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A +30 μC point charge is placed 32 cm from an identical +30 μC charge. Part...

A +30 μC point charge is placed 32 cm from an identical +30 μC charge. Part A How much work would be required for an external force to move a +0.70 μCμC test charge from a point midway between them to a point 12 cm closer to either of the charges? Express your answer using two significant figures.

Second time posting and I'm desperate. I've worked this problem every way I know and unless I have a correct answer for the online homework, I won't be able to work the problem backward to learn to understand it. Thanks!

The answer is not W= 3.78J

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Answer #1

We will add a calculate the total work by adding a work done against the each charge.

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