1. The problem statement, all variables and given/known data The nucleus of an atom has a charge of 65 protons. (a) What are the direction and magnitude of the electric field at 4.9 x 10^-10 m from the nucleus? (b) What are the direction and magnitude of the force exerted on an electron located at this distance? 2. Relevant equations E= KQ/d^2 K= 9 x 10^9 3. The attempt at a solution (a) (9 x 10^9)(65)/(4.9 x 10^-10)^2 = 2.44e30 N Please help clarify if (a) is correct, and what exactly is (b) asking, if any different from (a)?