Suppose an electron (q = - e = -1.6 × 10¬19 C,m=9.1 × 10¯3! kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of th 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 1 Since K = mv and using the formula for potential energy above, we arrive at an equation for speed: 1/2 Plugging in values, the value of the electron's speed is: x 107 m/s

Suppose an electron (q = - e = -1.6 × 10¬19 C,m=9.1 × 10¯3! kg) is accelerated from rest through a potential difference of Vab = +5000 V. Solve for the final speed of th 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 1 Since K = mv and using the formula for potential energy above, we arrive at an equation for speed: 1/2 Plugging in values, the value of the electron's speed is: x 107 m/s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter16: Electrical Energy And Capacitance

Section: Chapter Questions

Problem 28P: In the classical model of a hydrogen atom, an electron orbits a proton with a kinetic energy of...

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