A nonconducting solid sphere of radius 11.6 cm has a uniform volume charge density. The magnitude of the electric field at 23.2 cm from the sphere's center is 1.91x10^3 N/C.
(a) What is the sphere's volume charge density? (µC/m3 )
(b) Find the magnitude of the electric field at a distance of 5.00 cm from the sphere's center. (N/C)