A-3.0 µC point charge and a -9.0 µc point charge are initially extremely far apart. How much work does it take to bring the -3.0 µC charge to x= 3.0 mm y= 0.0 mm and the -9.0 µC charge to x= -3.0 mm y= 0.0 mm ? (k = 1/4nE, = 8.99 x 10°N• m?/c3) A. 40J • B. 27J C. 6.8J D. 81 |
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