750 kg/m ^3 , what is the ratio of mass destroyed to original mass, \dfrac{\Delta m}{m}? https://seo-videos.collegephysicsanswers.com/ch28/pe63/ed1ch28pe63.mp4 127 14 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/van-de-graaff-accelerator-utilizes-500-mv-potential-difference-accelerate A Van de Graaff accelerator utilizes a 50.0 MV potential difference… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe65/thumbs-ed1ch28pe65-00002.png A Van de Graaff accelerator utilizes a 50.0 MV potential difference to accelerate charged particles such as protons. (a) What is the velocity of a proton accelerated by such a potential? (b) An electron? https://seo-videos.collegephysicsanswers.com/ch28/pe65/ed1ch28pe65.mp4 279 28 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nuclear-power-plant-converts-energy-nuclear-fission-electricity-efficiency-350 (a) A nuclear power plant converts energy from nuclear fission into… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe67/thumbs-ed1ch28pe67-00002.png (a) A nuclear power plant converts energy from nuclear fission into electricity with an efficiency of 35.0%. How much mass is destroyed in one year to produce a continuous 1000 MW of electric power? (b) Do you think it would be possible to observe this mass loss if the total mass of the fuel is 10^4 kg ? https://seo-videos.collegephysicsanswers.com/ch28/pe67/ed1ch28pe67.mp4 249 71 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sun-produces-energy-rate-400-times-1026-kg-fusion-hydrogen-how-many-kilograms The Sun produces energy at a rate of 4.00 x 10^{26} kg by the fusion… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe69/thumbs-ed1ch28pe69-00002.png The Sun produces energy at a rate of 4.00 x 10^{26} kg by the fusion of hydrogen. (a) How many kilograms of hydrogen undergo fusion each second? (b) If the Sun is 90.0% hydrogen and half of this can undergo fusion before the Sun changes character, how long could it produce energy at its current rate? (c) How many kilograms of mass is the Sun losing per second? (d) What fraction of its mass will it have lost in the time found in part (b)? https://seo-videos.collegephysicsanswers.com/ch28/pe69/ed1ch28pe69.mp4 358 79 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/visible-spectrum-sunlight-shows-range-colors-red-violet-spectrum-has-numerous The visible spectrum of sunlight shows a range of colors from red to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap01/thumbs-ed1ch29ap01-00002.png The visible spectrum of sunlight shows a range of colors from red to violet. This spectrum has numerous dark lines spread throughout it. Noting that the surface of the Sun is much cooler than the interior, so that the surface is comparable to a cool gas through which light passes, which of the following statements correctly explains the dark lines? (a) The cooler, denser surface material scatters certain wavelengths of light, forming dark lines.(b) The atoms at the surface absorb certain wavelengths of light, causing the dark lines at those wavelengths.(c) The atoms in the Sun’s interior emit light of specific wavelength, so that parts of the spectrum are dark.(d) The atoms at the surface are excited by the high interior temperatures, so that the dark lines are merely wavelengths at which those atoms don’t emit energy. https://seo-videos.collegephysicsanswers.com/ch29/ap01/ed1ch29ap01.mp4 28 2 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-which-compton-effect-observed-gamma-ray-photon-wavelength-500-times In an experiment in which the Compton effect is observed, a “gamma… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/ap09/thumbs-ed1ch29ap09-00002.png In an experiment in which the Compton effect is observed, a “gamma ray” photon with a wavelength of 5.00 x 10^{-13} m scatters from an electron. If the change in the electron energy is 1.60 x 10^{-15} J , what is the wavelength of the photon after the collision with the electron? (a) 4.95 x 10^{-13} m (b) 4.98 x 10^{-13} m (c) 5.02 x 10^{-13} m (d) 5.05 x 10^{-13} m https://seo-videos.collegephysicsanswers.com/ch29/ap09/ed1ch29ap09.mp4 191 4 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-longest-wavelength-photon-can-eject-electron-potassium-given-binding-energy Find the longest-wavelength photon that can eject an electron from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe05/thumbs-ed1ch29pe05-00002.png Find the longest-wavelength photon that can eject an electron from potassium, given that the binding energy is 2.24 eV. Is this visible EM radiation? https://seo-videos.collegephysicsanswers.com/ch29/pe05/ed1ch29pe05.mp4 127 248 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-binding-energy-ev-electrons-aluminum-if-longest-wavelength-photon-can Calculate the binding energy in eV of electrons in aluminum, if the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe07/thumbs-ed1ch29pe07-00002.png Calculate the binding energy in eV of electrons in aluminum, if the longest-wavelength photon that can eject them is 304 nm. https://seo-videos.collegephysicsanswers.com/ch29/pe07/ed1ch29pe07.mp4 109 188 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/uv-radiation-having-wavelength-120-nm-falls-gold-metal-which-electrons-are-bound UV radiation having a wavelength of 120 nm falls on gold metal, to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe09/thumbs-ed1ch29pe09-00002.png UV radiation having a wavelength of 120 nm falls on gold metal, to which electrons are bound by 4.82 eV. What is the maximum kinetic energy of the ejected photoelectrons? https://seo-videos.collegephysicsanswers.com/ch29/pe09/ed1ch29pe09.mp4 94 117 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/uv-radiation-having-300-nm-wavelength-falls-uranium-metal-ejecting-0500-ev UV radiation having a 300-nm wavelength falls on uranium metal,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe11/thumbs-ed1ch29pe11-00002.png UV radiation having a 300-nm wavelength falls on uranium metal, ejecting 0.500-eV electrons. What is the binding energy of electrons to uranium metal? https://seo-videos.collegephysicsanswers.com/ch29/pe11/ed1ch29pe11.mp4 94 74 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-wavelength-photons-eject-0100-ev-electrons-potassium-given-binding-energy Find the wavelength of photons that eject 0.100-eV electrons from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe13/thumbs-ed1ch29pe13-00002.png Find the wavelength of photons that eject 0.100-eV electrons from potassium, given that the binding energy is 2.24 eV. Are these photons visible? https://seo-videos.collegephysicsanswers.com/ch29/pe13/ed1ch29pe13.mp4 112 88 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/photoelectrons-material-binding-energy-271-ev-are-ejected-420-nm-photons-once Photoelectrons from a material with a binding energy of 2.71 eV are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe15/thumbs-ed1ch29pe15-00002.png Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 420-nm photons. Once ejected, how long does it take these electrons to travel 2.50 cm to a detection device? https://seo-videos.collegephysicsanswers.com/ch29/pe15/ed1ch29pe15.mp4 187 123 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-binding-energy-electrons-material-which-400-ev-electrons-are-ejected-400-nm (a) What is the binding energy of electrons to a material from which… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe19/thumbs-ed1ch29pe19-00002.png (a) What is the binding energy of electrons to a material from which 4.00-eV electrons are ejected by 400-nm EM radiation? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch29/pe19/ed1ch29pe19.mp4 104 14 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-distance-electrostatic-force-between-two-protons-equal-weight-one-proton At what distance is the electrostatic force between two protons equal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe22/thumbs-ed1ch18pe36-00002.png At what distance is the electrostatic force between two protons equal to the weight of one proton? https://seo-videos.collegephysicsanswers.com/ch18/pe22/ed1ch18pe36.mp4 83 112 5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-long-distance-charge-distributions-shown-figure-1834 Sketch the electric field lines a long distance from the charge… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe34/thumbs-ed1ch18pe48-00002.png Sketch the electric field lines a long distance from the charge distributions shown in Figure 18.34 (a) and (b) https://seo-videos.collegephysicsanswers.com/ch18/pe34/ed1ch18pe48.mp4 61 100 5 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-values-table-71-how-many-dna-molecules-could-be-broken-energy-carried Using values from Table 7.1, how many DNA molecules could be broken… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe26/thumbs-ed1ch07pe26-00002.png Using values from Table 7.1, how many DNA molecules could be broken by the energy carried by a single electron in the beam of an old-fashioned TV tube? (These electrons were not dangerous in themselves, but they did create dangerous x rays. Later model tube TVs had shielding that absorbed x rays before they escaped and exposed viewers.) https://seo-videos.collegephysicsanswers.com/ch07/pe26/ed1ch07pe26.mp4 42 233 4 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-100-ev-photon-b-find-its-frequency-hertz-c-identify-type-em (a) What is the wavelength of a 1.00-eV photon? (b) Find its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe23/thumbs-ed1ch29pe23-00002.png (a) What is the wavelength of a 1.00-eV photon? (b) Find its frequency in hertz. (c) Identify the type of EM radiation. https://seo-videos.collegephysicsanswers.com/ch29/pe23/ed1ch29pe23.mp4 124 148 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-three-digit-accuracy-h-414-times-10-15-evcdot-textrms-stated-text Prove that, to three-digit accuracy, h = 4.14 x 10^{-15} eV \cdot s ,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe27/thumbs-ed1ch29pe27-00002.png Prove that, to three-digit accuracy, h = 4.14 x 10^{-15} eV \cdot s , as stated in the text. https://seo-videos.collegephysicsanswers.com/ch29/pe27/ed1ch29pe27.mp4 22 10 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-statement-text-range-photon-energies-visible-light-163-326-ev-given Confirm the statement in the text that the range of photon energies… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe25/thumbs-ed1ch29pe25-00002.png Confirm the statement in the text that the range of photon energies for visible light is 1.63 to 3.26 eV, given that the range of visible wavelengths is 380 to 760 nm. https://seo-videos.collegephysicsanswers.com/ch29/pe25/ed1ch29pe25.mp4 111 131 3.3 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-accelerating-voltage-x-ray-tube-produces-x-rays-shortest-wavelength-00103 What is the accelerating voltage of an x-ray tube that produces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe29/thumbs-ed1ch29pe29-00002.png What is the accelerating voltage of an x-ray tube that produces x-rays with a shortest wavelength of 0.0103 nm? https://seo-videos.collegephysicsanswers.com/ch29/pe29/ed1ch29pe29.mp4 135 142 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-photons-second-are-emitted-antenna-microwave-oven-if-its-power-output How many photons per second are emitted by the antenna of a microwave… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe31/thumbs-ed1ch29pe31-00002.png How many photons per second are emitted by the antenna of a microwave oven, if its power output is 1.00 kW at a frequency of 2560 MHz? https://seo-videos.collegephysicsanswers.com/ch29/pe31/ed1ch29pe31.mp4 120 154 3.7 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-electric-field-lines-vicinity-two-opposite-charges-where-negative-charge Sketch the electric field lines in the vicinity of two opposite… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe36/thumbs-ed1ch18pe50-00002.png Sketch the electric field lines in the vicinity of two opposite charges, where the negative charge is three times greater in magnitude than the positive. (See Figure 18.54 for a similar situation). https://seo-videos.collegephysicsanswers.com/ch18/pe36/ed1ch18pe50.mp4 173 176 3.7 2020-06-19 yes 2020-06-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-power-output-650-khz-radio-station-500-kw-how-many-photons-second-are (a) If the power output of a 650-kHz radio station is 50.0 kW, how… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe33/thumbs-ed1ch29pe33-00002.png (a) If the power output of a 650-kHz radio station is 50.0 kW, how many photons per second are produced? (b) If the radio waves are broadcast uniformly in all directions, find the number of photons per second per square meter at a distance of 100 km. Assume no reflection from the ground or absorption by the air. https://seo-videos.collegephysicsanswers.com/ch29/pe33/ed1ch29pe33.mp4 213 100 3.3 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-momentum-00100-nm-wavelength-photon-could-detect-details-atom-b-what-its (a) What is the momentum of a 0.0100-nm-wavelength photon that could… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe39/thumbs-ed1ch29pe39-00002.png (a) What is the momentum of a 0.0100-nm-wavelength photon that could detect details of an atom? (b) What is its energy in MeV? https://seo-videos.collegephysicsanswers.com/ch29/pe39/ed1ch29pe39.mp4 62 75 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-away-must-you-be-650-khz-radio-station-power-500-kw-there-be-only-one (a) How far away must you be from a 650-kHz radio station with power… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe35/thumbs-ed1ch29pe35-00002.png (a) How far away must you be from a 650-kHz radio station with power 50.0 kW for there to be only one photon per second per square meter? Assume no reflections or absorption, as if you were in deep outer space. (b) Discuss the implications for detecting intelligent life in other solar systems by detecting their radio broadcasts. https://seo-videos.collegephysicsanswers.com/ch29/pe35/ed1ch29pe35.mp4 213 28 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gamma-ray-photon-has-momentum-800times-10-21-kgcdot-textrmms-what-its-wavelength (a) A \gamma-ray photon has a momentum of 8.00 x 10^{-21} kg \cdot… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe41/thumbs-ed1ch29pe41-00002.png (a) A \gamma-ray photon has a momentum of 8.00 x 10^{-21} kg \cdot m/s . What is its wavelength? (b) Calculate its energy in MeV. https://seo-videos.collegephysicsanswers.com/ch29/pe41/ed1ch29pe41.mp4 94 83 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-momentum-photon-having-wavelength-100-nm-b-find-velocity-electron (a) Calculate the momentum of a photon having a wavelength of 10.0 nm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe43/thumbs-ed1ch29pe43-00002.png (a) Calculate the momentum of a photon having a wavelength of 10.0 nm (b) Find the velocity of an electron having the same momentum. (c) What is the kinetic energy of the electron, and how does it compare with that of the photon? https://seo-videos.collegephysicsanswers.com/ch29/pe43/ed1ch29pe43.mp4 197 75 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-velocity-will-electron-have-wavelength-100-m At what velocity will an electron have a wavelength of 1.00 m? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe49/thumbs-ed1ch29pe49-00002.png At what velocity will an electron have a wavelength of 1.00 m? https://seo-videos.collegephysicsanswers.com/ch29/pe49/ed1ch29pe49.mp4 45 235 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-momentum-100-kev-x-ray-photon-b-find-equivalent-velocity-neutron-same (a) Find the momentum of a 100-keV x-ray photon. (b) Find the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe45/thumbs-ed1ch29pe45-00002.png (a) Find the momentum of a 100-keV x-ray photon. (b) Find the equivalent velocity of a neutron with the same momentum. (c) What is the neutron’s kinetic energy in keV? https://seo-videos.collegephysicsanswers.com/ch29/pe45/ed1ch29pe45.mp4 126 106 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-wavelength-proton-moving-100-speed-light Find the wavelength of a proton moving at 1.00% of the speed of light. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe53/thumbs-ed1ch29pe53-00002.png Find the wavelength of a proton moving at 1.00% of the speed of light. https://seo-videos.collegephysicsanswers.com/ch29/pe53/ed1ch29pe53.mp4 34 54 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/frequencies-which-ear-responds-vary-factor-103-suppose-speedometer-your-car The frequencies to which the ear responds vary by a factor of 10^3 .… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe56/thumbs-ed1ch17pe56-00002.png The frequencies to which the ear responds vary by a factor of 10^3 . Suppose the speedometer on your car measured speeds differing by the same factor of 10^3, and the greatest speed it reads is 90.0 mi/h. What would be the slowest nonzero speed it could read? https://seo-videos.collegephysicsanswers.com/ch17/pe56/ed1ch17pe56.mp4 37 14 2020-06-22 yes 2020-06-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-electric-field-strength-near-100-cm-diameter-conducting-sphere-has-100 (a) Calculate the electric field strength near a 10.0 cm diameter… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe64/thumbs-ed1ch18pe64-00002.png (a) Calculate the electric field strength near a 10.0 cm diameter conducting sphere that has 1.00 C of excess charge on it. (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch18/pe64/ed1ch18pe64.mp4 91 14 2 2020-06-23 yes 2020-06-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-velocity-neutron-has-600-fm-wavelength-about-size-nucleus-assume-neutron (a) Find the velocity of a neutron that has a 6.00-fm wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe55/thumbs-ed1ch29pe55-00002.png (a) Find the velocity of a neutron that has a 6.00-fm wavelength (about the size of a nucleus). Assume the neutron is nonrelativistic. (b) What is the neutron’s kinetic energy in MeV? https://seo-videos.collegephysicsanswers.com/ch29/pe55/ed1ch29pe55.mp4 88 63 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-kinetic-energy-electron-tem-having-00100-nm-wavelength What is the kinetic energy of an electron in a TEM having a 0.0100-nm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe57/thumbs-ed1ch29pe57-00002.png What is the kinetic energy of an electron in a TEM having a 0.0100-nm wavelength? https://seo-videos.collegephysicsanswers.com/ch29/pe57/ed1ch29pe57.mp4 94 90 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/velocity-proton-emerging-van-de-graaff-accelerator-250-speed-light-what-protons The velocity of a proton emerging from a Van de Graaff accelerator is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe59/thumbs-ed1ch29pe59-00002.png The velocity of a proton emerging from a Van de Graaff accelerator is 25.0% of the speed of light. (a) What is the proton’s wavelength? (b) What is its kinetic energy, assuming it is nonrelativistic? (c) What was the equivalent voltage through which it was accelerated? https://seo-videos.collegephysicsanswers.com/ch29/pe59/ed1ch29pe59.mp4 87 50 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-it-nonrelativistic-calculate-velocity-electron-0100-fm-wavelength-small (a) Assuming it is nonrelativistic, calculate the velocity of an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe61/thumbs-ed1ch29pe61-00002.png (a) Assuming it is nonrelativistic, calculate the velocity of an electron with a 0.100-fm wavelength (small enough to detect details of a nucleus). (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch29/pe61/ed1ch29pe61.mp4 70 12 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/velocity-proton-accelerator-known-accuracy-0250-speed-light-could-be-small The velocity of a proton in an accelerator is known to an accuracy of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe65/thumbs-ed1ch29pe65-00002.png The velocity of a proton in an accelerator is known to an accuracy of 0.250% of the speed of light. (This could be small compared with its velocity.) What is the smallest possible uncertainty in its position? https://seo-videos.collegephysicsanswers.com/ch29/pe65/ed1ch29pe65.mp4 78 73 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-position-chlorine-ion-membrane-measured-accuracy-100-mm-what-its-minimum (a) If the position of a chlorine ion in a membrane is measured to an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe63/thumbs-ed1ch29pe63-00002.png (a) If the position of a chlorine ion in a membrane is measured to an accuracy of 1.00 μm , what is its minimum uncertainty in velocity, given its mass is 5.86 x 10^{-26} kg (b) If the ion has this velocity, what is its kinetic energy in eV, and how does this compare with typical molecular binding energies? https://seo-videos.collegephysicsanswers.com/ch29/pe63/ed1ch29pe63.mp4 147 100 4 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-energy-short-lived-nuclear-excited-state-has-uncertainty-20-ev-due-its The decay energy of a short-lived nuclear excited state has an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe69/thumbs-ed1ch29pe69-00002.png The decay energy of a short-lived nuclear excited state has an uncertainty of 2.0 eV due to its short lifetime. What is the smallest lifetime it can have? https://seo-videos.collegephysicsanswers.com/ch29/pe69/ed1ch29pe69.mp4 45 32 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lifetime-highly-unstable-nucleus-10-20-s-what-smallest-uncertainty-its-decay (a) The lifetime of a highly unstable nucleus is 10−20 s . What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe67/thumbs-ed1ch29pe67-00002.png (a) The lifetime of a highly unstable nucleus is 10−20 s . What is the smallest uncertainty in its decay energy? (b) Compare this with the rest energy of an electron. https://seo-videos.collegephysicsanswers.com/ch29/pe67/ed1ch29pe67.mp4 93 66 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/derive-approximate-form-heisenbergs-uncertainty-principle-energy-and-time-delta Derive the approximate form of Heisenberg’s uncertainty principle for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe71/thumbs-ed1ch29pe71-00002.png Derive the approximate form of Heisenberg’s uncertainty principle for energy and time, \Delta E \Delta t \approx h, using the following arguments: Since the position of a particle is uncertain by \Delta x \approx \lambda, where \lambda is the wavelength of the photon used to examine it, there is an uncertainty in the time the photon takes to traverse \Delta x . Furthermore, the photon has an energy related to its wavelength, and it can transfer some or all of this energy to the object being examined. Thus the uncertainty in the energy of the object is also related to \lambda. Find \Delta t and \Delta E ; then multiply them to give the approximate uncertainty principle. https://seo-videos.collegephysicsanswers.com/ch29/pe71/ed1ch29pe71.mp4 128 8 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-microscope-produces-electrons-200-pm-wavelength-if-these-are-passed An electron microscope produces electrons with a 2.00-pm wavelength.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe73/thumbs-ed1ch29pe73-00002.png An electron microscope produces electrons with a 2.00-pm wavelength. If these are passed through a 1.00-nm single slit, at what angle will the first diffraction minimum be found? https://seo-videos.collegephysicsanswers.com/ch29/pe73/ed1ch29pe73.mp4 89 26 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wrecking-yard-inventor-wants-pick-cars-charging-0400-m-diameter-ball-and A wrecking yard inventor wants to pick up cars by charging a 0.400 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe66/thumbs-ed1ch18pe66-00002.png A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car. If a car has a 1000 kg mass and the ball is to be able to lift it from a distance of 1.00 m: (a) What minimum charge must be used? (b) What is the electric field near the surface of the ball? (c) Why are these results unreasonable? (d) Which premise or assumption is responsible? https://seo-videos.collegephysicsanswers.com/ch18/pe66/ed1ch18pe66.mp4 257 13 3 2020-06-23 yes 2020-06-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/its-high-power-setting-microwave-oven-produces-900-w-2560-mhz-microwaves-how On its high power setting, a microwave oven produces 900 W of 2560… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe75/thumbs-ed1ch29pe75-00002.png On its high power setting, a microwave oven produces 900 W of 2560 MHz microwaves. (a) How many photons per second is this? (b) How many photons are required to increase the temperature of a 0.500-kg mass of pasta by 45.0 C ° , assuming a specific heat of 0.900 kcal/(kg \cdot C ° ) ? Neglect all other heat transfer. (c) How long must the microwave operator wait for their pasta to be ready? https://seo-videos.collegephysicsanswers.com/ch29/pe75/ed1ch29pe75.mp4 240 36 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-microscope-passes-100-pm-wavelength-electrons-through-circular-aperture An electron microscope passes 1.00-pm-wavelength electrons through a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe79/thumbs-ed1ch29pe79-00002.png An electron microscope passes 1.00-pm-wavelength electrons through a circular aperture 2.00 \mu m in diameter. What is the angle between two just-resolvable point sources for this microscope? https://seo-videos.collegephysicsanswers.com/ch29/pe79/ed1ch29pe79.mp4 53 9 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-lambda-electron-emerging-stanford-linear-accelerator-total-energy-500-gev-b (a) What is \lambda for an electron emerging from the Stanford Linear… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe77/thumbs-ed1ch29pe77-00002.png (a) What is \lambda for an electron emerging from the Stanford Linear Accelerator with a total energy of 50.0 GeV? (b) Find its momentum. (c) What is the electron’s wavelength? https://seo-videos.collegephysicsanswers.com/ch29/pe77/ed1ch29pe77.mp4 171 16 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-separation-between-double-slits-produces-second-order-minimum-450circ-650 (a) What is the separation between double slits that produces a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe81/thumbs-ed1ch29pe81-00002.png (a) What is the separation between double slits that produces a second-order minimum at 45.0° for 650-nm light? (b) What slit separation is needed to produce the same pattern for 1.00-keV protons. https://seo-videos.collegephysicsanswers.com/ch29/pe81/ed1ch29pe81.mp4 251 20 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-problem-x-rays-they-are-not-sensed-calculate-temperature-increase-researcher One problem with x-rays is that they are not sensed. Calculate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe83/thumbs-ed1ch29pe83-00002.png One problem with x-rays is that they are not sensed. Calculate the temperature increase of a researcher exposed in a few seconds to a nearly fatal accidental dose of x-rays under the following conditions. The energy of the x-ray photons is 200 keV, and 4.00 x 10^{13} of them are absorbed per kilogram of tissue, the specific heat of which is 0.830 kcal/(kg \cdot C ° ) . (Note that medical diagnostic x-ray machines cannot produce an intensity this great.) https://seo-videos.collegephysicsanswers.com/ch29/pe83/ed1ch29pe83.mp4 161 16 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/momentum-light-exactly-reversed-when-reflected-straight-back-mirror-assuming The momentum of light is exactly reversed when reflected straight… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch29/pe85/thumbs-ed1ch29pe85-00002.png The momentum of light is exactly reversed when reflected straight back from a mirror, assuming negligible recoil of the mirror. Thus the change in momentum is twice the photon momentum. Suppose light of intensity 1.00 kW/m ^2 reflects from a mirror of area 2.00 m ^2 . (a) Calculate the energy reflected in 1.00 s. (b) What is the momentum imparted to the mirror? (c) Using the most general form of Newton’s second law, what is the force on the mirror? (d) Does the assumption of no mirror recoil seem reasonable? https://seo-videos.collegephysicsanswers.com/ch29/pe85/ed1ch29pe85.mp4 189 12 5 2019-02-07 yes 2019-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-has-initial-velocity-500times-106textrm-ms-uniform-200times-105textrm-0 An electron has an initial velocity of 5.00 x 10^{6} m/s in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe58/thumbs-ed1ch18pe58-00002.png An electron has an initial velocity of 5.00 x 10^{6} m/s in a uniform 2.00 x 10^{5} N/C strength electric field. The field accelerates the electron in the direction opposite to its initial velocity. (a) What is the direction of the electric field? (b) How far does the electron travel before coming to rest? (c) How long does it take the electron to come to rest? (d) What is the electron's velocity when it returns to its starting point? https://seo-videos.collegephysicsanswers.com/ch18/pe58/ed1ch18pe58.mp4 316 110 4.7 2020-06-23 yes 2020-06-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/experiment-three-microscopic-latex-spheres-are-sprayed-chamber-and-become In an experiment, three microscopic latex spheres are sprayed into a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap01/thumbs-ed1ch30ap01-00002.png In an experiment, three microscopic latex spheres are sprayed into a chamber and become charged with +3e, +5e, and −3e, respectively. Later, all three spheres collide simultaneously and then separate. Which of the following are possible values for the final charges on the spheres? Select two answers. (a) +4e, -4e, +5e(b) -4e, +4.5e, +4.5e(c) +5e, -8e, +7e(d) +6e, +6e, -7e https://seo-videos.collegephysicsanswers.com/ch30/ap01/ed1ch30ap01.mp4 64 2 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ground-state-certain-type-atom-has-energy-eo-what-wavelength-photon-enough-0 The ground state of a certain type of atom has energy –E\_o. What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap05/thumbs-ed1ch30ap05-00002.png The ground state of a certain type of atom has energy –E\_o. What is the wavelength of a photon with enough energy to ionize an atom in the ground state and give the ejected electron a kinetic energy of 2E\_o? (a) \dfrac{hc}{3E\_o}(b) \dfrac{hc}{2E\_o}(c) \dfrac{hc}{E\_o}(d) \dfrac{2hc}{E\_o} https://seo-videos.collegephysicsanswers.com/ch30/ap05/ed1ch30ap05.mp4 52 2 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sample-hydrogen-gas-confined-tube-initially-room-temperature-gas-heated-observer A sample of hydrogen gas confined to a tube is initially at room… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/ap07/thumbs-ed1ch30ap07-00002.png A sample of hydrogen gas confined to a tube is initially at room temperature. As the gas is heated, the observer notices that the gas begins to glow with a pale pink color. Careful study of the spectrum shows that the light spectrum is not continuous. Instead, the hydrogen gas is only emitting visible wavelength photons of four specific colors, which combine to form the overall color to the human eye. What is the best way to explain this behavior? (a) As the gas heats up, atoms have more and more collisions and close approaches, so frictional heating causes the gas to glow.(b) As the gas heats up, the electrons within the hydrogen atoms are excited to high energy levels. As the electrons transition to lower energies, they emit light of specific colors.(c) As the gas heats up, more and more collisions occur, and the energy lost in these inelastic collisions is converted into light.(d) As the gas heats up, the turbulence of the gas within the tube causes friction between the gas and the walls of the container, causing the gas to glow. https://seo-videos.collegephysicsanswers.com/ch30/ap07/ed1ch30ap07.mp4 39 2 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-apart-are-two-conducting-plates-have-electric-field-strength-450times How far apart are two conducting plates that have an electric field… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe16/thumbs-ed1ch19pe16-00002.png How far apart are two conducting plates that have an electric field strength of 4.50 x 10^{3} V/m between them, if their potential difference is 15.0 kV? https://seo-videos.collegephysicsanswers.com/ch19/pe16/ed1ch19pe16.mp4 39 216 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/singly-charged-gas-ions-are-accelerated-rest-through-voltage-130-v-what Singly charged gas ions are accelerated from rest through a voltage… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe04/thumbs-ed1ch19pe04-00002.png Singly charged gas ions are accelerated from rest through a voltage of 13.0 V. At what temperature will the average kinetic energy of gas molecules be the same as that given these ions? https://seo-videos.collegephysicsanswers.com/ch19/pe04/ed1ch19pe04.mp4 101 178 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/look-values-quantities-ab-dfrach24pi2mekqe2-and-verify-bohr-radius-ab-0529times Look up the values of the quantities in a_B =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe09/thumbs-ed1ch30pe09-00002.png Look up the values of the quantities in a_B = \dfrac{h^2}{4\pi^2m_ekq_e^2}, and verify that the Bohr radius a_B is 0.529 x 10^{-10} m . https://seo-videos.collegephysicsanswers.com/ch30/pe09/ed1ch30pe09.mp4 24 59 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/energy-not-utilized-work-or-heat-transfer-converted-chemical-energy-body-fat Energy that is not utilized for work or heat transfer is converted to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe48/thumbs-ed1ch07pe48-00002.png Energy that is not utilized for work or heat transfer is converted to the chemical energy of body fat containing about 39 kJ/g. How many grams of fat will you gain if you eat 10,000 kJ (about 2500 kcal) one day and do nothing but sit relaxed for 16.0 h and sleep for the other 8.00 h? Use data from Table 7.5 for the energy consumption rates of these activities. https://seo-videos.collegephysicsanswers.com/ch07/pe48/ed1ch07pe48.mp4 140 121 3.7 2020-01-15 yes 2020-01-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/millikans-oil-drop-experiment-one-looks-small-oil-drop-held-motionless-between In Millikan’s oil-drop experiment, one looks at a small oil drop held… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe05/thumbs-ed1ch30pe05-00002.png In Millikan’s oil-drop experiment, one looks at a small oil drop held motionless between two plates. Take the voltage between the plates to be 2033 V, and the plate separation to be 2.00 cm. The oil drop (of density 0.81 g/cm ^3) has a diameter of 4.0 x 10^{-6} m . Find the charge on the drop, in terms of electron units. https://seo-videos.collegephysicsanswers.com/ch30/pe05/ed1ch30pe05.mp4 203 207 4.7 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculating-its-wavelength-show-first-line-lyman-series-uv-radiation By calculating its wavelength, show that the first line in the Lyman… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe07/thumbs-ed1ch30pe07-00002.png By calculating its wavelength, show that the first line in the Lyman series is UV radiation. https://seo-videos.collegephysicsanswers.com/ch30/pe07/ed1ch30pe07.mp4 114 310 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-efficiency-subject-treadmill-who-puts-out-work-rate-100-w-while-consuming What is the efficiency of a subject on a treadmill who puts out work… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe50/thumbs-ed1ch07pe50-00002.png What is the efficiency of a subject on a treadmill who puts out work at the rate of 100 W while consuming oxygen at the rate of 2.00 L/min? (Hint: See Table 7.5.) https://seo-videos.collegephysicsanswers.com/ch07/pe50/ed1ch07pe50.mp4 44 74 2020-01-18 yes 2020-01-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/swimmer-shown-figure-743-exerts-average-horizontal-backward-force-800-n-his-arm The swimmer shown in Figure 7.43 exerts an average horizontal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe56/thumbs-ed1ch07pe56-00002.png The swimmer shown in Figure 7.43 exerts an average horizontal backward force of 80.0 N with his arm during each 1.80 m long stroke. (a) What is his work output in each stroke? (b) Calculate the power output of his arms if he does 120 strokes per minute. https://seo-videos.collegephysicsanswers.com/ch07/pe56/ed1ch07pe56.mp4 53 73 4.7 2020-01-18 yes 2020-01-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-radius-hydrogen-atom-n-2-state-according-bohrs-theory Find the radius of a hydrogen atom in the n = 2 state according to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe13/thumbs-ed1ch30pe13-00002.png Find the radius of a hydrogen atom in the n = 2 state according to Bohr’s theory. https://seo-videos.collegephysicsanswers.com/ch30/pe13/ed1ch30pe13.mp4 42 106 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-kj-used-550-kg-woman-who-does-50-deep-knee-bends-which-her (a) Calculate the energy in kJ used by a 55.0-kg woman who does 50… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe54/thumbs-ed1ch07pe54-00002.png (a) Calculate the energy in kJ used by a 55.0-kg woman who does 50 deep knee bends in which her center of mass is lowered and raised 0.400 m. (She does work in both directions.) You may assume her efficiency is 20%. (b) What is the average power consumption rate in watts if she does this in 3.00 min? https://seo-videos.collegephysicsanswers.com/ch07/pe54/ed1ch07pe54.mp4 160 93 3 2020-01-18 yes 2020-01-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-hydrogen-atom-has-its-electron-n-4-state-how-much-energy-ev-needed-ionize-it If a hydrogen atom has its electron in the n = 4 state, how much… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe11/thumbs-ed1ch30pe11-00002.png If a hydrogen atom has its electron in the n = 4 state, how much energy in eV is needed to ionize it? https://seo-videos.collegephysicsanswers.com/ch30/pe11/ed1ch30pe11.mp4 77 219 3.7 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/awe-inspiring-great-pyramid-cheops-was-built-more-4500-years-ago-its-square-base The awe-inspiring Great Pyramid of Cheops was built more than 4500… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe58/thumbs-ed1ch07pe58-00002.png The awe-inspiring Great Pyramid of Cheops was built more than 4500 years ago. Its square base, originally 230 m on a side, covered 13.1 acres, and it was 146 m high, with a mass of about 7 x 10^{9} kg . (The pyramid’s dimensions are slightly different today due to quarrying and some sagging.) Historians estimate that 20,000 workers spent 20 years to construct it, working 12-hour days, 330 days per year. (a) Calculate the gravitational potential energy stored in the pyramid, given its center of mass is at one-fourth its height. (b) Only a fraction of the workers lifted blocks; most were involved in support services such as building ramps (see Figure 7.44), bringing food and water, and hauling blocks to the site. Calculate the efficiency of the workers who did the lifting, assuming there were 1000 of them and they consumed food energy at the rate of 300 kcal/h. What does your answer imply about how much of their work went into block-lifting, versus how much work went into friction and lifting and lowering their own bodies? (c) Calculate the mass of food that had to be supplied each day, assuming that the average worker required 3600 kcal per day and that their diet was 5% protein, 60% carbohydrate, and 35% fat. (These proportions neglect the mass of bulk and nondigestible materials consumed.) https://seo-videos.collegephysicsanswers.com/ch07/pe58/ed1ch07pe58.mp4 238 40 3.7 2020-01-18 yes 2020-01-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-smallest-wavelength-line-balmer-series-it-visible-part-spectrum What is the smallest-wavelength line in the Balmer series? Is it in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe15/thumbs-ed1ch30pe15-00002.png What is the smallest-wavelength line in the Balmer series? Is it in the visible part of the spectrum? https://seo-videos.collegephysicsanswers.com/ch30/pe15/ed1ch30pe15.mp4 104 203 4 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/very-large-forces-are-produced-joints-when-person-jumps-some-height-ground Very large forces are produced in joints when a person jumps from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe52/thumbs-ed1ch07pe52-00002.png Very large forces are produced in joints when a person jumps from some height to the ground. (a) Calculate the magnitude of the force produced if an 80.0-kg person jumps from a 0.600–m-high ledge and lands stiffly, compressing joint material 1.50 cm as a result. (Be certain to include the weight of the person.) (b) In practice the knees bend almost involuntarily to help extend the distance over which you stop. Calculate the magnitude of the force produced if the stopping distance is 0.300 m. (c) Compare both forces with the weight of the person. https://seo-videos.collegephysicsanswers.com/ch07/pe52/ed1ch07pe52.mp4 294 136 5 2020-01-18 yes 2020-01-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/body-fat-metabolized-supplying-930-kcalg-when-dietary-intake-less-needed-fuel Body fat is metabolized, supplying 9.30 kcal/g, when dietary intake… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe66/thumbs-ed1ch07pe66-00002.png Body fat is metabolized, supplying 9.30 kcal/g, when dietary intake is less than needed to fuel metabolism. The manufacturers of an exercise bicycle claim that you can lose 0.500 kg of fat per day by vigorously exercising for 2.00 h per day on their machine. (a) How many kcal are supplied by the metabolization of 0.500 kg of fat? (b) Calculate the kcal/min that you would have to utilize to metabolize fat at the rate of 0.500 kg in 2.00 h. (c) What is unreasonable about the results? (d) Which premise is unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch07/pe66/ed1ch07pe66.mp4 159 61 5 2020-01-24 yes 2020-01-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/do-balmer-and-lyman-series-overlap-answer-calculate-shortest-wavelength-balmer Do the Balmer and Lyman series overlap? To answer this, calculate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe17/thumbs-ed1ch30pe17-00002.png Do the Balmer and Lyman series overlap? To answer this, calculate the shortest-wavelength Balmer line and the longest-wavelength Lyman line. https://seo-videos.collegephysicsanswers.com/ch30/pe17/ed1ch30pe17.mp4 258 99 3.5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-equations-rn-dfracn2zab-and-ab-dfrach24pi2mekqe2-0529-times-10-10textrm-m Verify equations r_n = \dfrac{n^2}{Z}a_B and a_B =… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe23/thumbs-ed1ch30pe23-00002.png Verify equations r_n = \dfrac{n^2}{Z}a_B and a_B = \dfrac{h^2}{4\pi^2m_ekq_e^2} = 0.529 x 10^{-10} m using the approach stated in the text. That is, equate the Coulomb and centripetal forces and then insert an expression for velocity from the condition for angular momentum quantization. https://seo-videos.collegephysicsanswers.com/ch30/pe23/ed1ch30pe23.mp4 293 28 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-power-output-heart-defibrillator-dissipates-400-j-energy-100-ms-b (a) What is the average power output of a heart defibrillator that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe06/thumbs-ed1ch19pe06-00002.png (a) What is the average power output of a heart defibrillator that dissipates 400 J of energy in 10.0 ms? (b) Considering the high-power output, why doesn’t the defibrillator produce serious burns? https://seo-videos.collegephysicsanswers.com/ch19/pe06/ed1ch19pe06.mp4 128 101 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-approximate-energies-kalpha-and-kbeta-x-rays-copper What are the approximate energies of the K_{\alpha} and K_{\beta}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe29/thumbs-ed1ch30pe29-00002.png What are the approximate energies of the K_{\alpha} and K_{\beta} x-rays for copper? https://seo-videos.collegephysicsanswers.com/ch30/pe29/ed1ch30pe29.mp4 152 66 3.5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/helium-neon-laser-pumped-electric-discharge-what-wavelength-electromagnetic A helium-neon laser is pumped by electric discharge. What wavelength… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe31/thumbs-ed1ch30pe31-00002.png A helium-neon laser is pumped by electric discharge. What wavelength electromagnetic radiation would be needed to pump it? See Figure 30.39 for energy-level information. https://seo-videos.collegephysicsanswers.com/ch30/pe31/ed1ch30pe31.mp4 129 48 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-energy-photons-can-pump-chromium-atoms-ruby-laser-ground-state-its-second (a) What energy photons can pump chromium atoms in a ruby laser from… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe33/thumbs-ed1ch30pe33-00002.png (a) What energy photons can pump chromium atoms in a ruby laser from the ground state to its second and third excited states? (b) What are the wavelengths of these photons? Verify that they are in the visible part of the spectrum. https://seo-videos.collegephysicsanswers.com/ch30/pe33/ed1ch30pe33.mp4 95 101 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-sign-and-magnitude-point-charge-produces-potential-200-v-distance-100 What are the sign and magnitude of a point charge that produces a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe28/thumbs-ed1ch19pe28-00002.png What are the sign and magnitude of a point charge that produces a potential of –2.00 V at a distance of 1.00 mm? https://seo-videos.collegephysicsanswers.com/ch19/pe28/ed1ch19pe28.mp4 42 199 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-are-possible-values-ml-electron-n-4-state What are the possible values of m_l for an electron in the n = 4… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe37/thumbs-ed1ch30pe37-00002.png What are the possible values of m_l for an electron in the n = 4 state? https://seo-videos.collegephysicsanswers.com/ch30/pe37/ed1ch30pe37.mp4 66 53 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-magnitude-angular-momentum-l-1-electron-b-compare-your-answer-value (a) Calculate the magnitude of the angular momentum for an l = 1… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe39/thumbs-ed1ch30pe39-00002.png (a) Calculate the magnitude of the angular momentum for an l = 1 electron. (b) Compare your answer to the value Bohr proposed for the n = 1 state. https://seo-videos.collegephysicsanswers.com/ch30/pe39/ed1ch30pe39.mp4 88 45 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-magnitude-angular-momentum-l-3-electron-b-calculate-magnitude-electrons (a) What is the magnitude of the angular momentum for an l = 3… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe41/thumbs-ed1ch30pe41-00002.png (a) What is the magnitude of the angular momentum for an l = 3 electron? (b) Calculate the magnitude of the electron’s spin angular momentum. (c) What is the ratio of these angular momenta? https://seo-videos.collegephysicsanswers.com/ch30/pe41/ed1ch30pe41.mp4 75 32 2 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angles-can-spin-s-electron-make-z-axis What angles can the spin S of an electron make with the z -axis? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe43/thumbs-ed1ch30pe43-00002.png What angles can the spin S of an electron make with the z -axis? https://seo-videos.collegephysicsanswers.com/ch30/pe43/ed1ch30pe43.mp4 241 26 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-minimum-value-l-subshell-has-11-electrons-it-b-if-subshell-n-5-shell-what (a) What is the minimum value of l for a subshell that has 11… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe45/thumbs-ed1ch30pe45-00002.png (a) What is the minimum value of l for a subshell that has 11 electrons in it? (b) If this subshell is in the n = 5 shell, what is the spectroscopic notation for this atom? https://seo-videos.collegephysicsanswers.com/ch30/pe45/ed1ch30pe45.mp4 170 100 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/list-all-possible-sets-quantum-numbers-left-n-l-m-ms-right-n-3-shell-and (a) List all possible sets of quantum numbers \left ( n, l, m , m_s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe47/thumbs-ed1ch30pe47-00002.png (a) List all possible sets of quantum numbers \left ( n, l, m , m_s \right ) for the n = 3 shell, and determine the number of electrons that can be in the shell and each of its subshells. (b) Show that the number of electrons in the shell equals 2n^2 and that the number in each subshell is 2(2l + 1). https://seo-videos.collegephysicsanswers.com/ch30/pe47/ed1ch30pe47.mp4 242 71 4.5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/estimate-density-nucleus-calculating-density-proton-taking-it-be-sphere-12-fm Estimate the density of a nucleus by calculating the density of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe51/thumbs-ed1ch30pe51-00002.png Estimate the density of a nucleus by calculating the density of a proton, taking it to be a sphere 1.2 fm in diameter. Compare your result with the value estimated in this chapter. https://seo-videos.collegephysicsanswers.com/ch30/pe51/ed1ch30pe51.mp4 64 10 5 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-spectroscopic-notations-are-allowed-which-violate-none-rules Which of the following spectroscopic notations are allowed (that is,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe49/thumbs-ed1ch30pe49-00002.png Which of the following spectroscopic notations are allowed (that is, which violate none of the rules regarding values of quantum numbers)? (a) 1s^1 (b) 1d^3 (c) 4s^2 (d) 3p^7 (e) 6h^{20} https://seo-videos.collegephysicsanswers.com/ch30/pe49/ed1ch30pe49.mp4 321 26 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-distance-between-slits-diffraction-grating-produces-first-order-maximum (a) What is the distance between the slits of a diffraction grating… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe53/thumbs-ed1ch30pe53-00002.png (a) What is the distance between the slits of a diffraction grating that produces a first-order maximum for the first Balmer line at an angle of 20.0°? (b) At what angle will the fourth line of the Balmer series appear in first order? (c) At what angle will the second-order maximum be for the first line? https://seo-videos.collegephysicsanswers.com/ch30/pe53/ed1ch30pe53.mp4 259 13 2 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-double-slit-separation-would-produce-first-order-maximum-300circ-250-kev-x What double-slit separation would produce a first-order maximum at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe57/thumbs-ed1ch30pe57-00002.png What double-slit separation would produce a first-order maximum at 3.00° for 25.0-keV x rays? The small answer indicates that the wave character of x rays is best determined by having them interact with very small objects such as atoms and molecules. https://seo-videos.collegephysicsanswers.com/ch30/pe57/ed1ch30pe57.mp4 113 14 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-velocity-star-moving-relative-earth-if-you-observe-wavelength-910-nm Calculate the velocity of a star moving relative to the earth if you… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe55/thumbs-ed1ch30pe55-00002.png Calculate the velocity of a star moving relative to the earth if you observe a wavelength of 91.0 nm for ionized hydrogen capturing an electron directly into the lowest orbital (that is, a n_i = \infty to n_f = 1, or a Lyman series transition). https://seo-videos.collegephysicsanswers.com/ch30/pe55/ed1ch30pe55.mp4 287 72 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-value-l-orbital-angular-momentum-quantum-number-moon-around-earth-extremely Find the value of l, the orbital angular momentum quantum number, for… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe59/thumbs-ed1ch30pe59-00002.png Find the value of l, the orbital angular momentum quantum number, for the moon around the earth. The extremely large value obtained implies that it is impossible to tell the difference between adjacent quantized orbits for macroscopic objects. https://seo-videos.collegephysicsanswers.com/ch30/pe59/ed1ch30pe59.mp4 196 28 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-minimum-amount-energy-joules-needed-create-population-inversion-helium Calculate the minimum amount of energy in joules needed to create a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe61/thumbs-ed1ch30pe61-00002.png Calculate the minimum amount of energy in joules needed to create a population inversion in a helium-neon laser containing 1.00 x 10^{-4} mols of neon. https://seo-videos.collegephysicsanswers.com/ch30/pe61/ed1ch30pe61.mp4 140 10 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-mri-scanner-uses-100-mhz-radio-waves-calculate-photon-energy-b-how-does Suppose an MRI scanner uses 100-MHz radio waves. (a) Calculate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe63/thumbs-ed1ch30pe63-00002.png Suppose an MRI scanner uses 100-MHz radio waves. (a) Calculate the photon energy. (b) How does this compare to typical molecular binding energies? https://seo-videos.collegephysicsanswers.com/ch30/pe63/ed1ch30pe63.mp4 52 12 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neighboring-galaxy-rotates-its-axis-so-stars-one-side-move-toward-us-fast-200 A neighboring galaxy rotates on its axis so that stars on one side… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe65/thumbs-ed1ch30pe65-00002.png A neighboring galaxy rotates on its axis so that stars on one side move toward us as fast as 200 km/s, while those on the other side move away as fast as 200 km/s. This causes the EM radiation we receive to be Doppler shifted by velocities over the entire range of ±200 km/s. What range of wavelengths will we observe for the 656.0-nm line in the Balmer series of hydrogen emitted by stars in this galaxy. (This is called line broadening.) https://seo-videos.collegephysicsanswers.com/ch30/pe65/ed1ch30pe65.mp4 136 20 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-velocity-charged-particles-moving-along-straight-path-through Prove that the velocity of charged particles moving along a straight… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe67/thumbs-ed1ch30pe67-00002.png Prove that the velocity of charged particles moving along a straight path through perpendicular electric and magnetic fields is v = \dfrac{ E }{ B } . Thus crossed electric and magnetic fields can be used as a velocity selector independent of the charge and mass of the particle involved. https://seo-videos.collegephysicsanswers.com/ch30/pe67/ed1ch30pe67.mp4 116 6 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-physics-laboratory-observes-hydrogen-spectrum-diffraction-grating A student in a physics laboratory observes a hydrogen spectrum with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch30/pe69/thumbs-ed1ch30pe69-00002.png A student in a physics laboratory observes a hydrogen spectrum with a diffraction grating for the purpose of measuring the wavelengths of the emitted radiation. In the spectrum, she observes a yellow line and finds its wavelength to be 589 nm. (a) Assuming this is part of the Balmer series, determine n_i , the principal quantum number of the initial state. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch30/pe69/ed1ch30pe69.mp4 110 12 2019-02-27 yes 2019-02-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/energy-300-ev-required-ionize-molecule-gas-inside-geiger-tube-thereby-producing The energy of 30.0 eV is required to ionize a molecule of the gas… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe01/thumbs-ed1ch31pe01-00002.png The energy of 30.0 eV is required to ionize a molecule of the gas inside a Geiger tube, thereby producing an ion pair. Suppose a particle of ionizing radiation deposits 0.500 MeV of energy in this Geiger tube. What maximum number of ion pairs can it create? https://d1igkeoc1zsqhw.cloudfront.net/ch31/pe01/ed1ch31pe01.mp4 42 115 4 2019-03-08 no 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-radius-alpha-particle What is the radius of an alpha particle? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe07/thumbs-ed1ch31pe07-00002.png What is the radius of an alpha particle? https://seo-videos.collegephysicsanswers.com/ch31/pe07/ed1ch31pe07.mp4 33 73 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-23times-1017-kg-mass-water-normal-density-would-make-cube-60-km-side Verify that a 2.3 x 10^{17} kg mass of water at normal density would… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe05/thumbs-ed1ch31pe05-00002.png Verify that a 2.3 x 10^{17} kg mass of water at normal density would make a cube 60 km on a side, as claimed in Example 31.1. (This mass at nuclear density would make a cube 1.0 m on a side.) https://seo-videos.collegephysicsanswers.com/ch31/pe05/ed1ch31pe05.mp4 60 120 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particle-ionizing-radiation-creates-4000-ion-pairs-gas-inside-geiger-tube-it (a) A particle of ionizing radiation creates 4000 ion pairs in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe03/thumbs-ed1ch31pe03-00002.png (a) A particle of ionizing radiation creates 4000 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy was deposited, if 30.0 eV is required to create each ion pair? Convert the energy to joules or calories. (b) If all of this energy is converted to thermal energy in the gas, what is its temperature increase, assuming 50.0 cm ^3 of ideal gas at 0.250-atm pressure? (The small answer is consistent with the fact that the energy is large on a quantum mechanical scale but small on a macroscopic scale.) https://seo-videos.collegephysicsanswers.com/ch31/pe03/ed1ch31pe03.mp4 207 58 4.5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-radius-58textrmni-one-most-tightly-bound-stable-nuclei-b-what-ratio (a) Calculate the radius of ^{58} Ni , one of the most tightly bound… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe09/thumbs-ed1ch31pe09-00002.png (a) Calculate the radius of ^{58} Ni , one of the most tightly bound stable nuclei. (b) What is the ratio of the radius of ^{58} Ni to that of ^{258} Ha , one of the largest nuclei ever made? Note that the radius of the largest nucleus is still much smaller than the size of an atom. https://seo-videos.collegephysicsanswers.com/ch31/pe09/ed1ch31pe09.mp4 55 102 4.3 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/detail-observable-using-probe-limited-its-wavelength-calculate-energy-gamma-ray The detail observable using a probe is limited by its wavelength.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe13/thumbs-ed1ch31pe13-00002.png The detail observable using a probe is limited by its wavelength. Calculate the energy of a \gamma-ray photon that has a wavelength of 1 x 10^{-16} m , small enough to detect details about one-tenth the size of a nucleon. Note that a photon having this energy is difficult to produce and interacts poorly with the nucleus, limiting the practicability of this probe. https://seo-videos.collegephysicsanswers.com/ch31/pe13/ed1ch31pe13.mp4 57 38 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-velocity-beta-particle-alpha-particle-if-they-have-same What is the ratio of the velocity of a \beta particle to that of an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe11/thumbs-ed1ch31pe11-00002.png What is the ratio of the velocity of a \beta particle to that of an \alpha particle, if they have the same nonrelativistic kinetic energy? https://seo-videos.collegephysicsanswers.com/ch31/pe11/ed1ch31pe11.mp4 150 67 2 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fusion-probability-greatly-enhanced-when-appropriate-nuclei-are-brought-close Fusion probability is greatly enhanced when appropriate nuclei are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe10/thumbs-ed1ch19pe10-00002.png Fusion probability is greatly enhanced when appropriate nuclei are brought close together, but mutual Coulomb repulsion must be overcome. This can be done using the kinetic energy of high-temperature gas ions or by accelerating the nuclei toward one another. (a) Calculate the potential energy of two singly charged nuclei separated by 1.00 x 10^{-12} m by finding the voltage of one at that distance and multiplying by the charge of the other. (b) At what temperature will atoms of a gas have an average kinetic energy equal to this needed electrical potential energy? https://seo-videos.collegephysicsanswers.com/ch19/pe10/ed1ch19pe10.mp4 199 113 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-potential-between-two-points-situated-10-cm-and-20-cm-30textrm-mutextrmc (a) What is the potential between two points situated 10 cm and 20 cm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe34/thumbs-ed1ch19pe34-00002.png (a) What is the potential between two points situated 10 cm and 20 cm from a 3.0 \mu C point charge? (b) To what location should the point at 20 cm be moved to increase this potential difference by a factor of two? https://seo-videos.collegephysicsanswers.com/ch19/pe34/ed1ch19pe34.mp4 241 242 5 2020-06-24 yes 2020-06-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/naturally-occurring-charge-ground-fine-day-out-open-country-100-ncm2-what The naturally occurring charge on the ground on a fine day out in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe44/thumbs-ed1ch19pe44-00002.png The naturally occurring charge on the ground on a fine day out in the open country is –1.00 nC/m2 . (a) What is the electric field relative to ground at a height of 3.00 m? (b) Calculate the electric potential at this height. (c) Sketch electric field and equipotential lines for this scenario. https://seo-videos.collegephysicsanswers.com/ch19/pe44/ed1ch19pe44.mp4 105 63 5 2020-06-26 yes 2020-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-increase-velocity-4000-kg-space-probe-expels-3500-kg-its-mass-exhaust Calculate the increase in velocity of a 4000-kg space probe that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe55/thumbs-ed1ch08pe55-00002.png Calculate the increase in velocity of a 4000-kg space probe that expels 3500 kg of its mass at an exhaust velocity of 2.00 x 10^3 m/s . You may assume the gravitational force is negligible at the probe’s location. https://seo-videos.collegephysicsanswers.com/ch08/pe55/ed1ch08pe55.mp4 66 96 5 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/starting-equations-m1v1-m1v1costheta1-m2v2costheta2-and-0-m1v1sintheta1 Starting with equations m_1v_1 = m_1v_1'\cos(\theta_1) +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe51/thumbs-ed1ch08pe51-00002.png Starting with equations m_1v_1 = m_1v_1'\cos(\theta_1) + m_2v_2'\cos(\theta_2) and 0 = m_1v_1'\sin(\theta_1) + m_2v_2'\sin(\theta_2) for conservation of momentum in the x and y directions and assuming that one object is originally stationary, prove that for an elastic collision of two objects of equal masses, \dfrac{1}{2}mv_1^2 = \dfrac{1}{2}mv_1'^2 + \dfrac{1}{2}mv_2'^2 + mv_1'v_2'\cos(\theta_1 - \theta_2) as discussed in the text. https://seo-videos.collegephysicsanswers.com/ch08/pe51/ed1ch08pe51.mp4 307 46 5 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/given-following-data-fire-extinguisher-toy-wagon-rocket-experiment-calculate Given the following data for a fire extinguisher-toy wagon rocket… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe59/thumbs-ed1ch08pe59-00002.png Given the following data for a fire extinguisher-toy wagon rocket experiment, calculate the average exhaust velocity of the gases expelled from the extinguisher. Starting from rest, the final velocity is 10.0 m/s. The total mass is initially 75.0 kg and is 70.0 kg after the extinguisher is fired. https://seo-videos.collegephysicsanswers.com/ch08/pe59/ed1ch08pe59.mp4 59 38 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/derive-equation-vertical-acceleration-rocket Derive the equation for the vertical acceleration of a rocket. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe57/thumbs-ed1ch08pe57-00002.png Derive the equation for the vertical acceleration of a rocket. https://seo-videos.collegephysicsanswers.com/ch08/pe57/ed1ch08pe57.mp4 139 30 5 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/boy-standing-frictionless-ice-rink-initially-rest-he-throws-snowball-x-direction A boy standing on a frictionless ice rink is initially at rest. He… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap01/thumbs-ed1ch08ap01-00002.png A boy standing on a frictionless ice rink is initially at rest. He throws a snowball in the +x-direction, and it travels on a ballistic trajectory, hitting the ground some distance away. Which of the following is true about the boy while he is in the act of throwing the snowball? (a) He feels an upward force to compensate for the downward trajectory of the snowball.(b) He feels a backward force exerted by the snowball he is throwing.(c) He feels no net force.(d) He feels a forward force, the same force that propels the snowball. https://seo-videos.collegephysicsanswers.com/ch08/ap01/ed1ch08ap01.mp4 30 8 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/10-kg-ball-putty-released-rest-and-falls-vertically-15-m-until-it-strikes-hard A 1.0-kg ball of putty is released from rest and falls vertically 1.5… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap03/thumbs-ed1ch08ap03-00002.png A 1.0-kg ball of putty is released from rest and falls vertically 1.5 m until it strikes a hard floor, where it comes to rest in a 0.045-s time interval. What is the magnitude and direction of the average force exerted on the ball by the floor during the collision? (a) 33 N, up(b) 120 N, up(c) 120 N, down(d) 240 N, down https://seo-videos.collegephysicsanswers.com/ch08/ap03/ed1ch08ap03.mp4 207 36 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/test-car-driving-toward-solid-crash-test-barrier-speed-45-mih-two-seconds-prior A test car is driving toward a solid crash-test barrier with a speed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap09/thumbs-ed1ch08ap09-00002.png A test car is driving toward a solid crash-test barrier with a speed of 45 mi/h. Two seconds prior to impact, the car begins to brake, but it is still moving when it hits the wall. After the collision with the wall, the car crumples somewhat and comes to a complete stop. In order to estimate the average force exerted by the wall on the car, what information would you need to collect? (a) The (negative) acceleration of the car before it hits the wall and the distance the car travels while braking.(b) The (negative) acceleration of the car before it hits the wall and the velocity of the car just before impact.(c) The velocity of the car just before impact and the duration of the collision with the wall.(d) The duration of the collision with the wall and the distance the car travels while braking. https://seo-videos.collegephysicsanswers.com/ch08/ap09/ed1ch08ap09.mp4 36 14 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/24-kg-ceramic-bowl-falls-floor-during-0018-s-impact-bowl-experiences-average A 2.4-kg ceramic bowl falls to the floor. During the 0.018-s impact,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap05/thumbs-ed1ch08ap05-00002.png A 2.4-kg ceramic bowl falls to the floor. During the 0.018-s impact, the bowl experiences an average force of 750 N from the floor. The bowl is at rest after the impact. From what initial height did the bowl fall? (a) 1.6 m(b) 2.8 m(c) 3.2 m(d) 5.6 m https://seo-videos.collegephysicsanswers.com/ch08/ap05/ed1ch08ap05.mp4 206 28 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/25-kg-block-slides-across-frictionless-table-toward-horizontal-springas-block A 2.5-kg block slides across a frictionless table toward a horizontal… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap07/thumbs-ed1ch08ap07-00002.png A 2.5-kg block slides across a frictionless table toward a horizontal spring.As the block bounces off the spring, a probe measures the velocity of the block (initially negative, moving away from the probe) over time as follows: Velocity (m/s)Time (s)-12.00-10.00.10-6.00.2000.306.00.4010.00.5012.00.60 What is the average force exerted on the block by the spring over the entire 0.60-s time interval of the collision? (a) 50 N(b) 60 N(c) 100 N(d) 120 N https://seo-videos.collegephysicsanswers.com/ch08/ap07/ed1ch08ap07.mp4 89 19 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/22-g-puck-hits-wall-air-hockey-table-perpendicular-wall-initial-speed-14-msthe A 22-g puck hits the wall of an air hockey table perpendicular to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap11/thumbs-ed1ch08ap11-00002.png A 22-g puck hits the wall of an air hockey table perpendicular to the wall with an initial speed of 14 m/s.The puck is in contact with the wall for 0.0055 s, and it rebounds from the wall with a speed of 14 m/s in the opposite direction.What is the magnitude of the average force exerted by the wall on the puck? (a) 0.308 N(b) 0.616 N(c) 56 N(d) 112 N https://seo-videos.collegephysicsanswers.com/ch08/ap11/ed1ch08ap11.mp4 68 12 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/graph-figure-820-represents-force-exerted-particle-during-collision-what The graph in Figure 8.20 represents the force exerted on a particle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap13/thumbs-ed1ch08ap13-00002.png The graph in Figure 8.20 represents the force exerted on a particle during a collision. What is the magnitude of the change in momentum of the particle as a result of the collision? (a) 1.2 kg \cdot m/s (b) 2.4 kg \cdot m/s (c) 3.6 kg \cdot m/s (d) 4.8 kg \cdot m/s https://seo-videos.collegephysicsanswers.com/ch08/ap13/ed1ch08ap13.mp4 42 4 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-example-open-system-two-air-cars-colliding-track-elastically-two Which of the following is an example of an open system? (a) Two air… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap15/thumbs-ed1ch08ap15-00002.png Which of the following is an example of an open system? (a) Two air cars colliding on a track elastically.(b) Two air cars colliding on a track and sticking together.(c) A bullet being fired into a hanging wooden block and becoming embedded in the block, with the system then acting as a ballistic pendulum.(d) A bullet being fired into a hillside and becoming buried in the earth. https://seo-videos.collegephysicsanswers.com/ch08/ap15/ed1ch08ap15.mp4 42 12 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-sets-experiment-measure-momentum-system-two-air-cars-and-b-equal-mass A student sets up an experiment to measure the momentum of a system… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap17/thumbs-ed1ch08ap17-00002.png A student sets up an experiment to measure the momentum of a system of two air cars, A and B, of equal mass, moving on a linear, frictionless track. Before the collision, car A has a certain speed, and car B is at rest. Which of the following will be true about the total momentum of the two cars? (a) It will be greater before the collision.(b) It will be equal before and after the collision.(c) It will be greater after the collision.(d) The answer depends on whether the collision is elastic or inelastic. https://seo-videos.collegephysicsanswers.com/ch08/ap17/ed1ch08ap17.mp4 29 2 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cart-moving-initial-velocity-v-positive-direction-toward-cart-b-initially-rest Cart A is moving with an initial velocity +v (in the positive… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap19/thumbs-ed1ch08ap19-00002.png Cart A is moving with an initial velocity +v (in the positive direction) toward cart B, initially at rest. Both carts have equal mass and are on a frictionless surface. Which of the following statements correctly characterizes the velocity of the center of mass of the system before and after the collision? (a) \dfrac{+v}{2} before, \dfrac{-v}{2}, after(b) \dfrac{+v}{2} before, 0 after(c) \dfrac{+v}{2} before, \dfrac{+v}{2} after(d) 0 before, 0 after https://seo-videos.collegephysicsanswers.com/ch08/ap19/ed1ch08ap19.mp4 72 12 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-cars-and-b-mass-15-kg-collide-car-initially-moving-12-ms-and-car-b-initially Two cars (A and B) of mass 1.5 kg collide. Car A is initially moving… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap21/thumbs-ed1ch08ap21-00002.png Two cars (A and B) of mass 1.5 kg collide. Car A is initially moving at 12 m/s, and car B is initially moving in the same direction with a speed of 6 m/s. The two cars are moving along a straight line before and after the collision. What will be the change in momentum of this system after the collision?(a) -27 kg \cdot m/s (b) zero(c) +27 kg \cdot m/s (d) It depends on whether the collision is elastic or inelastic. https://seo-videos.collegephysicsanswers.com/ch08/ap21/ed1ch08ap21.mp4 58 24 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/puck-200-g-slides-across-frictionless-surface-collide-puck-b-800-g-initially Puck A (200 g) slides across a frictionless surface to collide with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap23/thumbs-ed1ch08ap23-00002.png Puck A (200 g) slides across a frictionless surface to collide with puck B (800 g), initially at rest. The velocity of each puck is measured during the experiment as follows: TimeVelocity AVelocity B0+8.0 m/s01.0 s+8.0 m/s02.0 s-2.0 m/s03.0 s-2.0 m/s+2.5 m/s What is the change in momentum of the center of mass of the system as a result of the collision? (a) +1.6 kg \cdot m/s (b) +0.8 kg \cdot m/s (c) 0(d) -1.6 kg \cdot m/s https://seo-videos.collegephysicsanswers.com/ch08/ap23/ed1ch08ap23.mp4 218 14 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-cars-and-b-equal-mass-have-elastic-collision-prior-collision-car-moving-15 Two cars (A and B) of equal mass have an elastic collision. Prior to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap25/thumbs-ed1ch08ap25-00002.png Two cars (A and B) of equal mass have an elastic collision. Prior to the collision, car A is moving at 15 m/s in the +x-direction, and car B is moving at 10 m/s in the –x-direction. Assuming that both cars continue moving along the x-axis after the collision, what will be the velocity of car A after the collision? (a) same as the original 15 m/s speed, opposite direction(b) equal to car B’s velocity prior to the collision(c) equal to the average of the two velocities, in its original direction(d) equal to the average of the two velocities, in the opposite direction https://seo-videos.collegephysicsanswers.com/ch08/ap25/ed1ch08ap25.mp4 147 16 4 2018-04-04 yes 2018-04-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-objects-and-b-equal-mass-collide-elastically-mass-initially-moving-50-ms-x Two objects (A and B) of equal mass collide elastically. Mass A is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap31/thumbs-ed1ch08ap31-00002.png Two objects (A and B) of equal mass collide elastically. Mass A is initially moving 5.0 m/s in the +x-direction prior to the collision. Mass B is initially moving 3.0 m/s in the –x-direction prior to the collision. After the collision, mass A will be moving with a velocity of 3.0 m/s in the –x-direction. What will be the velocity of mass B after the collision? (a) 3.0 m/s in the +x-direction(b) 5.0 m/s in the +x-direction(c) 3.0 m/s in the –x-direction(d) 5.0 m/s in the –x-direction https://seo-videos.collegephysicsanswers.com/ch08/ap31/ed1ch08ap31.mp4 101 6 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-objects-and-b-have-equal-mass-prior-collision-mass-moving-10-ms-x-direction Two objects, A and B, have equal mass. Prior to the collision, mass A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap29/thumbs-ed1ch08ap29-00002.png Two objects, A and B, have equal mass. Prior to the collision, mass A is moving 10 m/s in the +x-direction, and mass B is moving 4 m/s in the +x-direction. Which of the following results represents an inelastic collision between A and B? (a) After the collision, mass A is at rest, and mass B moves 14 m/s in the +x-direction.(b) After the collision, mass A moves 4 m/s in the –x-direction, and mass B moves 18 m/s in the +x-direction.(c) After the collision, the two masses stick together and move 7 m/s in the +x-direction.(d) After the collision, mass A moves 4 m/s in the +x-direction, and mass B moves 10 m/s in the +x-direction. https://seo-videos.collegephysicsanswers.com/ch08/ap29/ed1ch08ap29.mp4 17 2 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-statements-true-about-inelastic-collision-momentum-conserved-and Which of the following statements is true about an inelastic… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap35/thumbs-ed1ch08ap35-00002.png Which of the following statements is true about an inelastic collision? (a) Momentum is conserved, and kinetic energy is conserved.(b) Momentum is conserved, and kinetic energy is not conserved.(c) Momentum is not conserved, and kinetic energy is conserved.(d) Momentum is not conserved, and kinetic energy is not conserved. https://seo-videos.collegephysicsanswers.com/ch08/ap35/ed1ch08ap35.mp4 28 7 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rubber-ball-dropped-rest-fixed-height-it-bounces-hard-floor-and-rebounds-upward A rubber ball is dropped from rest at a fixed height. It bounces off… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap27/thumbs-ed1ch08ap27-00002.png A rubber ball is dropped from rest at a fixed height. It bounces off a hard floor and rebounds upward, but it only reaches 90% of its original fixed height. What is the best way to explain the loss of kinetic energy of the ball during the collision? (a) Energy was required to deform the ball’s shape during the collision with the floor.(b) Energy was lost due to work done by the ball pushing on the floor during the collision.(c) Energy was lost due to friction between the ball and the floor.(d) Energy was lost due to the work done by gravity during the motion. https://seo-videos.collegephysicsanswers.com/ch08/ap27/ed1ch08ap27.mp4 87 8 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-concept-torque-explain-why-traffic-cone-placed-its-base-stable-equilibrium Using the concept of torque, explain why a traffic cone placed on its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap03/thumbs-ed1ch09ap03-00002.png Using the concept of torque, explain why a traffic cone placed on its base is in stable equilibrium, while a traffic cone placed on its tip is in unstable equilibrium. https://seo-videos.collegephysicsanswers.com/ch09/ap03/ed1ch09ap03.mp4 174 14 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-833-below-shows-positions-two-colliding-objects-measured-during-and-after Figure 8.33 below shows the positions of two colliding objects… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap37/thumbs-ed1ch08ap37-00002.png Figure 8.33 below shows the positions of two colliding objects measured before, during, and after a collision. Mass A is 1.0 kg. Mass B is 3.0 kg. Which of the following statements is true? (a) This is an elastic collision, with a total momentum of 0 kg • m/s.(b) This is an elastic collision, with a total momentum of 1.67 kg • m/s.(c) This is an inelastic collision, with a total momentum of 0 kg • m/s.(d) This is an inelastic collision, with a total momentum of 1.67 kg • m/s. https://seo-videos.collegephysicsanswers.com/ch08/ap37/ed1ch08ap37.mp4 230 6 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-10-kg-slides-across-frictionless-surface-velocity-8-ms-positive-direction Mass A (1.0 kg) slides across a frictionless surface with a velocity… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap39/thumbs-ed1ch08ap39-00002.png Mass A (1.0 kg) slides across a frictionless surface with a velocity of 8 m/s in the positive direction. Mass B (3.0 kg) is initially at rest. The two objects collide and stick together. What will be the change in the center-of-mass velocity of the system as a result of the collision? (a) There will be no change in the center-of-mass velocity.(b) The center-of-mass velocity will decrease by 2 m/s.(c) The center-of-mass velocity will decrease by 6 m/s.(d) The center-of-mass velocity will decrease by 8 m/s. https://seo-videos.collegephysicsanswers.com/ch08/ap39/ed1ch08ap39.mp4 27 16 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-20-kg-has-initial-velocity-4-ms-x-direction-mass-b-20-kg-has-initial Mass A (2.0 kg) has an initial velocity of 4 m/s in the +x-direction.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap41/thumbs-ed1ch08ap41-00002.png Mass A (2.0 kg) has an initial velocity of 4 m/s in the +x-direction. Mass B (2.0 kg) has an initial velocity of 5 m/s in the –x-direction. If the two masses have an elastic collision, what will be the final velocities of the masses after the collision? (a) Both will move 0.5 m/s in the –x-direction.(b) Mass A will stop; mass B will move 9 m/s in the +x-direction.(c) Mass B will stop; mass A will move 9 m/s in the –x-direction.(d) Mass A will move 5 m/s in the –x-direction; mass B will move 4 m/s in the +x-direction. https://seo-videos.collegephysicsanswers.com/ch08/ap41/ed1ch08ap41.mp4 211 8 4 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-slides-across-rough-table-initial-velocity-12-ms-x-direction-time-mass Mass A slides across a rough table with an initial velocity of 12 m/s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap45/thumbs-ed1ch08ap45-00002.png Mass A slides across a rough table with an initial velocity of 12 m/s in the +x-direction. By the time mass A collides with mass B (a stationary object with equal mass), mass A has slowed to 10 m/s. After the collision, the two objects stick together and move as one. Immediately after the collision, the velocity of the system is measured to be 5 m/s in the +x-direction, and the system eventually slides to a stop. Which of the following statements is true about this motion? (a) Momentum is conserved during the collision, but it is not conserved during the motion before and after the collision.(b) Momentum is not conserved at any time during this analysis.(c) Momentum is conserved at all times during this analysis.(d) Momentum is not conserved during the collision, but it is conserved during the motion before and after the collision. https://seo-videos.collegephysicsanswers.com/ch08/ap45/ed1ch08ap45.mp4 110 6 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-initially-moving-velocity-24-ms-x-direction-mass-b-twice-massive-mass-and Mass A is initially moving with a velocity of 24 m/s in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap47/thumbs-ed1ch08ap47-00002.png Mass A is initially moving with a velocity of 24 m/s in the +x-direction. Mass B is twice as massive as mass A and is initially at rest. The two objects experience a totally inelastic collision. What is the final speed of both objects after the collision? (a) A is not moving; B is moving 24 m/s in the +x-direction.(b) Neither A nor B is moving.(c) A is moving 24 m/s in the –x-direction. B is not moving.(d) Both A and B are moving together 8 m/s in the +x-direction. https://seo-videos.collegephysicsanswers.com/ch08/ap47/ed1ch08ap47.mp4 85 8 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-20-kg-moving-initial-velocity-15-ms-x-direction-and-it-collides-mass-b-50 Mass A (2.0 kg) is moving with an initial velocity of 15 m/s in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap43/thumbs-ed1ch08ap43-00002.png Mass A (2.0 kg) is moving with an initial velocity of 15 m/s in the +x-direction, and it collides with mass B (5.0 kg), initially at rest. After the collision, the two objects stick together and move as one. What is the change in kinetic energy of the system as a result of the collision? (a) no change(b) decrease by 225 J(c) decrease by 161 J(d) decrease by 64 J https://seo-videos.collegephysicsanswers.com/ch08/ap43/ed1ch08ap43.mp4 265 12 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-initially-moving-velocity-2-ms-x-direction-mass-b-initially-moving-velocity Mass A is initially moving with a velocity of 2 m/s in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap49/thumbs-ed1ch08ap49-00002.png Mass A is initially moving with a velocity of 2 m/s in the +x-direction. Mass B is initially moving with a velocity of 6 m/s in the –x-direction. The two objects have equal masses. After they collide, mass A moves with a speed of 4 m/s in the –x-direction. What is the final velocity of mass B after the collision? (a) 6 m/s in the +x-direction(b) 4 m/s in the +x-direction(c) zero(d) 4 m/s in the –x-direction https://seo-videos.collegephysicsanswers.com/ch08/ap49/ed1ch08ap49.mp4 76 6 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-cars-equal-mass-approach-intersection-car-moving-east-speed-45-ms-car-b Two cars of equal mass approach an intersection. Car A is moving east… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/ap51/thumbs-ed1ch08ap51-00002.png Two cars of equal mass approach an intersection. Car A is moving east at a speed of 45 m/s. Car B is moving south at a speed of 35 m/s. They collide inelastically and stick together after the collision, moving as one object. Which of the following statements is true about the center-of-mass velocity of this system? (a) The center-of-mass velocity will decrease after the collision as a result of lost energy (but not drop to zero).(b) The center-of-mass velocity will remain the same after the collision since momentum is conserve(c) The center-of-mass velocity will drop to zero since the two objects stick together.(d) The magnitude of the center-of-mass velocity will remain the same, but the direction of the velocity will change. https://seo-videos.collegephysicsanswers.com/ch08/ap51/ed1ch08ap51.mp4 28 10 1 2018-04-05 yes 2018-04-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-aztextrmxn-notation-refer-1 Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe21/thumbs-ed1ch31pe21-00002.png Write the complete decay equation for the given nuclide in the complete ^A\_Z X \_N notation. Refer to the periodic table for values of Z:Electron capture by ^7 Be https://seo-videos.collegephysicsanswers.com/ch31/pe21/ed1ch31pe21.mp4 98 82 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/sketch-equipotential-lines-surrounding-two-conducting-plates-shown-figure-1936 Sketch the equipotential lines surrounding the two conducting plates… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe42/thumbs-ed1ch19pe42-00002.png Sketch the equipotential lines surrounding the two conducting plates shown in Figure 19.36, given the top plate is positive and the bottom plate has an equal amount of negative charge. Be certain to indicate the distribution of charge on the plates. Is the field strongest where the plates are closest? Why should it be? https://seo-videos.collegephysicsanswers.com/ch19/pe42/ed1ch19pe42.mp4 130 90 5 2020-06-26 yes 2020-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-ratio-velocity-500-mev-beta-ray-alpha-particle-same-kinetic-energy-should What is the ratio of the velocity of a 5.00-MeV \beta ray to that of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe15/thumbs-ed1ch31pe15-00002.png What is the ratio of the velocity of a 5.00-MeV \beta ray to that of an \alpha particle with the same kinetic energy? This should confirm that \betas travel much faster than α s even when relativity is taken into consideration. https://seo-videos.collegephysicsanswers.com/ch31/pe15/ed1ch31pe15.mp4 352 90 1.5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-capacitance-large-van-de-graaff-generators-terminal-given-it-stores-800-mc What is the capacitance of a large Van de Graaff generator’s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe52/thumbs-ed1ch19pe52-00002.png What is the capacitance of a large Van de Graaff generator’s terminal, given that it stores 8.00 mC of charge at a voltage of 12.0 MV? https://seo-videos.collegephysicsanswers.com/ch19/pe52/ed1ch19pe52.mp4 30 38 5 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-voltage-must-be-applied-800-nf-capacitor-store-0160-mc-charge What voltage must be applied to an 8.00 nF capacitor to store 0.160… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe50/thumbs-ed1ch19pe50-00002.png What voltage must be applied to an 8.00 nF capacitor to store 0.160 mC of charge? https://seo-videos.collegephysicsanswers.com/ch19/pe50/ed1ch19pe50.mp4 46 122 5 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-aztextrmxn-notation-refer-4 Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe27/ed1ch31pe27b-thumbnail.jpg Write the complete decay equation for the given nuclide in the complete ^A\_Z X \_N notation. Refer to the periodic table for values of Z:\alpha decay producing ^{228} Ra . The parent nuclide is nearly 100% of the natural element and is found in gas lantern mantles and in metal alloys used in jets (^{228} Ra is also radioactive). https://seo-videos.collegephysicsanswers.com/ch31/pe27/ed1ch31pe27b.mp4 106 48 2024-02-07 yes 2024-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-electron-and-positron-annihilate-both-their-masses-are-destroyed-creating When an electron and positron annihilate, both their masses are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe29/thumbs-ed1ch31pe29-00002.png When an electron and positron annihilate, both their masses are destroyed, creating two equal energy photons to preserve momentum. (a) Confirm that the annihilation equation e ^+ + e ^- \to \gamma + \gamma conserves charge, electron family number, and total number of nucleons. To do this, identify the values of each before and after the annihilation. (b) Find the energy of each \gamma ray, assuming the electron and positron are initially nearly at rest. (c) Explain why the two \gamma rays travel in exactly opposite directions if the center of mass of the electron-positron system is initially at rest. https://seo-videos.collegephysicsanswers.com/ch31/pe29/ed1ch31pe29.mp4 194 41 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-charge-electron-family-number-and-total-number-nucleons-are-all Confirm that charge, electron family number, and the total number of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe31/ed1ch31pe31b-thumbnail.jpg Confirm that charge, electron family number, and the total number of nucleons are all conserved by the rule for \beta^- decay given in the equation {}^A_Z X _N \to {}^A_{Z+1} Y _{N-1} + \beta^- + \bar{\nu_ e }. To do this, identify the values of each before and after the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe31/ed1ch31pe31b.mp4 115 26 4 2024-02-07 yes 2024-02-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/confirm-charge-electron-family-number-and-total-number-nucleons-are-all-0 Confirm that charge, electron family number, and the total number of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe33/thumbs-ed1ch31pe33-00002.png Confirm that charge, electron family number, and the total number of nucleons are all conserved by the rule for electron capture given in the equation ^A_Z X _N + e^- \to ^A_{Z-1} Y _{N+1} + \nu_e. To do this, identify the values of each before and after the capture. https://seo-videos.collegephysicsanswers.com/ch31/pe33/ed1ch31pe33.mp4 109 8 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-alpha-decay-equation-226textrmra-b-find-energy-released-decay (a) Write the complete \alpha decay equation for ^{226} Ra . (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe35/thumbs-ed1ch31pe35-00002.png (a) Write the complete \alpha decay equation for ^{226} Ra . (b) Find the energy released in the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe35/ed1ch31pe35.mp4 143 97 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-beta-decay-equation-neutron-b-find-energy-released-decay (a) Write the complete \beta^- decay equation for the neutron. (b)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe37/thumbs-ed1ch31pe37-00002.png (a) Write the complete \beta^- decay equation for the neutron. (b) Find the energy released in the decay. https://seo-videos.collegephysicsanswers.com/ch31/pe37/ed1ch31pe37.mp4 100 54 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-released-beta-decay-22textrmna-equation-which-given-text-masses Calculate the energy released in the \beta^+ decay of ^{22} Na , the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe39/thumbs-ed1ch31pe39-00002.png Calculate the energy released in the \beta^+ decay of ^{22} Na , the equation for which is given in the text. The masses of ^{22} Na and ^{22} Ne are 21.994434 u and 21.991383 u, respectively. https://seo-videos.collegephysicsanswers.com/ch31/pe39/ed1ch31pe39.mp4 197 89 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-released-alpha-decay-238textrmu-b-what-fraction-mass-single (a) Calculate the energy released in the \alpha decay of ^{238} U … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe41/thumbs-ed1ch31pe41-00002.png (a) Calculate the energy released in the \alpha decay of ^{238} U (b) What fraction of the mass of a single ^{238} U is destroyed in the decay? The mass of ^{234} Th is 234.043593 u. (c) Although the fractional mass loss is large for a single nucleus, it is difficult to observe for an entire macroscopic sample of uranium. Why is this? https://seo-videos.collegephysicsanswers.com/ch31/pe41/ed1ch31pe41.mp4 140 54 1 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-reaction-equation-electron-capture-15textrmo-b-calculate-energy (a) Write the complete reaction equation for electron capture by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe43/thumbs-ed1ch31pe43-00002.png (a) Write the complete reaction equation for electron capture by ^{15} O . (b) Calculate the energy released. https://seo-videos.collegephysicsanswers.com/ch31/pe43/ed1ch31pe43.mp4 214 42 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/800textrm-mutextrmf-capacitor-connected-parallel-another-capacitor-producing (a) An 8.00 \mu F capacitor is connected in parallel to another… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe62/thumbs-ed1ch19pe62-00002.png (a) An 8.00 \mu F capacitor is connected in parallel to another capacitor, producing a total capacitance of 5.00 \mu F . What is the capacitance of the second capacitor? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch19/pe62/ed1ch19pe62.mp4 63 38 5 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-activity-14textrmc-100-g-12textrmc-found-living-tissue-0250-bq Show that the activity of the ^{14} C in 1.00 g of ^{12} C found in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe47/thumbs-ed1ch31pe47-00002.png Show that the activity of the ^{14} C in 1.00 g of ^{12} C found in living tissue is 0.250 Bq. https://seo-videos.collegephysicsanswers.com/ch31/pe47/ed1ch31pe47.mp4 176 54 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cows-milk-produced-near-nuclear-reactors-can-be-tested-little-100-pci-131textrmi Cow’s milk produced near nuclear reactors can be tested for as little… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe49/thumbs-ed1ch31pe49-00002.png Cow’s milk produced near nuclear reactors can be tested for as little as 1.00 pCi of ^{131} I per liter, to check for possible reactor leakage. What mass of ^{131} I has this activity? https://seo-videos.collegephysicsanswers.com/ch31/pe49/ed1ch31pe49.mp4 177 102 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-more-one-isotope-natural-uranium-if-researcher-isolates-100-mg-relatively There is more than one isotope of natural uranium. If a researcher… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe51/thumbs-ed1ch31pe51-00002.png There is more than one isotope of natural uranium. If a researcher isolates 1.00 mg of the relatively scarce ^{235} U and finds this mass to have an activity of 80.0 Bq, what is its half-life in years? https://seo-videos.collegephysicsanswers.com/ch31/pe51/ed1ch31pe51.mp4 194 54 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/you-can-sometimes-find-deep-red-crystal-vases-antique-stores-called-uranium You can sometimes find deep red crystal vases in antique stores,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe53/thumbs-ed1ch31pe53-00002.png You can sometimes find deep red crystal vases in antique stores, called uranium glass because their color was produced by doping the glass with uranium. Look up the natural isotopes of uranium and their half-lives, and calculate the activity of such a vase assuming it has 2.00 g of uranium in it. Neglect the activity of any daughter nuclides. https://seo-videos.collegephysicsanswers.com/ch31/pe53/ed1ch31pe53.mp4 200 41 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fraction-40textrmk-was-earth-when-it-formed-45times-109-years-ago-left What fraction of the ^{40} K that was on Earth when it formed 4.5 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe55/thumbs-ed1ch31pe55-00002.png What fraction of the ^{40} K that was on Earth when it formed 4.5 x 10^{9} years ago is left today? https://seo-videos.collegephysicsanswers.com/ch31/pe55/ed1ch31pe55.mp4 132 115 2 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/swan-lake-gets-airborne-flapping-its-wings-and-running-top-water-if-swan-must A swan on a lake gets airborne by flapping its wings and running on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe31/thumbs-ed1ch02pe31-00002.png A swan on a lake gets airborne by flapping its wings and running on top of the water. (a) If the swan must reach a velocity of 6.00 m/s to take off and it accelerates from rest at an average rate of 0.350 m/s ^2 , how far will it travel before becoming airborne? (b) How long does this take? https://seo-videos.collegephysicsanswers.com/ch02/pe31/ed1ch02pe31.mp4 194 433 5 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/dragsters-can-actually-reach-top-speed-145-ms-only-445-s-considerably-less-time Dragsters can actually reach a top speed of 145 m/s in only 4.45… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe37/thumbs-ed1ch02pe37-00002.png Dragsters can actually reach a top speed of 145 m/s in only 4.45 s—considerably less time than given in the textbook examples. (a) Calculate the average acceleration for such a dragster. (b) Find the final velocity of this dragster starting from rest and accelerating at the rate found in (a) for 402 m (a quarter mile) without using any information on time. (c) Why is the final velocity greater than that used to find the average acceleration? _Hint_: Consider whether the assumption of constant acceleration is valid for a dragster. If not, discuss whether the acceleration would be greater at the beginning or end of the run and what effect that would have on the final velocity. https://seo-videos.collegephysicsanswers.com/ch02/pe37/ed1ch02pe37.mp4 248 186 5 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/natural-uranium-07200-235textrmu-and-9927-238textrmu-what-were-percentages Natural uranium is 0.7200% ^{235} U and 99.27% ^{238} U . What were… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe57/thumbs-ed1ch31pe57-00002.png Natural uranium is 0.7200% ^{235} U and 99.27% ^{238} U . What were the percentages of ^{235} U and ^{238} U in natural uranium when Earth formed 4.5 x 10^{9} years ago? https://seo-videos.collegephysicsanswers.com/ch31/pe57/ed1ch31pe57.mp4 238 105 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1967-new-zealander-burt-munro-set-world-record-indian-motorcycle-bonneville-salt In 1967, New Zealander Burt Munro set the world record for an Indian… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe39/thumbs-ed1ch02pe39-00002.png In 1967, New Zealander Burt Munro set the world record for an Indian motorcycle, on the Bonneville Salt Flats in Utah, with a maximum speed of 183.58 mi/h. The one-way course was 5.00 mi long. Acceleration rates are often described by the time it takes to reach 60.0 mi/h from rest. If this time was 4.00 s, and Burt accelerated at this rate until he reached his maximum speed, how long did it take Burt to complete the course? https://seo-videos.collegephysicsanswers.com/ch02/pe39/ed1ch02pe39.mp4 457 276 5 2018-02-09 yes 2018-02-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/world-war-ii-aircraft-had-instruments-glowing-radium-painted-dials-see-figure World War II aircraft had instruments with glowing radium- painted… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe59/thumbs-ed1ch31pe59-00002.png World War II aircraft had instruments with glowing radium- painted dials (see Figure 31.2). The activity of one such instrument was 1.0 x 10^{5} Bq when new. (a) What mass of ^{226} Ra was present? (b) After some years, the phosphors on the dials deteriorated chemically, but the radium did not escape. What is the activity of this instrument 57.0 years after it was made? https://seo-videos.collegephysicsanswers.com/ch31/pe59/ed1ch31pe59.mp4 229 62 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/armor-piercing-shells-depleted-uranium-cores-are-fired-aircraft-tanks-high Armor-piercing shells with depleted uranium cores are fired by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe61/thumbs-ed1ch31pe61-00002.png Armor-piercing shells with depleted uranium cores are fired by aircraft at tanks. (The high density of the uranium makes them effective.) The uranium is called depleted because it has had its ^{235} U removed for reactor use and is nearly pure ^{238} U . Depleted uranium has been erroneously called non-radioactive. To demonstrate that this is wrong: (a) Calculate the activity of 60.0 g of pure ^{238} U . (b) Calculate the activity of 60.0 g of natural uranium, neglecting the ^{234} U and all daughter nuclides. https://seo-videos.collegephysicsanswers.com/ch31/pe61/ed1ch31pe61.mp4 205 32 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-amounts-depleted-uranium-238textrmu-are-available-product-uranium Large amounts of depleted uranium (^{238} U ) are available as a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe63/thumbs-ed1ch31pe63-00002.png Large amounts of depleted uranium (^{238} U ) are available as a by-product of uranium processing for reactor fuel and weapons. Uranium is very dense and makes good counter weights for aircraft. Suppose you have a 4000-kg block of ^{238} U . (a) Find its activity. (b) How many calories per day are generated by thermalization of the decay energy? (c) Do you think you could detect this as heat? Explain. https://seo-videos.collegephysicsanswers.com/ch31/pe63/ed1ch31pe63.mp4 264 18 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/natural-uranium-07200-235textrmu-9927-238textrmu-and-00055-234textrmu-what-were Natural uranium is 0.7200% ^{235} U , 99.27% ^{238} U , and 0.0055%… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe67/thumbs-ed1ch31pe67-00002.png Natural uranium is 0.7200% ^{235} U , 99.27% ^{238} U , and 0.0055% ^{234} U . (a) What were the percentages of ^{235} U , ^{238} U , and ^{234} U in natural uranium when Earth formed 4.5 x 10^{9} years ago? (b) What is unreasonable about this result? (c) What assumption is responsible? (d) Where does ^{234} U come from if it is not primordial? https://seo-videos.collegephysicsanswers.com/ch31/pe67/ed1ch31pe67.mp4 313 12 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-250-m-high-cliff-half-dome-yosemite-national-park-california-suppose There is a 250-m-high cliff at Half Dome in Yosemite National Park in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe53/thumbs-ed1ch02pe53-00002.png There is a 250-m-high cliff at Half Dome in Yosemite National Park in California. Suppose a boulder breaks loose from the top of this cliff. (a) How fast will it be going when it strikes the ground? (b) Assuming a reaction time of 0.300 s, how long will a tourist at the bottom have to get out of the way after hearing the sound of the rock breaking loose (neglecting the height of the tourist, which would become negligible anyway if hit)? The speed of sound is 335 m/s on this day. https://seo-videos.collegephysicsanswers.com/ch02/pe53/ed1ch02pe53.mp4 401 318 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/2textrmh-loosely-bound-isotope-hydrogen-called-deuterium-or-heavy-hydrogen-it ^2 H is a loosely bound isotope of hydrogen. Called deuterium or… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe69/thumbs-ed1ch31pe69-00002.png ^2 H is a loosely bound isotope of hydrogen. Called deuterium or heavy hydrogen, it is stable but relatively rare—it is 0.015% of natural hydrogen. Note that deuterium has Z = N , which should tend to make it more tightly bound, but both are odd numbers. Calculate BE/A , the binding energy per nucleon, for ^2H and compare it with the approximate value obtained from the graph in Figure 31.27. https://seo-videos.collegephysicsanswers.com/ch31/pe69/ed1ch31pe69.mp4 128 58 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-drop-rock-dark-well-and-using-precision-equipment-you-measure-time Suppose you drop a rock into a dark well and, using precision… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe55/thumbs-ed1ch02pe55-00002.png Suppose you drop a rock into a dark well and, using precision equipment, you measure the time for the sound of a splash to return. (a) Neglecting the time required for sound to travel up the well, calculate the distance to the water if the sound returns in 2.0000 s. (b) Now calculate the distance taking into account the time for sound to travel up the well. The speed of sound is 332.00 m/s in this well. https://seo-videos.collegephysicsanswers.com/ch02/pe55/ed1ch02pe55.mp4 599 302 4 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-charge-stored-180textrm-mutextrmf-capacitor-when-120-v-applied-it What charge is stored in a 180 \mu F capacitor when 120 V is applied… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe46/thumbs-ed1ch19pe46-00002.png What charge is stored in a 180 \mu F capacitor when 120 V is applied to it? https://seo-videos.collegephysicsanswers.com/ch19/pe46/ed1ch19pe46.mp4 33 177 5 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/construct-displacement-graph-subway-shuttle-train-shown-figure-218a-your-graph Construct the displacement graph for the subway shuttle train as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe63/thumbs-ed1ch02pe63-00002.png Construct the displacement graph for the subway shuttle train as shown in Figure 2.18(a). Your graph should show the position of the train, in kilometers, from t = 0 to 20 s. You will need to use the information on acceleration and velocity given in the examples for this figure. https://seo-videos.collegephysicsanswers.com/ch02/pe63/ed1ch02pe63.mp4 241 100 5 2018-02-14 yes 2018-02-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/209textrmbi-heaviest-stable-nuclide-and-its-be-low-compared-medium-mass-nuclides ^{209} Bi is the heaviest stable nuclide, and its BE / A is low… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe71/thumbs-ed1ch31pe71-00002.png ^{209} Bi is the heaviest stable nuclide, and its BE / A is low compared with medium-mass nuclides. Calculate BE/A , the binding energy per nucleon, for ^{209} Bi and compare it with the approximate value obtained from the graph in Figure 31.26. https://seo-videos.collegephysicsanswers.com/ch31/pe71/ed1ch31pe71.mp4 104 58 5 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-want-capacitor-bank-total-capacitance-0750-f-and-you-possess Suppose you want a capacitor bank with a total capacitance of 0.750 F… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe58/thumbs-ed1ch19pe58-00002.png Suppose you want a capacitor bank with a total capacitance of 0.750 F and you possess numerous 1.50 mF capacitors. What is the smallest number you could hook together to achieve your goal, and how would you connect them? https://seo-videos.collegephysicsanswers.com/ch19/pe58/ed1ch19pe58.mp4 70 103 5 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-parallel-plate-capacitor-has-plates-area-400textrm-m2-separated-00100-mm (a) A certain parallel plate capacitor has plates of area 4.00 m ^2,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe56/thumbs-ed1ch19pe56-00002.png (a) A certain parallel plate capacitor has plates of area 4.00 m ^2, separated by 0.0100 mm of nylon, and stores 0.170 C of charge. What is the applied voltage? (b) What is unreasonable about this result? (c) Which assumptions are responsible or inconsistent? https://seo-videos.collegephysicsanswers.com/ch19/pe56/ed1ch19pe56.mp4 169 81 5 2020-06-30 yes 2020-06-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/particular-day-it-takes-960times-103textrm-j-electric-energy-start-trucks-engine (a) On a particular day, it takes 9.60 x 10^{3} J of electric energy… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe70/thumbs-ed1ch19pe70-00002.png (a) On a particular day, it takes 9.60 x 10^{3} J of electric energy to start a truck’s engine. Calculate the capacitance of a capacitor that could store that amount of energy at 12.0 V. (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch19/pe70/ed1ch19pe70.mp4 132 34 5 2020-07-01 yes 2020-07-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-be-12textrmc-stable-and-relatively-tightly-bound-nuclide-most-natural (a) Calculate BE / A for ^{12} C . Stable and relatively tightly… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe73/thumbs-ed1ch31pe73-00002.png (a) Calculate BE / A for ^{12} C . Stable and relatively tightly bound, this nuclide is most of natural carbon. (b) Calculate BE / A for ^{14} C . Is the difference in BE / A between ^{12} C and ^{14} C significant? One is stable and common, and the other is unstable and rare. https://seo-videos.collegephysicsanswers.com/ch31/pe73/ed1ch31pe73.mp4 159 69 4 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/purpose-problem-show-three-ways-binding-energy-electron-hydrogen-atom-negligible The purpose of this problem is to show in three ways that the binding… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe75/thumbs-ed1ch31pe75-00002.png The purpose of this problem is to show in three ways that the binding energy of the electron in a hydrogen atom is negligible compared with the masses of the proton and electron. (a) Calculate the mass equivalent in u of the 13.6-eV binding energy of an electron in a hydrogen atom, and compare this with the mass of the hydrogen atom obtained from Appendix A. (b) Subtract the mass of the proton given in Table 31.2 from the mass of the hydrogen atom given in Appendix A. You will find the difference is equal to the electron’s mass to three digits, implying the binding energy is small in comparison. (c) Take the ratio of the binding energy of the electron (13.6 eV) to the energy equivalent of the electron’s mass (0.511 MeV). (d) Discuss how your answers confirm the stated purpose of this problem. https://seo-videos.collegephysicsanswers.com/ch31/pe75/ed1ch31pe75.mp4 177 16 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-given-dielectric-material-maximum-energy-parallel-plate-capacitor-can-store Show that for a given dielectric material the maximum energy a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch19/pe68/thumbs-ed1ch19pe68-00002.png Show that for a given dielectric material the maximum energy a parallel plate capacitor can store is directly proportional to the volume of dielectric ( Volume = A \cdot d). Note that the applied voltage is limited by the dielectric strength. https://seo-videos.collegephysicsanswers.com/ch19/pe68/ed1ch19pe68.mp4 163 30 5 2020-07-01 yes 2020-07-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/derive-approximate-relationship-between-energy-alpha-decay-and-half-life-using Derive an approximate relationship between the energy of \alpha decay… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe77/thumbs-ed1ch31pe77-00002.png Derive an approximate relationship between the energy of \alpha decay and half-life using the following data. It may be useful to graph the log of t\_{1/2} against E\_\alpha to find some straight-line relationship. NuclideE_\alpha (MeV)t_{1/2}^{216} Ra 9.50.18 \mu s ^{194} Po 7.00.7 s^{240} Cm 6.427 d^{236} Ra 4.911600 y^{232} Th 4.11.4 x 10^{10} y https://seo-videos.collegephysicsanswers.com/ch31/pe77/ed1ch31pe77.mp4 91 14 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/physicist-scatters-gamma-rays-substance-and-sees-evidence-nucleus-75times-10 A physicist scatters \gamma rays from a substance and sees evidence… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe81/thumbs-ed1ch31pe81-00002.png A physicist scatters \gamma rays from a substance and sees evidence of a nucleus 7.5 x 10^{-13} m in radius. (a) Find the atomic mass of such a nucleus. (b) What is unreasonable about this result? (c) What is unreasonable about the assumption? https://seo-videos.collegephysicsanswers.com/ch31/pe81/ed1ch31pe81.mp4 69 14 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-decay-equation-decay-235textrmu-b-what-energy-released-decay-mass-daughter (a) Write the decay equation for the α decay of ^{235} U . (b) What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe79/thumbs-ed1ch31pe79-00002.png (a) Write the decay equation for the α decay of ^{235} U . (b) What energy is released in this decay? The mass of the daughter nuclide is 231.036298 u. (c) Assuming the residual nucleus is formed in its ground state, how much energy goes to the \alpha particle? https://seo-videos.collegephysicsanswers.com/ch31/pe79/ed1ch31pe79.mp4 260 28 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neutron-generator-uses-alpha-source-such-radium-bombard-beryllium-inducing A neutron generator uses an \alpha source, such as radium, to bombard… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe01/thumbs-ed1ch32pe01-00002.png A neutron generator uses an \alpha source, such as radium, to bombard beryllium, inducing the reaction ^4 He +{}^9 Be \to {}^{12}\mathrm{C} + n. Such neutron sources are called RaBe sources, or PuBe sources if they use plutonium to get the \alphas. Calculate the energy output of the reaction in MeV. https://d1igkeoc1zsqhw.cloudfront.net/ch32/pe01/ed1ch32pe01.mp4 85 65 2019-05-08 no 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/purpose-producing-99textrmmo-usually-neutron-activation-natural-molybdenum The purpose of producing {}^{99} Mo (usually by neutron activation… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe03/thumbs-ed1ch32pe03-00002.png The purpose of producing {}^{99} Mo (usually by neutron activation of natural molybdenum, as in the preceding problem) is to produce {}^{99 m } Tc . Using the rules, verify that the \beta^- decay of {}^{99} Mo produces {}^{99 m } Tc . (Most {}^{99 m } Tc nuclei produced in this decay are left in a metastable excited state denoted {}^{99 m } Tc .) https://seo-videos.collegephysicsanswers.com/ch32/pe03/ed1ch32pe03.mp4 97 22 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-ranges-projectiles-figure-340a-and-given-initial-velocities Verify the ranges for the projectiles in Figure 3.40(a) for and the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe31/thumbs-ed1ch03pe31-00002.png Verify the ranges for the projectiles in Figure 3.40(a) for and the given initial velocities. https://seo-videos.collegephysicsanswers.com/ch03/pe31/ed1ch03pe31.mp4 86 178 5 2018-02-16 yes 2018-02-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/can-goalkeeper-her-his-goal-kick-soccer-ball-opponents-goal-without-ball Can a goalkeeper at her/ his goal kick a soccer ball into the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe43/thumbs-ed1ch03pe43-00002.png Can a goalkeeper at her/ his goal kick a soccer ball into the opponent's goal without the ball touching the ground? The distance will be about 95 m. A goalkeeper can give the ball a speed of 30 m/s. https://seo-videos.collegephysicsanswers.com/ch03/pe43/ed1ch03pe43.mp4 105 438 4.8 2018-02-17 yes 2018-02-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-mass-239textrmpu-has-activity-100-mutextrmci Find the mass of {}^{239} Pu that has an activity of 1.00 \mu Ci . | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe15/thumbs-ed1ch32pe15-00002.png Find the mass of {}^{239} Pu that has an activity of 1.00 \mu Ci . https://seo-videos.collegephysicsanswers.com/ch32/pe15/ed1ch32pe15.mp4 120 34 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/table-321-indicates-750-mci-99textrmmtextrmtc-used-brain-scan-what-mass Table 32.1 indicates that 7.50 mCi of {}^{99 m } Tc is used in a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe05/thumbs-ed1ch32pe05-00002.png Table 32.1 indicates that 7.50 mCi of {}^{99 m } Tc is used in a brain scan. What is the mass of technetium? https://seo-videos.collegephysicsanswers.com/ch32/pe05/ed1ch32pe05.mp4 169 25 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/neutron-activation-sodium-which-100-23textrmna-produces-24textrmna-which-used (a) Neutron activation of sodium, which is 100% {}^{23} Na , produces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe07/thumbs-ed1ch32pe07-00002.png (a) Neutron activation of sodium, which is 100% {}^{23} Na , produces {}^{24} Na , which is used in some heart scans, as seen in Table 32.1. The equation for the reaction is {}^{23} Na + n \to {}^{24} Na + \gamma. Find its energy output, given the mass of {}^{24} Na is 23.990962 u. https://seo-videos.collegephysicsanswers.com/ch32/pe07/ed1ch32pe07.mp4 205 12 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-current-when-200-nc-jumps-between-your-comb-and-hair-over-0500textrm Find the current when 2.00 nC jumps between your comb and hair over a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe04/thumbs-ed1ch20pe04-00002.png Find the current when 2.00 nC jumps between your comb and hair over a 0.500 \mu s time interval. https://seo-videos.collegephysicsanswers.com/ch20/pe04/ed1ch20pe04.mp4 41 46 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electron-guns-are-used-x-ray-tubes-electrons-are-accelerated-through-relatively Electron guns are used in X-ray tubes. The electrons are accelerated… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe12/thumbs-ed1ch20pe12-00002.png Electron guns are used in X-ray tubes. The electrons are accelerated through a relatively large voltage and directed onto a metal target, producing X-rays. (a) How many electrons per second strike the target if the current is 0.500 mA? (b) What charge strikes the target in 0.750 s? https://seo-videos.collegephysicsanswers.com/ch20/pe12/ed1ch20pe12.mp4 71 78 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-amounts-65textrmzn-are-produced-copper-exposed-accelerator-beams-while Large amounts of {}^{65} Zn are produced in copper exposed to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe21/thumbs-ed1ch32pe21-00002.png Large amounts of {}^{65} Zn are produced in copper exposed to accelerator beams. While machining contaminated copper, a physicist ingests 50 \mu Ci of {}^{65} Zn . Each {}^{65} Zn decay emits an average \gamma-ray energy of 0.550 MeV , 40.0% of which is absorbed in the scientist's 75.0 kg body. What dose in mSv is caused by this in one day? https://seo-videos.collegephysicsanswers.com/ch32/pe21/ed1ch32pe21.mp4 173 24 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-everyone-australia-received-extra-005-msv-year-radiation-what-would-be If everyone in Australia received an extra 0.05 mSv per year of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe25/thumbs-ed1ch32pe25-00002.png If everyone in Australia received an extra 0.05 mSv per year of radiation, what would be the increase in the number of cancer deaths per year? (Assume that time had elapsed for the effects to become apparent.) Assume that there are 200 x 10^{-4} deaths per Sv of radiation per year. What percent of the actual number of cancer deaths recorded is this? https://seo-videos.collegephysicsanswers.com/ch32/pe25/ed1ch32pe25.mp4 71 10 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-average-molecular-mass-compounds-food-500-g-how-many-molecules-are-there-100 (a) If the average molecular mass of compounds in food is 50.0 g, how… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe17/thumbs-ed1ch32pe17-00002.png (a) If the average molecular mass of compounds in food is 50.0 g, how many molecules are there in 1.00 kg of food? (b) How many ion pairs are created in 1.00 kg of food, if it is exposed to 1000 Sv and it takes 32.0 eV to create an ion pair? (c) Find the ratio of ion pairs to molecules. (d) If these ion pairs recombine into a distribution of 2000 new compounds, how many parts per billion is each? https://seo-videos.collegephysicsanswers.com/ch32/pe17/ed1ch32pe17.mp4 267 8 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-listing-number-nucleons-total-charge-and-electron-family-number-and-after Verify by listing the number of nucleons, total charge, and electron… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe29/thumbs-ed1ch32pe29-00002.png Verify by listing the number of nucleons, total charge, and electron family number before and after the cycle that these quantities are conserved in the overall proton-proton cycle in 2e^- + 4{}^{1} H \to {}^{4} He + 2\nu_e + 6\gamma. https://seo-videos.collegephysicsanswers.com/ch32/pe29/ed1ch32pe29.mp4 109 16 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/tritium-naturally-rare-can-be-produced-reaction-n-2textrmh-3textrmh-gamma-how Tritium is naturally rare, but can be produced by the reaction n +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe31/thumbs-ed1ch32pe31-00002.png Tritium is naturally rare, but can be produced by the reaction n + {}^{2} H \to {}^{3} H + \gamma. How much energy in MeV is released in this neutron capture? https://seo-videos.collegephysicsanswers.com/ch32/pe31/ed1ch32pe31.mp4 76 23 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cancer-patient-exposed-g-rays-5000-ci-60textrmco-transillumination-unit-320-s (a) A cancer patient is exposed to γ rays from a 5000-Ci {}^{60} Co … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe19/thumbs-ed1ch32pe19-00002.png (a) A cancer patient is exposed to γ rays from a 5000-Ci {}^{60} Co transillumination unit for 32.0 s. The \gamma rays are collimated in such a manner that only 1.00% of them strike the patient. Of those, 20.0% are absorbed in a tumor having a mass of 1.50 kg. What is the dose in rem to the tumor, if the average \gamma energy per decay is 1.25 MeV? None of the \betas from the decay reach the patient. (b) Is the dose consistent with stated therapeutic doses? https://seo-videos.collegephysicsanswers.com/ch32/pe19/ed1ch32pe19.mp4 250 40 3 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/background-radiation-due-226textrmra-averages-only-001-msvy-it-can-range-upward (a) Background radiation due to {}^{226} Ra averages only 0.01… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe23/thumbs-ed1ch32pe23-00002.png (a) Background radiation due to {}^{226} Ra averages only 0.01 mSv/y, but it can range upward depending on where a person lives. Find the mass of {}^{226} Ra in the 80.0-kg body of a man who receives a dose of 2.50-mSv/y from it, noting that each {}^{226} Ra decay emits a 4.80-MeV \alpha particle. You may neglect dose due to daughters and assume a constant amount, evenly distributed due to balanced ingestion and bodily elimination. (b) Is it surprising that such a small mass could cause a measurable radiation dose? Explain. https://seo-videos.collegephysicsanswers.com/ch32/pe23/ed1ch32pe23.mp4 264 12 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/power-output-sun-4times-1026textrm-w-if-90-supplied-proton-proton-cycle-how-many The power output of the Sun is 4 x 10^{26} W . (a) If 90% of this is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe35/thumbs-ed1ch32pe35-00002.png The power output of the Sun is 4 x 10^{26} W . (a) If 90% of this is supplied by the proton-proton cycle, how many protons are consumed per second? (b) How many neutrinos per second should there be per square meter at the Earth from this process? This huge number is indicative of how rarely a neutrino interacts, since large detectors observe very few per day. https://seo-videos.collegephysicsanswers.com/ch32/pe35/ed1ch32pe35.mp4 151 46 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-output-each-fusion-reactions-proton-proton-cycle-and-verify Calculate the energy output in each of the fusion reactions in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe27/thumbs-ed1ch32pe27-00002.png Calculate the energy output in each of the fusion reactions in the proton-proton cycle, and verify the values given in the above summary. https://seo-videos.collegephysicsanswers.com/ch32/pe27/ed1ch32pe27.mp4 351 23 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/clock-battery-wears-out-after-moving-10000-c-charge-through-clock-rate-0500-ma A clock battery wears out after moving 10,000 C of charge through the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe10/thumbs-ed1ch20pe10-00002.png A clock battery wears out after moving 10,000 C of charge through the clock at a rate of 0.500 mA. (a) How long did the clock run? (b) How many electrons per second flowed? https://seo-videos.collegephysicsanswers.com/ch20/pe10/ed1ch20pe10.mp4 80 232 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-released-neutron-induced-fission-similar-spontaneous-fission (a) Calculate the energy released in the neutron-induced fission… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe43/thumbs-ed1ch32pe43-00002.png (a) Calculate the energy released in the neutron-induced fission (similar to the spontaneous fission in Example 32.3 wheren + {}^{238} U \to {}^{96} Sr + {}^{140} Xe + 3ngiven that m({}^{96} Sr = 95.921750 u and m({}^{140} Xe = 139.92164 u . (b) This result is about 6 MeV greater than the result for spontaneous fission. Why? (c) Confirm that the total number of nucleons and total charge are conserved in this reaction. https://seo-videos.collegephysicsanswers.com/ch32/pe43/ed1ch32pe43.mp4 144 34 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-gas-would-have-atoms-moving-fast-enough-bring-two-3textrmhe (a) What temperature gas would have atoms moving fast enough to bring… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe41/thumbs-ed1ch32pe41-00002.png (a) What temperature gas would have atoms moving fast enough to bring two {}^{3} He nuclei into contact? Note that, because both are moving, the average kinetic energy only needs to be half the electric potential energy of these doubly charged nuclei when just in contact with one another. (b) Does this high temperature imply practical difficulties for doing this in controlled fusion? https://seo-videos.collegephysicsanswers.com/ch32/pe41/ed1ch32pe41.mp4 217 10 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-energy-released-neutron-induced-fission-reaction-n-239textrmpu (a) Calculate the energy released in the neutron-induced fission… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe45/thumbs-ed1ch32pe45-00002.png (a) Calculate the energy released in the neutron-induced fission reactionn + {}^{239} Pu \to {}^{96} Sr + {}^{140} Ba + 4ngiven that m({}^{96} Sr = 95.921750 u and m({}^{140} Ba = 139.910581 u . (b) Confirm that the total number of nucleons and total charge are conserved in this reaction. https://seo-videos.collegephysicsanswers.com/ch32/pe45/ed1ch32pe45.mp4 106 69 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-mass-converted-energy-120-kt-bomb Find the mass converted into energy by a 12.0-kT bomb. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe51/thumbs-ed1ch32pe51-00002.png Find the mass converted into energy by a 12.0-kT bomb. https://seo-videos.collegephysicsanswers.com/ch32/pe51/ed1ch32pe51.mp4 33 19 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-number-grams-deuterium-80000-l-swimming-pool-given-deuterium-00150 (a) Calculate the number of grams of deuterium in an 80,000-L… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe33/thumbs-ed1ch32pe33-00002.png (a) Calculate the number of grams of deuterium in an 80,000-L swimming pool, given deuterium is 0.0150% of natural hydrogen. (b) Find the energy released in joules if this deuterium is fused via the reaction {}^{2} H + {}^{2} H \to {}^{3} He + n. (c) Could the neutrons be used to create more energy? (d) Discuss the amount of this type of energy in a swimming pool as compared to that in, say, a gallon of gasoline, also taking into consideration that water is far more abundant. https://seo-videos.collegephysicsanswers.com/ch32/pe33/ed1ch32pe33.mp4 390 37 2 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/breeding-plutonium-produces-energy-even-any-plutonium-fissioned-primary-purpose Breeding plutonium produces energy even before any plutonium is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe47/thumbs-ed1ch32pe47-00002.png Breeding plutonium produces energy even before any plutonium is fissioned. (The primary purpose of the four nuclear reactors at Chernobyl was breeding plutonium for weapons. Electrical power was a by-product used by the civilian population.) Calculate the energy produced in each of the reactions listed for plutonium breeding just following Example 32.4. The pertinent masses are m({}^{239} U ) = 239.054289 u , m({}^{239} Np ) = 239.052932 u , and m({}^{239} Pu ) = 239.052157 u . https://seo-videos.collegephysicsanswers.com/ch32/pe47/ed1ch32pe47.mp4 104 22 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/laser-system-tested-inertial-confinement-can-produce-100-kj-pulse-only-100-ns The laser system tested for inertial confinement can produce a 100-kJ… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe39/thumbs-ed1ch32pe39-00002.png The laser system tested for inertial confinement can produce a 100-kJ pulse only 1.00 ns in duration. (a) What is the power output of the laser system during the brief pulse? (b) How many photons are in the pulse, given their wavelength is 1.06 μm? (c) What is the total momentum of all these photons? (d) How does the total photon momentum compare with that of a single 1.00 MeV deuterium nucleus? https://seo-videos.collegephysicsanswers.com/ch32/pe39/ed1ch32pe39.mp4 303 12 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/fusion-bombs-use-neutrons-their-fission-trigger-create-tritium-fuel-reaction-n Fusion bombs use neutrons from their fission trigger to create… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe53/thumbs-ed1ch32pe53-00002.png Fusion bombs use neutrons from their fission trigger to create tritium fuel in the reaction n + {}^{6} Li \to {}^{3} H + {}^{4} He . What is the energy released by this reaction in MeV? https://seo-videos.collegephysicsanswers.com/ch32/pe53/ed1ch32pe53.mp4 78 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electrical-power-output-large-nuclear-reactor-facility-900-mw-it-has-350 The electrical power output of a large nuclear reactor facility is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe49/thumbs-ed1ch32pe49-00002.png The electrical power output of a large nuclear reactor facility is 900 MW. It has a 35.0% efficiency in converting nuclear power to electrical. (a) What is the thermal nuclear power output in megawatts? (b) How many {}^{235} U nuclei fission each second, assuming the average fission produces 200 MeV? (c) What mass of {}^{235} U is fissioned in one year of full-power operation? https://seo-videos.collegephysicsanswers.com/ch32/pe49/ed1ch32pe49.mp4 167 33 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/it-estimated-weapons-tests-atmosphere-have-deposited-approximately-9-mci It is estimated that weapons tests in the atmosphere have deposited… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe59/thumbs-ed1ch32pe59-00002.png It is estimated that weapons tests in the atmosphere have deposited approximately 9 MCi of {}^{90} Sr on the surface of the earth. Find the mass of this amount of {}^{90} Sr . https://seo-videos.collegephysicsanswers.com/ch32/pe59/ed1ch32pe59.mp4 119 13 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-scheme-put-nuclear-weapons-nonmilitary-use-explode-them-underground One scheme to put nuclear weapons to nonmilitary use is to explode… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe61/thumbs-ed1ch32pe61-00002.png One scheme to put nuclear weapons to nonmilitary use is to explode them underground in a geologically stable region and extract the geothermal energy for electricity production. There was a total yield of about 4,000 MT in the combined arsenals in 2006. If 1.00 MT per day could be converted to electricity with an efficiency of 10.0%: (a) What would the average electrical power output be? (b) How many years would the arsenal last at this rate? https://seo-videos.collegephysicsanswers.com/ch32/pe61/ed1ch32pe61.mp4 138 28 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-total-energy-released-mev-each-carbon-cycle-elaborated-below-including (a) Find the total energy released in MeV in each carbon cycle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe37/thumbs-ed1ch32pe37-00002.png (a) Find the total energy released in MeV in each carbon cycle (elaborated below) including the annihilation energy. (b) How does this compare with the proton-proton cycle output? https://seo-videos.collegephysicsanswers.com/ch32/pe37/ed1ch32pe37.mp4 452 2 5 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assume-one-fourth-yield-typical-320-kt-strategic-bomb-comes-fission-reactions Assume one-fourth of the yield of a typical 320-kT strategic bomb… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch32/pe57/thumbs-ed1ch32pe57-00002.png Assume one-fourth of the yield of a typical 320-kT strategic bomb comes from fission reactions averaging 200 MeV and the remainder from fusion reactions averaging 20 MeV. (a) Calculate the number of fissions and the approximate mass of uranium and plutonium fissioned, taking the average atomic mass to be 238. (b) Find the number of fusions and calculate the approximate mass of fusion fuel, assuming an average total atomic mass of the two nuclei in each reaction to be 5. (c) Considering the masses found, does it seem reasonable that some missiles could carry 10 warheads? Discuss, noting that the nuclear fuel is only a part of the mass of a warhead. https://seo-videos.collegephysicsanswers.com/ch32/pe57/ed1ch32pe57.mp4 225 48 2019-05-08 yes 2019-05-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-w-created-bubble-chamber-lives-500times-10-25textrm-s-what-distance-does Suppose a W^- created in a bubble chamber lives for 5.00 x 10^{-25} s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe07/thumbs-ed1ch33pe07-00002.png Suppose a W^- created in a bubble chamber lives for 5.00 x 10^{-25} s . What distance does it move in this time if it is travelling at 0.900c? Since this distance is too short to make a track, the presence of the W^- must be inferred from its decay products. Note that the time is longer than the given W^- lifetime, which can be due to the statistical nature of decay or due to time dilation. https://seo-videos.collegephysicsanswers.com/ch33/pe07/ed1ch33pe07.mp4 24 14 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ratio-strong-weak-force-and-ratio-strong-force-electromagnetic-force-become-1 The ratio of the strong to the weak force and the ratio of the strong… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe05/thumbs-ed1ch33pe05-00002.png The ratio of the strong to the weak force and the ratio of the strong force to the electromagnetic force become 1 under circumstances where they are unified. What are the ratios of the strong force to those two forces under normal circumstances? https://seo-videos.collegephysicsanswers.com/ch33/pe05/ed1ch33pe05.mp4 36 9 5 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-large-rocket-has-mass-200-times-106-kg-takeoff-and-its Integrated Concepts A large rocket has a mass of 2.00 x 10^6 kg at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe45/thumbs-ed1ch04pe45-00002.png Integrated Concepts A large rocket has a mass of 2.00 x 10^6 kg at takeoff, and its engines produce a thrust of 3.50 x 10^7 N . (a) Find its initial acceleration if it takes off vertically. (b) How long does it take to reach a velocity of 120 km/h straight up, assuming constant mass and thrust? (c) In reality, the mass of a rocket decreases significantly as its fuel is consumed. Describe qualitatively how this affects the acceleration and time for this motion. https://seo-videos.collegephysicsanswers.com/ch04/pe45/ed1ch04pe45.mp4 205 272 3.5 2018-02-28 yes 2018-02-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/320-km-long-slac-produces-beam-500-gev-electrons-if-there-are-15000-accelerating The 3.20-km-long SLAC produces a beam of 50.0-GeV electrons. If there… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe09/thumbs-ed1ch33pe09-00002.png The 3.20-km-long SLAC produces a beam of 50.0-GeV electrons. If there are 15,000 accelerating tubes, what average voltage must be across the gaps between them to achieve this energy? https://seo-videos.collegephysicsanswers.com/ch33/pe09/ed1ch33pe09.mp4 88 18 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-theoretical-particle-may-be-associated-unification-electroweak-and-strong The mass of a theoretical particle that may be associated with the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe15/thumbs-ed1ch33pe15-00002.png The mass of a theoretical particle that may be associated with the unification of the electroweak and strong forces is 10 x 10^{14} GeV/c ^2 . (a) How many proton masses is this? (b) How many electron masses is this? (This indicates how extremely relativistic the accelerator would have to be in order to make the particle, and how large the relativistic quantity \gamma would have to be.) https://seo-videos.collegephysicsanswers.com/ch33/pe15/ed1ch33pe15.mp4 45 18 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/virtual-particle-having-approximate-mass-10times-1014textrm-gevc2-may-be A virtual particle having an approximate mass of 10 x 10^{14} GeV/c… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe01/thumbs-ed1ch33pe01-00002.png A virtual particle having an approximate mass of 10 x 10^{14} GeV/c ^2 may be associated with the unification of the strong and electroweak forces. For what length of time could this virtual particle exist (in temporary violation of the conservation of mass-energy as allowed by the Heisenberg uncertainty principle)? https://d1igkeoc1zsqhw.cloudfront.net/ch33/pe01/ed1ch33pe01.mp4 138 86 2019-05-15 no 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/another-component-strong-nuclear-force-transmitted-exchange-virtual-k-mesons Another component of the strong nuclear force is transmitted by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe03/thumbs-ed1ch33pe03-00002.png Another component of the strong nuclear force is transmitted by the exchange of virtual K^-mesons. Taking K^- mesons to have an average mass of 495 MeV/c ^2, what is the approximate range of this component of the strong force? https://seo-videos.collegephysicsanswers.com/ch33/pe03/ed1ch33pe03.mp4 168 22 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-uncertainty-energy-released-decay-pi0-due-its-short-lifetime-b-what (a) What is the uncertainty in the energy released in the decay of a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe19/thumbs-ed1ch33pe19-00002.png (a) What is the uncertainty in the energy released in the decay of a \pi^0 due to its short lifetime? (b) What fraction of the decay energy is this, noting that the decay mode is \pi^0 \to \gamma + \gamma (so that all the \pi^0 mass is destroyed)? https://seo-videos.collegephysicsanswers.com/ch33/pe19/ed1ch33pe19.mp4 84 17 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/reaction-pi-p-delta-described-preceding-problem-takes-place-strong-force-what The reaction \pi^+ p \to \Delta^{++} (described in the preceding… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe23/thumbs-ed1ch33pe23-00002.png The reaction \pi^+ p \to \Delta^{++} (described in the preceding problem) takes place via the strong force. (a) What is the baryon number of the \Delta^{++} particle? (b) Draw a Feynman diagram of the reaction showing the individual quarks involved. https://seo-videos.collegephysicsanswers.com/ch33/pe23/ed1ch33pe23.mp4 129 8 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-exercise-514-car-four-wheel-drive-exercise-514-calculate-maximum Repeat Exercise 5.14 for a car with four-wheel drive.**Exercise… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe15/thumbs-ed1ch05pe15-00002.png Repeat Exercise 5.14 for a car with four-wheel drive.**Exercise 5.14**: Calculate the maximum acceleration of a car that is heading up a 4° slope (one that makes an angle of 4° with the horizontal) under the following road conditions. Assume that only half the weight of the car is supported by the two drive wheels and that the coefficient of static friction is involved—that is, the tires are not allowed to slip during the acceleration. (Ignore rolling.) (a) On dry concrete. (b) On wet concrete. (c) On ice, assuming that \mu\_s = 0.100, the same as for shoes on ice. https://seo-videos.collegephysicsanswers.com/ch05/pe15/ed1ch05pe15.mp4 252 250 3 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-mode-positive-tau-tau-mu-numu-barnutau-what-energy-released-b-verify The decay mode of the positive tau is \tau^+ \to \mu^+ + \nu_\mu +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe17/thumbs-ed1ch33pe17-00002.png The decay mode of the positive tau is \tau^+ \to \mu^+ + \nu_\mu + \bar{\nu}_\tau. (a) What energy is released? (b) Verify that charge and lepton family numbers are conserved. (c) The \tau^+ is the antiparticle of the \tau^-.Verify that all the decay products of the \tau^+ are the antiparticles of those in the decay of the \tau^- given in the text. https://seo-videos.collegephysicsanswers.com/ch33/pe17/ed1ch33pe17.mp4 167 24 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-mu-e-nue-numu-possible-considering-appropriate-conservation-laws-state-why Is the decay \mu^- \to e^- + \nu_e + \nu_\mu possible considering the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe29/thumbs-ed1ch33pe29-00002.png Is the decay \mu^- \to e^- + \nu_e + \nu_\mu possible considering the appropriate conservation laws? State why or why not. https://seo-videos.collegephysicsanswers.com/ch33/pe29/ed1ch33pe29.mp4 48 8 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/three-quarks-form-baryon-how-many-combinations-six-known-quarks-are-there-if-all (a) Three quarks form a baryon. How many combinations of the six… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe33/thumbs-ed1ch33pe33-00002.png (a) Three quarks form a baryon. How many combinations of the six known quarks are there if all combinations are possible? (b) This number is less than the number of known baryons. Explain why. https://seo-videos.collegephysicsanswers.com/ch33/pe33/ed1ch33pe33.mp4 49 2 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-its-quark-composition-delta-particle-could-be-excited-state-proton-b (a) Verify from its quark composition that the \Delta^+ particle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe21/thumbs-ed1ch33pe21-00002.png (a) Verify from its quark composition that the \Delta^+ particle could be an excited state of the proton. (b) There is a spread of about 100 MeV in the decay energy of the \Delta^+, interpreted as uncertainty due to its short lifetime. What is its approximate lifetime? (c) Does its decay proceed via the strong or weak force? https://seo-videos.collegephysicsanswers.com/ch33/pe21/ed1ch33pe21.mp4 181 18 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-decay-modes-omega-minus-omega-lambda0-k-what-change-strangeness-verify One of the decay modes of the omega minus is \Omega^- \to \Lambda^0 +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe25/thumbs-ed1ch33pe25-00002.png One of the decay modes of the omega minus is \Omega^- \to \Lambda^0 + K^- (a) What is the change in strangeness? (b) Verify that baryon number and charge are conserved, while lepton numbers are unaffected. (c) Write the equation in terms of the constituent quarks, indicating that the weak force is responsible. https://seo-videos.collegephysicsanswers.com/ch33/pe25/ed1ch33pe25.mp4 157 40 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/one-decay-mode-eta-zero-meson-eta0-pi0-pi0-write-decay-terms-quark-constituents One decay mode for the eta-zero meson is \eta^0 \to \pi^0 + \pi^0 (a)… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe27/thumbs-ed1ch33pe27-00002.png One decay mode for the eta-zero meson is \eta^0 \to \pi^0 + \pi^0 (a) Write the decay in terms of the quark constituents. (b) How much energy is released? (c) What is the ultimate release of energy, given the decay mode for the pi zero is \pi^0 \to \gamma + \gamma? https://seo-videos.collegephysicsanswers.com/ch33/pe27/ed1ch33pe27.mp4 130 20 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-particle-has-quark-composition-bartextrmubartextrmubartextrmd-b-what-should (a) What particle has the quark composition \bar{ u }\bar{ u }\bar{ d… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe41/thumbs-ed1ch33pe41-00002.png (a) What particle has the quark composition \bar{ u }\bar{ u }\bar{ d }? (b) What should its decay mode be? https://seo-videos.collegephysicsanswers.com/ch33/pe41/ed1ch33pe41.mp4 51 2 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/decay-sigma-n-pi-possible-considering-appropriate-conservation-laws-state-why-or (a) Is the decay \Sigma^- \to n + \pi^- possible considering the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe31/thumbs-ed1ch33pe31-00002.png (a) Is the decay \Sigma^- \to n + \pi^- possible considering the appropriate conservation laws? State why or why not. (b) Write the decay in terms of the quark constituents of the particles. https://seo-videos.collegephysicsanswers.com/ch33/pe31/ed1ch33pe31.mp4 124 4 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-quantum-numbers-given-omega-table-332-adding-quantum-numbers-its-quark Verify the quantum numbers given for the \Omega^+ in [Table… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe35/thumbs-ed1ch33pe35-00002.png Verify the quantum numbers given for the \Omega^+ in [Table 33.2](https://cnx.org/contents/jQSmhtXo@23.1:ptmm4LhN@7/33-4-Particles-Patterns-and-Conservation-Laws) by adding the quantum numbers for its quark constituents as inferred from [Table 33.4](https://cnx.org/contents/jQSmhtXo@23.1:4shStql_@7/33-5-Quarks-Is-That-All-There-Is). https://seo-videos.collegephysicsanswers.com/ch33/pe35/ed1ch33pe35.mp4 108 2 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/maintain-constant-speed-force-provided-cars-engine-must-equal-drag-force-plus To maintain a constant speed, the force provided by a car's engine… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe23/thumbs-ed1ch05pe23-00002.png To maintain a constant speed, the force provided by a car's engine must equal the drag force plus the force of friction of the road (the rolling resistance). (a) What are the magnitudes of drag forces at 70 km/h and 100 km/h for a Toyota Camry? (Drag area is 0.70 m ^2) (b) What is the magnitude of drag force at 70 km/h and 100 km/h for a Hummer H2? (Drag area is 2.44 m ^2) Assume all values are accurate to three significant digits. https://seo-videos.collegephysicsanswers.com/ch05/pe23/ed1ch05pe23.mp4 107 458 5 2018-03-09 yes 2018-03-09T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-energy-would-be-released-if-proton-did-decay-conjectured-reaction-p-pi0 (a) How much energy would be released if the proton did decay via the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe37/thumbs-ed1ch33pe37-00002.png (a) How much energy would be released if the proton did decay via the conjectured reaction p \to \pi^0 + e^+ ? (b) Given that the \pi^0 decays to two \gammas and that the e^+ will find an electron to annihilate, what total energy is ultimately produced in proton decay? (c) Why is this energy greater than the proton's total mass (converted to energy)? https://seo-videos.collegephysicsanswers.com/ch33/pe37/ed1ch33pe37.mp4 141 54 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/there-are-particles-called-d-mesons-one-them-d-meson-which-has-single-positive There are particles called D-mesons. One of them is the D^+ meson,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe39/thumbs-ed1ch33pe39-00002.png There are particles called D-mesons. One of them is the D^+ meson, which has a single positive charge and a baryon number of zero, also the value of its strangeness, topness, and bottomness. It has a charm of +1. What is its quark configuration? https://seo-videos.collegephysicsanswers.com/ch33/pe39/ed1ch33pe39.mp4 110 4 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/intensity-cosmic-ray-radiation-decreases-rapidly-increasing-energy-there-are The intensity of cosmic ray radiation decreases rapidly with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe43/thumbs-ed1ch33pe43-00002.png The intensity of cosmic ray radiation decreases rapidly with increasing energy, but there are occasionally extremely energetic cosmic rays that create a shower of radiation from all the particles they create by striking a nucleus in the atmosphere as seen in the figure given below. Suppose a cosmic ray particle having an energy of 10^{10} GeV converts its energy into particles with masses averaging 200 MeV/c ^2. (a) How many particles are created? (b) If the particles rain down on a 1.00 km ^2 area, how many particles are there per square meter? https://seo-videos.collegephysicsanswers.com/ch33/pe43/ed1ch33pe43.mp4 94 24 5 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-wavelength-50-gev-electron-which-produced-slac-provides-idea-limit-detail What is the wavelength of a 50-GeV electron, which is produced at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe45/thumbs-ed1ch33pe45-00002.png What is the wavelength of a 50-GeV electron, which is produced at SLAC? This provides an idea of the limit to the detail it can probe. https://seo-videos.collegephysicsanswers.com/ch33/pe45/ed1ch33pe45.mp4 116 12 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-are-designing-proton-decay-experiment-and-you-can-detect-50-percent Suppose you are designing a proton decay experiment and you can… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe49/thumbs-ed1ch33pe49-00002.png Suppose you are designing a proton decay experiment and you can detect 50 percent of the proton decays in a tank of water. (a) How many kilograms of water would you need to see one decay per month, assuming a lifetime of 10^{31} y ? (b) How many cubic meters of water is this? (c) If the actual lifetime is 10^{33} y , how long would you have to wait on an average to see a single proton decay? https://seo-videos.collegephysicsanswers.com/ch33/pe49/ed1ch33pe49.mp4 301 28 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/primary-decay-mode-negative-pion-pi-mu-barnumu-what-energy-release-mev-decay-b The primary decay mode for the negative pion is \pi^- \to \mu^- +… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch33/pe47/thumbs-ed1ch33pe47-00002.png The primary decay mode for the negative pion is \pi^- \to \mu^- + \bar{\nu}_\mu. (a) What is the energy release in MeV in this decay? (b) Using conservation of momentum, how much energy does each of the decay products receive, given the \pi^- is at rest when it decays? You may assume the muon antineutrino is massless and has momentum p = \dfrac{E}{c}, just like a photon. https://seo-videos.collegephysicsanswers.com/ch33/pe47/ed1ch33pe47.mp4 444 20 2019-05-15 yes 2019-05-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-approximate-mass-luminous-matter-milky-way-galaxy-given-it-has Find the approximate mass of the luminous matter in the Milky Way… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe01/thumbs-ed1ch34pe01-00002.png Find the approximate mass of the luminous matter in the Milky Way galaxy, given it has approximately 10^{11} stars of average mass 1.5 times that of our Sun. https://d1igkeoc1zsqhw.cloudfront.net/ch34/pe01/ed1ch34pe01.mp4 31 17 2019-05-17 no 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/average-how-far-away-are-galaxies-are-moving-away-us-20-speed-light On average, how far away are galaxies that are moving away from us at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe05/thumbs-ed1ch34pe05-00002.png On average, how far away are galaxies that are moving away from us at 2.0% of the speed of light? https://seo-videos.collegephysicsanswers.com/ch34/pe05/ed1ch34pe05.mp4 57 5 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-approximate-speed-relative-us-galaxy-near-edge-known-universe-some-10-gly (a) What is the approximate speed relative to us of a galaxy near the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe07/thumbs-ed1ch34pe07-00002.png (a) What is the approximate speed relative to us of a galaxy near the edge of the known universe, some 10 Gly away? (b) What fraction of the speed of light is this? Note that we have observed galaxies moving away from us at greater than 0.9c. https://seo-videos.collegephysicsanswers.com/ch34/pe07/ed1ch34pe07.mp4 59 34 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-circular-orbit-sun-about-center-milky-way-galaxy-calculate-its-orbital Assuming a circular orbit for the Sun about the center of the Milky… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe09/thumbs-ed1ch34pe09-00002.png Assuming a circular orbit for the Sun about the center of the Milky Way galaxy, calculate its orbital speed using the following information: The mass of the galaxy is equivalent to a single mass 1.5 x 10^{11} times that of the Sun (or 3 x 10^{14} kg ), located 30,000 ly away. https://seo-videos.collegephysicsanswers.com/ch34/pe09/ed1ch34pe09.mp4 113 15 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/andromeda-galaxy-closest-large-galaxy-and-visible-naked-eye-estimate-its Andromeda galaxy is the closest large galaxy and is visible to the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe11/thumbs-ed1ch34pe11-00002.png Andromeda galaxy is the closest large galaxy and is visible to the naked eye. Estimate its brightness relative to the Sun, assuming it has luminosity 10^{12} times that of the Sun and lies 2 Mly away. https://seo-videos.collegephysicsanswers.com/ch34/pe11/ed1ch34pe11.mp4 93 23 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/black-holes-masses-smaller-those-formed-supernovas-may-have-been-created-big Black holes with masses smaller than those formed in supernovas may… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe23/thumbs-ed1ch34pe23-00002.png Black holes with masses smaller than those formed in supernovas may have been created in the Big Bang. Calculate the radius of one that has a mass equal to the Earth's. https://seo-videos.collegephysicsanswers.com/ch34/pe23/ed1ch34pe23.mp4 36 4 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/average-particle-energy-needed-observe-unification-forces-estimated-be-1019-gev The average particle energy needed to observe unification of forces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe13/thumbs-ed1ch34pe13-00002.png The average particle energy needed to observe unification of forces is estimated to be 10^{19} GeV . (a) What is the rest mass in kilograms of a particle that has a rest mass of 10^{19} GeV/c ^2 ? (b) How many times the mass of a hydrogen atom is this? https://seo-videos.collegephysicsanswers.com/ch34/pe13/ed1ch34pe13.mp4 92 7 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-dark-matter-milky-way-were-composed-entirely-machos-evidence-shows-it-not If the dark matter in the Milky Way were composed entirely of MACHOs… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe27/thumbs-ed1ch34pe27-00002.png If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not), approximately how many would there have to be? Assume the average mass of a MACHO is 1/1000 that of the Sun, and that dark matter has a mass 10 times that of the luminous Milky Way galaxy with its 10^{11} stars of average mass 1.5 times the Sun’s mass. https://seo-videos.collegephysicsanswers.com/ch34/pe27/ed1ch34pe27.mp4 58 8 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/section-superconducting-wire-carries-current-100-and-requires-100-l-liquid A section of superconducting wire carries a current of 100 A and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe31/thumbs-ed1ch34pe31-00002.png A section of superconducting wire carries a current of 100 A and requires 1.00 L of liquid nitrogen per hour to keep it below its critical temperature. For it to be economically advantageous to use a superconducting wire, the cost of cooling the wire must be less than the cost of energy lost to heat in the wire. Assume that the cost of liquid nitrogen is 0.30 per liter, and that electric energy costs 0.10 per kW·h. What is the resistance of a normal wire that costs as much in wasted electric energy as the cost of liquid nitrogen for the superconductor? https://seo-videos.collegephysicsanswers.com/ch34/pe31/ed1ch34pe31.mp4 133 18 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-hubble-constant-corresponds-approximate-age-universe-1010-y-get-approximate (a) What Hubble constant corresponds to an approximate age of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe15/thumbs-ed1ch34pe15-00002.png (a) What Hubble constant corresponds to an approximate age of the universe of 10^{10} y ? To get an approximate value, assume the expansion rate is constant and calculate the speed at which two galaxies must move apart to be separated by 1 Mly (present average galactic separation) in a time of 10^{10} y (b) Similarly, what Hubble constant corresponds to a universe approximately 2 x 10^{10} y old? https://seo-videos.collegephysicsanswers.com/ch34/pe15/ed1ch34pe15.mp4 209 15 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-radius-bobsled-turn-banked-750deg-and-taken-300-ms-assuming-it-ideally (a) What is the radius of a bobsled turn banked at 75.0° and taken at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe27/thumbs-ed1ch06pe27-00002.png (a) What is the radius of a bobsled turn banked at 75.0° and taken at 30.0 m/s, assuming it is ideally banked? (b) Calculate the centripetal acceleration. (c) Does this acceleration seem large to you? https://seo-videos.collegephysicsanswers.com/ch06/pe27/ed1ch06pe27.mp4 95 465 4.5 2018-03-14 yes 2018-03-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-mass-jupiter-based-data-orbit-one-its-moons-and-compare-your-result-its Find the mass of Jupiter based on data for the orbit of one of its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe45/thumbs-ed1ch06pe45-00002.png Find the mass of Jupiter based on data for the orbit of one of its moons, and compare your result with its actual mass. https://seo-videos.collegephysicsanswers.com/ch06/pe45/ed1ch06pe45.mp4 185 274 5 2018-03-15 yes 2018-03-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-open-heart-surgery-defibrillator-can-be-used-bring-patient-out-cardiac During open-heart surgery, a defibrillator can be used to bring a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe08/thumbs-ed1ch20pe08-00002.png During open-heart surgery, a defibrillator can be used to bring a patient out of cardiac arrest. The resistance of the path is 500 \Omega and a 10.0 mA current is needed. What voltage should be applied? https://seo-videos.collegephysicsanswers.com/ch20/pe08/ed1ch20pe08.mp4 31 75 4.5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-effective-resistance-cars-starter-motor-when-150-flows-through-it-car-0 What is the effective resistance of a car’s starter motor when 150 A… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe20/thumbs-ed1ch20pe20-00002.png What is the effective resistance of a car’s starter motor when 150 A flows through it as the car battery applies 11.0 V to the motor? https://seo-videos.collegephysicsanswers.com/ch20/pe20/ed1ch20pe20.mp4 31 77 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-voltage-drop-extension-cord-having-00600textrm-omega-resistance-and-through (a) Find the voltage drop in an extension cord having a 0.0600 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe22/thumbs-ed1ch20pe22-00002.png (a) Find the voltage drop in an extension cord having a 0.0600 \Omega resistance and through which 5.00 A is flowing. (b) A cheaper cord utilizes thinner wire and has a resistance of 0.300 \Omega. What is the voltage drop in it when 5.00 A flows? (c) Why is the voltage to whatever appliance is being used reduced by this amount? What is the effect on the appliance? https://seo-videos.collegephysicsanswers.com/ch20/pe22/ed1ch20pe22.mp4 118 122 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electronic-device-designed-operate-any-temperature-range-100circtextrmc An electronic device designed to operate at any temperature in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe32/thumbs-ed1ch20pe32-00002.png An electronic device designed to operate at any temperature in the range from -10.0° C to 55.0° C contains pure carbon resistors. By what factor does their resistance increase over this range? https://seo-videos.collegephysicsanswers.com/ch20/pe32/ed1ch20pe32.mp4 188 51 5 2020-08-12 yes 2020-08-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/jogging-hard-surfaces-insufficiently-padded-shoes-produces-large-forces-feet-and Jogging on hard surfaces with insufficiently padded shoes produces… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe53/thumbs-ed1ch07pe53-00002.png Jogging on hard surfaces with insufficiently padded shoes produces large forces in the feet and legs. (a) Calculate the magnitude of the force needed to stop the downward motion of a jogger’s leg, if his leg has a mass of 13.0 kg, a speed of 6.00 m/s, and stops in a distance of 1.50 cm. (Be certain to include the weight of the 75.0-kg jogger’s body.) (b) Compare this force with the weight of the jogger. https://seo-videos.collegephysicsanswers.com/ch07/pe53/ed1ch07pe53.mp4 222 109 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/shoveling-snow-can-be-extremely-taxing-because-arms-have-such-low-efficiency Shoveling snow can be extremely taxing because the arms have such a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe51/thumbs-ed1ch07pe51-00002.png Shoveling snow can be extremely taxing because the arms have such a low efficiency in this activity. Suppose a person shoveling a footpath metabolizes food at the rate of 800 W. (a) What is her useful power output? (b) How long will it take her to lift 3000 kg of snow 1.20 m? (This could be the amount of heavy snow on 20 m of footpath.) (c) How much waste heat transfer in kilojoules will she generate in the process? https://seo-videos.collegephysicsanswers.com/ch07/pe51/ed1ch07pe51.mp4 154 194 4 2018-03-18 yes 2018-03-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-advertisement-claims-its-900-kg-car-accelerated-rest-300-ms-and-drove-100-km A car advertisement claims that its 900-kg car accelerated from rest… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe65/thumbs-ed1ch07pe65-00002.png A car advertisement claims that its 900-kg car accelerated from rest to 30.0 m/s and drove 100 km, gaining 3.00 km in altitude, on 1.0 gal of gasoline. The average force of friction including air resistance was 700 N. Assume all values are known to three significant figures. (a) Calculate the car’s efficiency. (b) What is unreasonable about the result? (c) Which premise is unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch07/pe65/ed1ch07pe65.mp4 220 56 5 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/105-kg-basketball-player-crouches-down-0400-m-while-waiting-jump-after-exerting A 105-kg basketball player crouches down 0.400 m while waiting to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe69/thumbs-ed1ch07pe69-00002.png A 105-kg basketball player crouches down 0.400 m while waiting to jump. After exerting a force on the floor through this 0.400 m, his feet leave the floor and his center of gravity rises 0.950 m above its normal standing erect position. (a) Using energy considerations, calculate his velocity when he leaves the floor. (b) What average force did he exert on the floor? (Do not neglect the force to support his weight as well as that to accelerate him.) (c) What was his power output during the acceleration phase? https://seo-videos.collegephysicsanswers.com/ch07/pe69/ed1ch07pe69.mp4 441 111 2.7 2018-03-19 yes 2018-03-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cruise-ship-mass-100-times-107-kg-strikes-pier-speed-0750-ms-it-comes-rest-600-m A cruise ship with a mass of 1.00 x 10^7 kg strikes a pier at a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe15/thumbs-ed1ch08pe15-00002.png A cruise ship with a mass of 1.00 x 10^7 kg strikes a pier at a speed of 0.750 m/s. It comes to rest 6.00 m later, damaging the ship, the pier, and the tugboat captain’s finances. Calculate the average force exerted on the pier using the concept of impulse. (Hint: First calculate the time it took to bring the ship to rest.) https://seo-videos.collegephysicsanswers.com/ch08/pe15/ed1ch08pe15.mp4 185 670 5 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/starting-definitions-momentum-and-kinetic-energy-derive-equation-kinetic-energy Starting with the definitions of momentum and kinetic energy, derive… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe19/thumbs-ed1ch08pe19-00002.png Starting with the definitions of momentum and kinetic energy, derive an equation for the kinetic energy of a particle expressed as a function of its momentum. https://seo-videos.collegephysicsanswers.com/ch08/pe19/ed1ch08pe19.mp4 121 146 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-constant-temperature-coefficient-resistivity-what-maximum-percent Assuming a constant temperature coefficient of resistivity, what is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe34/thumbs-ed1ch20pe34-00002.png Assuming a constant temperature coefficient of resistivity, what is the maximum percent decrease in the resistance of a constantan wire starting at 20.0° C ? https://seo-videos.collegephysicsanswers.com/ch20/pe34/ed1ch20pe34.mp4 177 33 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-power-100times-102textrm-mv-lightening-bolt-having-current-200times What is the power of a 1.00 x 10^{2} MV lightening bolt having a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe40/thumbs-ed1ch20pe40-00002.png What is the power of a 1.00 x 10^{2} MV lightening bolt having a current of 2.00 x 10^{4} A https://seo-videos.collegephysicsanswers.com/ch20/pe40/ed1ch20pe40.mp4 29 110 4 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-energy-unit-equivalence-1textrm-kwcdottextrmh-360times-106textrm-j Verify the energy unit equivalence that 1 kW \cdot h = 3.60 x 10^{6}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe48/thumbs-ed1ch20pe48-00002.png Verify the energy unit equivalence that 1 kW \cdot h = 3.60 x 10^{6} J . https://seo-videos.collegephysicsanswers.com/ch20/pe48/ed1ch20pe48.mp4 61 12 5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-mass-and-speed-data-example-81-and-assuming-football-player-catches-ball Using mass and speed data from Example 8.1 and assuming that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe33/thumbs-ed1ch08pe33-00002.png Using mass and speed data from Example 8.1 and assuming that the football player catches the ball with his feet off the ground with both of them moving horizontally, calculate: (a) the final velocity if the ball and player are going in the same direction and (b) the loss of kinetic energy in this case. (c) Repeat parts (a) and (b) for the situation in which the ball and the player are going in opposite directions. Might the loss of kinetic energy be related to how much it hurts to catch the pass?**Example 8.1**:(a) Calculate the momentum of a 110-kg football player running at 8.00 m/s. (b) Compare the player’s momentum with the momentum of a hard-thrown 0.410-kg football that has a speed of 25.0 m/s. https://seo-videos.collegephysicsanswers.com/ch08/pe33/ed1ch08pe33.mp4 241 164 3 2018-03-21 yes 2018-03-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-height-meters-person-who-6-ft-10-tall-assume-1-meter-equals-3937 What is the height in meters of a person who is 6 ft 1.0 in. tall?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe06/thumbs-ed1ch01pe06-00002.png What is the height in meters of a person who is 6 ft 1.0 in. tall? (Assume that 1 meter equals 39.37 in.) https://seo-videos.collegephysicsanswers.com/ch01/pe06/ed1ch01pe06.mp4 154 202 4.8 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-piloted-satellites-approaching-one-another-relative-speed-0250-ms-intending Two piloted satellites approaching one another, at a relative speed… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe35/thumbs-ed1ch08pe35-00002.png Two piloted satellites approaching one another, at a relative speed of 0.250 m/s, intending to dock. The first has a mass of 4.00 x 10^3 kg , and the second a mass of 7.50 x 10^3 kg . (a) Calculate the final velocity (after docking) by using the frame of reference in which the first satellite was originally at rest. (b) What is the loss of kinetic energy in this inelastic collision? (c) Repeat both parts by using the frame of reference in which the second satellite was originally at rest. Explain why the change in velocity is different in the two frames, whereas the change in kinetic energy is the same in both. https://seo-videos.collegephysicsanswers.com/ch08/pe35/ed1ch08pe35.mp4 419 298 5 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/during-circus-act-elderly-performer-thrills-crowd-catching-cannon-ball-shot-him During a circus act, an elderly performer thrills the crowd by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe43/thumbs-ed1ch08pe43-00002.png During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of 10.0 kg and the horizontal component of its velocity is 8.00 m/s when the 65.0-kg performer catches it. If the performer is on nearly frictionless roller skates, what is his recoil velocity? https://seo-videos.collegephysicsanswers.com/ch08/pe43/ed1ch08pe43.mp4 78 207 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-football-players-collide-head-midair-while-trying-catch-thrown-football Two football players collide head-on in midair while trying to catch… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe41/thumbs-ed1ch08pe41-00002.png Two football players collide head-on in midair while trying to catch a thrown football. The first player is 95.0 kg and has an initial velocity of 6.00 m/s, while the second player is 115 kg and has an initial velocity of –3.50 m/s. What is their velocity just after impact if they cling together? https://seo-videos.collegephysicsanswers.com/ch08/pe41/ed1ch08pe41.mp4 89 380 5 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/3000-kg-cannon-mounted-so-it-can-recoil-only-horizontal-direction-calculate-its A 3000-kg cannon is mounted so that it can recoil only in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe47/thumbs-ed1ch08pe47-00002.png A 3000-kg cannon is mounted so that it can recoil only in the horizontal direction. (a) Calculate its recoil velocity when it fires a 15.0-kg shell at 480 m/s at an angle of above the horizontal. (b) What is the kinetic energy of the cannon? This energy is dissipated as heat transfer in shock absorbers that stop its recoil. (c) What happens to the vertical component of momentum that is imparted to the cannon when it is fired? https://seo-videos.collegephysicsanswers.com/ch08/pe47/ed1ch08pe47.mp4 128 355 4.3 2018-04-02 yes 2018-04-02T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electric-water-heater-consumes-500-kw-200-h-day-what-cost-running-it-one-year-if An electric water heater consumes 5.00 kW for 2.00 h per day. What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe50/thumbs-ed1ch20pe50-00002.png An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one year if electricity costs 12.0 cents/KW \cdot h ? See Figure 20.41. https://seo-videos.collegephysicsanswers.com/ch20/pe50/ed1ch20pe50.mp4 72 189 5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-mechanical-advantage-nail-puller-similar-one-shown-figure-922-where-you What is the mechanical advantage of a nail puller—similar to the one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe19/thumbs-ed1ch09pe19-00002.png What is the mechanical advantage of a nail puller—similar to the one shown in Figure 9.22 —where you exert a force 45 cm from the pivot and the nail is 1.8 cm on the other side? What minimum force must you exert to apply a force of 1250 N to the nail? https://seo-videos.collegephysicsanswers.com/ch09/pe19/ed1ch09pe19.mp4 77 583 5 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/repeat-exercise-924-pulley-shown-figure-925c-assuming-you-pull-straight-rope Repeat Exercise 9.24 for the pulley shown in Figure 9.25(c), assuming… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe25/thumbs-ed1ch09pe25-00002.png Repeat Exercise 9.24 for the pulley shown in Figure 9.25(c), assuming you pull straight up on the rope. The pulley system's mass is 7.00 kg.**Exercise 9.24**: If you used an ideal pulley of the type shown in Figure 9.25(a) to support a car engine of mass 115 kg, (a) What would be the tension in the rope? (b) What force must the ceiling supply, assuming you pull straight down on the rope? https://seo-videos.collegephysicsanswers.com/ch09/pe25/ed1ch09pe25.mp4 120 206 5 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-muscles-back-leg-pull-achilles-tendon-shown-figure-938-what-total-force-do Two muscles in the back of the leg pull on the Achilles tendon as… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe27/thumbs-ed1ch09pe27-00002.png Two muscles in the back of the leg pull on the Achilles tendon as shown in Figure 9.38. What total force do they exert? https://seo-videos.collegephysicsanswers.com/ch09/pe27/ed1ch09pe27.mp4 116 259 5 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-two-children-are-using-uniform-seesaw-300-m-long-and-has-its-center-mass Suppose two children are using a uniform seesaw that is 3.00 m long… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe39/thumbs-ed1ch09pe39-00002.png Suppose two children are using a uniform seesaw that is 3.00 m long and has its center of mass over the pivot. The first child has a mass of 30.0 kg and sits 1.40 m from the pivot. (a) Calculate where the second 18.0 kg child must sit to balance the seesaw. (b) What is unreasonable about the result? (c) Which premise is unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch09/pe39/ed1ch09pe39.mp4 89 124 4 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/00-gauge-copper-wire-has-diameter-9266-mm-calculate-power-loss-kilometer-such 00-gauge copper wire has a diameter of 9.266 mm. Calculate the power… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe58/thumbs-ed1ch20pe58-00002.png 00-gauge copper wire has a diameter of 9.266 mm. Calculate the power loss in a kilometer of such wire when it carries 1.00 x 10^{2} A . https://seo-videos.collegephysicsanswers.com/ch20/pe58/ed1ch20pe58.mp4 121 60 5 2020-08-14 yes 2020-08-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/your-cars-300-w-headlight-and-240-kw-starter-are-ordinarily-connected-parallel Your car’s 30.0-W headlight and 2.40-kW starter are ordinarily… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe05/thumbs-ed1ch21pe05-00002.png Your car’s 30.0-W headlight and 2.40-kW starter are ordinarily connected in parallel in a 12.0-V system. What power would one headlight and the starter consume if connected in series to a 12.0-V battery? (Neglect any other resistance in the circuit and any change in resistance in the two devices.) https://seo-videos.collegephysicsanswers.com/ch21/pe05/ed1ch21pe05.mp4 192 258 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-second-equation-example-215-substituting-values-found-currents-i1-and-i2 Verify the second equation in Example 21.5 by substituting the values… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe33/thumbs-ed1ch21pe33-00002.png Verify the second equation in Example 21.5 by substituting the values found for the currents I\_1 and I\_2.The equation is -3I\_2 + 18 - 6I\_1 = 0. I\_1 = 4.75 A , I\_2 = -3.50 A . https://seo-videos.collegephysicsanswers.com/ch21/pe33/ed1ch21pe33.mp4 30 70 5 2018-05-03 yes 2018-05-03T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/100-momega-voltmeter-placed-parallel-750-komega-resistor-circuit-draw-circuit A 1.00 M \Omega voltmeter is placed in parallel with a 75.0 k \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe53/thumbs-ed1ch21pe53-00002.png A 1.00 M \Omega voltmeter is placed in parallel with a 75.0 k \Omega resistor in a circuit. (a) Draw a circuit diagram of the connection. (b) What is the resistance of the combination? (c) If the voltage across the combination is kept the same as it was across the 75.0 k \Omega resistor alone, what is the percent increase in current? (d) If the current through the combination is kept the same as it was through the 75.0 k \Omega resistor alone, what is the percentage decrease in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss. https://seo-videos.collegephysicsanswers.com/ch21/pe53/ed1ch21pe53.mp4 324 49 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-average-pressure-exerted-palm-shot-putters-hand-shot-if-area-contact Calculate the average pressure exerted on the palm of a shot-putter's… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe21/thumbs-ed1ch11pe21-00002.png Calculate the average pressure exerted on the palm of a shot-putter's hand by the shot if the area of contact is 50.0 cm ^2 and he exerts a force of 800 N on it. Express the pressure in N/m ^2 and compare it with the 1.00 x 10^6 Pa pressures sometimes encountered in the skeletal system. https://seo-videos.collegephysicsanswers.com/ch11/pe21/ed1ch11pe21.mp4 61 136 5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-total-force-rectangular-dam-due-water-behind-it-increases-square-water Show that the total force on a rectangular dam due to the water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe23/thumbs-ed1ch11pe23-00002.png Show that the total force on a rectangular dam due to the water behind it increases with the square of the water depth. In particular, show that this force is given by F= \dfrac{\rho g h^2 L}{2} , where \rho is the density of water, h is its depth at the dam, and L is the length of the dam. You may assume the face of the dam is vertical. (Hint: Calculate the average pressure exerted and multiply this by the area in contact with the water. (See Figure 11.41.) https://seo-videos.collegephysicsanswers.com/ch11/pe23/ed1ch11pe23.mp4 86 175 4.5 2018-05-10 yes 2018-05-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-two-soap-bubbles-touch-larger-inflated-smaller-until-they-form-single When two soap bubbles touch, the larger is inflated by the smaller… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch11/pe65/thumbs-ed1ch11pe65-00002.png When two soap bubbles touch, the larger is inflated by the smaller until they form a single bubble. (a) What is the gauge pressure inside a soap bubble with a 1.50-cm radius? (b) Inside a 4.00-cm-radius soap bubble? (c) Inside the single bubble they form if no air is lost when they touch? https://seo-videos.collegephysicsanswers.com/ch11/pe65/ed1ch11pe65.mp4 138 77 2018-05-11 yes 2018-05-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-950-efficiency-conversion-electrical-power-motor-what-current-must-120 (a) Assuming 95.0% efficiency for the conversion of electrical power… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe64/thumbs-ed1ch20pe64-00002.png (a) Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 750-kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 2.00 x 10^{2} m high hill in 2.00 min at a constant 25.0-m/s speed while exerting 5.00 x 10^{2} N of force to overcome air resistance and friction? (c) To travel at a constant 25.0-m/s speed, exerting a 5.00 x 10^{2} N force to overcome air resistance and friction? See Figure 20.44. https://seo-videos.collegephysicsanswers.com/ch20/pe64/ed1ch20pe64.mp4 400 110 5 2020-08-18 yes 2020-08-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-cost-heating-hot-tub-containing-1500-kg-water-100circtextrmc-400circtextrmc (a) What is the cost of heating a hot tub containing 1500 kg of water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe68/thumbs-ed1ch20pe68-00002.png (a) What is the cost of heating a hot tub containing 1500 kg of water from 10.0° C to 40.0° C , assuming 75.0% efficiency to account for heat transfer to the surroundings? The cost of electricity is 9 cents/kW ⋅ h . (b) What current was used by the 220-V AC electric heater, if this took 4.00 h? https://seo-videos.collegephysicsanswers.com/ch20/pe68/ed1ch20pe68.mp4 288 53 5 2020-08-18 yes 2020-08-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/aluminum-power-transmission-line-has-resistance-00580-omega-textrmkm-what-its (a) An aluminum power transmission line has a resistance of 0.0580… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe66/thumbs-ed1ch20pe66-00002.png (a) An aluminum power transmission line has a resistance of 0.0580 \Omega /km . What is its mass per kilometer? (b) What is the mass per kilometer of a copper line having the same resistance? https://seo-videos.collegephysicsanswers.com/ch20/pe66/ed1ch20pe66.mp4 258 22 5 2020-08-18 yes 2020-08-18T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-pressure-has-units-energy-unit-volume Verify that pressure has units of energy per unit volume. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch12/pe17/thumbs-ed1ch12pe17-00002.png Verify that pressure has units of energy per unit volume. https://seo-videos.collegephysicsanswers.com/ch12/pe17/ed1ch12pe17.mp4 60 114 2018-05-29 yes 2018-05-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-circuit-breaker-trips-when-rms-current-150-what-corresponding-peak A certain circuit breaker trips when the rms current is 15.0 A. What… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe74/thumbs-ed1ch20pe74-00002.png A certain circuit breaker trips when the rms current is 15.0 A. What is the corresponding peak current? https://seo-videos.collegephysicsanswers.com/ch20/pe74/ed1ch20pe74.mp4 31 54 5 2020-08-19 yes 2020-08-19T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/start-car-engine-car-battery-moves-375-times-1021-electrons-through-starter To start a car engine, the car battery moves 3.75 x 10^{21} electrons… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe03/thumbs-ed1ch18pe03-00002.png To start a car engine, the car battery moves 3.75 x 10^{21} electrons through the starter motor. How many coulombs of charge were moved? https://seo-videos.collegephysicsanswers.com/ch18/pe03/ed1ch18pe03.mp4 20 228 5 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-speck-dust-electrostatic-precipitator-has-10000-times-1012-protons-it Suppose a speck of dust in an electrostatic precipitator has 1.0000 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe05/thumbs-ed1ch18pe05-00002.png Suppose a speck of dust in an electrostatic precipitator has 1.0000 x 10^{12} protons in it and has a net charge of –5.00 nC (a very large charge for a small speck). How many electrons does it have? https://seo-videos.collegephysicsanswers.com/ch18/pe05/ed1ch18pe05.mp4 149 332 5 2018-06-06 yes 2018-06-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bare-free-charges-do-not-remain-stationary-when-close-together-illustrate Bare free charges do not remain stationary when close together. To… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch18/pe17/thumbs-ed1ch18pe31-00002.png Bare free charges do not remain stationary when close together. To illustrate this, calculate the acceleration of two isolated protons separated by 2.00 nm (a typical distance between gas atoms). Explicitly show how you follow the steps in the Problem-Solving Strategy for electrostatics. https://seo-videos.collegephysicsanswers.com/ch18/pe17/ed1ch18pe31.mp4 85 236 5 2018-06-08 yes 2018-06-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/can-contains-375-ml-soda-how-much-left-after-308-ml-removed A can contains 375 mL of soda. How much is left after 308 mL is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe16/thumbs-ed1ch01pe16-00002.png A can contains 375 mL of soda. How much is left after 308 mL is removed? https://seo-videos.collegephysicsanswers.com/ch01/pe16/ed1ch01pe16.mp4 173 138 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-peak-current-through-500-w-room-heater-operates-120-v-ac-power What is the peak current through a 500-W room heater that operates on… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe80/thumbs-ed1ch20pe80-00002.png What is the peak current through a 500-W room heater that operates on 120-V AC power? https://seo-videos.collegephysicsanswers.com/ch20/pe80/ed1ch20pe80.mp4 65 87 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/nichrome-wire-used-some-radiative-heaters-find-resistance-needed-if-average Nichrome wire is used in some radiative heaters. (a) Find the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe82/thumbs-ed1ch20pe82-00002.png Nichrome wire is used in some radiative heaters. (a) Find the resistance needed if the average power output is to be 1.00 kW utilizing 120-V AC. (b) What length of Nichrome wire, having a cross-sectional area of 5.00 mm ^2, is needed if the operating temperature is 500° C ? (c) What power will it draw when first switched on? https://seo-videos.collegephysicsanswers.com/ch20/pe82/ed1ch20pe82.mp4 313 37 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/amplitude-lightly-damped-oscillator-decreases-30-during-each-cycle-what The amplitude of a lightly damped oscillator decreases by 3.0% during… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe41/thumbs-ed1ch16pe41-00002.png The amplitude of a lightly damped oscillator decreases by 3.0% during each cycle. What percentage of the mechanical energy of the oscillator is lost in each cycle? https://seo-videos.collegephysicsanswers.com/ch16/pe41/ed1ch16pe41.mp4 98 205 5 2018-06-25 yes 2018-06-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-two-times-first-period-following-t0-does-instantaneous-voltage-60hz-ac (a) At what two times in the first period following t=0 does the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe84/thumbs-ed1ch20pe84-00002.png (a) At what two times in the first period following t=0 does the instantaneous voltage in 60=Hz AC equal V_{ rms }? (b) -V_{ rms } https://seo-videos.collegephysicsanswers.com/ch20/pe84/ed1ch20pe84.mp4 428 44 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/small-office-building-air-conditioner-operates-408-v-ac-and-consumes-500-kw-what A small office-building air conditioner operates on 408-V AC and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe78/thumbs-ed1ch20pe78-00002.png A small office-building air conditioner operates on 408-V AC and consumes 50.0 kW. (a) What is its effective resistance? (b) What is the cost of running the air conditioner during a hot summer month when it is on 8.00 h per day for 30 days and electricity costs 9.00 cents/kW \cdot? https://seo-videos.collegephysicsanswers.com/ch20/pe78/ed1ch20pe78.mp4 73 63 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/wave-traveling-slinkyr-stretched-4-m-takes-24-s-travel-length-slinky-and-back A wave traveling on a Slinky® that is stretched to 4 m takes 2.4 s to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe61/thumbs-ed1ch16pe61-00002.png A wave traveling on a Slinky® that is stretched to 4 m takes 2.4 s to travel the length of the Slinky and back again. (a) What is the speed of the wave? (b) Using the same Slinky stretched to the same length, a standing wave is created which consists of three antinodes and four nodes. At what frequency must the Slinky be oscillating? https://seo-videos.collegephysicsanswers.com/ch16/pe61/ed1ch16pe61.mp4 113 309 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/increase-intensity-wave-factor-50-what-factor-should-amplitude-be-increased To increase intensity of a wave by a factor of 50, by what factor… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch16/pe65/thumbs-ed1ch16pe65-00002.png To increase intensity of a wave by a factor of 50, by what factor should the amplitude be increased? https://seo-videos.collegephysicsanswers.com/ch16/pe65/ed1ch16pe65.mp4 115 123 5 2018-06-26 yes 2018-06-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-change-length-300-cm-long-column-mercury-if-its-temperature-changes What is the change in length of a 3.00-cm-long column of mercury if… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch13/pe11/thumbs-ed1ch13pe11-00002.png What is the change in length of a 3.00-cm-long column of mercury if its temperature changes from 37.0° C to 40.0° C , assuming the mercury is unconstrained? https://seo-videos.collegephysicsanswers.com/ch13/pe11/ed1ch13pe11.mp4 98 161 2018-06-27 yes 2018-06-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/while-taking-bath-person-touches-metal-case-radio-path-through-person-drainpipe While taking a bath, a person touches the metal case of a radio. The… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe88/thumbs-ed1ch20pe88-00002.png While taking a bath, a person touches the metal case of a radio. The path through the person to the drainpipe and ground has a resistance of 4000 \Omega. What is the smallest voltage on the case of the radio that could cause ventricular fibrillation? https://seo-videos.collegephysicsanswers.com/ch20/pe88/ed1ch20pe88.mp4 63 28 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spectator-parade-receives-888-hz-tone-oncoming-trumpeter-who-playing-880-hz-note A spectator at a parade receives an 888-Hz tone from an oncoming… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch17/pe33/thumbs-ed1ch17pe33-00002.png A spectator at a parade receives an 888-Hz tone from an oncoming trumpeter who is playing an 880-Hz note. At what speed is the musician approaching if the speed of sound is 338 m/s? https://seo-videos.collegephysicsanswers.com/ch17/pe33/ed1ch17pe33.mp4 168 140 4.3 2018-09-20 yes 2018-09-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-meteors-sometimes-strike-earth-converting-most-their-kinetic-energy Large meteors sometimes strike the Earth, converting most of their… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch14/pe67/thumbs-ed1ch14pe67-00002.png Large meteors sometimes strike the Earth, converting most of their kinetic energy into thermal energy. (a) What is the kinetic energy of a 10^9 kg meteor moving at 25.0 km/s? (b) If this meteor lands in a deep ocean and 80% of its kinetic energy goes into heating water, how many kilograms of water could it raise by 5.0 C ° (c) Discuss how the energy of the meteor is more likely to be deposited in the ocean and the likely effects of that energy. https://seo-videos.collegephysicsanswers.com/ch14/pe67/ed1ch14pe67.mp4 103 39 2018-09-28 yes 2018-09-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-change-internal-energy-car-if-you-put-120-gal-gasoline-its-tank-energy What is the change in internal energy of a car if you put 12.0 gal of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe01/thumbs-ed1ch15pe01-00002.png What is the change in internal energy of a car if you put 12.0 gal of gasoline into its tank? The energy content of gasoline is 1.3 x 10^8 J/gal . All other factors, such as the car's temperature, are constant. https://d1igkeoc1zsqhw.cloudfront.net/ch15/pe01/ed1ch15pe01.mp4 57 188 2018-10-10 no 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-woman-does-500-j-work-and-9500-j-heat-transfer-occurs-environment Suppose a woman does 500 J of work and 9500 J of heat transfer occurs… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe05/thumbs-ed1ch15pe05-00002.png Suppose a woman does 500 J of work and 9500 J of heat transfer occurs into the environment in the process. (a) What is the decrease in her internal energy, assuming no change in temperature or consumption of food? (That is, there is no other energy transfer.) (b) What is her efficiency? https://seo-videos.collegephysicsanswers.com/ch15/pe05/ed1ch15pe05.mp4 99 225 5 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-average-metabolic-rate-watts-man-who-metabolizes-10500-kj-food-energy-one (a) What is the average metabolic rate in watts of a man who… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch15/pe07/thumbs-ed1ch15pe07-00002.png (a) What is the average metabolic rate in watts of a man who metabolizes 10,500 kJ of food energy in one day? (b) What is the maximum amount of work in joules he can do without breaking down fat, assuming a maximum efficiency of 20.0%? (c) Compare his work output with the daily output of a 187-W (0.250-horsepower) motor. https://seo-videos.collegephysicsanswers.com/ch15/pe07/ed1ch15pe07.mp4 115 251 3.7 2018-10-10 yes 2018-10-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-shows-staged-lasers-use-moving-mirrors-swing-beams-and-create-colorful Light shows staged with lasers use moving mirrors to swing beams and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe03/thumbs-ed1ch25pe03-00002.png Light shows staged with lasers use moving mirrors to swing beams and create colorful effects. Show that a light ray reflected from a mirror changes direction by \theta when the mirror is rotated by an angle 2\theta. https://seo-videos.collegephysicsanswers.com/ch25/pe03/ed1ch25pe03.mp4 128 151 4 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-slide-projector-has-100-mm-focal-length-lens-how-far-away-screen-if A certain slide projector has a 100 mm focal length lens. (a) How far… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch25/pe41/thumbs-ed1ch25pe41-00002.png A certain slide projector has a 100 mm focal length lens. (a) How far away is the screen, if a slide is placed 103 mm from the lens and produces a sharp image? (b) If the slide is 24.0 by 36.0 mm, what are the dimensions of the image? Explicitly show how you follow the steps in the Problem- Solving Strategy for lenses. https://seo-videos.collegephysicsanswers.com/ch25/pe41/ed1ch25pe41.mp4 170 243 3.5 2018-10-30 yes 2018-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-momentum-helium-nucleus-having-mass-668-times-10-27-kg-moving-0200c Find the momentum of a helium nucleus having a mass of 6.68 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch28/pe35/thumbs-ed1ch28pe35-00002.png Find the momentum of a helium nucleus having a mass of 6.68 x 10^{-27} kg that is moving at 0.200c. https://seo-videos.collegephysicsanswers.com/ch28/pe35/ed1ch28pe35.mp4 65 199 5 2019-01-25 yes 2019-01-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/write-complete-decay-equation-given-nuclide-complete-aztextrmxn-notation-refer-2 Write the complete decay equation for the given nuclide in the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch31/pe23/thumbs-ed1ch31pe23-00002.png Write the complete decay equation for the given nuclide in the complete ^A\_Z X \_N notation. Refer to the periodic table for values of Z:\alpha decay of ^{210} Po , the isotope of polonium in the decay series of ^{238} U that was discovered by the Curies. A favorite isotope in physics labs, since it has a short half-life and decays to a stable nuclide. https://seo-videos.collegephysicsanswers.com/ch31/pe23/ed1ch31pe23.mp4 40 117 2019-03-08 yes 2019-03-08T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/distances-nearest-stars-500-ly-away-can-be-measured-technique-called-parallax Distances to the nearest stars (up to 500 ly away) can be measured by… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch34/pe19/thumbs-ed1ch34pe19-00002.png Distances to the nearest stars (up to 500 ly away) can be measured by a technique called parallax, as shown in Figure 34.26. What are the angles \theta_1 and \theta_2 relative to the plane of the Earth's orbit for a star 4.0 ly directly above the Sun? https://seo-videos.collegephysicsanswers.com/ch34/pe19/ed1ch34pe19.mp4 49 3 2019-05-17 yes 2019-05-17T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/referring-figure-2034-find-time-systolic-pressure-lags-behind-middle-qrs-complex (a) Referring to Figure 20.34, find the time systolic pressure lags… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe96/thumbs-ed1ch20pe96-00002.png (a) Referring to Figure 20.34, find the time systolic pressure lags behind the middle of the QRS complex. (b) Discuss the reasons for the time lag. https://seo-videos.collegephysicsanswers.com/ch20/pe96/ed1ch20pe96.mp4 136 16 5 2020-08-20 yes 2020-08-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/generation-about-one-third-lifetime-approximately-how-many-generations-have A generation is about one-third of a lifetime. Approximately how many… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe30/thumbs-ed1ch01pe30-00002.png A generation is about one-third of a lifetime. Approximately how many generations have passed since the year 0 AD? https://seo-videos.collegephysicsanswers.com/ch01/pe30/ed1ch01pe30.mp4 109 241 4 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-non-metric-units-were-used-united-kingdom-unit-mass-called-pound-mass-lbm When non-metric units were used in the United Kingdom, a unit of mass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe26/thumbs-ed1ch01pe26-00002.png When non-metric units were used in the United Kingdom, a unit of mass called the pound-mass (lbm) was employed, where 1 lbm = 0.4539 kg . (a) If there is an uncertainty of 0.0001 kg in the pound-mass unit, what is its percent uncertainty? (b) Based on that percent uncertainty, what mass in pound-mass has an uncertainty of 1 kg when converted to kilograms? https://seo-videos.collegephysicsanswers.com/ch01/pe26/ed1ch01pe26.mp4 168 167 3.5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/car-engine-moves-piston-circular-cross-section-7500-pm-0002-cm-diameter-distance A car engine moves a piston with a circular cross section of 7.500 ±… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe28/thumbs-ed1ch01pe28-00002.png A car engine moves a piston with a circular cross section of 7.500 ± 0.002 cm diameter a distance of 3.250 ± 0.001 cm to compress the gas in the cylinder. (a) By what amount is the gas decreased in volume in cubic centimeters? (b) Find the uncertainty in this volume. https://seo-videos.collegephysicsanswers.com/ch01/pe28/ed1ch01pe28.mp4 276 249 3.8 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/marathon-runner-completes-42188-km-course-2-h-30-min-and-12-s-there-uncertainty A marathon runner completes a 42.188 km course in 2 h, 30 min, and 12… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe24/thumbs-ed1ch01pe24-00002.png A marathon runner completes a 42.188 km course in 2 h, 30 min, and 12 s. There is an uncertainty of 25 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (a) Calculate the percent uncertainty in the distance. (b) Calculate the uncertainty in the elapsed time. (c) What is the average speed in meters per second? (d) What is the uncertainty in the average speed? https://seo-videos.collegephysicsanswers.com/ch01/pe24/ed1ch01pe24.mp4 388 298 4.3 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-area-circle-3102-cm-diameter What is the area of a circle 3.102 cm in diameter? | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe22/thumbs-ed1ch01pe22-00002.png What is the area of a circle 3.102 cm in diameter? https://seo-videos.collegephysicsanswers.com/ch01/pe22/ed1ch01pe22.mp4 77 204 5 2018-02-06 yes 2018-02-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-does-nail-puller-exercise-919-exert-supporting-surface-nail-puller What force does the nail puller in Exercise 9.19 exert on the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe23/thumbs-ed1ch09pe23-00002.png What force does the nail puller in Exercise 9.19 exert on the supporting surface? The nail puller has a mass of 2.10 kg.**Exercise 9.19**: What is the mechanical advantage of a nail puller—similar to the one shown in Figure 9.24 —where you exert a force 45 cm from the pivot and the nail is 1.8 cm on the other side? What minimum force must you exert to apply a force of 1250 N to the nail? https://seo-videos.collegephysicsanswers.com/ch09/pe23/ed1ch09pe23.mp4 143 124 4.3 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-fraction-earths-diameter-greatest-ocean-depth-b-greatest-mountain-height (a) What fraction of Earth's diameter is the greatest ocean depth?… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe34/thumbs-ed1ch01pe34-00002.png (a) What fraction of Earth's diameter is the greatest ocean depth? (b) The greatest mountain height? https://seo-videos.collegephysicsanswers.com/ch01/pe34/ed1ch01pe34.mp4 72 142 5 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/express-train-passes-through-station-it-enters-initial-velocity-220-ms-and An express train passes through a station. It enters with an initial… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe36/thumbs-ed1ch02pe36-00002.png An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150 m/s ^2 as it goes through. The station is 210 m long. (a) How long is the nose of the train in the station? (b) How fast is it going when the nose leaves the station? (c) If the train is 130 m long, when does the end of the train leave the station? (d) What is the velocity of the end of the train as it leaves? https://seo-videos.collegephysicsanswers.com/ch02/pe36/ed1ch02pe36.mp4 491 430 5 2019-06-07 yes 2019-06-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/assuming-one-nerve-impulse-must-end-another-can-begin-what-maximum-firing-rate Assuming one nerve impulse must end before another can begin, what is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch01/pe36/thumbs-ed1ch01pe36-00002.png Assuming one nerve impulse must end before another can begin, what is the maximum firing rate of a nerve in impulses per second? https://seo-videos.collegephysicsanswers.com/ch01/pe36/ed1ch01pe36.mp4 69 79 4 2019-05-24 yes 2019-05-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/taking-slope-curve-figure-263-verify-acceleration-approximately-32-ms2-t-10-s By taking the slope of the curve in Figure 2.63, verify that the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe62/thumbs-ed1ch02pe62-00002.png By taking the slope of the curve in Figure 2.63, verify that the acceleration is approximately 3.2 m/s ^2 at t = 10 s . https://seo-videos.collegephysicsanswers.com/ch02/pe62/ed1ch02pe62.mp4 87 145 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ball-thrown-straight-it-passes-200-m-high-window-750-m-ground-its-path-and-takes A ball is thrown straight up. It passes a 2.00-m-high window 7.50 m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe54/thumbs-ed1ch02pe54-00002.png A ball is thrown straight up. It passes a 2.00-m-high window 7.50 m off the ground on its path up and takes 0.312 s to go past the window. What was the ball's initial velocity? https://seo-videos.collegephysicsanswers.com/ch02/pe54/ed1ch02pe54.mp4 259 238 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-268-shows-displacement-graph-particle-5-s-draw-corresponding-velocity-and Figure 2.68 shows the displacement graph for a particle for 5 s. Draw… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe66/thumbs-ed1ch02pe66-00002.png Figure 2.68 shows the displacement graph for a particle for 5 s. Draw the corresponding velocity and acceleration graphs. https://seo-videos.collegephysicsanswers.com/ch02/pe66/ed1ch02pe66.mp4 465 348 2.8 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/steel-ball-dropped-hard-floor-height-150-m-and-rebounds-height-145-m-calculate A steel ball is dropped onto a hard floor from a height of 1.50 m and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/pe56/thumbs-ed1ch02pe56-00002.png A steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45 m. (a) Calculate its velocity just before it strikes the floor. (b) Calculate its velocity just after it leaves the floor on its way back up. (c) Calculate its acceleration during contact with the floor if that contact lasts 0.0800 ms (8.00 x 10^{-5} s ) . (d) How much did the ball compress during its collision with the floor, assuming the floor is absolutely rigid? https://seo-videos.collegephysicsanswers.com/ch02/pe56/ed1ch02pe56.mp4 507 219 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/integrated-concepts-basketball-player-jumps-straight-ball-do-he-lowers-his-body Integrated Concepts: A basketball player jumps straight up for a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe46/thumbs-ed1ch04pe46-00002.png Integrated Concepts: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.900 m above the floor. (a) Calculate his velocity when he leaves the floor. (b) Calculate his acceleration while he is straightening his legs. He goes from zero to the velocity found in part (a) in a distance of 0.300 m. (c) Calculate the force he exerts on the floor to do this, given that his mass is 110 kg. https://seo-videos.collegephysicsanswers.com/ch04/pe46/ed1ch04pe46.mp4 380 380 5 2019-09-23 yes 2019-09-23T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/device-exercising-upper-leg-muscle-shown-figure-938-together-schematic A device for exercising the upper leg muscle is shown in Figure 9.38,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe29/thumbs-ed1ch09pe29-00002.png A device for exercising the upper leg muscle is shown in Figure 9.38, together with a schematic representation of an equivalent lever system. Calculate the force exerted by the upper leg muscle to lift the mass at a constant speed. Explicitly show how you follow the steps in the Problem- Solving Strategy for static equilibrium in Applications of Statistics, Including Problem-Solving Strategies. https://seo-videos.collegephysicsanswers.com/ch09/pe29/ed1ch09pe29.mp4 87 237 4.7 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/part-riding-bicycle-involves-leaning-correct-angle-when-making-turn-seen-figure Part of riding a bicycle involves leaning at the correct angle when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe28/thumbs-ed1ch06pe28-00002.png Part of riding a bicycle involves leaning at the correct angle when making a turn, as seen in Figure 6.36. To be stable, the force exerted by the ground must be on a line going through the center of gravity. The force on the bicycle wheel can be resolved into two perpendicular components—friction parallel to the road (this must supply the centripetal force), and the vertical normal force (which must equal the system's weight). (a) Show that \theta (as defined in the figure) is related to the speed v and radius of curvature r of the turn in the same way as for an ideally banked roadway—that is, \theta = \tan^-1{\dfrac{v^2}{rg}} (b) Calculate \theta for a 12.0 m/s turn of radius 30.0 m (as in a race). https://seo-videos.collegephysicsanswers.com/ch06/pe28/ed1ch06pe28.mp4 173 445 5 2019-09-30 yes 2019-09-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/we-analyzed-biceps-muscle-example-angle-between-forearm-and-upper-arm-set-90circ We analyzed the biceps muscle example with the angle between forearm… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe31/thumbs-ed1ch09pe31-00002.png We analyzed the biceps muscle example with the angle between forearm and upper arm set at 90°. Using the same numbers as in [Example 9.4](https://openstax.org/books/college-physics/pages/9-6-forces-and-torques-in-muscles-and-joints#fs-id1169737940047), find the force exerted by the biceps muscle when the angle is 120° and the forearm is in a downward position. https://seo-videos.collegephysicsanswers.com/ch09/pe31/ed1ch09pe31.mp4 187 173 3.5 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-pilot-flies-400-km-direction-60circ-north-east-and-then-flies-300-km Suppose a pilot flies 40.0 km in a direction 60° north of east and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe24/thumbs-ed1ch03pe24-00002.png Suppose a pilot flies 40.0 km in a direction 60° north of east and then flies 30.0 km in a direction 15° north of east as shown in Figure 3.61. Find her total distance \vec{R} from the starting point and the direction \theta of the straight-line path to the final position. Discuss qualitatively how this flight would be altered by a wind from the north and how the effect of the wind would depend on both wind speed and the speed of the plane relative to the air mass. https://seo-videos.collegephysicsanswers.com/ch03/pe24/ed1ch03pe24.mp4 273 518 5 2019-10-21 yes 2019-10-21T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-ranges-shown-projectiles-figure-340b-initial-velocity-50-ms-given-initial Verify the ranges shown for the projectiles in Figure 3.40(b) for an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe32/thumbs-ed1ch03pe32-00002.png Verify the ranges shown for the projectiles in Figure 3.40(b) for an initial velocity of 50 m/s at the given initial angles. https://seo-videos.collegephysicsanswers.com/ch03/pe32/ed1ch03pe32.mp4 84 152 5 2019-10-29 yes 2019-10-29T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/prove-trajectory-projectile-parabolic-having-form-y-ax-bx2-obtain-expression Prove that the trajectory of a projectile is parabolic, having the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe48/thumbs-ed1ch03pe48-00002.png Prove that the trajectory of a projectile is parabolic, having the form y = ax + bx^2. To obtain this expression, solve the equation x = v_{ox}t for t and substitute it into the expressions for y = v_{oy}t - \dfrac{1}{2}gt^2 (These equations describe the x and y positions of a projectile that starts at the origin.) You should obtain an equation of the form y = ax + bx^2 where a and b are constants. https://seo-videos.collegephysicsanswers.com/ch03/pe48/ed1ch03pe48.mp4 99 142 5 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bryan-allen-pedaled-human-powered-aircraft-across-english-channel-cliffs-dover Bryan Allen pedaled a human-powered aircraft across the English… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch03/pe52/thumbs-ed1ch03pe52-00002.png Bryan Allen pedaled a human-powered aircraft across the English Channel from the cliffs of Dover to Cap Gris-Nez on June 12, 1979. (a) He flew for 169 min at an average velocity of 3.53 m/s in a direction 45° south of east. What was his total displacement? (b) Allen encountered a headwind averaging 2.00 m/s almost precisely in the opposite direction of his motion relative to the Earth. What was his average velocity relative to the air? (c) What was his total displacement relative to the air mass? https://seo-videos.collegephysicsanswers.com/ch03/pe52/ed1ch03pe52.mp4 246 364 4.7 2019-10-31 yes 2019-10-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/unlike-most-other-muscles-our-bodies-masseter-muscle-jaw-illustrated-figure-943 Unlike most of the other muscles in our bodies, the masseter muscle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/pe35/thumbs-ed1ch09pe35-00002.png Unlike most of the other muscles in our bodies, the masseter muscle in the jaw, as illustrated in Figure 9.43, is attached relatively far from the joint, enabling large forces to be exerted by the back teeth. (a) Using the information in the figure, calculate the force exerted by the lower teeth on the bullet. (b) Calculate the force on the joint. https://seo-videos.collegephysicsanswers.com/ch09/pe35/ed1ch09pe35.mp4 112 217 5 2018-04-11 yes 2018-04-11T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/rocket-sled-shown-figure-433-decelerates-rate-201-ms2-its-passenger-has-mass-750 The rocket sled shown in Figure 4.33 decelerates at a rate of 201 m/s… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch04/pe12/thumbs-ed1ch04pe12-00002.png The rocket sled shown in Figure 4.33 decelerates at a rate of 201 m/s ^2. Its passenger has a mass of 75.0 kg. (a) Calculate the horizontal component of the force the seat exerts against his body. Compare this with his weight by using a ratio. (b) Calculate the direction and magnitude of the total force the seat exerts against his body. In this problem, the forces are exerted by the seat and restraining belts. https://seo-videos.collegephysicsanswers.com/ch04/pe12/ed1ch04pe12.mp4 182 230 5 2019-11-06 yes 2019-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/bridge-supported-two-piers-located-20-meters-apart-both-left-and-right-piers A bridge is supported by two piers located 20 meters apart. Both the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap07/thumbs-ed1ch09ap07-00002.png A bridge is supported by two piers located 20 meters apart. Both the left and right piers provide an upward force on the bridge, labeled FL and FR respectively. (a) If a 1000 kg car comes to rest at a point 5 meters from the left pier, how much force will the bridge provide to the left and right piers?(b) How will FL and FR change as the car drives to the right side of the bridge? https://seo-videos.collegephysicsanswers.com/ch09/ap07/ed1ch09ap07.mp4 155 24 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/young-student-you-likely-learned-simple-machines-are-capable-increasing-ability As a young student, you likely learned that simple machines are… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap09/thumbs-ed1ch09ap09-00002.png As a young student, you likely learned that simple machines are capable of increasing the ability to lift and move objects. Now, as an educated AP Physics student, you are aware that this capability is governed by the relationship between force and torque. In the space below, explain why torque is integral to the increase in force created by a simple machine. You may use an example or diagram to assist in your explanation. Be sure to cite the mechanical advantage in your explanation as well. https://seo-videos.collegephysicsanswers.com/ch09/ap09/ed1ch09ap09.mp4 104 4 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-following-not-example-object-undergoing-torque-car-rounding-bend-constant Which of the following is not an example of an object undergoing a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap01/thumbs-ed1ch09ap01-00002.png Which of the following is not an example of an object undergoing a torque? (a) A car is rounding a bend at a constant speed.(b) A merry-go-round increases from rest to a constant rotational speed.(c) A pendulum swings back and forth.(d) A bowling ball rolls down a bowling alley. https://seo-videos.collegephysicsanswers.com/ch09/ap01/ed1ch09ap01.mp4 91 24 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/group-students-stacking-set-identical-books-each-one-overhanging-one-below-it-1 A group of students is stacking a set of identical books, each one… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch09/ap05/thumbs-ed1ch09ap05-00002.png A group of students is stacking a set of identical books, each one overhanging the one below it by 1 inch. They would like to estimate how many books they could place on top of each other before the stack tipped. What information below would they need to know to make this calculation? (a) The mass of each book(b) The width of each book(c) The depth of each book (a) I only(b) I and II only(c) I and III only(d) II only(e) I, II, and III https://seo-videos.collegephysicsanswers.com/ch09/ap05/ed1ch09ap05.mp4 352 18 2018-04-12 yes 2018-04-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/when-rebuilding-her-cars-engine-physics-major-must-exert-300-n-force-insert-dry (a) When rebuilding her car's engine, a physics major must exert 300… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch05/pe02/thumbs-ed1ch05pe02-00002.png (a) When rebuilding her car's engine, a physics major must exert 300 N of force to insert a dry steel piston into a steel cylinder. What is the magnitude of the normal force between the piston and cylinder? (b) What is the magnitude of the force would she have to exert if the steel parts were oiled? https://seo-videos.collegephysicsanswers.com/ch05/pe02/ed1ch05pe02.mp4 110 597 3.5 2019-11-15 yes 2019-11-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mother-pushes-her-child-swing-so-his-speed-900-ms-lowest-point-his-path-swing A mother pushes her child on a swing so that his speed is 9.00 m/s at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe22/thumbs-ed1ch06pe22-00002.png A mother pushes her child on a swing so that his speed is 9.00 m/s at the lowest point of his path. The swing is suspended 2.00 m above the child's center of mass. (a) What is the magnitude of the centripetal acceleration of the child at the low point? (b) What is the magnitude of the force the child exerts on the seat if his mass is 18.0 kg? (c) What is unreasonable about these results? (d) Which premises are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch06/pe22/ed1ch06pe22.mp4 149 227 3.7 2019-11-20 yes 2019-11-20T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-centripetal-acceleration-needed-keep-moon-its-orbit-assuming-circular Calculate the centripetal acceleration needed to keep the Moon in its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe38/thumbs-ed1ch06pe38-00002.png Calculate the centripetal acceleration needed to keep the Moon in its orbit (assuming a circular orbit about a fixed Earth) using the formula a = \dfrac{v^2}{r}. This is based on part (b) of Example 6.6 https://seo-videos.collegephysicsanswers.com/ch06/pe38/ed1ch06pe38.mp4 63 91 5 2019-11-22 yes 2019-11-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-mass-sun-based-data-earths-orbit-and-compare-value-obtained-suns Calculate the mass of the Sun based on data for Earth's orbit and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe44/thumbs-ed1ch06pe44-00002.png Calculate the mass of the Sun based on data for Earth's orbit and compare the value obtained with the Sun's actual mass. https://seo-videos.collegephysicsanswers.com/ch06/pe44/ed1ch06pe44.mp4 98 426 5 2019-11-25 yes 2019-11-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-mass-jupiter-earth-based-data-table-62 Find the ratio of the mass of Jupiter to that of Earth based on data… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe46/thumbs-ed1ch06pe46-00002.png Find the ratio of the mass of Jupiter to that of Earth based on data in Table 6.2. https://seo-videos.collegephysicsanswers.com/ch06/pe46/ed1ch06pe46.mp4 217 122 5 2019-11-25 yes 2019-11-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mountain-100-km-person-exerts-gravitational-force-him-equal-200-his-weight A mountain 10.0 km from a person exerts a gravitational force on him… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch06/pe42/thumbs-ed1ch06pe42-00002.png A mountain 10.0 km from a person exerts a gravitational force on him equal to 2.00% of his weight. (a) Calculate the mass of the mountain. (b) Compare the mountain's mass with that of Earth. (c) What is unreasonable about these results? (d) Which premises are unreasonable or inconsistent? (Note that accurate gravitational measurements can easily detect the effect of nearby mountains and variations in local geology.) https://seo-videos.collegephysicsanswers.com/ch06/pe42/ed1ch06pe42.mp4 115 110 5 2019-11-25 yes 2019-11-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/boxing-gloves-are-padded-lessen-force-blow-calculate-force-exerted-boxing-glove Boxing gloves are padded to lessen the force of a blow. (a) Calculate… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe14/thumbs-ed1ch07pe14-00002.png Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) Calculate the force exerted by an identical blow in the days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) Discuss the magnitude of the force with glove on. Does it seem high enough to cause damage even though it is lower than the force with no glove? https://seo-videos.collegephysicsanswers.com/ch07/pe14/ed1ch07pe14.mp4 219 392 4.5 2020-01-07 yes 2020-01-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-available-energy-content-joules-battery-operates-200-w-electric-clock-18 (a) What is the available energy content, in joules, of a battery… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe40/thumbs-ed1ch07pe40-00002.png (a) What is the available energy content, in joules, of a battery that operates a 2.00-W electric clock for 18 months? (b) How long can a battery that can supply 8.00 x 10^{4} J run a pocket calculator that consumes energy at the rate of 1.00 x 10^{-3} W ? https://seo-videos.collegephysicsanswers.com/ch07/pe40/ed1ch07pe40.mp4 103 229 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-long-will-it-take-850-kg-car-useful-power-output-400-hp-1-hp-746-w-reach (a) How long will it take an 850-kg car with a useful power output of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe38/thumbs-ed1ch07pe38-00002.png (a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp = 746 W) to reach a speed of 15.0 m/ s, neglecting friction? (b) How long will this acceleration take if the car also climbs a 3.00-m-high hill in the process? https://seo-videos.collegephysicsanswers.com/ch07/pe38/ed1ch07pe38.mp4 297 371 5 2020-01-10 yes 2020-01-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/700-kg-swimmer-figure-743-starts-race-initial-velocity-125-ms-and-exerts-average The 70.0-kg swimmer in Figure 7.43 starts a race with an initial… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch07/pe62/thumbs-ed1ch07pe62-00002.png The 70.0-kg swimmer in Figure 7.43 starts a race with an initial velocity of 1.25 m/s and exerts an average force of 80.0 N backward with his arms during each 1.80 m long stroke. (a) What is his initial acceleration if water resistance is 45.0 N? (b) What is the subsequent average resistance force from the water during the 5.00 s it takes him to reach his top velocity of 2.50 m/s? (c) Discuss whether water resistance seems to increase linearly with velocity. https://seo-videos.collegephysicsanswers.com/ch07/pe62/ed1ch07pe62.mp4 351 68 3 2020-01-24 yes 2020-01-24T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/mass-earth-5972times-1024textrm-kg-and-its-orbital-radius-average-1496times The mass of Earth is 5.972 x 10^{24} kg and its orbital radius is an… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe06/thumbs-ed1ch08pe06-00002.png The mass of Earth is 5.972 x 10^{24} kg and its orbital radius is an average of 1.496 x 10^{11} m . Calculate its linear momentum. https://seo-videos.collegephysicsanswers.com/ch08/pe06/ed1ch08pe06.mp4 69 478 5 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/professional-boxer-hits-his-opponent-1000-n-horizontal-blow-lasts-0150-s A professional boxer hits his opponent with a 1000-N horizontal blow… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe10/thumbs-ed1ch08pe10-00002.png A professional boxer hits his opponent with a 1000-N horizontal blow that lasts for 0.150 s. (a) Calculate the impulse imparted by this blow. (b) What is the opponent’s final velocity, if his mass is 105 kg and he is motionless in midair when struck near his center of mass? (c) Calculate the recoil velocity of the opponent’s 10.0-kg head if hit in this manner, assuming the head does not initially transfer significant momentum to the boxer’s body. (d) Discuss the implications of your answers for parts (b) and (c). https://seo-videos.collegephysicsanswers.com/ch08/pe10/ed1ch08pe10.mp4 171 348 4.7 2020-01-31 yes 2020-01-31T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/00250-kg-bullet-accelerated-rest-speed-550-ms-300-kg-rifle-pain-rifles-kick-much A 0.0250-kg bullet is accelerated from rest to a speed of 550 m/s in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch08/pe38/thumbs-ed1ch08pe38-00002.png A 0.0250-kg bullet is accelerated from rest to a speed of 550 m/s in a 3.00-kg rifle. The pain of the rifle’s kick is much worse if you hold the gun loosely a few centimeters from your shoulder rather than holding it tightly against your shoulder. (a) Calculate the recoil velocity of the rifle if it is held loosely away from the shoulder. (b) How much kinetic energy does the rifle gain? (c) What is the recoil velocity if the rifle is held tightly against the shoulder, making the effective mass 28.0 kg? (d) How much kinetic energy is transferred to the rifle- shoulder combination? The pain is related to the amount of kinetic energy, which is significantly less in this latter situation. (e) Calculate the momentum of a 110-kg football player running at 8.00 m/s. Compare the player’s momentum with the momentum of a hard-thrown 0.410-kg football that has a speed of 25.0 m/s. Discuss its relationship to this problem. https://seo-videos.collegephysicsanswers.com/ch08/pe38/ed1ch08pe38.mp4 290 252 4 2020-03-05 yes 2020-03-05T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-ratio-diameter-aluminum-copper-wire-if-they-have-same-resistance-unit Find the ratio of the diameter of aluminum to copper wire, if they… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe27/thumbs-ed1ch20pe27-00002.png Find the ratio of the diameter of aluminum to copper wire, if they have the same resistance per unit length (as they might in household wiring). https://seo-videos.collegephysicsanswers.com/ch20/pe27/ed1ch20pe27.mp4 181 256 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-output-voltage-30000-v-lithium-cell-digital-wristwatch-draws-0300-ma-if What is the output voltage of a 3.0000-V lithium cell in a digital… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe16/thumbs-ed1ch21pe16-00002.png What is the output voltage of a 3.0000-V lithium cell in a digital wristwatch that draws 0.300 mA, if the cell’s internal resistance is 2.00 \Omega? https://seo-videos.collegephysicsanswers.com/ch21/pe16/ed1ch21pe16.mp4 46 209 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-resistors-one-having-resistance-145textrm-omega-are-connected-parallel Two resistors, one having a resistance of 145 \Omega , are connected… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe12/thumbs-ed1ch21pe12-00002.png Two resistors, one having a resistance of 145 \Omega , are connected in parallel to produce a total resistance of 150 \Omega . (a) What is the value of the second resistance? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch21/pe12/ed1ch21pe12.mp4 114 52 4 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/standard-automobile-batteries-have-six-lead-acid-cells-series-creating-total-emf Standard automobile batteries have six lead-acid cells in series,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe14/thumbs-ed1ch21pe14-00002.png Standard automobile batteries have six lead-acid cells in series, creating a total emf of 12.0 V. What is the emf of an individual lead-acid cell? https://seo-videos.collegephysicsanswers.com/ch21/pe14/ed1ch21pe14.mp4 110 86 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/childs-electronic-toy-supplied-three-158-v-alkaline-cells-having-internal A child’s electronic toy is supplied by three 1.58-V alkaline cells… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe24/thumbs-ed1ch21pe24-00002.png A child’s electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 \Omega in series with a 1.53-V carbon-zinc dry cell having a 0.100 \Omega internal resistance. The load resistance is 10.0 \Omega. (a) Draw a circuit diagram of the toy and its batteries. (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load? https://seo-videos.collegephysicsanswers.com/ch21/pe24/ed1ch21pe24.mp4 364 114 5 2020-10-13 yes 2020-10-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-third-equation-example-215-substituting-values-found-currents-i1-and-i3 Verify the third equation in [Example… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe34/ed1ch21pe34b-thumbnail.jpg Verify the third equation in [Example 21.5](https://openstax.org/books/college-physics/pages/21-3-kirchhoffs-rules#fs-id3008416) by substituting the values found for the currents I\_1 and I\_3 . https://seo-videos.collegephysicsanswers.com/ch21/pe34/ed1ch21pe34b.mp4 53 41 3.7 2024-01-16 yes 2024-01-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/apply-loop-rule-loop-aedcba-figure-2125 Apply the loop rule to loop aedcba in Figure 21.25. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe32/thumbs-ed1ch21pe32-00002.png Apply the loop rule to loop aedcba in Figure 21.25. https://seo-videos.collegephysicsanswers.com/ch21/pe32/ed1ch21pe32.mp4 96 169 5 2020-10-14 yes 2020-10-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/120-v-emf-automobile-battery-has-terminal-voltage-160-v-when-being-charged A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe28/thumbs-ed1ch21pe28-00002.png A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipated inside the battery? (c) At what rate (in C ° /min ) will its temperature increase if its mass is 20.0 kg and it has a specific heat of 0.300 kcal/kg \cdot C ° , assuming no heat escapes? https://seo-videos.collegephysicsanswers.com/ch21/pe28/ed1ch21pe28.mp4 260 46 5 2020-10-14 yes 2020-10-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/person-body-resistance-between-his-hands-100textrm-komega-accidentally-grasps A person with body resistance between his hands of 10.0 k \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe26/thumbs-ed1ch21pe26-00002.png A person with body resistance between his hands of 10.0 k \Omega accidentally grasps the terminals of a 20.0-kV power supply. (Do NOT do this!) (a) Draw a circuit diagram to represent the situation. (b) If the internal resistance of the power supply is 2000 \Omega , what is the current through his body? (c) What is the power dissipated in his body? (d) If the power supply is to be made safe by increasing its internal resistance, what should the internal resistance be for the maximum current in this situation to be 1.00 mA or less? (e) Will this modification compromise the effectiveness of the power supply for driving low-resistance devices? Explain your reasoning. https://seo-videos.collegephysicsanswers.com/ch21/pe26/ed1ch21pe26.mp4 287 162 5 2020-10-14 yes 2020-10-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-internal-resistance-154-v-dry-cell-supplies-100-w-power-150textrm-omega (a) What is the internal resistance of a 1.54-V dry cell that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe30/thumbs-ed1ch21pe30-00002.png (a) What is the internal resistance of a 1.54-V dry cell that supplies 1.00 W of power to a 15.0 \Omega bulb? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch21/pe30/ed1ch21pe30.mp4 265 44 5 2020-10-14 yes 2020-10-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/apply-loop-rule-loop-abcdefghija-figure-2152 Apply the loop rule to loop abcdefghija in Figure 21.52. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe36/thumbs-ed1ch21pe36-00002.png Apply the loop rule to loop abcdefghija in Figure 21.52. https://seo-videos.collegephysicsanswers.com/ch21/pe36/ed1ch21pe36.mp4 173 349 5 2020-10-14 yes 2020-10-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-torque-applied-disk-radius-70-cm-35-s-will-produce-angular-momentum-25-nms Which torque applied to a disk with radius 7.0 cm for 3.5 s will… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap13/thumbs-ed1ch10ap13-00002.png Which torque applied to a disk with radius 7.0 cm for 3.5 s will produce an angular momentum of 25 N•m•s? (a) 7.1 N•m(b) 357.1 N•m(c) 3.6 N•m(d) 612.5 N•m https://seo-videos.collegephysicsanswers.com/ch10/ap13/ed1ch10ap13.mp4 88 24 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-material-resistor-made-if-its-resistance-400-greater-100circtextrmc Of what material is a resistor made if its resistance is 40.0%… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe31/thumbs-ed1ch20pe31-00002.png Of what material is a resistor made if its resistance is 40.0% greater at 100° C than at 20.0° C ? https://seo-videos.collegephysicsanswers.com/ch20/pe31/ed1ch20pe31.mp4 98 83 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-two-cylinders-start-down-identical-inclines-rest-except-one Consider two cylinders that start down identical inclines from rest… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe31/thumbs-ed1ch10pe31-00002.png Consider two cylinders that start down identical inclines from rest except that one is frictionless. Thus one cylinder rolls without slipping, while the other slides frictionlessly without rolling. They both travel a short distance at the bottom and then start up another incline. (a) Show that they both reach the same height on the other incline, and that this height is equal to their original height. (b) Find the ratio of the time the rolling cylinder takes to reach the height on the second incline to the time the sliding cylinder takes to reach the height on the second incline. (c) Explain why the time for the rolling motion is greater than that for the sliding motion. https://seo-videos.collegephysicsanswers.com/ch10/pe31/ed1ch10pe31.mp4 417 101 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-currents-flowing-circuit-figure-2147 Find the currents flowing in the circuit in Figure 21.47. | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe40/thumbs-ed1ch21pe40-00002.png Find the currents flowing in the circuit in Figure 21.47. https://seo-videos.collegephysicsanswers.com/ch21/pe40/ed1ch21pe40.mp4 930 221 4.3 2020-10-15 yes 2020-10-15T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-200-kg-motorcycle-has-two-wheels-one-described-example-1015-and-heading Suppose a 200-kg motorcycle has two wheels like, the one described in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe33/thumbs-ed1ch10pe33-00002.png Suppose a 200-kg motorcycle has two wheels like, the one described in Example 10.15 and is heading toward a hill at a speed of 30.0 m/s. (a) How high can it coast up the hill, if you neglect friction? (b) How much energy is lost to friction if the motorcycle only gains an altitude of 35.0 m before coming to rest? https://seo-videos.collegephysicsanswers.com/ch10/pe33/ed1ch10pe33.mp4 215 225 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-sensitivity-galvanometer-what-current-gives-full-scale-deflection-inside-1 What is the sensitivity of the galvanometer (that is, what current… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe42/thumbs-ed1ch21pe42-00002.png What is the sensitivity of the galvanometer (that is, what current gives a full-scale deflection) inside a voltmeter that has a 1.00-M Ω resistance on its 30.0-V scale? https://seo-videos.collegephysicsanswers.com/ch21/pe42/ed1ch21pe42.mp4 102 80 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-resistance-must-be-placed-series-250textrm-omega-galvanometer-having Find the resistance that must be placed in series with a 25.0 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe44/thumbs-ed1ch21pe44-00002.png Find the resistance that must be placed in series with a 25.0 \Omega galvanometer having a 50.0 \mu A sensitivity (the same as the one discussed in the text) to allow it to be used as a voltmeter with a 0.100-V full-scale reading. https://seo-videos.collegephysicsanswers.com/ch21/pe44/ed1ch21pe44.mp4 134 63 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-resistance-must-be-placed-series-100textrm-omega-galvanometer-having Find the resistance that must be placed in series with a 10.0 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe48/thumbs-ed1ch21pe48-00002.png Find the resistance that must be placed in series with a 10.0 \Omega galvanometer having a 100 \mu A sensitivity to allow it to be used as a voltmeter with: (a) a 300-V full-scale reading, and (b) a 0.300-V full-scale reading. https://seo-videos.collegephysicsanswers.com/ch21/pe48/ed1ch21pe48.mp4 112 53 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/certain-ammeter-has-resistance-500times-10-5textrm-omega-its-300-scale-and A certain ammeter has a resistance of 5.00 x 10^{-5} \Omega on its… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe52/thumbs-ed1ch21pe52-00002.png A certain ammeter has a resistance of 5.00 x 10^{-5} \Omega on its 3.00-A scale and contains a 10.0 \Omega galvanometer. What is the sensitivity of the galvanometer? https://seo-videos.collegephysicsanswers.com/ch21/pe52/ed1ch21pe52.mp4 116 28 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-resistance-must-be-placed-parallel-250textrm-omega-galvanometer-having Find the resistance that must be placed in parallel with a 25.0… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe46/thumbs-ed1ch21pe46-00002.png Find the resistance that must be placed in parallel with a 25.0 \Omega galvanometer having a 50.0 \mu A sensitivity (the same as the one discussed in the text) to allow it to be used as an ammeter with a 10.0-A full-scale reading. Include a circuit diagram with your solution. https://seo-videos.collegephysicsanswers.com/ch21/pe46/ed1ch21pe46.mp4 176 76 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-textrmemftextrmx-dry-cell-which-potentiometer-balanced-when-rtextrmx Calculate the emf _ x of a dry cell for which a potentiometer is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe58/thumbs-ed1ch21pe58-00002.png Calculate the emf _ x of a dry cell for which a potentiometer is balanced when R_ x = 1.200 \Omega , while an alkaline standard cell with an emf of 1.600 V requires R_ s = 1.247 \Omega to balance the potentiometer. https://seo-videos.collegephysicsanswers.com/ch21/pe58/ed1ch21pe58.mp4 158 18 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angular-momentum-moon-its-orbit-around-earth-how-does-angular-momentum (a) What is the angular momentum of the Moon in its orbit around… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe37/thumbs-ed1ch10pe37-00002.png (a) What is the angular momentum of the Moon in its orbit around Earth? (b) How does this angular momentum compare with the angular momentum of the Moon on its axis? Remember that the Moon keeps one side toward Earth at all times. (c) Discuss whether the values found in parts (a) and (b) seem consistent with the fact that tidal effects with Earth have caused the Moon to rotate with one side always facing Earth. https://seo-videos.collegephysicsanswers.com/ch10/pe37/ed1ch10pe37.mp4 195 185 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-value-must-you-adjust-r3-balance-wheatstone-bridge-if-unknown-resistance To what value must you adjust R_3 to balance a Wheatstone bridge, if… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe60/thumbs-ed1ch21pe60-00002.png To what value must you adjust R_3 to balance a Wheatstone bridge, if the unknown resistance R_ x is 100 \Omega, R_1 is 50.0 \Omega, and R_2 is 175 \Omega https://seo-videos.collegephysicsanswers.com/ch21/pe60/ed1ch21pe60.mp4 160 42 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ecg-monitor-must-have-rc-time-constant-less-100times-102textrm-mutextrms-be-able An ECG monitor must have an RC time constant less than 1.00 x 10^{2}… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe70/thumbs-ed1ch21pe70-00002.png An ECG monitor must have an RC time constant less than 1.00 x 10^{2} \mu s to be able to measure variations in voltage over small time intervals. (a) If the resistance of the circuit (due mostly to that of the patient’s chest) is 1.00 k \Omega , what is the maximum capacitance of the circuit? (b) Would it be difficult in practice to limit the capacitance to less than the value found in (a)? https://seo-videos.collegephysicsanswers.com/ch21/pe70/ed1ch21pe70.mp4 86 54 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/using-exact-exponential-treatment-find-how-much-time-required-discharge Using the exact exponential treatment, find how much time is required… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe72/thumbs-ed1ch21pe72-00002.png Using the exact exponential treatment, find how much time is required to discharge a 250 \mu F capacitor through a 500 \Omega resistor down to 1.00% of its original voltage. https://seo-videos.collegephysicsanswers.com/ch21/pe72/ed1ch21pe72.mp4 79 98 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/suppose-you-want-measure-resistances-range-100textrm-omega-100textrm-komega Suppose you want to measure resistances in the range from 10.0 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe62/thumbs-ed1ch21pe62-00002.png Suppose you want to measure resistances in the range from 10.0 \Omega to 10.0 k \Omega using a Wheatstone bridge that has \dfrac{R_2}{R_1} = 2.000. Over what range should R_3 be adjustable? https://seo-videos.collegephysicsanswers.com/ch21/pe62/ed1ch21pe62.mp4 195 34 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gymnast-doing-forward-flip-lands-mat-and-exerts-500-n-m-torque-slow-and-then A gymnast doing a forward flip lands on the mat and exerts a 500-N ·… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe19/thumbs-ed1ch10pe19-00002.png A gymnast doing a forward flip lands on the mat and exerts a 500-N · m torque to slow and then reverse her angular velocity. Her initial angular velocity is 10.0 rad/s, and her moment of inertia is 0.050 kg \cdot m ^2.(a) What time is required for her to exactly stop her spin? (b) What is unreasonable about the result? (c) Which premises are unreasonable or inconsistent? https://seo-videos.collegephysicsanswers.com/ch10/pe19/ed1ch10pe19.mp4 134 140 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/automobile-engine-can-produce-200-n-m-torque-calculate-angular-acceleration An automobile engine can produce 200 N · m of torque. Calculate the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/pe17/thumbs-ed1ch10pe17-00002.png An automobile engine can produce 200 N · m of torque. Calculate the angular acceleration produced if 95.0% of this torque is applied to the drive shaft, axle, and rear wheels of a car, given the following information. The car is suspended so that the wheels can turn freely. Each wheel acts like a 15.0 kg disk that has a 0.180 m radius. The walls of each tire act like a 2.00-kg annular ring that has inside radius of 0.180 m and outside radius of 0.320 m. The tread of each tire acts like a 10.0-kg hoop of radius 0.330 m. The 14.0-kg axle acts like a rod that has a 2.00-cm radius. The 30.0-kg drive shaft acts like a rod that has a 3.20-cm radius. https://seo-videos.collegephysicsanswers.com/ch10/pe17/ed1ch10pe17.mp4 315 184 5 2018-04-14 yes 2018-04-14T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/00200textrm-omega-ammeter-placed-series-1000textrm-omega-resistor-circuit-draw A 0.0200 \Omega ammeter is placed in series with a 10.00 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe54/thumbs-ed1ch21pe54-00002.png A 0.0200 \Omega ammeter is placed in series with a 10.00 \Omega resistor in a circuit. (a) Draw a circuit diagram of the connection. (b) Calculate the resistance of the combination. (c) If the voltage is kept the same across the combination as it was through the 10.00 \Omega resistor alone, what is the percent decrease in current? (d) If the current is kept the same through the combination as it was through the 10.00 \Omega resistor alone, what is the percent increase in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss. https://seo-videos.collegephysicsanswers.com/ch21/pe54/ed1ch21pe54.mp4 402 43 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/200textrm-mutextrmf-and-750textrm-mutextrmf-capacitor-can-be-connected-series-or A 2.00 \mu F and a 7.50 \mu F capacitor can be connected in series… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe66/thumbs-ed1ch21pe66-00002.png A 2.00 \mu F and a 7.50 \mu F capacitor can be connected in series or parallel, as can a 25.0 k \Omega and a 100 k \Omega resistor. Calculate the four RC time constants possible from connecting the resulting capacitance and resistance in series. https://seo-videos.collegephysicsanswers.com/ch21/pe66/ed1ch21pe66.mp4 216 108 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-you-wish-take-picture-bullet-traveling-500-ms-then-very-brief-flash-light If you wish to take a picture of a bullet traveling at 500 m/s, then… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe74/thumbs-ed1ch21pe74-00002.png If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an RC discharge through a flash tube can limit blurring. Assuming 1.00 mm of motion during one RC constant is acceptable, and given that the flash is driven by a 600 \mu F capacitor, what is the resistance in the flash tube? https://seo-videos.collegephysicsanswers.com/ch21/pe74/ed1ch21pe74.mp4 94 72 5 2020-10-28 yes 2020-10-28T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-power-supplied-starter-motor-large-truck-draws-250-current-240-v-battery What power is supplied to the starter motor of a large truck that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe41/thumbs-ed1ch20pe41-00002.png What power is supplied to the starter motor of a large truck that draws 250 A of current from a 24.0-V battery hookup? https://seo-videos.collegephysicsanswers.com/ch20/pe41/ed1ch20pe41.mp4 16 82 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-radius-circular-path-does-electron-travel-if-it-moves-same-speed-and-same What radius circular path does an electron travel if it moves at the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe16/thumbs-ed1ch22pe16-00002.png What radius circular path does an electron travel if it moves at the same speed and in the same magnetic field as the proton in [Exercise 22.13](https://collegephysicsanswers.com/openstax-solutions/proton-moves-750-times-107-ma-perpendicular-magnetic-field-field-causes-proton)? https://seo-videos.collegephysicsanswers.com/ch22/pe16/ed1ch22pe16.mp4 189 122 5 2020-10-30 yes 2020-10-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cyclist-pedals-exert-torque-rear-wheel-bicycle-when-cyclist-changes-higher-gear A cyclist pedals to exert a torque on the rear wheel of the bicycle.… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap23/thumbs-ed1ch10ap23-00002.png A cyclist pedals to exert a torque on the rear wheel of the bicycle. When the cyclist changes to a higher gear, the torque increases. Which of the following would be the most effective strategy to help you determine the change in angular momentum of the bicycle wheel? (a) multiplying the ratio between the two torques by the mass of the bicycle and rider(b) adding the two torques together, and multiplying by the time for which both torques are applied(c) multiplying the difference in the two torques by the time for which the new torque is applied(d) multiplying both torques by the mass of the bicycle and rider https://seo-videos.collegephysicsanswers.com/ch10/ap23/ed1ch10ap23.mp4 105 4 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/gear-which-turns-clockwise-meshes-gear-b-which-turns-counterclockwiswhen-more Gear A, which turns clockwise, meshes with gear B, which turns… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap07/thumbs-ed1ch10ap07-00002.png Gear A, which turns clockwise, meshes with gear B, which turns counterclockwisWhen more force is applied through gear A, torque is createHow does the angular velocity of gear B change as a result? (a) It increases in magnitude.(b) It decreases in magnitude.(c) It changes direction.(d) It stays the same https://seo-videos.collegephysicsanswers.com/ch10/ap07/ed1ch10ap07.mp4 23 16 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-measure-would-not-be-useful-help-you-determine-change-angular-velocity Which measure would not be useful to help you determine the change in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap09/thumbs-ed1ch10ap09-00002.png Which measure would not be useful to help you determine the change in angular velocity when the torque on a fishing reel is increased? (a) the radius of the reel(b) the amount of line that unspools(c) the angular momentum of the fishing line(d) the time it takes the line to unspool https://seo-videos.collegephysicsanswers.com/ch10/ap09/ed1ch10ap09.mp4 132 10 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/which-rotational-system-would-be-best-use-model-measure-how-angular-momentum Which rotational system would be best to use as a model to measure… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap11/thumbs-ed1ch10ap11-00002.png Which rotational system would be best to use as a model to measure how angular momentum changes when forces on the system are changed? (a) a fishing reel(b) a planet and its moon(c) a figure skater spinning(d) a person's lower leg https://seo-videos.collegephysicsanswers.com/ch10/ap11/ed1ch10ap11.mp4 87 10 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/piece-wood-can-be-carved-spinning-it-motorized-lathe-and-holding-sharp-chisel A piece of wood can be carved by spinning it on a motorized lathe and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap01/thumbs-ed1ch10ap01-00002.png A piece of wood can be carved by spinning it on a motorized lathe and holding a sharp chisel to the edge of the wood as it spins. How does the angular velocity of a piece of wood with a radius of 0.2 m spinning on a lathe change when a chisel is held to the wood's edge with a force of 50 N? (a) It increases by 0.1 N•m multiplied by the moment of inertia of the wood.(b) It decreases by 0.1 N•m divided by the moment of inertia of the wood-and-lathe system.(c) It decreases by 0.1 N•m multiplied by the moment of inertia of the wood.(d) It decreases by 0.1 m/s2. https://seo-videos.collegephysicsanswers.com/ch10/ap01/ed1ch10ap01.mp4 123 14 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lever-placed-fulcrum-rock-placed-left-end-lever-and-downward-clockwise-force A lever is placed on a fulcrum. A rock is placed on the left end of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap03/thumbs-ed1ch10ap03-00002.png A lever is placed on a fulcrum. A rock is placed on the left end of the lever and a downward (clockwise) force is applied to the right end of the lever. What measurements would be most effective to help you determine the angular momentum of the system? (Assume the lever itself has negligible mass.) (a) the angular velocity and mass of the rock(b) the angular velocity and mass of the rock, and the radius of the lever(c) the velocity of the force, the radius of the lever, and the mass of the rock(d) the mass of the rock, the length of the lever on both sides of the fulcrum, and the force applied on the right side of the lever https://seo-videos.collegephysicsanswers.com/ch10/ap03/ed1ch10ap03.mp4 129 14 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-two-sizes-disk-both-mass-m-one-size-disk-has-radius-r-other-has-radius Consider two sizes of disk, both of mass M. One size of disk has… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap05/thumbs-ed1ch10ap05-00002.png Consider two sizes of disk, both of mass M. One size of disk has radius R; the other has radius 2R. System A consists of two of the larger disks rigidly connected to each other with a common axis of rotation. System B consists of one of the larger disks and a number of the smaller disks rigidly connected with a common axis of rotation. If the moment of inertia for system A equals the moment of inertia for system B, how many of the smaller disks are in system B? (a) 1(b) 2(c) 3(d) 4 https://seo-videos.collegephysicsanswers.com/ch10/ap05/ed1ch10ap05.mp4 132 10 2018-04-25 yes 2018-04-25T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/diagram-below-shows-top-view-child-mass-m-circular-platform-mass-2m-rotating The diagram below shows a top view of a child of mass M on a circular… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap15/thumbs-ed1ch10ap15-00002.png The diagram below shows a top view of a child of mass M on a circular platform of mass 2M that is rotating counterclockwise. Assume the platform rotates without friction. Which of the following describes an action by the child that will increase the angular speed of the platform- child system and why? (a) The child moves toward the center of the platform, increasing the total angular momentum of the system.(b) The child moves toward the center of the platform, decreasing the rotational inertia of the system.(c) The child moves away from the center of the platform, increasing the total angular momentum of the system.(d) The child moves away from the center of the platform, decreasing the rotational inertia of the system. https://seo-videos.collegephysicsanswers.com/ch10/ap15/ed1ch10ap15.mp4 297 8 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hamster-sits-010-m-center-lazy-susan-negligible-mass-wheel-has-angular-velocity A hamster sits 0.10 m from the center of a lazy Susan of negligible… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap17/thumbs-ed1ch10ap17-00002.png A hamster sits 0.10 m from the center of a lazy Susan of negligible mass. The wheel has an angular velocity of 1.0 rev/ s. How will the angular velocity of the lazy Susan change if the hamster walks to 0.30 m from the center of rotation? Assume zero friction and no external torque. (a) It will speed up to 2.0 rev/s.(b) It will speed up to 9.0 rev/s.(c) It will slow to 0.01 rev/s.(d) It will slow to 0.02 rev/s. https://seo-videos.collegephysicsanswers.com/ch10/ap17/ed1ch10ap17.mp4 140 18 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/consider-system-consisting-two-disks-radius-r-both-rotating-clockwise-now Consider system A, consisting of two disks of radius R, with both… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap19/thumbs-ed1ch10ap19-00002.png Consider system A, consisting of two disks of radius R, with both rotating clockwise. Now consider system B, consisting of one disk of radius R rotating counterclockwise and another disk of radius 2R rotating clockwise. All of the disks have the same mass, and all have the same magnitude of angular velocity. Which system has the greatest angular momentum? (a) A(b) B(c) They're equal(d) Not enough information https://seo-videos.collegephysicsanswers.com/ch10/ap19/ed1ch10ap19.mp4 127 10 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-speed-supersonic-aircraft-170-m-wingspan-if-it-experiences-160-v-hall (a) What is the speed of a supersonic aircraft with a 17.0-m… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe24/thumbs-ed1ch22pe24-00002.png (a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60-V Hall voltage between its wing tips when in level flight over the north magnetic pole, where the Earth’s field strength is 8.00 x 10^{-5} T ? (b) Explain why very little current flows as a result of this Hall voltage. https://seo-videos.collegephysicsanswers.com/ch22/pe24/ed1ch22pe24.mp4 128 66 5 2020-11-04 yes 2020-11-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/box-mass-20-kg-rests-one-end-seesaw-seesaw-60-m-long-and-we-can-assume-it-has A box with a mass of 2.0 kg rests on one end of a seesaw. The seesaw… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap21/thumbs-ed1ch10ap21-00002.png A box with a mass of 2.0 kg rests on one end of a seesaw. The seesaw is 6.0 m long, and we can assume it has negligible mass. Approximately what angular momentum will the box have if someone with a mass of 65 kg sits on the other end of the seesaw quickly, with a velocity of 1.2 m/s? (a) 702 kg \cdot m ^2 /s (b) 39 kg \cdot m ^2 /s (c) 18 kg \cdot m ^2 /s (d) 1.2 kg \cdot m ^2 /s https://seo-videos.collegephysicsanswers.com/ch10/ap21/ed1ch10ap21.mp4 305 28 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/why-it-important-consider-shape-object-when-determining-objects-angular-momentum Why is it important to consider the shape of an object when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap25/thumbs-ed1ch10ap25-00002.png Why is it important to consider the shape of an object when determining the object's angular momentum? (a) The shape determines the location of the center of mass. The location of the center of mass in turn determines the angular velocity of the object.(b) The shape helps you determine the location of the object's outer edge, where rotational velocity will be greatest.(c) The shape helps you determine the location of the center of rotation.(d) The shape determines the location of the center of mass. The location of the center of mass contributes to the object's rotational inertia, which contributes to its angular momentum. https://seo-videos.collegephysicsanswers.com/ch10/ap25/ed1ch10ap25.mp4 255 6 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/describe-rotational-system-you-could-use-demonstrate-effect-systems-angular Describe a rotational system you could use to demonstrate the effect… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap27/thumbs-ed1ch10ap27-00002.png Describe a rotational system you could use to demonstrate the effect on the system's angular momentum of applying different amounts of external torque. https://seo-videos.collegephysicsanswers.com/ch10/ap27/ed1ch10ap27.mp4 147 6 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/globe-model-earth-hollow-sphere-radius-16-cm-wrapping-cord-around-equator-globe A globe (model of the Earth) is a hollow sphere with a radius of 16… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch10/ap29/thumbs-ed1ch10ap29-00002.png A globe (model of the Earth) is a hollow sphere with a radius of 16 cm. By wrapping a cord around the equator of a globe and pulling on it, a person exerts a torque on the globe of 120 N • m for 1.2 s. What angular momentum does the globe have after 1.2 s? https://seo-videos.collegephysicsanswers.com/ch10/ap29/ed1ch10ap29.mp4 68 20 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-water-main-250-m-diameter-and-average-water-velocity-600-ms-find-hall A large water main is 2.50 m in diameter and the average water… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe22/thumbs-ed1ch22pe22-00002.png A large water main is 2.50 m in diameter and the average water velocity is 6.00 m/s. Find the Hall voltage produced if the pipe runs perpendicular to the Earth’s 5.00 x 10^{-5} T field. https://seo-videos.collegephysicsanswers.com/ch22/pe22/ed1ch22pe22.mp4 208 159 5 2020-11-04 yes 2020-11-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-hall-voltage-induced-patients-heart-while-being-scanned-mri-unit Calculate the Hall voltage induced on a patient’s heart while being… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe26/thumbs-ed1ch22pe26-00002.png Calculate the Hall voltage induced on a patient’s heart while being scanned by an MRI unit. Approximate the conducting path on the heart wall by a wire 7.50 cm long that moves at 10.0 cm/s perpendicular to a 1.50-T magnetic field. https://seo-videos.collegephysicsanswers.com/ch22/pe26/ed1ch22pe26.mp4 85 42 5 2020-11-04 yes 2020-11-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-cyclotron-directs-beam-textrmhe-nuclei-target-beam-current-0250-ma-how A large cyclotron directs a beam of He ^{++} nuclei onto a target… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe13/thumbs-ed1ch20pe13-00002.png A large cyclotron directs a beam of He ^{++} nuclei onto a target with a beam current of 0.250 mA. (a) How many He ^{++} nuclei per second is this? (b) How long does it take for 1.00 C to strike the target? (c) How long before 1.00 mol of He ^{++} nuclei strike the target? https://seo-videos.collegephysicsanswers.com/ch20/pe13/ed1ch20pe13.mp4 156 101 5 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-exerted-water-mhd-drive-utilizing-250-cm-diameter-tube-if-100-current What force is exerted on the water in an MHD drive utilizing a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe36/thumbs-ed1ch22pe36-00002.png What force is exerted on the water in an MHD drive utilizing a 25.0-cm-diameter tube, if 100-A current is passed across the tube that is perpendicular to a 2.00-T magnetic field? (The relatively small size of this force indicates the need for very large currents and magnetic fields to make practical MHD drives.) https://seo-videos.collegephysicsanswers.com/ch22/pe36/ed1ch22pe36.mp4 117 71 5 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/spear-storage-ring-about-720-m-diameter-stanford-linear-accelerator-closed-2009 SPEAR, a storage ring about 72.0 m in diameter at the Stanford Linear… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe17/thumbs-ed1ch20pe17-00002.png SPEAR, a storage ring about 72.0 m in diameter at the Stanford Linear Accelerator (closed in 2009), has a 20.0-A circulating beam of electrons that are moving at nearly the speed of light. (See Figure 20.39.) How many electrons are in the beam? https://seo-videos.collegephysicsanswers.com/ch20/pe17/ed1ch20pe17.mp4 115 97 4.7 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/large-lightning-bolt-had-20000-current-and-moved-300-c-charge-what-was-its A large lightning bolt had a 20,000-A current and moved 30.0 C of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe05/thumbs-ed1ch20pe05-00002.png A large lightning bolt had a 20,000-A current and moved 30.0 C of charge. What was its duration? https://seo-videos.collegephysicsanswers.com/ch20/pe05/ed1ch20pe05.mp4 38 90 5 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/patient-pacemaker-mistakenly-being-scanned-mri-image-100-cm-long-section A patient with a pacemaker is mistakenly being scanned for an MRI… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe30/thumbs-ed1ch22pe30-00002.png A patient with a pacemaker is mistakenly being scanned for an MRI image. A 10.0-cm-long section of pacemaker wire moves at a speed of 10.0 cm/s perpendicular to the MRI unit’s magnetic field and a 20.0-mV Hall voltage is induced. What is the magnetic field strength? https://seo-videos.collegephysicsanswers.com/ch22/pe30/ed1ch22pe30.mp4 117 42 5 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-force-meter-lightning-bolt-equator-carries-20000-perpendicular-earths (a) What is the force per meter on a lightning bolt at the equator… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe34/thumbs-ed1ch22pe34-00002.png (a) What is the force per meter on a lightning bolt at the equator that carries 20,000 A perpendicular to the Earth’s 3.00 x 10^{-5} T field? (b) What is the direction of the force if the current is straight up and the Earth’s field direction is due north, parallel to the ground? https://seo-videos.collegephysicsanswers.com/ch22/pe34/ed1ch22pe34.mp4 89 161 5 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/force-rectangular-loop-wire-magnetic-field-figure-2256-can-be-used-measure-field The force on the rectangular loop of wire in the magnetic field in… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe40/thumbs-ed1ch22pe40-00002.png The force on the rectangular loop of wire in the magnetic field in Figure 22.56 can be used to measure field strength. The field is uniform, and the plane of the loop is perpendicular to the field. (a) What is the direction of the magnetic force on the loop? Justify the claim that the forces on the sides of the loop are equal and opposite, independent of how much of the loop is in the field and do not affect the net force on the loop. (b) If a current of 5.00 A is used, what is the force per tesla on the 20.0-cm-wide loop? https://seo-videos.collegephysicsanswers.com/ch22/pe40/ed1ch22pe40.mp4 163 213 5 2020-11-06 yes 2020-11-06T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-angle-theta-torque-current-loop-900-maximum-b-500-maximum-c-100-maximum (a) At what angle \theta is the torque on a current loop 90.0% of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe46/thumbs-ed1ch22pe46-00002.png (a) At what angle \theta is the torque on a current loop 90.0% of maximum? (b) 50.0% of maximum? (c) 10.0% of maximum? https://seo-videos.collegephysicsanswers.com/ch22/pe46/ed1ch22pe46.mp4 74 64 5 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-magnetic-field-strength-needed-200-turn-square-loop-200-cm-side-create Calculate the magnetic field strength needed on a 200-turn square… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe44/thumbs-ed1ch22pe44-00002.png Calculate the magnetic field strength needed on a 200-turn square loop 20.0 cm on a side to create a maximum torque of 300 N \cdot m if the loop is carrying 25.0 A. https://seo-videos.collegephysicsanswers.com/ch22/pe44/ed1ch22pe44.mp4 64 119 5 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/batteries-submerged-non-nuclear-submarine-supply-1000-full-speed-ahead-how-long The batteries of a submerged non-nuclear submarine supply 1000 A at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe11/thumbs-ed1ch20pe11-00002.png The batteries of a submerged non-nuclear submarine supply 1000 A at full speed ahead. How long does it take to move Avogadro's number ( 6.02 x 10^{23} ) of electrons at this rate? https://seo-videos.collegephysicsanswers.com/ch20/pe11/ed1ch20pe11.mp4 80 53 5 2018-04-26 yes 2018-04-26T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-volts-are-supplied-operate-indicator-light-dvd-player-has-resistance How many volts are supplied to operate an indicator light on a DVD… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe21/thumbs-ed1ch20pe21-00002.png How many volts are supplied to operate an indicator light on a DVD player that has a resistance of 140 \Omega , given that 25.0 mA passes through it? https://seo-videos.collegephysicsanswers.com/ch20/pe21/ed1ch20pe21.mp4 31 92 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-material-wire-made-if-it-250-m-long-0100-mm-diameter-and-has-resistance-777 (a) Of what material is a wire made, if it is 25.0 m long with a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe33/thumbs-ed1ch20pe33-00002.png (a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a resistance of 77.7 \Omega at 20.0° C ? (b) What is its resistance at 150° C ? https://seo-videos.collegephysicsanswers.com/ch20/pe33/ed1ch20pe33.mp4 140 140 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/some-makes-older-cars-have-600-v-electrical-systems-what-hot-resistance-300-w Some makes of older cars have 6.00-V electrical systems. (a) What is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe53/thumbs-ed1ch20pe53-00002.png Some makes of older cars have 6.00-V electrical systems. (a) What is the hot resistance of a 30.0-W headlight in such a car? (b) What current flows through it? https://seo-videos.collegephysicsanswers.com/ch20/pe53/ed1ch20pe53.mp4 112 60 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-resistance-220-v-ac-short-circuit-generates-peak-power-968-kw-b-what-would (a) What is the resistance of a 220-V AC short circuit that generates… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe91/thumbs-ed1ch20pe91-00002.png (a) What is the resistance of a 220-V AC short circuit that generates a peak power of 96.8 kW? (b) What would the average power be if the voltage was 120 V AC? https://seo-videos.collegephysicsanswers.com/ch20/pe91/ed1ch20pe91.mp4 110 24 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/ac-appliance-cord-has-its-hot-and-neutral-wires-separated-300-mm-and-carries-500 An AC appliance cord has its hot and neutral wires separated by 3.00… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe54/thumbs-ed1ch22pe54-00002.png An AC appliance cord has its hot and neutral wires separated by 3.00 mm and carries a 5.00-A current. (a) What is the average force per meter between the wires in the cord? (b) What is the maximum force per meter between the wires? (c) Are the forces attractive or repulsive? (d) Do appliance cords need any special design features to compensate for these forces? https://seo-videos.collegephysicsanswers.com/ch22/pe54/ed1ch22pe54.mp4 293 67 5 2020-11-07 yes 2020-11-07T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/digital-medical-thermometers-determine-temperature-measuring-resistance (a) Digital medical thermometers determine temperature by measuring… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe37/thumbs-ed1ch20pe37-00002.png (a) Digital medical thermometers determine temperature by measuring the resistance of a semiconductor device called a thermistor (which has \alpha = -0.0600 / C° ) when it is at the same temperature as the patient. What is a patient's temperature if the thermistor's resistance at that temperature is 82.0% of its value at 37.0° C (normal body temperature)? (b) The negative value for \alpha may not be maintained for very low temperatures. Discuss why and whether this is the case here. (Hint: Resistance can't become negative.) https://seo-videos.collegephysicsanswers.com/ch20/pe37/ed1ch20pe37.mp4 241 104 4.3 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/power-transmission-line-hung-metal-towers-glass-insulators-having-resistance-100 A power transmission line is hung from metal towers with glass… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe23/thumbs-ed1ch20pe23-00002.png A power transmission line is hung from metal towers with glass insulators having a resistance of 1.00 x 10^9 \Omega What current flows through the insulator if the voltage is 200 kV? (Some high-voltage lines are DC.) https://seo-videos.collegephysicsanswers.com/ch20/pe23/ed1ch20pe23.mp4 55 132 3.7 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-temperature-must-you-raise-resistor-made-constantan-double-its-resistance (a) To what temperature must you raise a resistor made of constantan… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe39/thumbs-ed1ch20pe39-00002.png (a) To what temperature must you raise a resistor made of constantan to double its resistance, assuming a constant temperature coefficient of resistivity? (b) To cut it in half? (c) What is unreasonable about these results? (d) Which assumptions are unreasonable, or which premises are inconsistent? https://seo-videos.collegephysicsanswers.com/ch20/pe39/ed1ch20pe39.mp4 165 16 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-strong-magnetic-field-inside-solenoid-10000-turns-meter-carries-200 How strong is the magnetic field inside a solenoid with 10,000 turns… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe64/thumbs-ed1ch22pe64-00002.png How strong is the magnetic field inside a solenoid with 10,000 turns per meter that carries 20.0 A? https://seo-videos.collegephysicsanswers.com/ch22/pe64/ed1ch22pe64.mp4 26 46 2020-11-10 yes 2020-11-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/inside-motor-300-passes-through-250-turn-circular-loop-100-cm-radius-what Inside a motor, 30.0 A passes through a 250-turn circular loop that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe62/thumbs-ed1ch22pe62-00002.png Inside a motor, 30.0 A passes through a 250-turn circular loop that is 10.0 cm in radius. What is the magnetic field strength created at its center? https://seo-videos.collegephysicsanswers.com/ch22/pe62/ed1ch22pe62.mp4 46 85 2020-11-10 yes 2020-11-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/lengths-and-diameters-four-wires-are-given-shown-if-four-wires-are-made-same The lengths and diameters of four wires are given as shown. If the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap09/thumbs-ed1ch20ap09-00002.png The lengths and diameters of four wires are given as shown. If the four wires are made from the same material, which of the following is true? Select two answers. https://seo-videos.collegephysicsanswers.com/ch20/ap09/ed1ch20ap09.mp4 143 4 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-far-starter-cable-car-carrying-150-must-you-be-experience-field-less-earths How far from the starter cable of a car, carrying 150 A, must you be… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe66/thumbs-ed1ch22pe66-00002.png How far from the starter cable of a car, carrying 150 A, must you be to experience a field less than the Earth’s (5.00 x 10^{-5} T )? Assume a long straight wire carries the current. (In practice, the body of your car shields the dashboard compass.) https://seo-videos.collegephysicsanswers.com/ch22/pe66/ed1ch22pe66.mp4 66 50 5 2020-11-10 yes 2020-11-10T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-unknown-emfx-potentiometer-balances-when-rx-100-omega-and-balances-when-rs (a) What is the unknown emf_x in a potentiometer that balances when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch21/pe61/thumbs-ed1ch21pe61-00002.png (a) What is the unknown emf_x in a potentiometer that balances when R_x is 10.0 \Omega, and balances when R_s is 15.0 \Omega for a standard 3.000-V emf? (b) The same emf_x is placed in the same potentiometer, which now balances when R_s is 15.0 \Omega for a standard emf of 3.100 V. At what resistance R_x will the potentiometer balance? https://seo-videos.collegephysicsanswers.com/ch21/pe61/ed1ch21pe61.mp4 143 25 5 2018-05-04 yes 2018-05-04T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-many-watts-does-flashlight-has-600-times-102-c-pass-through-it-0500-h-use-if How many watts does a flashlight that has 6.00 x 10^2 C pass through… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe43/thumbs-ed1ch20pe43-00002.png How many watts does a flashlight that has 6.00 x 10^2 C pass through it in 0.500 h use if its voltage is 3.00 V? https://seo-videos.collegephysicsanswers.com/ch20/pe43/ed1ch20pe43.mp4 33 105 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cauterizer-used-stop-bleeding-surgery-puts-out-200-ma-150-kv-what-its-power A cauterizer, used to stop bleeding in surgery, puts out 2.00 mA at… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe55/thumbs-ed1ch20pe55-00002.png A cauterizer, used to stop bleeding in surgery, puts out 2.00 mA at 15.0 kV. (a) What is its power output? (b) What is the resistance of the path? https://seo-videos.collegephysicsanswers.com/ch20/pe55/ed1ch20pe55.mp4 43 43 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/old-light-bulb-draws-only-500-w-rather-its-original-600-w-due-evaporative An old light bulb draws only 50.0 W, rather than its original 60.0 W,… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe57/thumbs-ed1ch20pe57-00002.png An old light bulb draws only 50.0 W, rather than its original 60.0 W, due to evaporative thinning of its filament. By what factor is its diameter reduced, assuming uniform thinning along its length? Neglect any effects caused by temperature differences. https://seo-videos.collegephysicsanswers.com/ch20/pe57/ed1ch20pe57.mp4 218 120 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/verify-units-volt-ampere-are-watts-implied-equation-p-iv Verify that the units of a volt-ampere are watts, as implied by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe45/thumbs-ed1ch20pe45-00002.png Verify that the units of a volt-ampere are watts, as implied by the equation P = IV. https://seo-videos.collegephysicsanswers.com/ch20/pe45/ed1ch20pe45.mp4 38 84 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/electrons-x-ray-tube-are-accelerated-through-100-times-102-kv-and-directed Electrons in an X-ray tube are accelerated through 1.00 x 10^2 kV … | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe49/thumbs-ed1ch20pe49-00002.png Electrons in an X-ray tube are accelerated through 1.00 x 10^2 kV and directed toward a target to produce X-rays. Calculate the power of the electron beam in this tube if it has a current of 15.0 mA. https://seo-videos.collegephysicsanswers.com/ch20/pe49/ed1ch20pe49.mp4 37 23 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-units-1-v2-textrmomega-1textrm-w-implied-equation-p-dfracv2r Show that the units 1 V ^2 / \Omega = 1 W , as implied by the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe47/thumbs-ed1ch20pe47-00002.png Show that the units 1 V ^2 / \Omega = 1 W , as implied by the equation P = \dfrac{V^2}{R}. https://seo-videos.collegephysicsanswers.com/ch20/pe47/ed1ch20pe47.mp4 72 34 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/cold-vaporizers-pass-current-through-water-evaporating-it-only-small-increase Cold vaporizers pass a current through water, evaporating it with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe59/thumbs-ed1ch20pe59-00002.png Cold vaporizers pass a current through water, evaporating it with only a small increase in temperature. One such home device is rated at 3.50 A and utilizes 120 V AC with 95.0% efficiency. (a) What is the vaporization rate in grams per minute? (b) How much water must you put into the vaporizer for 8.00 h of overnight operation? (See Figure 20.42.) https://seo-videos.collegephysicsanswers.com/ch20/pe59/ed1ch20pe59.mp4 288 24 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-voltage-will-accelerate-electrons-speed-600times-10-7textrm-ms-b-find (a) What voltage will accelerate electrons to a speed of 6.00 x… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe74/thumbs-ed1ch22pe74-00002.png (a) What voltage will accelerate electrons to a speed of 6.00 x 10^{-7} m/s ? (b) Find the radius of curvature of the path of a proton accelerated through this potential in a 0.500-T field and compare this with the radius of curvature of an electron accelerated through the same potential. https://seo-videos.collegephysicsanswers.com/ch22/pe74/ed1ch22pe74b.mp4 243 52 2024-01-16 yes 2024-01-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-magnitude-and-direction-magnetic-field-point-equidistant-wires-figure-2258b Find the magnitude and direction of the magnetic field at the point… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe70/thumbs-ed1ch22pe70-00002.png Find the magnitude and direction of the magnetic field at the point equidistant from the wires in Figure 22.58(b), using the rules of vector addition to sum the contributions from each wire. https://seo-videos.collegephysicsanswers.com/ch22/pe70/ed1ch22pe70.mp4 351 41 2020-11-12 yes 2020-11-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/show-period-circular-orbit-charged-particle-moving-perpendicularly-uniform (a) Show that the period of the circular orbit of a charged particle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe80/thumbs-ed1ch22pe80-00002.png (a) Show that the period of the circular orbit of a charged particle moving perpendicularly to a uniform magnetic field is T = \dfrac{2 \pi m}{qB}. (b) What is the frequency f? (c) What is the angular velocity \omega ? Note that these results are independent of the velocity and radius of the orbit and, hence, of the energy of the particle. (Figure 22.64.) https://seo-videos.collegephysicsanswers.com/ch22/pe80/ed1ch22pe80.mp4 230 52 2020-11-12 yes 2020-11-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/1200-w-toaster-how-much-electrical-energy-needed-make-slice-toast-cooking-time-1 With a 1200-W toaster, how much electrical energy is needed to make a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe51/thumbs-ed1ch20pe51-00002.png With a 1200-W toaster, how much electrical energy is needed to make a slice of toast (cooking time = 1 minute)? At 9.0 cents/kW \cdot h , how much does this cost? https://seo-videos.collegephysicsanswers.com/ch20/pe51/ed1ch20pe51.mp4 90 155 5 2018-04-27 yes 2018-04-27T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-current-must-be-produced-120-v-battery-operated-bottle-warmer-order-heat What current must be produced by a 12.0-V battery-operated bottle… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe61/thumbs-ed1ch20pe61-00002.png What current must be produced by a 12.0-V battery-operated bottle warmer in order to heat 75.0 g of glass, 250 g of baby formula, and 3.00 x 10^2 g of aluminum from 20.0° C to 90.0° C in 5.00 min? https://seo-videos.collegephysicsanswers.com/ch20/pe61/ed1ch20pe61.mp4 197 43 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-maximum-torque-50-turn-150-cm-radius-circular-current-loop-carrying (a) Calculate the maximum torque on a 50-turn, 1.50 cm radius… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe78/thumbs-ed1ch22pe78-00002.png (a) Calculate the maximum torque on a 50-turn, 1.50 cm radius circular current loop carrying 50 \mu A in a 0.500-T field. (b) If this coil is to be used in a galvanometer that reads 50 \mu A full scale, what force constant spring must be used, if it is attached 1.00 cm from the axis of rotation and is stretched by the 60° arc moved? https://seo-videos.collegephysicsanswers.com/ch22/pe78/ed1ch22pe78b.mp4 324 18 2024-01-16 yes 2024-01-16T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/problem-you-will-verify-statements-made-end-power-losses-example-2010-what In this problem, you will verify statements made at the end of the… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe77/thumbs-ed1ch20pe77-00002.png In this problem, you will verify statements made at the end of the power losses for Example 20.10. (a) What current is needed to transmit 100 MW of power at a voltage of 25.0 kV? (b) Find the power loss in a 1.00 \Omega transmission line. (c) What percent loss does this represent? https://seo-videos.collegephysicsanswers.com/ch20/pe77/ed1ch20pe77.mp4 81 53 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/construct-nonmechanical-water-meter-0500-t-magnetic-field-placed-across-supply To construct a nonmechanical water meter, a 0.500-T magnetic field is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe76/thumbs-ed1ch22pe76-00002.png To construct a nonmechanical water meter, a 0.500-T magnetic field is placed across the supply water pipe to a home and the Hall voltage is recorded. (a) Find the flow rate in liters per second through a 3.00-cm-diameter pipe if the Hall voltage is 60.0 mV. (b) What would the Hall voltage be for the same flow rate through a 10.0-cm-diameter pipe with the same field applied? https://seo-videos.collegephysicsanswers.com/ch22/pe76/ed1ch22pe76.mp4 346 11 2020-11-12 yes 2020-11-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/charged-particle-having-mass-664times-10-27textrm-kg-helium-atom-moving-870times A charged particle having mass 6.64 x 10^{-27} kg (that of a helium… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe86/thumbs-ed1ch22pe86-00002.png A charged particle having mass 6.64 x 10^{-27} kg (that of a helium atom) moving at 8.70 x 10^{5} m/s perpendicular to a 1.50-T magnetic field travels in a circular path of radius 16.0 mm. (a) What is the charge of the particle? (b) What is unreasonable about this result? (c) Which assumptions are responsible? https://seo-videos.collegephysicsanswers.com/ch22/pe86/ed1ch22pe86.mp4 179 10 2020-11-13 yes 2020-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-2262-shows-long-straight-wire-just-touching-loop-carrying-current-i1-both Figure 22.62 shows a long straight wire just touching a loop carrying… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe68/thumbs-ed1ch22pe68-00002.png Figure 22.62 shows a long straight wire just touching a loop carrying a current I_1. Both lie in the same plane. (a) What direction must the current I_2 in the straight wire have to create a field at the center of the loop in the direction opposite to that created by the loop? (b) What is the ratio of dfrac{I_1}{I_2} that gives zero field strength at the center of the loop? (c) What is the direction of the field directly above the loop under this circumstance? https://seo-videos.collegephysicsanswers.com/ch22/pe68/ed1ch22pe68.mp4 518 70 2020-11-12 yes 2020-11-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/calculate-size-magnetic-field-20-m-below-high-voltage-power-line-line-carries Calculate the size of the magnetic field 20 m below a high voltage… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe72/thumbs-ed1ch22pe72-00002.png Calculate the size of the magnetic field 20 m below a high voltage power line. The line carries 450 MW at a voltage of 300,000 V. https://seo-videos.collegephysicsanswers.com/ch22/pe72/ed1ch22pe72.mp4 54 55 4 2020-11-12 yes 2020-11-12T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/what-peak-power-consumption-120-v-ac-microwave-oven-draws-100 What is the peak power consumption of a 120-V AC microwave oven that… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe79/thumbs-ed1ch20pe79-00002.png What is the peak power consumption of a 120-V AC microwave oven that draws 10.0 A? https://seo-videos.collegephysicsanswers.com/ch20/pe79/ed1ch20pe79.mp4 88 57 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/0140-kg-baseball-pitched-400-ms-horizontally-and-perpendicular-earths-horizontal (a) A 0.140-kg baseball, pitched at 40.0 m/s horizontally and… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch22/pe82/thumbs-ed1ch22pe82-00002.png (a) A 0.140-kg baseball, pitched at 40.0 m/s horizontally and perpendicular to the Earth’s horizontal 5.00 x 10^{-5} T field, has a 100-nC charge on it. What distance is it deflected from its path by the magnetic force, after traveling 30.0 m horizontally? (b) Would you suggest this as a secret technique for a pitcher to throw curve balls? https://seo-videos.collegephysicsanswers.com/ch22/pe82/ed1ch22pe82.mp4 494 24 4 2020-11-13 yes 2020-11-13T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/two-different-electrical-devices-have-same-power-consumption-one-meant-be Two different electrical devices have the same power consumption, but… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe81/thumbs-ed1ch20pe81-00002.png Two different electrical devices have the same power consumption, but one is meant to be operated on 120-V AC and the other on 240-V AC. (a) What is the ratio of their resistances? (b) What is the ratio of their currents? (c) Assuming its resistance is unaffected, by what factor will the power increase if a 120-V AC device is connected to 240-V AC? https://seo-videos.collegephysicsanswers.com/ch20/pe81/ed1ch20pe81.mp4 270 88 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/how-much-power-dissipated-short-circuit-240-v-ac-through-resistance-0250-omega-b (a) How much power is dissipated in a short circuit of 240-V AC… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe85/thumbs-ed1ch20pe85-00002.png (a) How much power is dissipated in a short circuit of 240-V AC through a resistance of 0.250 \Omega ? (b) What current flows? https://seo-videos.collegephysicsanswers.com/ch20/pe85/ed1ch20pe85.mp4 32 38 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/foolishly-trying-fish-burning-piece-bread-toaster-metal-butter-knife-man-comes Foolishly trying to fish a burning piece of bread from a toaster with… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe89/thumbs-ed1ch20pe89-00002.png Foolishly trying to fish a burning piece of bread from a toaster with a metal butter knife, a man comes into contact with 120-V AC. He does not even feel it since, luckily, he is wearing rubber-soled shoes. What is the minimum resistance of the path the current follows through the person? https://seo-videos.collegephysicsanswers.com/ch20/pe89/ed1ch20pe89.mp4 54 48 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/find-time-after-t-0-when-instantaneous-voltage-60-hz-ac-first-reaches-following Find the time after t = 0 when the instantaneous voltage of 60-Hz AC… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe83/thumbs-ed1ch20pe83-00002.png Find the time after t = 0 when the instantaneous voltage of 60-Hz AC first reaches the following values: (a) \dfrac{V_o}{2} (b) V_o (c) 0. https://seo-videos.collegephysicsanswers.com/ch20/pe83/ed1ch20pe83.mp4 362 39 4 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/use-ecg-figure-2034-determine-heart-rate-beats-minute-assuming-constant-time Use the ECG in Figure 20.34 to determine the heart rate in beats per… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe95/thumbs-ed1ch20pe95-00002.png Use the ECG in Figure 20.34 to determine the heart rate in beats per minute assuming a constant time between beats. https://seo-videos.collegephysicsanswers.com/ch20/pe95/ed1ch20pe95.mp4 70 36 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/short-circuit-120-v-appliance-cord-has-0500-omega-resistance-calculate A short circuit in a 120-V appliance cord has a 0.500 \Omega… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe93/thumbs-ed1ch20pe93-00002.png A short circuit in a 120-V appliance cord has a 0.500 \Omega resistance. Calculate the temperature rise of the 2.00 g of surrounding materials, assuming their specific heat capacity is 0.200 cal/g \cdot° C and that it takes 0.0500 s for a circuit breaker to interrupt the current. Is this likely to be damaging? https://seo-videos.collegephysicsanswers.com/ch20/pe93/ed1ch20pe93.mp4 149 12 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/hydroelectric-generators-see-figure-2043-hoover-dam-produce-maximum-current-800 Hydroelectric generators (see Figure 20.43) at Hoover Dam produce a… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe63/thumbs-ed1ch20pe63-00002.png Hydroelectric generators (see Figure 20.43) at Hoover Dam produce a maximum current of 8.00 x 10^3 A at 250 kV. (a) What is the power output? (b) The water that powers the generators enters and leaves the system at low speed (thus its kinetic energy does not change) but loses 160 m in altitude. How many cubic meters per second are needed, assuming 85.0% efficiency? https://seo-videos.collegephysicsanswers.com/ch20/pe63/ed1ch20pe63.mp4 228 81 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/light-rail-commuter-train-draws-630-650-v-dc-electricity-when-accelerating-what A light-rail commuter train draws 630 A of 650-V DC electricity when… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe65/thumbs-ed1ch20pe65-00002.png A light-rail commuter train draws 630 A of 650-V DC electricity when accelerating. (a) What is its power consumption rate in kilowatts? (b) How long does it take to reach 20.0 m/s starting from rest if its loaded mass is 5.30 x 10^4 kg , assuming 95.0% efficiency and constant power? (c) Find its average acceleration. (d) Discuss how the acceleration you found for the light-rail train compares to what might be typical for an automobile. https://seo-videos.collegephysicsanswers.com/ch20/pe65/ed1ch20pe65.mp4 236 77 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/student-trying-determine-acceleration-feather-she-drops-it-ground-if-student A student is trying to determine the acceleration of a feather as she… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap02/thumbs-ed1ch02ap02-00002.png A student is trying to determine the acceleration of a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?(a) Her hand should be a coordinate of zero and the upward direction should be considered positive.(b) Her hand should be a coordinate of zero and the downward direction should be considered positive.(c) The floor should be a coordinate of zero and the upward direction should be considered positive.(d) The floor should be a coordinate of zero and the downward direction should be considered positive. https://seo-videos.collegephysicsanswers.com/ch02/ap02/ed1ch02ap02.mp4 167 18 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/immersion-heater-utilizing-120-v-can-raise-temperature-100-times-102-g-aluminum (a) An immersion heater utilizing 120 V can raise the temperature of… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe67/thumbs-ed1ch20pe67-00002.png (a) An immersion heater utilizing 120 V can raise the temperature of a 1.00 x 10^2 g aluminum cup containing 350 g of water from 20.0° C to 95.0° C in 2.00 min. Find its resistance, assuming it is constant during the process. (b) A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance. https://seo-videos.collegephysicsanswers.com/ch20/pe67/ed1ch20pe67.mp4 174 27 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/figure-281-graph-showing-velocity-vs-time-cart-cart-constrained-move-along Figure 2.81 Graph showing Velocity vs. Time of a cart. A cart is… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch02/ap04/thumbs-ed1ch02ap04-00002.png Figure 2.81 Graph showing Velocity vs. Time of a cart. A cart is constrained to move along a straight line. A varying net force along the direction of motion is exerted on the cart. The cart's velocity v as a function of time t is shown in the graph. The five labeled points divide the graph into four sections. Which of the following correctly ranks the magnitude of the average acceleration of the cart during the four sections of the graph? (a) a\_{CD} > a\_{AB} > a\_{BC} > a\_{DE}(b) a\_{BC} > a\_{AB} > a\_{CD} > a\_{DE}(c) a\_{AB} > a\_{BC} > a\_{DE} > a\_{CD}(d) a\_{CD} > a\_{AB} > a\_{DE} > a\_{BC} https://seo-videos.collegephysicsanswers.com/ch02/ap04/ed1ch02ap04.mp4 150 24 5 2019-07-22 yes 2019-07-22T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/military-aircraft-use-400-hz-ac-power-because-it-possible-design-lighter-weight Military aircraft use 400-Hz AC power, because it is possible to… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/pe75/thumbs-ed1ch20pe75-00002.png Military aircraft use 400-Hz AC power, because it is possible to design lighter-weight equipment at this higher frequency. What is the time for one complete cycle of this power? https://seo-videos.collegephysicsanswers.com/ch20/pe75/ed1ch20pe75.mp4 19 29 5 2018-04-30 yes 2018-04-30T00:00:00.000Z monthly 0.7 https://collegephysicsanswers.com/openstax-solutions/if-0625-times-1020-electrons-flow-through-circuit-each-second-what-current If 0.625 x 10^{20} electrons flow through a circuit each second, what… | College Physics Answers https://audmmqtfxtmsuwuoljcx.supabase.co/storage/v1/object/public/solution-thumbnails/ch20/ap03/thumbs-ed1ch20ap03-00002.png If 0.625 x 10^{20} electrons flow through a circuit each second, what is the current in the circuit? https://seo-videos.collegephysicsanswers.com/ch20/ap03/ed1ch20ap03.mp4 28 2 2018-05-01 yes 2018-05-01T00:00:00.000Z monthly 0.7