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miskamm [114]
2 years ago
6

The sky is blue because: Select one: a. the index of refraction for air is slightly larger for blue than for red b. atomic hydro

gen is blue c. air molecules tend to polarize light along a horizontal axis d. oxygen and nitrogen molecules are small compared to the wavelengths of visible light e. oxygen molecules have a lower energy ground state than nitrogen molecules
Physics
1 answer:
lapo4ka [179]2 years ago
5 0

Answer:

a. the index of refraction for air is slightly larger for blue than for red

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A 1.0 kg ball falls from rest a distance of 19.6 m.
Nimfa-mama [501]

Answer:

192.08J

19.6m/s

Explanation:

Since there will be no potential energy when the ball is on the ground, the change in potential energy is equal to the potential energy at the start when the ball is 19.6m above the ground.

PE=mgh

=(1)(9.8)(19.6)

=192.08J

v²=u²+2as, where v is the final velocity, u is initial velocity, a is acceleration and s is distance. Initial velocity is 0 since it starts at rest.

v²=u²+2as

v²=0²+2(9.8)(19.6)

v=√384.16

=19.6m/s

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2 years ago
Why must lslamic believers travel to Mecca once during their lives?
SSSSS [86.1K]

Answer: The Islamic believers traveled to Mecca once during their lives because they would perform Hajj ( this is piligrimage) and it is the main part of the islam

Explanation:

Hajj is very important to islam people so in order to do this they had to go to Mecca. Hajj is rituals and rites that need to be fulfilled. Its not the only pillar for islam but it is one out of five.

4 0
3 years ago
Which of the following is not dimensionally correct?<br> E=mc2 B. vf=vi+at<br> S=vt2 D. S=1/2 at2
Elodia [21]

Answer:

s=vt2 just simplify all into metric units first

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2 years ago
The hereditary material is known as
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Genetic material<span>, also </span>known<span> as deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA)</span>
5 0
2 years ago
In 450 BCE, Greek philosopher Democritus first thought of the existence of tiny particles that compose everything around us. He
Masja [62]

B. The meaning of 'atomos' according to Democritus in 450 BCE is indivisible.

<h3>The building block of every matter</h3>

A Greek philosopher  known as Democritus first thought of the existence of tiny particles that compose everything around us.

Democritus of Abdera, named the building blocks of matter atomos, meaning literally “indivisible.

Thus, the meaning of 'atomos' according to Democritus in 450 BCE is indivisible.

Learn more about atoms here: brainly.com/question/6258301

#SPJ1

5 0
1 year ago
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