An electron is accelerated from rest through a potential difference that has a magnitude of1.65 107 V. The mass of the electron is 9.11 10-31 kg, and the negative charge of the electron has a magnitude of
1.60 10-19 C.
A) what is the relativistic kinetic energy (in joules) of the electron?
____________ J
B) What is the speed of the electron? Express your answer as a multiple of C, the speed of light in a vacuum. (give your answer to four significant figures.)
______________ c