A charge of 30 mc and a second charge are initially far, Ask an Expert

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A charge of 3.0 mc and a second charge are initially far apart. If it takes 29J of work tobring them to a final configuration in which the 3.0 mc is at x+1.0 mm, y-1.0mm, and the other charge is at x= 1.0mm, y= 3.0mm, find the magnitude of the unknown charge.

a)2.15mC

b)4.30 mC

c) 10.74mC

d) 4.30nC

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