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26
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澶╀綋杩愬姩涓庝汉閫犲崼鏄?/p>
(
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)
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鑰冪偣涓�
瀹囧畽閫熷害鐨勭悊瑙ｄ笌璁＄畻
]
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鍘熷洜鏄瀹囧畽閫熷害鐨勭悊瑙ｄ笉閫忓交鎴栧洜涓鸿绠楀け璇�屼涪鍒嗐�?/p>
1
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绗竴瀹囧畽閫熷害
(
鐜粫閫熷害
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v
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7.9 km/s
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绗簩瀹囧畽閫熷害
(
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11.2
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灏勯�熷害
2.
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m
v
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GM
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7.9
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10
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鏂规硶浜岋細鐢?/p>
mg
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m
v
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v
1
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gR
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7.9
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10
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绗竴瀹囧畽閫熷害鏄汉閫犲崼鏄熺殑鏈�澶х幆缁曢�熷害锛屾鏃跺畠鐨勮繍琛屽懆鏈熸渶鐭紝
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min
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g
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85
min
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3
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瀹囧畽閫熷害涓庤繍鍔ㄨ建杩圭殑鍏崇郴
(1)
v
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锛?/p>
7.9 km/s
鏃讹紝鍗槦鍦ㄥ湴鐞冭〃闈㈢粫鍦扮悆鍋氬寑閫熷渾鍛ㄨ繍鍔?/p>
(
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)
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v
鍙?/p>
锛?/p>
11.2 km/s
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v
鍙?/p>
锛?/p>
16.7 km/s
鏃讹紝鍗槦缁曞お闃冲仛妞渾杩愬姩銆?/p>
(4)
v
鍙?/p>
鈮?/p>
16.7 km/s
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[
鍏镐緥
]
(2019路
涓滆惀妯℃嫙
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v
2
涓庣涓�瀹囧畽閫熷害
v
1
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v
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2
v
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R
鐨?/p>
4
鍊嶏紝璐ㄩ噺涓哄湴鐞冭川閲?/p>
M
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2
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g
銆?/p>
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(
)
A.
1
2
gR
B.
1
2
gR
C.
gR
D.
1
8
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[
瑙ｆ瀽
]
璁惧湪鍦扮悆琛ㄩ潰椋炶鐨勫崼鏄熻川閲忎负
m
锛岀敱涓囨湁寮曞姏鎻愪緵鍚戝績鍔涘緱
G
Mm
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锛?/p>
m
v
1
2
R
锛屽張鏈?
G
Mm
R
2
锛?/p>
mg
锛岃В寰楀湴鐞冪殑绗竴瀹囧畽閫熷害涓?/p>
v
1
锛?/p>
GM
R
锛?/p>
gR
锛涜璇ユ槦鐞冪殑绗竴瀹囧畽閫熷害涓?/p>
v
1
鈥?/p>
锛?