During each cycle of its operation, an air conditioner transfers 930 kJ of heat from a room and outputs 1730 kJ of heat to the outdoors. what mechanical work is involved per cycle? A. 2660 kJ of work performed by the air conditioner
B. 2660 kJ of work performed on the air conditioner
C. 800 kJ of work performed by the air conditioner
D. 800 kJ of work performed on the air conditioner​

Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: