求铁球实心还是空心某铁球V是130立方米,质量是395G,是实心还是空心?(p铁=7.9*10三次方/立方米)wu li
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![求铁球实心还是空心某铁球V是130立方米,质量是395G,是实心还是空心?(p铁=7.9*10三次方/立方米)wu li](/uploads/image/z/3043072-64-2.jpg?t=%E6%B1%82%E9%93%81%E7%90%83%E5%AE%9E%E5%BF%83%E8%BF%98%E6%98%AF%E7%A9%BA%E5%BF%83%E6%9F%90%E9%93%81%E7%90%83V%E6%98%AF130%E7%AB%8B%E6%96%B9%E7%B1%B3%2C%E8%B4%A8%E9%87%8F%E6%98%AF395G%2C%E6%98%AF%E5%AE%9E%E5%BF%83%E8%BF%98%E6%98%AF%E7%A9%BA%E5%BF%83%3F%EF%BC%88p%E9%93%81%3D7.9%2A10%E4%B8%89%E6%AC%A1%E6%96%B9%2F%E7%AB%8B%E6%96%B9%E7%B1%B3%EF%BC%89wu+li)
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