Physics, 18.03.2021 03:10 hdjsjshshsh
If the greenhouse effect is natural, then why is today's climate change a bad thing?
A.)A small increase in greenhouse gas concentration can have a large effect of increased warming.
B.)Humans have altered a natural process and exaggerated changes that might normally occur over millions of years.
C.)Once released into the atmosphere, greenhouse gases remain potent for many years, making it difficult to reverse the process.
D.)Abrupt changes to the climate system may have unintended outcomes that may pose challenges for societies, like more extreme weather, spread of diseases, a decline in marine life, or an alteration of ocean circulation patterns.
E.)All of these
Answers: 1
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Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
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Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
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If the greenhouse effect is natural, then why is today's climate change a bad thing?
A.)A small inc...
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