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user100 [1]
4 years ago
14

When someone leaves an outside door open on a cold, still day, it is often said that the person is letting in cold air. If so, h

ow
Physics
1 answer:
Vikentia [17]4 years ago
8 0

Answer:

Diffusion

Explanation:

This process can be referred to as diffusion. The cold air moves from a region of high concentration (outside) to a region of low concentration (inside). The movement of these cold air is what is referred to as "letting in cold air".

NOTE: Diffusion is the process in which substances move from a region of high concentration to a region of low concentration. Just like when an insecticide is sprayed inside a closed room and then the room is later opened so as to allow the the sprayed insecticide leave the room.

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what is the net force on this object? A. 22 newtons B. 8 newtons C. 0 newtons D. 36 newtons (there's a picture)
Elodia [21]
Watch in the diagram above that a downward vector will provide a partial or full cancellation of an upward vector. 

F_{Net} =  F_{Norm} -  F_{grav}
F_{Net} = 20 - 20
F_{Net} = 0N


And a leftward vector will provide a partial or full cancellation of a rightward vector.

In this case, as the meanings of the vectors are opposite, one of the forces receives the negative signal and thus a piece of the other vector is drawn, as shown in the figure. And to know the module of the resultant force, if it subtracts the modules of the forces.

F_{Net} = F_{app} - F_{frict}
F_{Net} = 22 - 14
\boxed{\boxed{F_{Net} = 8N}}

Answer:

(in order to have a net force of 8 N, right) 

B. 8 Newtons



7 0
4 years ago
I’m think 3 or 1.. am I right?
AveGali [126]

Answer:

C-3 I beleive it is three!!!!

Explanation:

Hope this helps!

Have a grreat day!

-Hailey

5 0
3 years ago
Read 2 more answers
Arrange the values according to magnitude
Talja [164]

Answer:

59000

1.8\times 10^5

4.3\times 10^{-2}

9.0\times 10^{-6}

8.4\times 10^{-6}

Explanation:

The given numbers are

1.8\times 10^5=18000

4.3\times 10^{-2}=0.043

8.4\times 10^{-6}=0.0000084


9.0\times 10^{-6}=0.000009

59000

The arrangement of the numbers from largest to smallest is

59000

1.8\times 10^5

4.3\times 10^{-2}

9.0\times 10^{-6}

8.4\times 10^{-6}.

7 0
3 years ago
Assume that Michael's teacher has a rule that if a student talks out-of-turn three times in one day, that student must stay in f
olga_2 [115]
D sorry if I get y’all wrong
4 0
3 years ago
The other name for 'net force' is 'unbalanced force'. What is the name of the force that could be applied to an object that woul
vivado [14]

Answer:

Since these two forces are of equal magnitude and in opposite directions, they balance each other. The book is said to be at equilibrium. There is no unbalanced force acting upon the book and thus the book maintains its state of motion. When all the forces acting upon an object balance each other, the object will be at equilibrium; it will not accelerate.

Explanation:

5 0
3 years ago
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