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Two point charges of +30.0 μC and -9.00 μC are separated by a distance of 20.0...

Two point charges of +30.0 μC and -9.00 μC are separated by a distance of 20.0 cm. What is the intensity of the electric field E midway between these two charges? A. 18.1x106 N / C, towards positive charge b. 35.1x106 N / C, towards negative charge c. 0 N / C d. 18.1x106 N / C, towards negative charge

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