A small 2.00-g plastic ball is suspended by a 20.0-cm-long
Chapter 15, Problem 15.50(choose chapter or problem)
A small 2.00-g plastic ball is suspended by a 20.0-cm-long string in a uniform electric eld, as shown in Figure P15.50. 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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