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Vladimir [108]
3 years ago
11

What will happen if you rub two different materials together?

Physics
2 answers:
Dafna1 [17]3 years ago
6 0
It will cause heat from friction
Ulleksa [173]3 years ago
6 0
Sometimes, electrons can also be tranferred
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Pls help i have test
ludmilkaskok [199]

Answer:

I think the answer is a no. I guess

Explanation:

don't mind if it is write or wrong

5 0
3 years ago
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The average kinetic energy of particles of matter is called
GenaCL600 [577]

Answer:

The answer is Temperature.

8 0
3 years ago
How can a small human retina detect objects larger than itself?
aliya0001 [1]

Exactly the same way that you can photograph a mountain or a skyscraper
with the itty bitty camera in your smartphone.

Lenses are used to form a tiny image of a gigantic object.


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3 years ago
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2. A wave on a rope has a wavelength of 2.0 m and a frequency of 2.0 Hz. What is the speed of the
TEA [102]

Answer:

4 m/s or 4 meters per second.

Explanation:

In order to calculate the speed of wave, you multiply the wavelength in meters and the frequency of the Wave in Hertz. 2 times 2 equals 4. The wave speed is always in m/s considering that the wavelength is also in meters.

7 0
3 years ago
A runaway railroad car, with mass 30x10^4 kg, coasts across a level track at 2.0 m/s when it collides with a spring loaded bumpe
Natalija [7]

Answer:

0.775 m

Explanation:

As the car collides with the bumper, all the kinetic energy of the car (K) is converted into elastic potential energy of the bumper (U):

U=K\\frac{1}{2}kx^2 = \frac{1}{2}mv^2

where we have

k=2\cdot 10^6 N/m is the spring constant of the bumper

x is the maximum compression of the bumper

m=30\cdot 10^4 kg is the mass of the car

v=2.0 m/s is the speed of the car

Solving for x, we find the maximum compression of the spring:

x=\sqrt{\frac{mv^2}{k}}=\sqrt{\frac{(30\cdot 10^4 kg)(2.0 m/s)^2}{2\cdot 10^6 N/m}}=0.775 m

8 0
3 years ago
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