A solid metal sphere of radius 3.00 m carries a total charge of -3.00 µC. What is the magnitude of the electric field at each of the following distances from the sphere's center?
(a) 0.10 m
(b) 2.90 m
(c) 3.27 m
(d) 5.00 m
(e) How would the answers differ if the sphere were a thin shell?