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azamat
3 years ago
15

Which of the following describes the most direct and attainable way to reduce pollution in the environment?

Engineering
2 answers:
vampirchik [111]3 years ago
8 0

Answer:

making practical decisions about using natural resources and energy

Explanation:

kirill115 [55]3 years ago
5 0

Answer:

i think its A. increasing research to find alternative natural resources for the future

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In digital communication technologies, what is an internal network also known as?
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Hopefully this helped.
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Many farms and ranches use electric fences to keep animals from getting into or out of specific pastures. When switched on, an e
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Aluminum

Explanation:

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3 years ago
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Drag each tile to the correct box.
Trava [24]

Answer:

Bluray

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6 0
3 years ago
If a heat engine has an efficiency of 30% and its power output is 600 W, what is the rate of heat input from the combustion phas
jarptica [38.1K]

Answer:

The heat input from the combustion phase is 2000 watts.

Explanation:

The energy efficiency of the heat engine (\eta), no unit, is defined by this formula:

\eta = \frac{\dot W}{\dot Q} (1)

Where:

\dot Q - Heat input, in watts.

\dot W - Power output, in watts.

If we know that \dot W = 600\,W and \eta = 0.3, then the heat input from the combustion phase is:

\eta = \frac{\dot W}{\dot Q}

\dot Q = \frac{\dot W}{\eta}

\dot Q = \frac{600\,W}{0.3}

\dot Q = 2000\,W

The heat input from the combustion phase is 2000 watts.

8 0
3 years ago
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