1. The problem statement, all variables and given/known data A nonconducting sphere has radius R = 2.70 cm and uniformly distributed charge q = +7.00 fC. Take the electric potential at the sphere's center to be V0 = 0. (a) What is V at radial distance r = 1.45 cm? (b) What is V at radial distance r = R? 2. Relevant equations E = Vdv V = k (q / r) 3. The attempt at a solution I was about to just integrate E from zero to r1 and then r2, but then I realized that as r increases, so does q so I can't just have a simple single integration. And then I didn't know what to do. Help? Thanks.