A ball with a mass of 1.5000 105 kg hangs from a 23.00 mm thread between two parallel plates. The thread is deflected to the side at an angle of 12. The charge on the ball is 2.60 108 C, and gravity is considered in this problem. Which plate is negative, and which is positive? How do you know? Bold text start(3 marks)Bold text End What is the magnitude of the electric field between the plates? Include an FBD. Bold text start(7 marks)Bold text End If the distance between the two plates is 0.950 cm, what is potential difference across the plates