1. The problem statement, all variables and given/known data An electron starts from one plate of a charged closely spaced (vertical) parallel plate arrangement with a velocity of 1.63 x 10^4 m/s to the right. Its speed on reaching the other plate, 2.10 cm away is 4.15x10^4 m/s I got parts a and b - part C is what I'm having problems with. C) If the plates are square with an edge length of 25.4 cm, determine the charge on each. 2. Relevant equations E=(4πkQ)/A 3. The attempt at a solution I substituted for all the unknowns except for E and Q - but that leaves me with two unknowns; I'm completely flabbergasted with what to do next.