Recent content by w3390

  1. W

    Research assistant wages?

    Ya, Norman. I do need to incorporate fringe benefits as well. If you happen to have your proposals easily at hand then that would be great. If not, don't worry about it. The PhD is not necessarily in physics. In this particular case, we have a Biochemist, a Physicist, and a Materials...
  2. W

    Research assistant wages?

    So I have to put together a mock budget for a funding proposal. I am unsure, however, how much I need to pay the research assistants I will have working on the project. I also don't have a good idea of how much a professional with a PhD or master's would be paid to work on a project. I...
  3. W

    Best Guitarist Ever

    Marty Friedman and Jason Becker. Just listen to this song Concerto.
  4. W

    Undergrad Research

    Doe anyone have any actual research experience? Like the guys above said, what can you actually do with only a couple years of undergraduate education?
  5. W

    Undergrad Research

    Hi guys, This summer I am looking to get involved in research at my university. I am eager to go and meet with a professor to see if I can hold a position for him, but I am very intimidated and I sometimes feel like I don't know enough to contribute to a research team. I have been told...
  6. W

    Inertia tensor

    Okay, so I think I figured out my problem. I was doing something wrong with the component form. Here is what I got for my inertia tensor: I_11 = 0 I_22 = (1/3)ml^2 I_33 = (1/3)ml^2 I_12 = I_21 = 0 I_13 = I_31 = 0 I_23 = I_32 = 0 So it looks something like this...
  7. W

    Inertia tensor

    Homework Statement A thin rod has mass M and length L. What is the moment of inertia tensor about the center of mass if placed along the x axis. Homework Equations I would write the inertia tensor in component notation, but I don't know how to use Latex. The Attempt at a Solution...
  8. W

    Energy in infinite square well

    I don't think it's an algebraic error. I have worked the problem through, once using endpoints x=0 and x=L and again using x=-L/2 and x=L/2 and I don't get the same answer. In the case where I am going from 0 to L, I get that the energy is E=(n^2*h^2)/8mL^2, which is correct. In the case...
  9. W

    Energy in infinite square well

    Homework Statement Find the energy of a particle of mass m in an infinite square well with one end at x=-L/2 and the other at x=L/2. Homework Equations Schrodinger Equation The Attempt at a Solution To save time, I won't type the solving of the differential equation which results...
  10. W

    Relative speed of two particles

    Nevermind, I got it. Thanks SammyS.
  11. W

    Relative speed of two particles

    Okay, so v dot u in the denominator will be zero, leaving just the 1. However, I'm still confused about u(perp) and u(para). Wouldn't u(perp) just be u and u(para) just be zero?
  12. W

    Relative speed of two particles

    Homework Statement One particle is shot in the x direction at speed u and a second is shot in the y direction at speed u as well. Show that the relative speed of one to the other is: u(2-(u/c)^2)^1/2. Homework Equations velocity addition: u = (u' +/- v)/(1 +/- u'*v) Lorentz Trans...
  13. W

    Reading spacetime diagrams

    Yes, you're right. I had drawn my line incorrectly. Instead of drawing it as .8c I drew it as 5/4 c. I've got it now. Thanks.
  14. W

    Reading spacetime diagrams

    Each of the spaceships are moving towards each other. So the ship that launches from x=0 is moving towards x=4 and vice versa. I am giving the coordinates as (x,t).
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