Aballoon is floating freely at a rate of 0.87 m/s due south. a southerly breeze (coming from the south) blows against the balloon with a velocity of 0.32 m/s. what is the velocity of the balloon and the direction it is traveling? ans- velocity= direction =

What should the power status of a circuit be when measuring resistance with an ohmmeter?

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

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.