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MCQBeginnerOrbits, Gravitation & Dynamics
IAAC — 2021 Final Round
Question 2
The distance between two objects with equal mass is doubled. By how much does the gravitational force between the objects decrease?
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Source
Source: International Astronomy and Astrophysics Competition (IAAC), Final Round 2021. Question wording and answer-choice text are transcribed from the official training PDF; the explanation and metadata are original.