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makkiz [27]
3 years ago
8

An observation of the red shift of galaxies suggestst that the universe is

Physics
1 answer:
Rufina [12.5K]3 years ago
3 0
A) Expanding. We know this because it has a similar effect with sound. When a car goes by the pitch gets deeper and deeper. It's because you're receiving less waves. Same thing for light but instead of a pitch it's light, and the farther spread the waves - the redder, the closer and more contracted - the bluer
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Marco is conducting an experiment. He knows the wave that he is working with has a wavelength of 32.4 cm. If he measures the fre
sergeinik [125]
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Answer:

Explanation:

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