Physics, 05.10.2019 07:30 heavenwagner
Atypical coal-fired power plant burns 260 metric tons of coal every hour to generate 2.9×106 mj of electricity. 1 metric ton= 1000 kg; 1 metric ton of coal has a volume of 1.5 m3.the heat of combustion is 28 mj/kg. assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy.
suppose the coal is piled up in a 12 m × 8.0 m room. how tall must the pile be to operate the plant for one day?
what is the power plant's thermal efficiency?
Answers: 2
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Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
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Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
Answers: 1
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