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Lapatulllka [165]
4 years ago
9

Please someone help me lol

Physics
1 answer:
Makovka662 [10]4 years ago
7 0
From Largest to Smallest:

Earth > Biosphere > Biome > Ecosystem > Community > Population > Organism > Organelles 

Hope this helps!

You might be interested in
A 13,500 kg railroad freight car travels on a level track at a speed of 4.5 m/s. It collides and couples with a 25,000 kg second
jok3333 [9.3K]

Answer:

V = 1.578m/s

Explanation:

(Ma x Ua) + (Mb x Ub) = (Ma + Mb)V

(13500 x 4.5) + (25000 x 0) = (13500 + 25000)V

60750 + 0 = (38500)V

60750 = 38500V

V = 60750/38500

V = 1.578m/s

5 0
3 years ago
the loudness of a person's voice depends on the A. force with which air rushes across the vocal folds B. strength of the intrins
blsea [12.9K]

Answer: A. force with which air rushes across the vocal folds

Explanation:

The human voice is produced in the larynx, whose essential part is the glottis. This is how the air coming from the lungs is forced during expiration through the glottis, making its two pairs of vocal folds to vibrate.

It should be noted that this process can be consciously controlled by the person who speaks (or sings), since the variation in the intensity of the sound of the voice depends on the strength of the breath.

5 0
4 years ago
A photovoltaic cell produces electricity when the sun shines. What energy conversion is going here?
Illusion [34]

Answer:

light potential energy is converted into electrical potential energy.

Explanation:

A solar heat absorbs the light that creates pairs of electron - holes, these free charges when moving create a current, the light energy stored in the radiation is converted into electrical energy within the n-p junctions.

In summary, light potential energy is converted into electrical potential energy.

6 0
3 years ago
Will give thanks!!! 38 pts
Sergeeva-Olga [200]
We all know the temperature gets higher as particles bounce off each other, but to slow it they have to be more spread out and moving in a slower motion which the enzymes help this process.  
6 0
4 years ago
Two large parallel metal plates are 1.2 cm apart and have charges of equal magnitude but opposite signs on their facing surfaces
zheka24 [161]

Answer:

E=1100V/m

                                                                     

Explanation:

Given           required           <u>solution</u>

V=6.6v         E=?                   V=Ed ;    V is the potential difference between                                                              

d=D/2=1.2cm/2=0.6cm=0.006m             the   halfway                  

                                                               E is the electric field between the two                                                                              

                                                                       plates.

                                                              d is the distance between the halfway.

So we can use the above formula to calculate the electric field.

    V=Ed   from this E=V/d  substitute the values from the given equation.

E=6.6v/0.006m

E= 1100 v/m

                                                                     

3 0
4 years ago
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