A positively charged particle Q1 = +5 nC is held fixed at the origin. A second charge Q2 of mass m = 7.5 μg is floating a distance d = 25 cm above charge Q1. The net force on Q2 is equal to zero. You may assume this system is close to the surface of the Earth. a) Make a drawing that represents the free-body diagram of charge Q2? b) What is the sign of the charge on Q2? d)Calculate the magnitude of Q2 in units of nanocoulombs.

A positively charged particle Q1 = +5 nC is held fixed at the origin. A second charge Q2 of mass m = 7.5 μg is floating a distance d = 25 cm above charge Q1. The net force on Q2 is equal to zero. You may assume this system is close to the surface of the Earth. a) Make a drawing that represents the free-body diagram of charge Q2? b) What is the sign of the charge on Q2? d)Calculate the magnitude of Q2 in units of nanocoulombs.

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