1. The problem statement, all variables and given/known data An insulating sphere of radius 0.240 has uniform charge density 6.50×10−9 . A small object that can be treated as a point charge is released from rest just outside the surface of the sphere. The small object has positive charge 4.10×10−6 How much work does the electric field of the sphere do on the object as the object moves to a point very far from the sphere? 2. Relevant equations 3. The attempt at a solution I tried to use kQq/r to find the work done but I'm honestly very lost about where to start. Any help is extremely appreciated, thanks.