AP PHYSICS PLEASE HELP
posted by Sanjida .
A spherical surface has a radious of .150 meters. A charge of +85.0 uC is placed on the sphere.
A. decribe what happens to the electric potential of a 5.0 pC charge that is moved from a very far distance from the sphere to a point 0.100 meters away from the sphere.
B. Decribe what happens to the electrical potential energy of the 5.0 p

Describe? Goodness
a) potential= kQ/r where r=.250microC
b) don't know, question incomplete. 
B. Decribe what happens to the electrical potential energy of the 5.0 pC charge as it is moved the distance described in A.