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sergeinik [125]
3 years ago
8

Hello! Can someone tell me how fans function and work? And what fans do? Ill include an imagine below! Best answer gets brainlie

st

Chemistry
1 answer:
luda_lava [24]3 years ago
3 0

Answer:

How fans work....Instead of sucking in hot air and pushing it down, the fan sucks up cool air and pushes it higher. When the fan forces cool air higher, the cool air forces warm air down. Instead of giving you more access to cool air in your room, the fan gives you more access to the warm air, making you feel nice and cozy.

What fans do....A fan, or a breeze, helps by replacing this hot, humid air with cooler, drier air that allows for more evaporation. Similarly, even without sweat, our body loses heat to the surrounding air simply by convection. ... The breeze from the fan carries that hot air away and perpetuates the process, effectively cooling you off.

Explanation:

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A certain shade of blue has a frequency of 7.08×1014 Hz. What is the energy of exactly one photon of this light? Planck's consta
Anvisha [2.4K]

Answer:

We have the final answer as

4.69 \times  {10}^{ - 19}  \:  \:  J

Explanation:

To find the energy of a photon of this light we use the formula

<h3>E = hf</h3>

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

f = 7.08×10¹⁴ Hz

We have

E = 7.08×10¹⁴ × 6.626 × 10-³⁴

We have the final answer as

4.69 \times  {10}^{ - 19}  \:  \:  J

Hope this helps you

8 0
4 years ago
Compare the solubility of a fatty acid and a fatty acid salt in water. Compare the solubility of a fatty acid and a fatty acid s
anyanavicka [17]

Answer:

The correct option is A. The salt is more soluble in water since it can form stronger ion-dipole interactions not available to the fatty acid.

Explanation:

An ion-dipole interaction occurs when an ionic compound is placed in a polar solvent. As salts are ionic compounds and water is a polar solvent, so the fatty acid salts will be able to form electrostatic ion-dipole interactions with the polar water molecules. These interactions will cause fatty acid salts to dissolve in water.

The fatty acid is not an ionic compound and will not form the ion-dipole interactions with the water molecules. Hence, fatty acids will be less soluble in water.

5 0
3 years ago
Express 0.0004120 in scientific notation.
Montano1993 [528]

Answer:

4.120 × 10^-4

Explanation:

6 0
3 years ago
Hi ndzjfndzlkfmaspodje-sapd
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Answer:

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Explanation:

5 0
3 years ago
What is the difference between a chemical change and a physical change? Give an example of each.
Snowcat [4.5K]
Physical changes are changes that change the physical traits of the substance, without making any change in their internal structure. Chemical changes effect internal structure of the substance and new substance is formed.
Examples of physical changes - breaking glass, evaporating alcohol, shredding paper...
Chemical : burning paper, heating sugar to form caramel, rusting of iron...
3 0
3 years ago
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