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qwelly [4]
3 years ago
11

What are the two factors that affect the frictional force between two surfaces​

Physics
1 answer:
Talja [164]3 years ago
6 0

Static friction and normal force? I would Google to double check if I'm right.

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Particles in a medium through which a sound wave is traveling ​
GuDViN [60]

Answer:

EL SONIDO PUEDE VIAJAR POR CUALQUIER MEDIO MATERIAL, COMO

AIRE, NITRÓGENO, AGUA, TITANIO, ETC...  ASÍ QUE EL

SONIDO VIAJA A TRAVÉS DE MOLÉCULAS.

Explanation:

7 0
3 years ago
The position function of a particle is given by s=2t3−3t2−63t,t⩾0.s=2t3−3t2−63t,t⩾0. where ss is measured in meters and tt in se
Kisachek [45]

Answer:

t=5.72\ s

Explanation:

Given:

the displacement as the function of time:

s=2t^3-3t^2-63t

here time is in seconds and the displacement in meters.

Now we differentiate this eq. of displacement to get the equation of velocity:

v=\frac{d}{dt}(s) \\v=6t^2-6t-63

According to given the velocity is 99\ m.s^{-1} at some time:

99=6t^2-6t-63

6t^2-6t-162=0

t=5.72\ s &  is the only time  for (t>=0) instances when the particle will have a velocity of 99\ m.s^{-1} but in the opposite direction.

8 0
4 years ago
Does a ball rolling on an inclined plane have the same acceleration on the way up as it does on the way down?
larisa86 [58]

Answer:

No, it does not.

Explanation:

According to the Law of Gravitation, something going down has more kinetic energy than something going up because it attracts pressure from around it when going down. When it goes up, it has less gravitational force and inertia also stops the ball from rolling upward. Therefore, without the amount of kinetic energy, it will not have the same amount of acceleration.

8 0
3 years ago
The speed of light in a vacuum is approximately 2.99 × 108 m/s, and the speed of light through a piece of glass is approximately
scoundrel [369]

Answer: Have A Blessed Day!

Explanation:

Thanks for the information mate!

(Also can I have brainliest i'm so close to next rank! Thanks and have a good life!)

3 0
3 years ago
You weigh yourself at the top of a high mountain and the scale reads 728N. If your mass is 75 kg, what is the gravitational stre
jeka94
Use. Weight = (mass)x(accel of gravity). It'll be somewhere around approx roughly about in the neighborhood of 9.706667m/sec^2 .
5 0
3 years ago
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