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]
98.24: A planet has a 0j2xtg(ak/s x raob iy* znxxv+x8kc mf 1nf:knf +0+54hdius one-half that of Earth and a mass one-fifth the Earth’s mass. Thfxy 1 i5n+onmkx:n f++kh b 8f4v0zxc*e 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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