(a) from a knowledge of the partition function z, write an expression for entropy s of an ideal fd gas. 1. express your answer solely in terms of n,, average occupancy number of the sth state. (b) write a similar expression for the entropy s of a be gas. (c) what do these expression for s become in the classical limit, when n1

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?