Two 1.0 g balls are connected by a 2.0-cm-long insulating
Chapter 23, Problem 23.20(choose chapter or problem)
Two 1.0 g balls are connected by a 2.0-cm-long insulating rod of negligible mass. One ball has a charge of +10 nC, the other a charge of -10 nC. The rod is held in a 1.0 * 104 N/C uniform electric field at an angle of 30 with respect to the field, then released. What is its initial angular acceleration?
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