In the figure, a small spherical insulator of mass 6.00 x 10-2 kg and charge +0.400 uC is hung by a thin wire of negligible mass. A charge of -0.220 uC is held 0.290 m away from the sphere and directly to the right of it, so the wire makes an angle @ with the vertical, as shown. What is the angle 0 ? (k = 9.00x 109 Nm' /C2 (You must show your work in the input box. You must show your complete work for this problem including all equations in algebraic form and then show your calculations) - - - - - 0.290 m - - - - - - - +0.400 uC -0.220 uC