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speed of electron

Suppose I put in 10keV (1eV = 1.6 x10-19J; 1keV = 103eV) of work to accelerate an electron (rest mass = 9.1x10-31 kg). With this amount of work, up to what speed (in terms of c) can the electron be accelerated if it starts from rest?

Solution Summary

It finds the final speed of the electron given the work exerted to accelerate it. The solution is detailed and was rated '5/5' by the student who posted the question.