In the drawing below, a nucleus has Q=+92e, and it is massive enough that we can assume that it doesn't move throughout the problem. Initially, the small proton (q=+e) is at rest and is 1 nm from the center of the nucleus. The proton is then released and accelerates away from the nucleus. In the picture, the distance between protonand nucleus is 10 nm. At this instant, what is the speed of the proton?

n = 10^-9

e = 1.60e-19 C

m = 1.67e-27 kg