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LuckyWell [14K]
4 years ago
15

What are three reasons that friction is needed?

Physics
1 answer:
tresset_1 [31]4 years ago
4 0
It is used to reduce speed, without friction, nothing would roll or move on the ground, and lastly, it allows things to endure during bombardment. Hope this helps!

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Laskar, J.: 1990, The chaotic motion of the solar system. A numerical estimate of the size of the chaotic zones, Icarus, 88, 266
balandron [24]

The chaotic nature of the Solar System excluding Pluto was established by the numerical computation of the maximum Lyapunov exponent of its secular system over 200 myr.

<h3>What is chaotic motion of the solar system ?</h3>

There has been an increase in awareness of chaotic dynamics in the solar system over the past 20 years. The orbits of tiny objects in the solar system, such as asteroids, comets, and interplanetary dust, are now known to be chaotic and to experience significant variations across geological time periods.

  • a completely unpredictable orbit, or one where significant changes in the orbit can result from even small changes in the position and/or velocity of the orbiting entity.

Learn more about Chaotic motion here:

brainly.com/question/13717859

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7 0
1 year ago
As a skydiver gains speed in falling through the air, air resistance _______.
Korolek [52]
By writing kinematic equations you can find the answer.
 The acceleration is:
 a = g
 The speed is:
 v = a * t
 v = g * t
 Note that as time passes, speed increases.
 When increasing the speed, the resistance of the air is greater.
 answer:
 air resistance increases
3 0
3 years ago
What happens if a bar magnet is broken in half?
laiz [17]
<span>C. Each half becomes a new bar magnet with two magnetic poles.

A magnet is still a magnet, no matter how many pieces it is in.</span>
4 0
3 years ago
Read 2 more answers
Find the de Broglie wavelength λ for an electron moving at a speed of 1.00 x 10^6m/s. (Note that this speed is low enough that t
Lyrx [107]

Answer:

De broglie wavelength will be 0.727 nm

Explanation:

We have given speed of the electron v=10^6m/sec

Mass of the electron m=9.11\times 10^{-31}kg

Plank's constant h=6.624\times 10^{-34}Js

We have to find the De Broglie wavelength

De Broglie wavelength is given by \lambda =\frac{h}{mv}=\frac{6.624\times 10^{-34}}{9.11\times 10^{-31}\times 10^6}=0.727\times 10^{-9}m

So wavelength will be 0.727 nm

7 0
3 years ago
What is sound board in physics
neonofarm [45]

Answer:

is the surface of a string instrument that the strings vibrate against, usually via some sort of bridge. Pianos, guitars, banjos, and many other stringed instruments incorporate soundboards. ... When the [guitar] top (or soundboard) vibrates, it generates sound waves, much like a loudspeaker.

3 0
3 years ago
Read 2 more answers
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