本题目来源于试卷: Gravity and Planetary Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
96.23: A hypothetical planet has se4h , p dg7vx4+bb8+efmochy-l* ks6 klven times the mas*hhuw650oawf,w k c8howzzn 4sa h -+qi/q-)es of Earth and twice the radius of Earth. The magnitude of the gravitational acceleration at the surf,uww5hiash-oqo6fqk + )h48w/wzh0-cazne*ace of this planet is most nearly:
A. $2.9m/s^{2}$
B. $5.7 m/s^{2}$
C. $17.5m/s^{2}$
D. $35 m/s^{2}$
E. $122m/s^{2}$
参考答案: C
本题详细解析:
暂无
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