A small, 2.00-g plastic ball is suspended by a 20.0-cmlong
Chapter 15, Problem 15.83(choose chapter or problem)
A small, 2.00-g plastic ball is suspended by a 20.0-cmlong string in a uniform electric fi eld, as shown in Figure P15.52. If the ball is in equilibrium when the string makes a 15.0 angle with the vertical as indicated, what is the net charge on the ball?
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