2 years ago

___________________is the rate that an object moves in a certain direction.

Physics

1 answer:

AleksandrR [38]2 years ago

3 0

Answer:

Velocity

Explanation:

<u>Velocity</u> is the rate that an object moves in certain direction.

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Explain why greenhouse gases in the atmosphere cause an increase in temperature?

harkovskaia [24]

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3 years ago

Calculate the index of refraction for a medium in which the speed of light is 2.1x 108 m/s. The speed of light in vacuum is 3x10

strojnjashka [21]

Answer:

n = 1.42

Explanation:

The refractive index for a medium is given by the ratio of the speed of light in vacuum to the speed of light in a medium.

$n=\dfrac{c}{v}\\\\n=\dfrac{3\times 10^8}{2.1\times 10^8}\\\\n = 1.42$