Again I am not ssure what to do. An electron(mass 9.11x10^-31kg) is accelerated in a uniform E field (E=3.0x10^4 N/C) between two parallel charged plates. The separation of the plates is 1.6cm. The electron is accelrated from rest near the negative plate and passes through a tiny hole in the positive plate. With what speed does the electron emerge from the hole? I was thinking you would use qE=ma to find the acceleration, then use kinematics to find the velocity but i am not sure. I would really be happy if anyone can help.