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
Oksana_A [137]
3 years ago
14

How do airplanes stay in the air?

Biology
2 answers:
victus00 [196]3 years ago
6 0

Answer:A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky. ... The wings force the air downward and that pushes the plane upward.

bija089 [108]3 years ago
3 0

Explanation:

A plane's engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane's weight and holds it in the sky. ... The wings force the air downward and that pushes the plane upward

You might be interested in
Which term describes the number of waves passing a point during a<br> certain period of time?
serg [7]

Frequency is the term that describes the number of waves passing a point during a certain period of time, frequency is also measured in Hz (hertz).

7 0
3 years ago
Describe the geoscience processes that help to change Earth’s surfaces over time.
Kisachek [45]
Geoscience processes such as weathering, erosion, and deposition are constantly changing Earth's surface. The planet's systems interact to shape Earth's history and future. By mapping the natural events in an area and understanding the geological forces involved, future events can be predicted and forecasted.
7 0
3 years ago
If a cells nucleus has 55% adenine bases, how many cytosine bases will be present?
Nostrana [21]

If a cell’s nucleus has 55% adenine bases it also has 55% thymine bases, so the percentage of cytosine bases is 45% as same as  guanine bases.

This is known as Chargaff's rule which states that DNA should have a 1:1 ratio of pyrimidine and purine bases (the amount of guanine should be equal to cytosine and the same thing with adenine and thymine).

DNA molecule globally has percentage base pair equality: %A = %T and %G = %C.

8 0
3 years ago
What does the left hemisphere of the brain do?​
aniked [119]

Answer:

The left side of the brain is responsible for controlling the right side of the body. It also performs tasks that have to do with logic, such as in science and mathematics.

Explanation:

Basically controls the opposite side of your brain and used for brain intensive tasks.

6 0
3 years ago
Kelvin's cow is showing signs of poor health. The cow is staying away from the herd and not alert in its environment. The veteri
Roman55 [17]

Answer:

D. circulatory system

7 0
3 years ago
Read 2 more answers
Other questions:
  • Is the elliptical shape of the earths orbit changes all the time
    6·1 answer
  • Increase blood pressure <br> Increase blood volume <br> Decrease blood volume
    13·1 answer
  • What transports oxygen<br> depleted blood to the<br> lungs to exchange CO2<br> for O2?
    11·1 answer
  • Why is reproductive isolation required for speciation to occur?
    9·2 answers
  • Which of the following statements best describes what happens during the S phase of the cell cycle?
    7·1 answer
  • 1. Imagine you have 24 hours to change into any
    13·1 answer
  • What is the purpose of a conclusion?
    8·1 answer
  • In pea plants,the allele for the tallness is dominant.what are the possible genotypes of a tall pea plant
    7·1 answer
  • What allows humans to see color when formed correctly?
    6·1 answer
  • What is happening to the [OH-] when the solution turns from pink to violet?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!