PHY 2049 Midterm: University of Florida PHY 2049 exam3_sols
Document Summary
If the pendulum is set swinging, what is the period t of small amplitude oscillations (i. e. , for small )? g. Solution: the magnetic eld does no work on the moving charge, so it can not change the. Answer : 2 pl/g period of oscillation, which for small amplitude oscillations is t = 2 pl/g. A particle of charge q and velocity ~v = v i enters the region of non-zero eld at the point with (x, y, z) coordinates (0, 0, 0). What are the coordinates of the point where the particle exits the region of nonzero eld? y. Solution: once the particle enters the region x > 0 it experiences the lorentz force, which leads to a centripetal acceleration. Using newton"s second law, mv2/r = qvb, so that the radius of the circle is r = mv/(qb) and the diameter is d = 2mv/(qb).
