What do you believe? A. Charge flows through a circuit at very high speed
B. charge becomes used up as it moves through circuit
C. A battery can be a source of charge in a circuit
D. A battery provides potential for changes to flow
E. FPL provides us with millions of electrons to our homes every day
F. When a battery no longer works, it has run out of charge

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.