1. The problem statement, all variables and given/known data I. A non-conducting sphere of radius a has a spherically symmetric, but non-uniform charge distribution is placed on it, given by the volume density function: p(r) = C·r, where C is a positive constant, and 0 < r < a. a. Find an algebraic expression for the total charge Q on the sphere, in terms of the parameters C and a. II. Use Gauss' Law to find an algebraic expression for the magnitude of the electric field at a distance R from the origin, in each of the following regions. Express your answer in terms of the following four parameters: the electrostatic constant k; the radius a of the sphere; the total charge Q on the sphere; and the radial distance R from the origin to the field point. b. Within the insulating sphere (i.e. for R <a): c. Outside the sphere (i.e. for R > a): 3. The attempt at a solution I got Q = Cpi(a^4) for part a which is correct. For part 2 I am stuck both b and c. I got [(KQR^4)/((a^4)(r^2))] which is incorrect.