P22_008 - 8. With rightwards positive, the net force on q3...

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8. With rightwards positive, the net force on q 3 is k q 1 q 3 (2 d ) 2 + k q 2 q 3 d 2 . We note that each term exhibits the proper sign (positive for rightward, negative for leftward) for all possible signs of the charges. For example, the ±rst term (the force exerted on q 3 by q 1 ) is negative if they are unlike charges, indicating that
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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