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Semenov [28]
3 years ago
12

Why does a person feel cooler under a rotating fan?

Physics
1 answer:
sladkih [1.3K]3 years ago
4 0

What a fan does is create a wind chill effect. ... By blowing air around, the fan makes it easier for the air to evaporate sweat from your skin, which is how you eliminate body heat. The more evaporation, the cooler you feel.

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A scientist testing the effects of a new medicine that will treat anemia, a blood disorder, uses a sample size of 15 patients fo
irakobra [83]
All 15 patients will most likely have the same test results reguarding the ages would make the results vary

if this isnt a statement listed please Comment/Respond telling me the statements and I will answer to the best of my ability

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5 0
3 years ago
jake drags a sled of mass 10 kg across the snow. the sled is attached to a rope that he pulls with a force of 30 n at an angle o
bagirrra123 [75]

Answer:

The normal force is 85,42 N

Explanation:

There is no friction force, therefore there is no relationship between the normal force and the friction.

We can find the normal force using a free body diagram and check the forces that are acting on the sled. The total forces are equal to 0 because there is no movement in the y-axis. The movement exists only on the x-axis.

7 0
4 years ago
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Which of the following is a correct equation for total energy?
sweet [91]

Answer:

Total energy=Kinetic energy+Potential energy

Explanation:

the total energy will be obtained from the energy of an object in motion and the energy stored in the object

8 0
3 years ago
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When an experiment is replicated, how should the results of the two experiments compare?
Lelu [443]
The results of the experiments should be similar.
7 0
3 years ago
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Why does 100% relative humidity in the winter feel nothing like 100% relative humidity in the summer?
adell [148]

The 100% relative humidity in the winter feel nothing like 100% in summer because it depends on "the saturation of the temperature".

<u>Explanation:</u>

Temperature really makes a big difference. Even once warm, a cold winter air produces much less humidity than summer heat. One cubic unit of air needs 0.001 ounces of water to saturate it, to elevate its ratio to one hundred per cent.

Nevertheless, it takes 0.022 ounces of water to saturate the one cubic unit of air once the temperature is eighty, which is twenty-two times that amount of water. Air with a humidity of one hundred percent at eighty degrees holds twenty-two times as much water as air at zero with humidity at one hundred percent.

4 0
3 years ago
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