A small spherical insulator of mass 5.49 × 10-2 kg and charge+0.600 μC is hung by a thin wire of negligible mass. A charge of-0.900 μC is held 0.150 m away from the sphere and directly to theright of it, so the wire makes an angle with the vertical (see thedrawing). Find (a) the angle and (b) the tension in the wire.
