Describe why a high-efficiency machine is more desirable than a low-efficiency machine.

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

An object's buoyant force and weight mean the same thing.a. trueb. false

Which branches of natural science include the study of an organism that lived 10 million years ago