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A particle of charge ?7.5 mC is released from rest at the point x ? 60...

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Physics

A particle of charge ?7.5 mC is released from rest at the pointx ? 60 cm on an x axis. The particle begins tomove due to the presence of a charge Q that remains fixedat the origin. What is the kinetic energy of the particle at theinstant it has moved 40 cm if (a) Q ? ?20 mC and (b)Q ? ?20 mC?

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4.0 Ratings (803 Votes)
aIf the charge Q is 20 mC then the charge 75 mC will moveaway from QTherefore the initial position of the charge 75 mC is 60cm 06m from Q and the final position is    See Answer
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