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A + 7.8 nC point charge is 7 cm from a - 6.1 C point charge in your laboratory in California. How much work would

A + 7.8 nC point charge is 7 cm from a - 6.1 C point charge in your laboratory in California. How much work would you have to do if you left the +7.8 nC charge in the lab but took the -6.1 C charge to New York City? Express your answer in mJ with one decimal place. Only the numerical value will be graded. (k = 1/40= 9.0 109N m2/C2)

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