Part A An electron is to be accelerated from a velocity of 3.00*106 m/s to a velocity of 7.50*106 m/s . Through what potential difference must the electron pass to accomplish this? ? V1 - V2 = V Submit Request Answer Part B Through what potential difference must the electron pass if it is to be slowed from 7.50x106 m/s to a halt? VO AEd ? V1 - V2= V