ch21-p042 - 42. Let q1 be the charge of one part and q2...

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42. Let q 1 be the charge of one part and q 2 that of the other part; thus, q 1 + q 2 = Q = 6.0 µ C. The repulsive force between them is given by Coulomb’s law: 12 1 1 22 00 () 44 qq q Q q F rr πε == . If we maximize this expression by taking the derivative with respect to q 1 and setting equal to zero, we find q 1 = Q /2 , which might have been anticipated (based on symmetry
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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