8. A car moved 20 km East and 70 km West.
What is the distance?

What is the scientific definition of energy that relates to work

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.

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?