-31 Suppose an electron (q = - e= - 1.6 x 10-19 C.m 9.1 x 10 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. The potential energy U is related to the electron charge (-e) and potential Vab is related by the equation: U = Assuming all potential energy U is converted to kinetic energy K, K +U = 0 K = -U Since K = mv and using the formula for potential energy above, we arrive at an equation for speed: V = ( 1/2 Plugging in values, the value of the electron's speed is: x 107 m/s V=

-31 Suppose an electron (q = - e= - 1.6 x 10-19 C.m 9.1 x 10 kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of the electron. Express numerical answer in two significant figures. The potential energy U is related to the electron charge (-e) and potential Vab is related by the equation: U = Assuming all potential energy U is converted to kinetic energy K, K +U = 0 K = -U Since K = mv and using the formula for potential energy above, we arrive at an equation for speed: V = ( 1/2 Plugging in values, the value of the electron's speed is: x 107 m/s V=

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: Electric Potential And Capacitance

Section: Chapter Questions

Problem 10P: Three particles with equal positive charges q are at the corners of an equilateral triangle of side...

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