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sesenic [268]
3 years ago
15

ADvantage of friction

Physics
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

1. Friction enables us to walk freely.

2. It helps to support ladder against wall.

3. It becomes possible to transfer one form of energy to another.

4. Objects can be piled up without slipping.

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Region that contains the majority of molecules in the atmosphere
Anna71 [15]

Answer:

Trophosphere

Explanation:

The troposphere is the atmospheric layer closest to the planet and is characterized because contains the largest percentage of the mass of the total atmosphere.

On special characteristic is that in this layer the temperature and water vapor content decrease a lot respect to the altitude. Also on this layer the Water vapor is important in order to regulate the air temperature since on this zone we have absorption of the solar energy.

The troposphere contains almost all the water vapor in the atmosphere. And specially on the tropics we have an accumulation of the water vapour.

All weather phenomena occur within the troposphere. Tropos means "change" and Troposphere means "region of mixing".

Above this layer, we have the tropopause, ranges in height from 5 miles near the poles up to 11 miles above the equator. And the height depends of the seasons, with an special characteristic: the is highest height occurs in the summer and lowest height occurs in the winter.

The troposphere contains almost 75% of the mass of the entire atmosphere. The air on this layer is composed by 78% nitrogen, 21% oxygen and 1% is made of argon, water vapor, and carbon dioxide.

So for this reason this is the Region that contains the majority of molecules in the atmosphere.

4 0
3 years ago
A writer on the Internet says he thinks people can stay healthy by eating
ratelena [41]

Answer:

The answer is C

Explanation:

because humans have certain nutritional needs and you have to figure out if potatoes meet those needs

5 0
3 years ago
A car traveling at a speed of 30 m/s encounters an emergency and comes to a complete
Natasha2012 [34]

Answer:

Explanation:

Use the one-dimensional equation

v_f=v_0+at which says that the final velocity of an object is equal to the object's initial velocity plus its acceleration times time. We are looking for time. That means the equation looks like this:

0 = 30 + (-4)t and

-30 = -4t so

t = 7.5 sec

4 0
3 years ago
An engineer is designing a tire for heavy machinery which statement describes the clearest criterion for the solution
Virty [35]

Answer:

I think B tell me if it's right

Explanation:

5 0
3 years ago
Read 2 more answers
What causes a regular reflection
bezimeni [28]
Regular reflection is a reflection such that the the angle of reflection of the light is equal to the angle of incidence and it is on the opposite of the normal to the point of incidence. In a regular reflection the incident ray, the reflected ray and the normal to the reflection all lie in the same plane. Regular reflection happens if the reflection surface is very smooth.
7 0
3 years ago
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