A tornado traveled east across the United States a distance of 600 meters in 6 minutes. What was the velocity of the tornado? A plane flew north for 1,000 kilometers in 10 hours. What was the plane's speed?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

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.