A proton with energy 44 MeV is in a nuclear potential well 50 MeV deep. The proton "sees" a Coulomb barrier 10-15 m wide at the nuclear surface. (a) Use the following equation (6-76 in Modern Physics 6E by Tippler/Llewellyn) to compute the probability that the proton will tunnel through the barrier on a single approach. E -2aa T≈ 16 (1) e- E Vo - (16) (b) Assuming that the radius R of the nucleus is 10-15 m and the proton is nonrelativistic, compute the rate at which protons would be emitted (i.e., decay) from a sample of these nuclei. (c) By what factor does your answer to part (b) change if the width of the barrier is 2 x 10-15 m?