Physics Unit5: Circular Motion & Gravitation (id: fb84a9739)

本题目来源于试卷: Physics Unit5: Circular Motion & Gravitation，类别为 通用国际物理

[单选题]
Two moons orbit a planet in nearly circul9h+ wf8ojy5gnm 6hz- qajv 9o *7q+gbler orbits. Moon A has orbital radius r, and moon B has orbital radius 4r. Moon A takes 20 days to complete one orbit. How long does it take* 9 +oveb7qgjl moon B to complete an orbit?

A. $20 \; days$
B. $80 \; days$
C. $160 \; days$
D. $320 \; days$


参考答案:  C


本题详细解析: 暂无

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