Valencian Community PAU Physics Practice Questions - Valencian Community PAU Physics (Física - Proves D'Accés A La Universitat) Exam

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Which expression gives the orbital speed v of a satellite in a stable circular orbit of radius r around a planet of mass M?

v = sqrt(G * M / r) v = G * M / r^2 v = sqrt(2 * G * M / r) v = G * M / r

Correct Answer:

v = sqrt(G * M / r)

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