An electron is accelerated to a speed where its total energy is $247$ times larger than its rest energy.

How many times is the kinetic energy of the electron larger than its rest energy?

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What is the kinetic energy of the electron?

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What is the speed of the electron in terms of the speed of light?

$($In this part of the problem you have to enter your answer with seven or eight digits!$)$

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What is the momentum of the electron measured in MeV$/$c units? $($Enter only a number without the MeV$/$c unit.$)$