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8_murik_8 [283]
3 years ago
9

Please help me it’s for science I only have a few minutes

Engineering
2 answers:
seraphim [82]3 years ago
8 0

Answer:

I'm taking a guess for ya I shall say Metal or and Minerals

Explanation:

Good luck

7nadin3 [17]3 years ago
3 0

Answer:

Rocks

Explanation:

I am not sure tho bc they are made out of coal and I think coal is a kind of rock

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Bad White [126]

Answer:

what

Explanation:

is this an exam or an test or what is it

3 0
3 years ago
Which type of inappropriate practice most likely occurred if a researcher takes credit for someone else’s idea and does not ackn
Rashid [163]

Answer: the answer is plagiarism.

Explanation: Plagiarism is the act of taking credit from someone else's works or ideas, without acknowledging the author. <u>Conflict of interest</u> occurs when an employee has <u>interests that are at odds to each other</u>, which isn't shown at the excerpt given in the exercise. <u>Fabrication</u> is the <u>creation of intellectual property</u>, also not shown in the exercise, and <u>falsification</u> is the <u>creation of a scientific hypothesis</u> that <u>cannot be verified</u> by lack of practical evidence, which is not the case described as well.

7 0
3 years ago
Explain three (3) modes of heat transfer in air conditioning system.
LenKa [72]

Answer:

1. Conduction

2. Convection

3. Radiation

Explanation:

The 3 modes of heat transfer i an air conditioning system:

1. Conduction:

The transfer of heat by conduction  takes place in solid and is when the conduction takes place as a result of direct contact in between the interacting material which transfer the heat energy from particle to particle thus conducting the heat through out the system.

2. Convection:

The other mode for the transfer of heat which takes place especially in fluids - gases and liquids is through the technique of convection in which the transfer of heat takes place by the circular motion of the atoms and molecules of the fluid which carries the heat energy and results in the distribution of the heated fluid in the entire system thus transferring all the heat energy in the entire system.

3. Radiation:

The third mode of heat transfer in the air conditioning system is through radiation. This method transfers the heat by making use of the electro-magnetic radiation in the infra red spectrum where the waves of the spectrum transfers the heat energy with the help of a medium or without any medium at all.

Thus making the radiation method of heat transfer as the only method out of the three methods which does not require the material medium for the transfer of heat energy.

4 0
3 years ago
Define extensive and intensive properties of thermodynamic system.
Flura [38]

Answer:

An intense property is a physical attribute of a system that is independent of the size of the system or the quantity of material it contains. An extensive property of a system, on the other hand, is dependent on the size of the system or the amount of material in it.

Explanation:

7 0
3 years ago
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How engineer can find problems and solutions <br><br><br> Give example
Mademuasel [1]

Answer:

They find problems and solutions by working together

Explanation:

4 0
3 years ago
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