In Order to Explain the Varying Speed of the Planets

question 32

Multiple Choice

In order to explain the varying speed of the planets across the night sky,Ptolemy's model introduced:

• A) elliptical orbits.
• B) the equant.
• C) the celestial sphere.
• D) synodic months.

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Definitions:

Markdown

A reduction from the original or list price of a product, often used as a sales strategy to encourage purchases.

Selling Price

The amount of money for which a product or service is sold to the customer.

Rate

A specified measure or quantity of one thing considered in relation to a unit of another thing; often used in the context of interest rates or growth rates.

Markdown

A reduction from the original or standard price of a product or service, typically to encourage sales.