Part A An electron is to be accelerated from a velocity of 2.00×106 m/s to a velocity of 7.50×106 m/s. Through what potential difference must the electron pass to accomplish this? Express your answer in volts. Submit Request Answer Part B Through what potential difference must the electron pass if it is to be slowed from 7.50×106 m/s to a halt? Express your answer in volts.