A small ball with a mass of 49.0g and a charge of ?0.170?C is suspended from the ceiling by a string. The ball hangs at a distance of 5.00cm above an insulating floor. If a second small ball with a mass of 68.0g and a charge of 0.330?C is rolled directly beneath the first ball, will the second ball leave the floor?
What is the tension in the string when the second ball is directly beneath the first ball?