3 years ago

Which are consider to be simple machines? Select all that apply.

Physics

1 answer:

Sedbober [7]3 years ago

7 0

Answer:

Explanation:

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When light changes the medium it travels through it also changes speed. The speed in medium is given by formula:
$v_{medium} = \frac{c}{ n_{medium} }$

Rearranging formual gives:
$n_{medium} = \frac{c}{ v_{medium} }$

From this formula we can make conclusion that index of refraction is inversely proportional to speed of light in medium. This means that greater speed gives smaller index of refraction.

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4 years ago

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4 years ago

Which scientist was the first to use the telescope in astronomy

Mashutka [201]

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although Galileo was not the scientist who invented the telescope, he was the first to use it to observe celestial objects. he used the telescope in 1609. his discovery included more accurate information about the moon, the sun and some of the planets.

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3 years ago

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sukhopar [10]

Answer:

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