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
kifflom [539]
3 years ago
13

Why pressure above the surface is greater than in the air​

Physics
1 answer:
nexus9112 [7]3 years ago
7 0

Answer:

At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. ... Since most of the atmosphere's molecules are held close to the earth's surface by the force of gravity, air pressure decreases rapidly at first, then more slowly at higher levels.

Explanation:

You might be interested in
Which chart correctly describes the properties of electric and magnetic fields?
Serjik [45]
<span>Both electric and magnetic fields exert body forces, meaning they act from a distance. The like charges and poles in both repel; positive charge repels positive and the north pole repels the north pole. For both, the opposite poles/charges attract. Finally, only magnetic fields have poles, and there are two poles, namely the south and north, so they are dipolar. The diagram that represents all of this information correctly is the third.</span>
7 0
3 years ago
What are the two types of force
Evgen [1.6K]

Answer:

Forces can be divided into primarily into two types of forces:

  • Contact Forces.
  • Non-contact Forces.

Explanation:

5 0
3 years ago
1. This process is when nitrates are<br> converted into nitrogen gas
Karo-lina-s [1.5K]
The process is denitrification
3 0
3 years ago
Why does a pencil look bent when it is placed in a glass of water?
Nonamiya [84]

Answer:

This is due to bending of light ray passing through the medium.

Explanation:

This can be explained using the concept of refraction.

Refraction can be defined as the bending of light ray as it travels from one medium to another (it can be from the less dense to denser medium or denser to less dense medium)

For that of pencil in water, light ray travels from less dense medium(surrounding air) to denser medium(water). This causes the pencil to bend away from the normal rather than towards the normal (angle of refraction being greater than angle of incidence) and hence the reason for the bending.

NB: Normal line is perpendicular to the plane between the medium.

7 0
3 years ago
Explain briefly how moving electric charges at an atomic level produce magnetically polarized domains in a sample of iron, and h
SVETLANKA909090 [29]
1.Iron atoms tend to form regions, clusters. These are what become magnetized and then affected by magnetic fields
Answer 2
.When two magnets are brought near each other, like poles repel; opposite poles attract.
2) When a magnet is brought near a piece of iron, the iron also gets attracted to the magnet, and it acquires the same ability to attract other pieces of iron.
6 0
3 years ago
Other questions:
  • What kind of habitat do we live in
    6·1 answer
  • While the negatively charged rod is near the disk without touching it, a hand briefly touches the end of the post. Then the nega
    6·1 answer
  • When a weather map shows a wind symbol at 270 it indicates that the wind is coming from the?
    7·1 answer
  • Calculate the acceleration of a mobile that at 4s is 32m from the origin, knowing that its initial speed is 10m / s.
    13·2 answers
  • A small ball with mass 1.20 kg is mounted on one end of a rod 0.860 m long and of negligible mass. The system rotates in a horiz
    9·1 answer
  • A skier leaves the end of a horizontal ski jump at 23.0 m/s and falls through a vertical distance of 3.45 m before landing.
    6·1 answer
  • When we dissolve a substance in water, a -------- is formed
    6·2 answers
  • An object is NOT accelerating. Is its motion changing?<br> Yes or No?
    13·2 answers
  • How much time does it take the cheetah to travel 500 meters, if its average speed is 70 meters per second?
    13·1 answer
  • The Newton's Cradle toy will slow down and stop because some of the energy is being transformed into s________ energy and also t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!