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
Marina CMI [18]
2 years ago
6

Provide at least three reasons why friction is needed.

Biology
2 answers:
o-na [289]2 years ago
7 0

Answer:

Friction allows people and objects to move. It provides traction for an object to start moving or change direction. It can also give people a better grip on objects. Finally, friction keeps objects in place when they are set down.

Explanation:

Sample Response

Oduvanchick [21]2 years ago
4 0

Answer:

Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.

Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.

Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.

Explanation:

You might be interested in
A group of scientists designed a clinical study to investigate the effects of cholesterol deficiency in humans. For the duration
viva [34]

Answer:

c. none of the subjects to show signs and symptoms of a cholesterol deficiency during the entire study.

Explanation:

this is because the blood cholesterol is from two sources. Nearly 80% of the cholesterol the body needs  are made by the liver and intestine.certain small amounts are also produced in the adrenal glands and the reproductive organs.The remaining fragment amounts comes from the diets.

Therefore even if these subjects  were fed with diet without cholesterol, it will not have any significant effects on the body cholesterol composition. Therefore no symptoms of its deficiency will be observed.

Generally it biosynthesis is regulated by the amount of cholesterol present in the blood.

3 0
2 years ago
For this assignment you will develop a scientific model on a poster that illustrates the role of photosynthesis and cellular res
9966 [12]

Answer:

but you need to do this at home

Explanation:

8 0
3 years ago
Which is mostly to change with new discoveries and technologies
xeze [42]
The military will change lots like right now there replacing the Humvee with the mrap and the m1 abrams is being replace to there also making liquid armor and robots to oh ye and that armor stuff that has a exo skeleton to help carry the armor and supplies<span />
4 0
3 years ago
.......... is the branch of science that deals with matter, energy, light etc.
Mariulka [41]

Answer:

The correct answer is - Physics

Explanation:

Physics is the branch of science that is an organized study of matter, motion, light, energy, and its behavior in time and space. All these states in the observable universe and their effect is studied in detail in physics.

Physics is one of the basic and fundamental disciplines of science like biology, chemistry. Many other streams or filed of science are based on physics such as chemistry, oceanography, seismology, and astronomy.

Thus, the correct answer is - Physics

3 0
2 years ago
Incident light passes through a polaroid filter and becomes polarized. the best description of the role of the filter is to stat
Ahat [919]
It serves to polarization by transmission through a filter. <span>A Polaroid filter is a device used to polarize light. The device filters out one-half of the vibrations of unpolarized light as the light passes through the filter. Unpolarized light enters the Polaroid filter and the polarized light goes out from the filter. The unpolarized light becomes polarized.</span>
6 0
3 years ago
Other questions:
  • What factor will most likely determine where a wave current project can be located
    11·2 answers
  • During which period did mammals first appear? A. Pleistocene B. Carboniferous C. Cretaceous D. Jurassic
    7·2 answers
  • DNA is ultimately responsible for the proteins that are reproduced in an organism. What is the process (name and describe it) th
    14·2 answers
  • In order for cellular respiration to occur, oxygen and __________ are necessary. glucose atp carbon dioxide water
    8·1 answer
  • Identify the primary role of the lymphatic system? a) Delivery of oxygen to the deep muscle cells b) Produce and store large num
    12·1 answer
  • Which is the BEST explanation for how fluid pressure from freshwater helps plants to stand upright?
    13·1 answer
  • John has two sisters and two brothers. Three of the five children in the family have dark brown hair, one has red hair, and one
    14·1 answer
  • SOLAR ENERGY THAT HAS BEEN ABSORBED BY THE HYDROSPHERE IS TRANSPORTED AROUND THE EARTH BY
    13·1 answer
  • Where’s the largest ecosystem where 2/3 of all species live
    15·2 answers
  • Which of these sources add water to lakes? Select three correct answers.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!