What is the yearly electricity cost of refrigerator
A refrigerator consumes 280 W of electric power when it is running. The cost of electricity is 10 cents per kWh. What is the yearly electricity cost of this refrigerator, assuming that it runs only half the time?
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During a certain process the specific hea capacity of the system is given by cn=(0.4+0.004(T-273))kj/kg-k. temprature is measured in degress k.
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The cost of electricity is 10 cents per kWh. What is the yearly electricity cost of this refrigerator, assuming that it runs only half the time?
Water is pumped from a lake to a storage tank 40 m above at a rate of 55 L/s, while consuming 22.6 kW of electric power to run the motor. Determine the overall efficiency of the motor-pump unit.
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