1. The problem statement, all variables and given/known data Two conductors are separated by an insulator. Model the insulator as a square barrier of height 0.01 keV and a width of 5nm. Determine the transmission coefficients for electrons of 7,000 meV. The only thing is I have to use the approximation formula for finding the transmission coefficient of a barrier with arbitrary shape. 2. Relevant equations T(E)≈exp((-2/hbar)√(2m)∫√(U(x)-E)dx) 3. The attempt at a solution T(E)≈exp((-2/1.973keVA/c)√(2(511keV/c))∫(U(x)-E)dx) I'm not sure what I'm supposed to do for the ∫(U(x)-E)dx part. I solved the problem using the formula for the transmission coefficient for a square barrier and I got T≈0.96x10^-38. I'm pretty certain this is correct because there was a very similar example in my book. That formula had a (U-E) where I used 0.01keV-7000meV=.003keV If I enter .003keV for U(x)-E then I would get ≈(.907)^x And this is where I get stuck because I should somehow get an answer that is close to T≈0.96x10^-38 Any help would be appreciated!