Answer: Electrons are accelerated through a potential
Chapter 37, Problem 37.36(choose chapter or problem)
Electrons are accelerated through a potential difference of 750 kV, so that their kinetic energy is 7.50 * 105 eV. (a) What is the ratio of the speed v of an electron having this energy to the speed of light, c? (b) What would the speed be if it were computed from the principles of classical mechanics?
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