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3 years ago

What Are Some Examples of Friction in everyday life?

Physics

1 answer:

bekas [8.4K]3 years ago

3 0

Explanation:

Everyday Examples of Sliding Friction

Rubbing both hands together to create heat.

A sled sliding across snow or ice.

Skis sliding against snow.

A person sliding down a slide is an example of sliding friction.

A coaster sliding against a table.

A washing machine pushed along a floor.

An iron being pushed across material.

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Answer:

Q1) C, D

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Q3) E

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Explanation:

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3 years ago

What acceleration will result when a 12 N net force applied to a 3 kg object?

geniusboy [140]

Answer:

4m/s

Explanation:

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4 years ago

Read 2 more answers

A film of oil that has an index of refraction of 1.45 rests on an optically flat piece of glass of index of refraction n = 1.60.

blagie [28]

Answer:

442.75862 nm

Explanation:

m = Order

n = Refractive index

$\lambda$ = Wavelength

We have the relation of thickness and wavelength given by

$2nt=m\lambda$

The consecutive spectral line is given by

$2nt=(m+1)\lambda$

So,

$\lambda=\dfrac{2nt}{m}\\\Rightarrow 642=\dfrac{2nt}{m}$

and

$428=\dfrac{2nt}{m+1}$

Dividing the wavelengths we get

$\dfrac{642}{428}=\dfrac{m+1}{m}\\\Rightarrow 1.5 m=m+1\\\Rightarrow m=\frac{1}{0.5}\\\Rightarrow m=2$

$t=\dfrac{m\lambda}{2n}\\\Rightarrow t=\dfrac{2\lambda}{2n}\\\Rightarrow t=\dfrac{642}{1.45}\\\Rightarrow t=442.75862\ nm$

The film thickness of oil is 442.75862 nm

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4 years ago