1. The problem statement, all variables and given/known data There were two parts to this problem a) if you do 12 J of work to push 0.001 C of charge from point A to point B in an electric field, what is the voltage difference between A and B? I already solved this part, I got [tex]\Delta[/tex]V=12,000 V b) When the charge is released, what will be its kinetic energy as it flies back past its starting point A? What principle guides your answer? Here i have absolutely no idea what to do. 2. Relevant equations [tex]\Delta[/tex]V=W/q [tex]\Delta[/tex]V=[tex]\Delta[/tex]PEelectric/q 3. The attempt at a solution I've gotten through part A but i have no idea how to approach part B.