(Solved): An electron is accelerated to a speed where its total energy is 243 times larger than its rest ene ...

An electron is accelerated to a speed where its total energy is 243 times larger than its rest energy. How many times is the kinetic energy of the electron larger than its rest energy? 242 Previous Tries What is the kinetic energy of the electron? \( 1.24 \times 10^{2} \mathrm{MeV} \) You are correct. Your receipt no. is 154-5316 (2) What is the speed of the electron in terms of the speed of light? (In this nart of the problem you have to enter your answer with a precision of seven or eight digits!) Hints: You already know the Lorentz gamma factor. From that you can determine the speed of the electron measured in terms of the speed of light i.e. the beta factor. Tries 6/99 Previous Tries What is the momentum of the electron measured in \( \mathrm{MeV} / \mathrm{c} \) units? (Enter only a number without the MeV/c unit.) Hint: What is the relationship between rest energy, total energy, momentum and speed of light? Tries 1/99 Previous Tries