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azamat
2 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]2 years ago
8 0

Answer:

making practical decisions about using natural resources and energy

Explanation:

kirill115 [55]2 years ago
5 0

Answer:

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

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a vertical cylindrical container is being cooled in ambient air at 25 °C with no air circulation. if the initial temperature of
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Answer:

the surface heat-transfer coefficient due to natural convection during the initial cooling period.  = 4.93 w/m²k

Explanation:

check attachement for answer explanation

7 0
3 years ago
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How are project deliverables determined?
Greeley [361]

Answer:

The essence including its problem is listed throughout the clarification section following.

Explanation:

Projects build deliverable that seem to be the products of the venture or indeed the implementation of the project. This ensures that perhaps the agile methodology may be as broad as either the goal of the study itself as well as the coverage that would be part of a much larger venture.

For every other production to have been marked as "deliverable" within the same project, this should satisfy a few eligibility requirements:

  • It should be within the development of the work.
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So that the above seems to be the right answer.

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3 years ago
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Its been days wsgggggg
Nataly [62]

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2 years ago
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An example of the split-off point in oil, gasoline, and kerosene production is that point where crude oil is
eimsori [14]

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8 0
3 years ago
A heat engine that rejects waste heat to a sink at 520 R has a thermal efficiency of 35 percent and a second- law efficiency of
xeze [42]

Answer:

The source temperature is 1248 R.

Explanation:

Second law efficiency of the engine is the ratio of actual efficiency to the maximum possible efficiency that is reversible efficiency.

Given:  

Temperature of the heat sink is 520 R.

Second law efficiency is 60%.

Actual thermal efficiency is 35%.

Calculation:  

Step1

Reversible efficiency is calculated as follows:

\eta_{II}=\frac{\eta_{a}}{\eta_{rev}}

0.6=\frac{0.35}{\eta_{rev}}

\eta_{rev}=0.5834

Step2

Source temperature is calculated as follows:

\eta_{rev}=1-\frac{T_{L}}{T}

\eta_{rev}=1-\frac{520}{T}

0.5834=1-\frac{520}{T}

T = 1248 R.

The heat engine is shown below:

Thus, the source temperature is 1248 R.

6 0
3 years ago
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