(Answered) An electron with electric charge of 1610-19 c falls through

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An electron with electric charge of 1.610-19 C falls through a potential difference of 56 kV in the vacuum of an X-ray tube. What is the kinetic energy of the electron, assuming it started from rest and that there is no loss of energy to friction? (Note:1 volt = 1 joule/coulomb.)

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