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prisoha [69]
2 years ago
5

Answer ASAP and only if you know its correct

Physics
2 answers:
vekshin12 years ago
7 0

the doppler effect shows stars with red shifted light

Pachacha [2.7K]2 years ago
6 0

Answer:

scientists see emission spectra 'shifted' towards the red end of the electromagnetic spectrum—

Explanation:

hoped this helped

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If the radius of an object in circular motion is doubled, what change will occur in the centripetal force?
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Recall that centripetal force (F_c) is defined as: F_c=m\,* \frac{v^2}{r} where "v" is the tangential velocity of the object in circular motion, "r" is the radius of rotation and "m" is the object's mass.

So if we start with such formula with a given mass, radius, and tangential velocity, and then we move to a situation where everything stays the same except for the radius which doubles, then the new centripetal force (F'_c) will be given by: F'_c=m\,* \frac{v^2}{2r}

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which is expressed by option "c" of the provided list.

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