When is the instantaneous acceleration of the particle equal to 0? a. t=0 b. t=4 c. t=5 d. t=2

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.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

How much work would it take to move a coulomb charge across a 4 volt potential difference?