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May 28, 2015

Homework Help: Physics

Posted by Newberger on Thursday, April 15, 2010 at 12:09pm.

Two 0.20 g metal spheres are hung from a common point by non-conducting threads that are 30 cm long. Both are given identical charges, and the electrostatic repulsion forces them apart until the angle between the threads is 20 degrees. How much charge was placed on each sphere?

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