Physics PLEASE HELP ASAP :)
posted by Chelsea .
A small spherical insulator of mass 8.96 10-2 kg and charge +0.600 μC is hung by a thread of negligible mass. A charge of −0.900 μC is held 0.150 m away from the sphere and directly to the right of it, so the thread makes an angle θ with the vertical (see the drawing). Find the following.
(a) The angle theta=
(b) the tension in the thread= Answer in N