Recent content by notist

I've been trying to solve a structural mechanics problem from the book Mechanics of Materials, but the results I acquired weren't very satisfying. Here it is Homework Statement [PLAIN]http://img42.imageshack.us/img42/4375/p17n.jpg Homework Equations Average Stress: \sigma= F/A...

Oh, sorry. My teacher didn’t explain this in class, so I’m supposed to learn it all by myself. That’s why I don’t really know how to do this. From some research in books I got: a) The perturbed hamiltonian is: H=p2/2m+1⁄2 mw2-Ex, with Ex being the electric potencial energy. Also, the...

Homework Statement An electron is confined by the potential of a linear harmonic oscillator V(x)=1/2kx2 and subjected to a constant electric field E, parallel to the x-axis. a) Determine the variation in the electron’s energy levels caused by the electric field E. b) Show that the second order...