Physics, 20.11.2020 21:20 yolomcswaggin20
Sound travels 330 m/s. If a lightning bolt strikes the ground 1,000 m away from you, how long will it take for you to hear it?
Answers: 3
Physics, 21.06.2019 23:00
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 300Β° c, and the exhaust water is at 37Β° 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 05:20
Suppose an objects initial velocity is 10m/s and itβs final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem
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Physics, 22.06.2019 09:00
Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?
Answers: 3
Physics, 22.06.2019 21:00
Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this
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Sound travels 330 m/s. If a lightning bolt strikes the ground 1,000 m away from you, how long will i...
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