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    Compound ballistic pendulum

    Hello. I am doing a ballistic pendulum lab, and I have gotten stuck at a preparatory exercise. The problem is that the pendulum must be treated as a compound pendulum and not a simple pendulum. Homework Statement We have a compound pendulum which is a metal rod of mass M suspended at some...
  2. I

    Angular momentum in QM

    Hello, I'm trying to solve a problem dealing with finding the probability of measuring certain values of L^2 for a particle. The particle is on a sphere and is in the state \Psi (\theta , \phi) = Ne^{\\cos{\theta }}. I don't know quite how to start, I guess I have to decompose the wave...