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Ainat [17]
3 years ago
13

What are the three most abundant gases in the dry atmosphere?

Physics
2 answers:
Anastaziya [24]3 years ago
6 0

Answer:

Nitrogen, Oxygen, Argon.

Explanation:

The three (3) most abundant gases in the dry atmosphere are"

- Nitrogen

- Oxygen

- Argon

These are not the only components of dry air. Dry atmosphere is made up of:

- 78.09% Nitrogen;

- 20.95% Oxygen;

- 0.93% Argon;

- 0.04% Carbon dioxide;

- Other gases

Artemon [7]3 years ago
3 0

Answer:

Nitrogen, Oxygen and Argon.

Explanation:

Composition of Earth's atmosphere is as follows.

Nitrogen = 78%

Oxygen = 20.95%

Argon =  0.98%

and rest is other gases.

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Light traveling through air encounter a second medium which slows the light to 2.7 x 10^8. What is the index of the medium?
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Answer:

1.11

Explanation:

The index of the medium can be calculated using below formula

V= c/ n ............eqn(1)

Where V= velocity of the light is reduced to while traveling through the second medium= 2.7 x 10^8 m/s

n= index of the medium

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Substitute for the values in eqn(1)

2.7 x 10^8 = (3 x 10^8 m/s)/ n

Making " n" subject of the formula, we have

n= (3 x 10^8 )/(2.7 x 10^8)

n= 1.11

Hence, the index of the medium is 1.11

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Therefore, The destination is 224 km from where the plane took off


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