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What is the electric field at a point when the force on a 1.45uC charge placed at that point is F=(3.0i-3.9j) * 10 ^-3N? Need to find a and B. Sorry I am new to this and do not know how to use the correct symbols. An edit would be helpful.

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closed as too localized by David Zaslavsky♦ Feb 10 at 21:33

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