A hallow conducting sphere of radius R= 0.17 meters rests on an insulated column and has a negative uniform charge density of 5.9 micro coulums/ meter^2. what is the force to the nearest tenth of a mN on a charge q=0.71micro coulums at the point p a distance of r=0.22 meters? and what is the magnitude of the electric field to the nearest tenth of a N/C?