A proton and an electron are both between the plates, ... ...

   A proton and an electron are both between the plates, and both are at rest at t = 0 seconds. How does the magnitude of the acceleration of the proton ap compare with the magnitude of the acceleration of the electron ae?
(A) ap = ae/2000
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 16. Atomic and Nuclear Physics