What are the characteristics of elastic energy?

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?