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April 24, 2014

Homework Help: Physics

Posted by Stephanie on Tuesday, September 11, 2007 at 6:35pm.

I would like logic on how to solve this problem.

A styrofoam ball covered with a conducting paint has a mass of 5.0 x 10 ^-3 kg and has a charge of 4.0 microcoulombs. What electric field directed upward will balance the weight of the ball?

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