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Two Ping-Pong balls each have a mass of 2.6 g and carry a net charge of...

Two Ping-Pong balls each have a mass of 2.6 g and carry a net charge of 0.500 μC . One ball is held fixed. Part A At what height should the second ball be placed directly above the fixed ball if it is to remain at rest there? Express your answer to two significant figures and include the appropriate units.

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for rest Positon of ball-T

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