Recent content by mm8070

I want to design a system of some kind that will photodissociate isolated diatomic molecules. I began by looking at Einstein's treatment of absorption and emission rates, molecular orbital geometry, the Morse potential and various other topics. I'm fairly well versed in quantum and E&M (full...

Ah, you're right. The diameter of hydrogen is about 0.1nm. Even so, an electron is very small compared to the size of one hydrogen atom. I would still assert that 0.1nm is a large uncertainty for x.

Considering the size of an electron compared to an atom, yes, an uncertainty of 0.1nm (about ten times the diameter of one hydrogen atom) is very large. As for KE: I believe I'm correct in calculating the smallest possible momentum. If you compare the momentum uncertainty to the smallest...

The uncertainty is delta x delta p >= (hbar)/2 so you want (h bar)/(2*delta x) ~ delta p = (1.05e-34 Js)/(2*(0.1 nm)) = 5.5e-25. Second, consider the possibilities of momentum in that small amount of space. The wavelength of the electron would have to be less than 0.1nm so the smallest momentum...

Maybe i should have written the equation as Ueff(r) = (angular momentum)2/2mr2 + U(r). Where U(r) is the potential energy. I also should have mentioned that part b says to use the section in my book about hyperbolas to show that the distance of closest approach is k/(ε + 1) where k and ε are...

Homework Statement A particle, unknown mass, has velocity v0 and impact parameter b. It goes towards a planet, mass M, from very far away. Find from scratch (? I'm not sure why it says from scratch), the distance of closest approach. Homework Equations I believe this equation is...