Physics, 08.10.2019 03:00 ayoismeisjjjjuan
The hot water needs of a residence are met by a 20-gal hot water heater rated at 6000 btu/h. the tank is initially filled with hot water at 175°f. as the hot water supply is drawn from the tank, it is replaced by cold water at 50°f at a flow rate sufficient to keep the tank full at all times. during this replenishing process in the tank, the water is heated at the water heater’s full rated capacity. water this hot is great for washing clothes or dishes, but it is far t
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Physics, 22.06.2019 10:30
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
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The hot water needs of a residence are met by a 20-gal hot water heater rated at 6000 btu/h. the tan...
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