1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KiRa [710]
2 years ago
13

Does the atmosphere contain 21% nitrogen in 78% oxygen

Physics
1 answer:
Alex777 [14]2 years ago
7 0

Answer:

An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases

You might be interested in
The object will feel minimum force of gravity at the
Alika [10]

Answer:

space , small amount of gravity is found in the space ,infact we can say that there is no gravity in the space

4 0
2 years ago
Read 2 more answers
What is the difference between the formation of an ionic bond and formation of a covalent bond?
Vikentia [17]

Answer:

Answer to the question:

Explanation:

Differences between ionic bond and covalent bond:

The ionic bond occurs between two different atoms (metallic and non-metallic), while the covalent bond occurs between two equal atoms (non-metallic).

In the covalent bond there is an electron compartment, while in the ionic bond there is an electron transfer.

Ionic bonds have a high melting and boiling point, while covalent bonds usually have a low point.

5 0
3 years ago
Light rays in a material with index of refrection 1.35 1.35 can undergo total internal reflection when they strike the interface
nekit [7.7K]

Answer:

1.30

Explanation:

To calculate the critical angle we have ti use the formula:

sin\theta_c=\frac{n_2}{n_1}

where theta_c is the critical angle, n1 is the index of refraction of the material where the light is totally reflected, and n2 is the refractive index of the other material.

By taking n_2 and replacing we obtain:

n_2=n_1sin\theta_c=(1.35)sin75.1\°=1.30

hope this helps!!

6 0
3 years ago
Why are the trends for electronegativity and ionization energy similar
Goshia [24]

Answer:

Explanation:

Ionization Energy Trends

Ionization energy is the energy required to remove an electron from a neutral atom in its gaseous phase. Conceptually, ionization energy is the opposite of electronegativity. ... As a result, it is easier for valence shell electrons to ionize, and thus the ionization energy decreases down a group

3 0
3 years ago
What is the distance from the crest to the equilibrium of a wave called? A. amplitude B. period C. frequency D. phase
Goryan [66]

its the first one. A.

8 0
3 years ago
Read 2 more answers
Other questions:
  • An aluminum cylinder weighing 30 N, 6 cm in diameter and 40 cm long, is falling concentrically through a long vertical sleeve of
    12·1 answer
  • In winter why do water tanks start freezing from surface and not from bottom
    10·1 answer
  • C. length and mass
    14·2 answers
  • What is the original source of energy that drives the wind?
    11·1 answer
  • This chart shows characteristics of three different waves all with the same wavelength of 10 m but moving at different frequenci
    12·1 answer
  • Importance of international bureau of weights and measures Inthe world​
    13·1 answer
  • A boy and his skateboard have a combined mass of 65 kg what is the speed of the boy and skateboard if they have a momentum of 27
    15·1 answer
  • Compare and contrast mechanical<br> solidarity and organic solidarity.
    5·1 answer
  • The graph represents the reaction 2H2 + 02 32H20 as it reaches
    6·2 answers
  • a lawn mower is pushed with a force of 50n. if the angle between the handle of the mower and the ground is 30°. why doesn't the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!