九年浮力题目一载人升空气球,(可以看作球体)球的体积V=4/3πR3(四分之三乘以πR的三次方)球的半径为4m,球内充满氦气,气球能搭载的最大质量为125kg(氦气密度为0.18kg/m3,空气的密度为1.29kg/
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![九年浮力题目一载人升空气球,(可以看作球体)球的体积V=4/3πR3(四分之三乘以πR的三次方)球的半径为4m,球内充满氦气,气球能搭载的最大质量为125kg(氦气密度为0.18kg/m3,空气的密度为1.29kg/](/uploads/image/z/12386030-14-0.jpg?t=%E4%B9%9D%E5%B9%B4%E6%B5%AE%E5%8A%9B%E9%A2%98%E7%9B%AE%E4%B8%80%E8%BD%BD%E4%BA%BA%E5%8D%87%E7%A9%BA%E6%B0%94%E7%90%83%2C%EF%BC%88%E5%8F%AF%E4%BB%A5%E7%9C%8B%E4%BD%9C%E7%90%83%E4%BD%93%EF%BC%89%E7%90%83%E7%9A%84%E4%BD%93%E7%A7%AFV%3D4%2F3%CF%80R3%28%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%89%E4%B9%98%E4%BB%A5%CF%80R%E7%9A%84%E4%B8%89%E6%AC%A1%E6%96%B9%EF%BC%89%E7%90%83%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BA4m%2C%E7%90%83%E5%86%85%E5%85%85%E6%BB%A1%E6%B0%A6%E6%B0%94%2C%E6%B0%94%E7%90%83%E8%83%BD%E6%90%AD%E8%BD%BD%E7%9A%84%E6%9C%80%E5%A4%A7%E8%B4%A8%E9%87%8F%E4%B8%BA125kg%EF%BC%88%E6%B0%A6%E6%B0%94%E5%AF%86%E5%BA%A6%E4%B8%BA0.18kg%2Fm3%2C%E7%A9%BA%E6%B0%94%E7%9A%84%E5%AF%86%E5%BA%A6%E4%B8%BA1.29kg%2F)
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