Social science is a branch of science that deals with the nature of A. human society
B. the physical world
C. animal societies
D. the medical field
Please select the best answer from the choices provided
А
B

If a simple machine reduces the strength of a force, what must be increased?

Explain what happens at the saturation point when adding salt to water at room temperature.

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)