What is the velocity of the buggy?

At 20 seconds the buggy will have a position of _ ?

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

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.

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?