What would a velocity of a rock dropped from a cliff be after falling for 6 seconds? A. 58.8m/s
B. 1.6m/s
C. 12m/s
D. 30m/s

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.

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.