Antwon made a table to study some simple machines. which best describes how to correct the error in the table? a remove "can also be used to lift objects" from the description of a screw. b add "looks like two inclined planes placed back-to-back" to the description of a wheel and axle. b move "reduces friction when object is being moved" to the description of a pulley. d change "decreases distance" to "increases distance" in the description of an inclined plane.

What properties of a moving object are used in determining the object's energy of motion

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)

How many atoms of nitrogen are in the chemical formula ni(w on