1700993000
4-25
1700993001
1700993002
4-26 略.
1700993003
1700993004
1700993005
4-27 (1)(2)0.
1700993006
1700993007
4-28 不守恒,其他略.
1700993008
1700993009
4-29 上方顶角为19.8°,侧方顶角为189.3°,下方顶角为70.8°:不能.
1700993010
1700993011
4-30 略. 4-31 0.048或0.153.
1700993012
1700993013
4-32 (1)需燃料28.7kg; (2)需燃料117kg.
1700993014
1700993015
1700993016
4-33
1700993017
1700993018
第 五 章
1700993019
1700993020
1700993021
5-1 (1)6aλ; (2)
1700993022
1700993023
5-2 各边中点构成的小三角形内心.
1700993024
1700993025
5-3 (M+3m)g.
1700993026
1700993027
5-4 不能.
1700993028
1700993029
1700993030
5-5 aC0=kl/(m1+m2),
1700993031
1700993032
1700993033
5-6 (1)略; (2)
1700993034
1700993035
1700993036
5-7
1700993037
1700993038
5-8 略.
1700993039
1700993040
1700993041
5-9
1700993042
1700993043
1700993044
5-10
1700993045
1700993046
1700993047
5-11
1700993048
1700993049
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