Describe what causes friction between surfaces

2 answers:

8 0

Some things that causes friction between surfaces is a bike on a rocky road. The action of one surface or object rubbing against another causing friction. Im not really sure if I helped But yeah..

leva [86]2 years ago

8 0

If you look two surfaces at microscopic level, you'll see that they have tiny interlocks. When you bring two surfaces in contact, they are held together strongly because of this interlocks which makes two objects difficult to perform motion.

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How the movement of the earth cause the appeared daily and annual movement of the sun and stars

timurjin [86]

As the Earth rotates on it’s axis we perceive the sky differently depending on where we are. This is known as a day, where the Earths rotation controls the day/night cycle. As Earth orbits the sun our axis wobbles, thus at different times in the year different regions of the Earth can see different areas in the sky.

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7 0

3 years ago

What would happen if the difference between the earth and moon decreased?

Natali5045456 [20]

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2 years ago

Assuming that the uncertainty in mass is negligible, and the uncertainty in velocity is 5 %, what is the uncertainty in the mome

Flura [38]

Answer:

Δp = 0.05 p

Explanation:

The moment is

p = m v

The uncertainty of the moment is

Δp = dp/dm Δm + dp/dv Δv

Like the uncertainty in the mass is zero