Part A\ A

2.6mm

-diameter sphere is charged to

-4.6nC

. An electron fired directly at the sphere from far away comes to within 0.35

mm

of the surface of the target betore being reflected.\ What was the olectron's initial spoed?\ Express your answer in meters per second.

(m)/(s)

\ Previous Answers Request Answer\ Incorrect, Try Again; 4 attempts remaining\ Part B\ At what distance from the surface of the sphere is the electron's speed half of its initial val Express your answer in meters.

A 2.6mm-diameter sphere is charged to 4.6nC. An electron fired directly at the sphere from far away comes to within 0.35 mm of the surface of the target belore being reflected. What was the olectron's initial speed? Express your answer in meters per second. Incorrec Try Again; 4 attempts remaining Part B At what distance from the surface of the sphere is the electron's speed halt of its initial val Express your answer in meters