Recent content by b100c

Thanks BvU, that was a stupid mistake on my part. I replaced r with rsin(theta) in spherical coordinates and I got the correct answer.

Homework Statement A) [/B]Consider a hollow sphere of uniform density with an outer radius R and inner radius \alpha R, where 0\leq\alpha\leq1. Calculate its moment of inertia. B) Take the limit as \lim_{\alpha\to1} to determine the moment of inertia of a thin spherical shell. Homework...

Homework Statement Attached Homework Equations kinetic energy = (1/2) m v^2 potential energy = mgh The Attempt at a Solution Did I do this correctly, At the top, kinetic energy is 0 since it starts at rest. At the bottom we choose the potential to be zero So using conservation, mgz=...

Oh, okay I think I get it. I was under the impression that a macrostate is a way of distributing the 5 quanta into 4 atoms. And then the microstates are pemutations of that. Like 5-0-0-0 would be one macrostate with 4 microstates, and then 4-1-0-0 would be another macrostate with 12...

Hi, haruspex thanks for the reply. How do I know which macrostate to choose, do I just pick the most probable one (the one with the greatest number of microstates)?

Homework Statement Two identical brass bars in a chamber with perfect (thermally insulating) vacuum are at respective temperature T hot>T cold. They are brought in contact together so that they touch and make perfect diathermal contact and equilibrate towards a common temperature. We want to...