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DedPeter [7]
3 years ago
14

Which of the following best describes a plane?

Physics
1 answer:
zloy xaker [14]3 years ago
8 0

On that list of choices, 'C' is the only "example" of a plane.
None of the choices "describes" a plane.

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Explanation:

We can calculate an estimate for the age of the Universe from Hubble's Law. Let's suppose the distance between two galaxies is D and the apparent velocity with which they are separating from each other is v. At some point, the galaxies were touching, and we can consider that time the moment of the Big Bang.

Thus, the time it has taken for the galaxies to reach their current separations is:

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H_0=(30\ km/s/Mly) \times (1 Mly/ 9.461 \times 10^{18} km) = 3.17\times 10^{-18}\ 1/s

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