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The Charge and Forces of Pith Balls

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Two charged pith balls are suspended on very light 12.0 cm strings. Each has a mass of 10.0 g. In equilibrium, the total angle between the strings is 50.0 degrees. Draw a free-body diagram for one of the pith balls and clearly label all forces with magnitude and direction. Assuming the pith balls are equally charged, what is the charge on each ball? Note: This is not a qualitative prediction; a numerical answer must be obtained.

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Solution Summary

The charge of two pith balls are determined. A diagram labelling forces, magnitude and direction of the pith balls is also included.

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