The amount of potential energy possessed by an elevated object is equal to

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

If steel is more dense that lake water, why can a boat float

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island