Two square conducting plates 20 cm on a side are separated by 3.5mm and have a charge of 4 micro Coulombs. A positive charge of 3.2xl0^-19 C is at rest on the positive plate. It has a mass of 4.5 x10^-26kg.
1. With what velocity with the charge strike the negative plate?
2. How much work is done on the charge by the electric field through the motion?
3. What is the electric field strength between the plates and the potential dissimilarity between the plates?