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Asked Dec 28, 2019
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A small sphere of mass m = 7.50 g and charge q1 = 32.0  nC is attached to the end of a string and hangs vertically as in Figure P15.4. A second charge of equal mass and charge q2 = -58.0 nC is located below the first charge a distance d = 2.00 cm below the first charge as in Figure P15.4. (a) Find the tension in the string. (b) If the string can withstand a maximum tension of 0.180 N, what is the smallest value d can have before the string breaks?

91 +
92
Figure P15.4
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91 + 92 Figure P15.4

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