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April 18, 2014

Homework Help: physics

Posted by teri on Thursday, September 3, 2009 at 7:40pm.

A small plastic ball with a mass of 7.00 10-3 kg and with a charge of +0.162 ÁC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0░ with respect to the vertical. The area of each plate is 0.0145 m2. What is the magnitude of the charge on each plate?

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