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October 26, 2014

Homework Help: physics

Posted by Nicole on Wednesday, July 14, 2010 at 11:32am.

1. Two point charges are separated by 6 cm. The attractive force between them is 14 N. Find the force between them when they are separated by 12 cm.
2. The SI unit of mass is the kilogram. What is the SI unit of charge?
3. The proportionality constant k in Coulomb’s law is huge in ordinary units, whereas the proportionality constant G in Newton’s law of gravitation is tiny. What does this mean in terms of the relative strengths of these two forces?

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