A small plastic ball of mass m 5 2.00 g is suspended by a
Chapter , Problem 52(choose chapter or problem)
A small plastic ball of mass m 5 2.00 g is suspended by a string of length L 5 20.0 cm in a uniform electric field, as shown in Figure P15.52. If the ball is in equilibrium when the string makes a u 5 15.0 angle with the vertical as indicated, what is the net charge on the ball?
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