A small ball with a mass of 30.0 g and a charge of -0.200 uC is suspended from the ceiling by a rope. The ball hangs 5.00 cm above an insulating floor. If a second small ball with mass 50.0 g and charge 0.400 μC rolls directly under the first ball, does the second ball leave the floor? What is the tension in the string when the second ball is directly below the first ball?

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