If a satellite's radial velocity is zero at all times, its orbit must be

A) parabolic.
B) elliptical.
C) circular.
D) geosynchronous.


Answer: C

Physics & Space Science

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Consider the two systems below, labeled A and B

A B Which gas has the higher pressure?

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Leptons are built out of quarks

Indicate whether the statement is true or false

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The sound of a jet engine is given as 120 dB. What is the intensity of the jet sound wave?

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