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Problem A-2.80 HC point charge is fixed at the origin of the x axis. A-7.80 uC point charge of mass 1.50 grams is moving along the r axis from the +x direction toward the charge at the origin. It has a speed of 22.0 ms when it is atx 0.800 m.Ignore gravity. Calculate (a) the total energy of the-780 pC when it is at x-0.800 m. 0.609 J (b) the position along the x axis where the speed of the -7.80 pC charge is zero 0.323 m
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