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]
99.11: Assume that the Earth attracts John Glenn with a graqwg q0jandu:g( p46k6vitational force F /dyyja((njb,i7 d np07t3a z )qdm:bbat the surface of the Earth. When he made his famous second flight in orbit, the gravitational force on John Glenn while he was in orbit was closest to which oy )j(: d 073/tdj, bqiyampa7z bnnd(bf the following?
A. 0.95F
B. 0.50F
C. 0.25F
D. 0.10F
E. zero
参考答案: A
本题详细解析:
暂无
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