2. In the circuit of figure 2.33, show the
Р
B.
X7
+
+
V
-
N.
A
Figure 2.33.
connections in order to measure the poten-
tial difference VBA with a voltmeter.
Figure 2.33.

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)

What are the necessary conditions for fusion?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?