One end of a metal rod is placed in a hot fire. at the atomic level, how does heat transfer down the length of the rod?

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.