V Part A Charge @ is distributed uniformly throughout the volume of an insulating sphere of radius R = 4.00 cm. At a distance of r = 8.00 cm from the center of the sphere, the electric field due to the charge distribution has What is the volume charge density for the sphere? magnitude 840 N/C. Express your answer with the appropriate units. 0 HA ? Xb a X . 10n X p= Value Units Submit Request Answer Part B What is the magnitude of the electric field at a distance of 2.00 cm from the sphere's center? Express your answer with the appropriate units. HA E= Value Units Submit Request