An electron is accelerated from rest through a potential difference that has a magnitude of 3 x 107 Volt. The mass of the electron is 9.11 x 10-31 kilogram, and the negative charge of the electron has a magnitude of 1.60 x 10-19 C.
(a) Estimate the relativistic kinetic energy (in joules) of the electron?
(b) Estimate the speed of the electron?