Recent content by MadMatSci

Thank you very much for your help!

I did not think that I could just assume r=1.5. I thought it had to be valid for all r until mfb indicated otherwise.

Wow. Thank you. I did not realize that E=.9 EAttr is valid at r0 only. I guess it does make sense though since at equilibrium it is possible to determine what fraction of the total energy is attractive and repulsive. Thanks again!

Homework Statement The total energy for a Van der Waals bonded solid is: E=-\frac{A}{r^6}+B*e^{-\frac{r}{\rho}} where the 1st and 2nd terms are for attraction and repulsion respectively, A and B are constants, r is the inter-atomic distance, and \rho is the range of interaction (i.e...