If an Observer Were Standing on the Moon with Earth

question 86

Multiple Choice

If an observer were standing on the Moon with Earth in view, how much time would elapse between two successive "Earthrises?"

• A) about 1 synodic month
• B) about 1 sidereal month
• C) essentially forever
• D) about 1 day

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Definitions:

Moral Therapy

A form of psychological therapy from the 19th century emphasizing humane treatment of the mentally ill with a focus on the individual’s moral and spiritual development.

Antipsychotic Drugs

Medications used to treat psychotic disorders, such as schizophrenia, by altering brain chemistry to reduce psychotic symptoms.

Psychotherapist

A trained professional who treats mental health issues and emotional difficulties through talking therapies.

Classical Greek

Referring to the ancient period of Greek civilization, known for its advancements in art, literature, and philosophy, primarily between the 5th and 4th centuries BCE.