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A tiny, 0.60-g ball carries a charge of magnitude 8.0 C. It is suspended by a thread in a downward 300 N/C electric field. What

A tiny, 0.60-g ball carries a charge of magnitude 8.0 µC. It is suspended by a thread in a downward 300 N/C electric field. What is the tension in the thread if the charge on the ball is (a) positive (b) negative?

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