CP A small sphere with mass 4.00 X 10-6 kg and charge 5.00 X 10-8 C hangs from a thr...

CP A small sphere with mass 4.00 X 10^-6 kg and charge 5.00 X 10^-8 C hangs from a thread near a very large, charged insulating sheet (Fig. P22.33). The charge density on the surface of the sheet is uniform and equal to -2.50 X 10^-9 C/m². Find the angle of the thread.