$4.79 \times 10^{14} \textrm{ m/s}^2$

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This is College Physics Answers with Shaun Dychko. We're going to calculate the acceleration of a proton in the presence of an electric field of five times ten to the six Newtons per Coulomb. So because it's a proton, we know its charge is the elementary charge of 1.6 times ten to the minus 19 Coulombs. And we also know its mass of 1.67 times ten to the minus 27 kilograms. Now the net force on the proton is mass times its acceleration and we can divide both sides by <i>m</i> to solve for <i>a</i>. So it's the force divided by <i>m</i>. And the force in this case is the electric field multiplied by the charge. And so we have <i>Eq</i> substituted for <i>F</i>. And so we have five times ten to the six Newtons per Coulomb times the charge divided by the mass giving an acceleration of 4.79 times ten to the 14 meters per second squared.