AP Physics 1mediummcq1 pt
Earth orbits the Sun with period 1 year at radius R. If a planet orbited at radius 4R, its year would last
A.8 years
B.4 years
C.16 years
D.2 years
Explanation
Core Concept
T ∝ r^(3/2): 4^(3/2) = 8 years.
Correct Answer
A8 years
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