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September 20, 2014

Homework Help: physics

Posted by farah on Thursday, January 21, 2010 at 12:08pm.

Three equal positive point charges of magnitude Q = 4.00 C are located at three corners of a square of edge length d = 6.9 cm. A negative charge -14.00 C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due to the three positive charges?

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What is the magnitude of the attractive force on the negative charge?

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