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A current has to flow in the circuit to induce a force on the circuit
The quantity of heat that each pound of refrigerant absorbs from the refrigerated space to produce useful cooling.
By creating a difference in potential. Charge will flow in those conditions.
It can produce radioisotopes used in diagnosis and treatment of medical conditions
Very little. Basically just the metabolic energy due to the time necessary to do it. You usually do not have to change the potental energy of mach mass (lift heavy things) to "produce" homework.
A current has to flow in the circuit to induce a force on the circuit
With big refrigeration units.
The quantity of heat that each pound of refrigerant absorbs from the refrigerated space to produce useful cooling.
Operational environment
This category includes establishments primarily engaged in the manufacture of commercial or industrial refrigeration equipment or domestic, commercial, or industrial air-conditioning units.
The Carnot cycle is an idealized thermodynamic cycle that describes a perfect heat engine. In the Refrigeration system we need cooling effect.so it has to operate in opposite nature to produce the cooling effect. So we run the catnot cycle reversly in the refrigeration system. So we call the Refrigeration cycle called as REVERSED CARNOT CYCLE.
No, it is not necessary.
Market conditions.
The conditions necessary for a body to produce sound are first that their must be a medium for the sound to travel through. Then their must be a disturbance in the medium that pulses through the medium .
I don't believe there are any laws regarding how old produce has to be before it can't be sold as 'fresh' produce. Refrigeration should not have anything to do with that. The saleability of the produce is generally left up to the produce manager.
Viruses do produce cellular proteins that are necessary for viral synthesis.
Trees produce seed which ,given the proper conditions will produce young trees.