2 years ago

Explain why the statement “The speed of light is 300 million m/s” is not always correct.

1 answer:

5 0

Because the speed of light is determined by the medium that is it in. If light is in a vacuum it goes 300 million meters per second but it is slower in air, and even slower in water because water is more dense than the previous two.

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Of what four things are bones made

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periosteum, compact bone, cancellous, bone marrow

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A manufacturing plant has been found guilty of polluting the nearby river. This is _______ pollution.

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Explanation:

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3 years ago

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Calculate the relative atomic mass of M

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3 years ago

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stira [4]

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"The atomic number and mass number."

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2 years ago

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What is the identity of a 100. g sample of metal that, upon absorbing 4680 J of heat, increases in temperature by 52.0°C?

krok68 [10]

The metal is aluminium

<u>Explanation:</u>

Given:

Heat, q = 4680 J

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sample = ?

We know:

q = mcΔT

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$4680 = 0.1 X c X(52)\\\\c = \frac{4680}{5.2} \\\\c = 900 J/Kg^oC$

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3 years ago