1. The problem statement, all variables and given/known data A thick spherical shell with inner radius R and outer radius S has a uniform charge density d.(A) What is the total charge on the shell? Express your answer in terms of R, S, d, and π. (B) Express the electric field as a function of distance from the center of the sphere r, R, S, d, and the permitivity of free space p for each of the following regions: 0<r<R , R<r<S, S<r 2. Relevant equations E = kQ/r2 V=(4/3)πr3 3. The attempt at a solution (For part A) Since its a thick shell the volume would be V = (4/3)π(S^3 - R^3) and dV = Qenc => d=Q/V so d = 3Q/(4π(S^3 - R^3)) (For part B) 0<r<R the electric field will be 0 because the electric field can't close on itself R< r< S E=kQenc/r2 = (4πkρ(r^3 - R^3))/3r^2 S<r E = kQ/r2 because the sphere can be treated as a point charge and the electric field is symmetric on a sphere Is this correct?