Engineering, 05.03.2021 03:10 Hellokittyjam35

What 2 factors determine how much electricity is produced at a hydropower plant?

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Engineering, 03.07.2019 15:10, brooklyn674

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

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Engineering, 04.07.2019 18:10, jadeochoa4466

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

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Engineering, 04.07.2019 18:10, jojoangelique13

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

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Engineering, 04.07.2019 19:20, rosemary909

In the winter, in order to keep the classroom steadily at 68 f before 10 pm, heating with an average rate of 42,000 btu/hr is provided. assume the outdoor temperature maintains at 32°f, determine the electrical power (kw) required to (a) operate a reversible heat pump (b) operate a real heat pump with a cop (7) of 4.5 and (c) operate an electrical-resistance heater.