(a) show that the heat capacity of a one-dimensional array of n coupled linear oscillators is given by cy3nkx (e - 1)2 where x hvlkt, and it is assumed that both longitudinal and transverse waves can propagate along the array. (b) evaluate this expression for cy in the low and high temperature limits.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.

What word chemical equation describes cavendish’s experiment with zinc?