A parallel plate capacitor is made of two 3.5 cm x 3.5 cm square plates that are separated by 1.6 x10 -5 m. The plates are charged to 4.8 nC each (positive and negative). An electron is released from rest at the surface of the negative plate and simultaneously a proton is released from rest at the surface of the positive plate.
a. What will be the speed of the electron when it reaches the positive plate?
b. What will be the speed of the proton when it reaches the negative plate?