An electron is accelerated from rest through a potential difference that has a magnitude of 2.70 × 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? (b) What is the speed of the electron? Express your answer as a multiple of c, the speed of light in a vacuum.
I was able to solve for Part A = 4.32e-12 J.
But I am unable to get Part B correct.
When I solved I obtained 9.484083425e18c.
Can you please help me solve Part B? Thanks.
1 answer