本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
98.24: A planet has a radius one-half that of Eh2kqxmco.c6c9bcm/; arth and a mass one-fifth the Earmchmk9c c/x.qc62o;b xqubmusz1v /v r)*.;h,c div 4p99atoth’s massbmqx uvado uz,)9p/h9t4.r1 vc*;isv. The gravitational acceleration at the surface of the planet is most nearly
A. $4.0 m/s^{2}$
B. $8.0 m/s^{2}$
C. $12.5 m/s^{2}$
D. $25.0 m/s^{2}$
E. $62.5.0 m/s^{2}$
参考答案: B
本题详细解析:
暂无
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