Physics, 07.03.2020 05:00 lowealiyah6755
A hot water heater operating at 240 V supplies to a quantity of water to warm it to the desired temperature of . What is the cost of the energy if the rate is $0.131/kWh?
Answers: 1
Physics, 21.06.2019 17:00, firdausmohammed80
Heat from the sun reaches earth to a. radiation b. convection c. conduction
Answers: 2
Physics, 21.06.2019 23:00, hunterdylan01
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
Physics, 22.06.2019 07:30, luckylady
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
A hot water heater operating at 240 V supplies to a quantity of water to warm it to the desired temp...
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