Kepler's discovery that T²/r³ = K applies A) to orbits where K is a universal constant. B) only to circular orbits. C) to elliptical orbits where r is the average distance. D) to lunar motion provided K is the same for planetary motion.

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Quizplus · Accepted Answer

Kepler's third law, T²/r³ = K, applies to elliptical orbits where r is the semi-major axis (average distance from the sun), not just circular orbits.

Kepler's Discovery That T2/r3 = K Applies

Kepler's Discovery That T²/r³ = K Applies