The Best Way to Find the Exact Distance to the Moon

question 11

Multiple Choice

The best way to find the exact distance to the Moon is to:

• A)measure its exact size in the telescope.
• B)use radar reflection times, about 2.56 second.
• C)bounce lasers off the retroreflectors left on the surface by the Apollo landings.
• D)make parallax measurements from observatories on opposite sides of the Earth.
• E)use stellar occultations for precise timings of the Moon's position.

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Definitions:

Categorical Imperative

A foundational concept in Kantian ethics that proposes an action is morally right if it can be universally applied as a principle for behavior, emphasizing duty over consequences.

Law of Reason

A principle suggesting that the laws governing human conduct should be based on logic, ethics, and rationality rather than on arbitrary dictums or supernatural beliefs.

Hypothetical Imperative

A command or rule that applies conditionally, suggesting action is necessary to achieve a particular end or goal, as opposed to moral absolutes.