Recent content by sugar_scoot

If I have a strong Magnetic field B0 in the z direction then any atoms inside will have their magnetic dipoles align in the z direction, but will rotate in the x-y plane at a larmor frequency ω. Because the dipoles are rotating in the x-y plane with a frequency ω, you will need to apply a not as...

In an adiabatic process dQ = 0 so that dU = dW. So then you use, C_{v} = ( \frac{\Delta U}{\Delta T})_{v} to make W = - n C_{v} (T_{f} - T_{i}) Is that right?

In the relationship W = - n C_{v} (T_{f} - T_{i}) If the volume changes in an adiabatic process why is C_{v} used?

Actually I just did the problem over again with the new integration limits and although my <cos\theta> is now correct, I still found a normalization constant of 2.

Thank you. Is there an intuitive reason why normalization is unnecessary in this case? Should I continue to attempt normalization as a first step in problems like these?

Given the number of molecules hitting unit area of a surface per second with speeds between v and v +dv and angles between \theta and d\theta to the normal is \frac{1}{2} v n f(v)dv sin \theta cos \theta d\theta show that the average value of cos \theta for these molecules is \frac{2}{3}. I...