3 years ago

If a length and diameter of a pencil are both multiplied by 10, then the volume is multiplied by ?

Physics

1 answer:

Feliz [49]3 years ago

5 0

Answer:

1000

Explanation:

If we model the pencil as a cylinder:

V = π r² h

Or, in terms of diameter:

V = π/4 d² h

If we multiply d and h by 10:

V = π/4 (10 d)² (10 h)

V = 1000 (π/4 d² h)

The volume increases by a factor of 1000.

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The eficiency of a <br> simple machine can never be 100% why?

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If an object has a mass of 1417g and it is moved 47 meters in 90 seconds, how much power was used?

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3 years ago

Conductors have ___<br> resistance.

vazorg [7]

Answer:

little/no

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Conductors are materials, which conduct electricity and/or heat. That means, that their resistance to such energy is so little, that an electric current is able to pass through.

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