1. The problem statement, all variables and given/known data A sphere with radius 65 cm has its center at the origin. Equal charges of 4 μC are placed at 60◦ intervals along the equator of the sphere. What is the electric potential at the origin? 2. Relevant equations V=KQ/R 3. The attempt at a solution I just plug the numbers in this equation but no good. I think it might have to do with the degree sign or its on the origin. Note: I did not do sine or cosine for the degree because my notes did not show any sine or cosine for electric potential.