A sample of nitrogen gas is inside a sealed container. The volume of the container decreases while the temperature is kept constant. This is a process. a) isothermal
b) constant-volume
c) adiabatic
d) isobaric

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?