A Proton (Charge = E,mass = 1

Multiple Choice

A proton (charge = e,mass = 1.67  10^-27 kg) with initial kinetic energy 3 MeV is fired head-on towards a fixed stationary uranium nucleus (charge 92e,mass = 3.95  10^-25 kg) .Calculate how close to the uranium the proton gets before it comes to rest.(Assume the uranium nucleus does not move.)

A) 2.75  10⁵ m
B) 4.40  10^-8 m
C) 4.40  10^-14 m
D) 2.10  10^-7 m
E) none of the above