Hello. I come across a problem: how to calculate the partition function of a classical spring whose energy is 1/2kx^2, and use thermodynamics to show that the force on the spring is linearly proportional to its elongation x?
I got stuck at the first step. What is the energy of the spring, is...
Hey there. I have a problem about rolling ball and it's from my homework.
1. Homework Statement
A ball rolls down the surface of a rough fixed sphere of radius r, starting rest at the top. What's its speed when the line between the two centres makes an angle alpha with the upward...