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Unformatted text preview: Q = 82 . 9 C. (b) Now, we require that the x components cancel, and we note that in this case, the angle of force on q exerted by Q is + (it is repulsive, and Q is positivevalued). Therefore, k q 1 q ( . 02 2 ) 2 cos 45 = k Q q ( . 03 2 + 0 . 02 2 ) 2 cos from which we obtain Q = 55 . 2 C....
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 Fall '08
 SPRUNGER
 Physics, Charge, Force

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