a) In which cases in the table does the acceleration match g (the acceleration due to gravity, 9.8 m/s2)? Are the matches to g coincidences or not? Explain your answer.

In a system, when potential energy decreases, then entropy also decreases. true false

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.