What was the electron''s initial speed

Question # 00766558 Posted By: Jackson234 Updated on: 06/24/2020 04:37 AM Due on: 07/02/2020
Subject Physics Topic General Physics Tutorials:
Question
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A 2.4mm -diameter sphere is charged to -4.5nC . An electron fired directly at the sphere from far away comes to within 0.32mm of the surface of the target before being reflected.

A) What was the electron's initial speed?

B) At what distance from the surface of the sphere is the electron's speed half of its initial value?

C) What is the acceleration of the electron at its turning point?

 

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