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MCQAdvancedGravitation, Orbits & Dynamics
USAAAO — 2016 First Round
Question 10
Mercury’s orbit around the Sun has a semimajor axis of 0.387 AU. Knowing that the mass of the Sun is 1.99*10³⁰ kg and assuming the mass of Mercury is negligible, what is Mercury’s orbital speed when it’s 0.34 AU away from the Sun in its orbit?
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