2 years ago

What is acid mine drainage

1 answer:

7 0

Acid mine drainage is the formation and movement of highly acidic water rich in heavy metals. This acidic water forms through the chemical reaction of surface water (rainwater, snowmelt, pond water) and shallow subsurface water with rocks that contain sulfur-bearing minerals, resulting in sulfuric acid.

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Answer:

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Explanation:

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2 years ago

A certain heat pump produces 200 kW of heating for a 293 K heated zone while only using 75 kW of power and a heat source at 273

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Answer:

COP(heat pump) = 2.66

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Explanation:

Given:

Q(h) = 200 KW

W = 75 KW

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Temperature (T2) = 273 K

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COP(heat pump) = Q(h) / W

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3 years ago

You are using a Jupyter Notebook to explore data in a DataFrame named productDF. You want to write some inline SQL by using the

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2 years ago

Determine whether or not each of the following four transaction execution histories is serializable. If a history is serializabl

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Answer:

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2 years ago