The internal energy of a material is determined by . its temperature

the kinetic energy of its molecules

the potential energy of its molecules

the combined amount of kinetic and potential energy of its molecules

Which of the following is an example of units for speed

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

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