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MCQAdvancedOrbital Mechanics & Gravitation
USAAAO — 2023 First Round
Question 12
A planet is in an elliptical orbit around a star. Let rmin be the minimum distance between the planet and star, and let rmax be the maximum distance between the planet and star. Suppose that rmax = 4rmin. During what percentage of the time period of each orbit is the planet at least 5 2rmin away from the star?
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Source
USAAAO 2023 First Round. Question text, choices, and answer were transcribed from the official USAAAO exam and solutions PDFs.