求下列曲线所围成的均匀薄板的质心坐标 :[tex=11.0x1.5]/IvfOGB9YQ1VoCtTiQ7GboUAI7pdrCHcjwCHHXZdO4A=[/tex]

2022-06-27

求下列曲线所围成的均匀薄板的质心坐标 :[tex=11.0x1.5]/IvfOGB9YQ1VoCtTiQ7GboUAI7pdrCHcjwCHHXZdO4A=[/tex]

答案：

[b]解[/b]：设均匀薄板的密度为常数 [tex=0.571x1.0]GYJ0hpBI/gsBk7Z5+ceVug==[/tex].由已知可得[tex=25.857x10.571]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[/tex]于是,质心坐标为[p=align:center][tex=9.071x2.786]CUSX85vyvN4N/ph+GAjVtzsGBWTeItjiTUDpgAR5KfvzwRmsk18AhXi0cRXFhKUJ6NseoN6OS+faPTvOunMGxQ==[/tex]

举一反三

内容

0
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1
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3
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