Cylindrical shell of inner radius R, = 1.72R and outer radius R2 = 3.18R is filled uniformly with charge density p. A point charge Q - 7.8q is located at point A a distance 7.94R from the center of the cylinder. What is the magnitude of the force acts on the cylinder by the point charge . Express your answer in terms of qpR./co using two decimal places. P C O' R2 A