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December 5, 2016

Homework Help: Physics

Posted by Sarah on Sunday, January 13, 2008 at 10:32pm.

A positive charge of 3.0e-6 C is pulled on by two negative charges. One, -1.9e-6 C, is 0.045 m to the north and the other, -3.7e-6 C, is 0.030 m to the south. What total force is exerted on the positive charge?

F=kqq/d^2
You would have to find the F exerted by each. The first negative charge is going to attract to the positive charge and the second negative charge is going to attract to the negative charge. Does this have anything to do with way in which you add up the F in order to find the F exerted on the positive charge?

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