If a Galaxy Is Moving Away from Us at 1

question 16

Multiple Choice

If a galaxy is moving away from us at 1.0% of the speed of light, use Hubble's law to estimate how far away it is from us if the Hubble constant is 22 km/s per million light-years. (c = 3.00 × 10⁸ m/s, 1 ly = 9.461 × 10¹⁵ m, 1 y = 3.156 × 10⁷ s)

• A) 14 ly
• B) 140 ly
• C) 140 thousand ly
• D) 140 million ly
• E) 140 billion ly

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Definitions:

Consideration

Something of value that is exchanged between parties in a contract, which is necessary for the agreement to be legally binding.

Performance

The action or process of carrying out or accomplishing an action, task, or function.

Oral Contract

An agreement made through spoken words rather than written, which can be legally binding under certain conditions.

Another's Debt

The obligation to repay money borrowed by another person or entity, often due to a legal or financial agreement.