Recent content by Dan.kl

I am doing a question about oxygen in a cubical container, and am being asked to find the average force a molecule exerts on one of the walls of the container. I know the force is equal (in magnitude) to the rate of change of momentum of the molecule, but how can I know the duration of the...

im guessing instead of (B/mu)y it should be (B/mu)u so yeh find partial derivatives of u wrt x and t, sub these in and sub in cos(kx-wt) for u and it all works out dispersion relation w(k) is √((k^2T + B)/mu) find v from v = w/k and v_g from v_g = dw/dk