1. The problem statement, all variables and given/known data 2. Relevant equations See question 3. The attempt at a solution Ok 1a) is dead simple. But I am struggeling with part b. I plug in all the variables. But cannot seem to get a and b..... I do this: (-b)(S_x)(a,b) = E(a,b) and then get -b^2h/2= Ea and ah/2=E I dont know.. Can you guys help me.