Recent content by Jansen

I will reply to every one with one message instead of individually. First u/bystander, I do not like to say that thermal contact means thermal contact. This means thermal contact can mean anything which is not true, or that meaning of the word thermal contact is irrelevant which is also false...

This is not a homework problem. I want to relay a statement made by my professor. From his online script: "0th law of thermodynamics: If two subsystems I,II are separately in thermal contact with a third system, III, then they are in thermal equilibrium with each other." He stated this in...

Aha! Perfectly clear now. Thank you very much!

Yes, I see this works. I am not too sure why this is so. According to the UT reference provided ##Q_i = \sum_{j} F_j \frac{\partial x_j}{\partial q_i}##. Perhaps my interpretation is wrong. But I think that means (since I am going from spherical to spherical coordinates): $$Q_1 = F_r...

Homework Statement Show that the Lagrangian $$ L = \frac{m}{2}(\dot{r}^2 + r^2\dot{\theta}^2 + r^2\dot{\phi}^2sin^2\theta) - qg\dot{\phi}cos\theta $$ describes the motion of a charged particle (mass ##m## charge ##q##) in the magnetic field ## \vec{B} = g\vec{r}/r^3## (##g## is a constant)...

Hello all, I signed up here specifically because I have a question. I feel it behooves me to join a community such as this as I am a third semester physics (bachelor) student at a German university which means I am only 2/3 of the way there. Basically I can use all the help I can get. Jansen