5. Thermal pollution. A river with a water temperature Tl=20 oC is to be used as the low temperature reservoir of a large power plant, with a steam temperature of Th=500 oC. If ecological considerations limit the amount of heat that can be dumped into the river to 1500 MW, what is the largest electrical output that the plan can deliver? If improvements in hot-steam technology would permit raising Th by 100 oC, what effect would this have on the plant capacity?
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Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 22.06.2019 19:00
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Physics, 23.06.2019 01:00
When solid surfaces slide over each other the kind of friction that occurs is called friction
Answers: 2
5. Thermal pollution. A river with a water temperature Tl=20 oC is to be used as the low temperature...
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