What Keeps the Moon Moving, I

question 63

Multiple Choice

What keeps the moon moving, i.e., why doesn't the moon slow down and stop?

• A) Nuclear processes operating in the central core of the moon.
• B) It is the natural motion of every object to keep moving by itself.
• C) Earth's gravity keeps it moving.
• D) The sun's gravity keeps it moving.
• E) It actually is slowing down, and will come to rest in a few thousand more years.

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Definitions:

Competitive Price-Taker

A firm or individual that has no influence over the market price and must accept the prevailing market price for its product or input.

Profit

The financial gain made in a transaction or operation, calculated as the difference between the revenue earned and the costs incurred.

Competitive Price-Taker

A company that lacks the authority to influence the market price and is therefore compelled to agree to the existing market price for its goods.

Average Variable Cost

Refers to the total variable costs (costs that change with production volume) divided by the quantity of output produced.