Arooster laid an egg on top of the barn roof. which way did it roll?

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Which sound characteristic is not affected by the relative motion of an object