Speed is the ratio of the distance an object moves to a. the amount of time needed to travel the distance b. the direction the object moves c. the displacement of the object d. the motion of the object

Which changes of state do the labels represent? a: b: c:

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

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)