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03-30-2008, 11:37 PM
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| Physics help?
I have two problems that I really can't figure out: 1. Two charges attract each other with a force of 1.0 N. What will be the force if the distance between them is reduced to one-ninth of its original value? 2. Two very small spheres are initially neutral and separated by a distance of 0.50 m. Suppose that 2.50 x 10^13 electrons are removed from one sphere and placed on the other. What is the magnitude of the electrostatic force that acts on each sphere? I know that I need to use Coulomb's law somehow to solve these but I'm not sure where to begin or how to set it up. Any help on how to solve either of these problems would be greatly appreciated.      |
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