When Nascha spent a sunny day at the beach, she noticed that the wind direction changed from morning to night.

What process caused this?

A. land absorbing solar energy

B. land and water absorbing solar energy equally

C. land and water absorbing solar energy unequally

D. different numbers of clouds in the sky in the morning and at night
water absorbing solar energy

The necleus of an atom is made up of what subatomic particles?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

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)