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  • 4 years ago

OK, one more and I think I will have it for this HW set. A charge of 1.82E-9 C is placed at the origin, and a charge of 4.32E-9 C is placed at x = 1.26 m. Find the position at which a third charge of 3.05E-9 C can be placed so that the net electrostatic force on it is zero. Thanks for all of your help!!

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  1. anonymous
    • 4 years ago
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    \[F = k_e {q_1 q_2 \over r^2}\]The third charge must be placed such that\[F_{1/3} = F_{2/3}\]We know \(k_e\), we know the charges, we can find the radius.

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