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bonufazy [111]
4 years ago
5

On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will the

room be warmer or cooler than the neighboring rooms? Why? Assume all the doors and windows are kept closed.
Engineering
1 answer:
Virty [35]4 years ago
5 0

Answer:

When the student returns, it will be hotter

Explanation:

We know that the room is closed, so no air is coming in from outside and no air goes outside as the windows and doors are closed. We know the fan is moving and the fan does not cool the air, it only moves the air. Therefore, this process creates kinetic energy that is converted into heat energy (internal) so that room begins to get warmer.

And we know by the the law of Conservation of Energy, there is no loss in energy

So, the room just gets hotter.

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Essence of check line in chain surveying
zimovet [89]

Answer:

Following are the description on the chain surveying:

Explanation:

The checking which is also called a beginning of the test is indeed a line uniting the summit of a triangular with other fixed locations from both sides of a triangle. To verify the overall precision of a framework, the check-line is measured. When assessed mostly on the ground, every length of an examination line should match its height. It also is called a proof line that connects the top of the triangle with any fixed location in the contrary direction. It is utilized for verifying the preciseness of a work.

6 0
3 years ago
What is the meaning of the measurement met?
san4es73 [151]

Answer: MET(Metabolic equivalent of task) is the measurement technique that is based on the ratio of the energy that is being spend by an individual by any physical activity to the energy spent by individual sitting in quiet position.

This ration has some reference in which is ratio is measured.The energy being measured in the activity time of the person considers his/her relative mass at that time. This relative mass is compared in accordance with the  oxygen amount of 3.5 ml per kg/min that is almost equal to energy of the person in the sitting position.

6 0
3 years ago
A cylindrical space capsule lands in the ocean. This capsule is 2.44 m long, 1.10 m in diameter, and weighted at one end so that
sukhopar [10]

Answer:

The correct answer is "15456.8 N".

Explanation:

According to the question,

The inside volume will be:

= 3.14\times (\frac{1.1}{2} )^2\times (2.44-0.82)

= 3.14\times \frac{1.21}{4}\times 1.62

= 3.14\times 03025\times 1.62

= 1.538757 \ m^3

hence,

The buoyant force will be:

= V\times Pw\times g

= 1.538757\times 1025\times 9.8

= 15456.8 \ N

7 0
3 years ago
Construct an NFAA foe<br>regular expression<br>labi.abb.cob)​
chubhunter [2.5K]

Explanation:

Construct an NFA:

Step 1 - Formulate an NFA with Void transitions from its specified regular expression.

Step 2 - Drop and transform the Null Transformation from of the NFA into an analogous DFA.

NDFA corresponding to

RE − 1 (0 + 1)* 0.

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3 years ago
Que os vizinhos diziam sempre aq lenhador? Responda com elementos do texto.​
Alecsey [184]

Answer:

shsisdnd ajwdhdjeo sisksdne suspended wowodndjd

4 0
3 years ago
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