When using the scientist method, which step comes last?

The velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

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.

What is the measurement of how fast an object moves relative to a reference point?