As shown in the diagram, three large, thin, uniformly charged plates are arranged so that there are two adjacent regions of uniform electric field. The origin is at the center of the central plate. Location A is m, and location B is m. In region 1 the electric field is = V/m. In region 2 the electric field is = V/m. (a) Consider a path from A to B. Along this path, what is the change in electric potential? (b) What is the change in electric potential along a path from B to A? (c) There is a tiny hole in the central plate, so a moving particle can pass through the hole. If a proton started at A and moved to B along the path shown, what would be the change in its kinetic energy? If the proton had kinetic energy 4e-18 3 when it is at location A what would the kinetic energy of the proton be upon reaching location B?