本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
99.11: Assume that the Earth attracts John1y(7xyiygw,kj; aj7 b Glenn with a gravitational force F a /ph/gia r d:d-ptwp)**ff l4gt 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 *ppf*daw prl4thg-: /i)/gdf to which of 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
| 
