Recent content by Ron Burgundypants

  1. Ron Burgundypants

    Second order differential equation solution

    I don't understand what you've written or how you get there.
  2. Ron Burgundypants

    Second order differential equation solution

    I know the solution to the equation (1) below can be written in terms of exponential functions or sin and cos as in (2). But I can't remember exactly how to get there using separation of variables. If I separate the quotient on the left and bring a Psi across, aka separation of variables (as I...
  3. Ron Burgundypants

    Classical Book recommendation; magnetism/magnetic entropy related

    Thanks, I'll have a look, I also just found out the whole range is available for free pdf download
  4. Ron Burgundypants

    Classical Book recommendation; magnetism/magnetic entropy related

    I'm looking for a book to help me understand a project I'm working on measuring the magnetocaloric effect. I'd like to understand a bit more about the link between magnetism and entropy. I'm a third year bachelor student so I've studied no quantum mechanics (yet), but I'm not against doing so if...
  5. Ron Burgundypants

    Modeling an Einstein solid that is coupled to a paramagnet

    The effect of the phonons in the sample is something we haven't thought about, there would be some coupling but again, its a bit beyond my level.
  6. Ron Burgundypants

    Altered inductance around a solenoid in a cryostat (from Eddy currents?)

    I'm trying to use a solenoid to measure the magnetocaloric effect of dysprosium. The effect is highest at the Neel temp which is down near 180K. I have a solenoid in a cryostat to get the correct temperature. The cryostat's heat exchanger is made of a thick copper cylinder and I think it is...
  7. Ron Burgundypants

    Modeling an Einstein solid that is coupled to a paramagnet

    I'm working on a project at university to calculate the magnetocaloric effect of dysprosium. This will be done using a new technique designed at the university of which its not necessary to go into detail about. In short, the Dy is placed in a solenoid, through which a current runs, the current...
  8. Ron Burgundypants

    Eigenvalues and vectors of a 4 by 4 matrix

    Ok maybe I wasn't clear enough. Thanks for your response. I'm aware this is how you find the eigenvalue. My question is how do i solve the final expression to give me some eigenvalues. I also just realized I made a mistake... My actual final expression is λ4 - 2λ3k2 + λ2(k22+k2 - k1) + λ(k1k2 -...
  9. Ron Burgundypants

    Eigenvalues and vectors of a 4 by 4 matrix

    Homework Statement Coupled Harmonic Oscillators. In this series of exercises you are asked to generalize the material on harmonic oscillators in Section 6.2 to the case where the oscillators are coupled. Suppose there are two masses m1 and m2 attached to springs and walls as shown in Figure...
  10. Ron Burgundypants

    Momentum of a moon after a meteoroid strike

    Ah ok, I didn't spot that... doh... So I was nearly there... is this correct below? I've converted the linear momentum of the meteoroid to angular momentum by multiplying by the offset. So the momentum of the meteoroid is now Pm and the offset (where it impacts phobos) is still D. Iωpi + PmD...
  11. Ron Burgundypants

    Momentum of a moon after a meteoroid strike

    I didn't write the question... Sloppy it may be but that's what it says. The angular momentum of the meteoroid isn't calculated it's just given.
  12. Ron Burgundypants

    Momentum of a moon after a meteoroid strike

    Something isn't right in my second step. Can you tell me where the distance that the meteor impact on Phobos comes into the equation? Otherwise I don't see how to get a solution without the initial angular velocity of Phobos.
  13. Ron Burgundypants

    Momentum of a moon after a meteoroid strike

    Ok, well that confirms the first point. Might need a bit more help with this one though...
  14. Ron Burgundypants

    Momentum of a moon after a meteoroid strike

    Homework Statement Phobos is a small moon of Mars. For the purpose of the following problem, assume that Phobos has a mass of 5.8x10^15 kg and that it has a shape of a uniform sphere of radius 7.5x10^3 m. Suppose that a meteoroid strikes Phobos 5.0x10^3 m off center and remains stuck. If the...
  15. Ron Burgundypants

    I Second order, non-linear, non-homogeneous differential eq.

    I have a physics project at university, we designed an experiment to measure the effectiveness of Poiseuilles law in a 'quasi non-steady state'. Poiseuilles law, simply being the measurement of the flow rate of a fluid in a pipe, holding only under steady state though. So by quasi steady state I...
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