Recent content by Jansen

  1. J

    What is the Zeroth Law of Thermodynamics and why is it causing confusion?

    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...
  2. J

    What is the Zeroth Law of Thermodynamics and why is it causing confusion?

    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...
  3. J

    Lagarangian of a charged particle in a magnetic field (magnetic monopole)

    Aha! Perfectly clear now. Thank you very much!
  4. J

    Lagarangian of a charged particle in a magnetic field (magnetic monopole)

    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...
  5. J

    Lagarangian of a charged particle in a magnetic field (magnetic monopole)

    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)...
  6. J

    What is the best way to seek help as a physics student?

    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
Back
Top