Never mind. I just figured it out.
First solve for δ:
δ=ħ/(2*m*U)1/2
Then use δ to solve for Energy, making sure to use diameter, not radius:
E=pi2*ħ2/(2*m*L2)
---> E = 1.72 MeV
Thanks, that explains the second part of the question. Still can't figure out how to do the first part. We have done finite potential well, but not shell. I looked up the equations in my book and think that I should use Schrodinger's time independent equation...
I've been working at this problem for about an hour and can't seem to make any progress. Any help would greatly be appreciated.
Homework Statement
Estimate the ground state energy level of a proton in the Al nucleus which has a potential energy of 100 MeV. Compare your answer to that...