Question

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?

Final Answer

$40.0 \textrm{ Hz}$

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Video Transcript

This is College Physics Answers with Shaun Dychko. Wave speed is frequency multiplied by wave length. So to solve for frequency we divide both sides by <i>lambda</i>. So <i>f</i> equals <i>v</i> over <i>lambda</i> and that is two meters per second divided by five centimeters written as five times ten to the minus two meters. This gives a frequency of 40 Hertz.