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What is the magnitude of the electric field at a point midway between a −7.1μC−7.1μC and...

What is the magnitude of the electric field at a point midway between a −7.1μC−7.1μC and a +7.4μC+7.4μC charge 8.6cm8.6cm apart? Assume no other charges are nearby.

Express your answer using two significant figures.

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