本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
96.23: A hypothetical w)o )anjz 4.3qiyqu3i d*z(lc on y(u hj4mp:;zog ,t.gpj5no4x8fg4planet has seven times the mass of Earth and twice the radius of Earth. jo(5zmt fo 8p :;. gnp4oj y4xh4gu,gnThe magnitude of the gravitational acceleration at the surface 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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