Table Object
Weight
in
air (N)
Apparent Buoyant Mass of Muss of
weight (N) force (N) benker besker
and (kg)
water
(kg)
Mass of
Weight of
displaced displaced
water (kg)
water (N)
Rock
200 g mass
Styrofoam

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

The movement of electrons between atoms is called an