一个体积是10厘米³的铁球,其质量为7.9克,问:(1)它是实心的还是空心的?如果是空心的那么空心部分的体积是多少?(P铁=7.9×10³千克/米³)(2)若把此铁球放入水中时它处于悬浮状
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![一个体积是10厘米³的铁球,其质量为7.9克,问:(1)它是实心的还是空心的?如果是空心的那么空心部分的体积是多少?(P铁=7.9×10³千克/米³)(2)若把此铁球放入水中时它处于悬浮状](/uploads/image/z/14692893-69-3.jpg?t=%E4%B8%80%E4%B8%AA%E4%BD%93%E7%A7%AF%E6%98%AF10%E5%8E%98%E7%B1%B3%26%23179%3B%E7%9A%84%E9%93%81%E7%90%83%2C%E5%85%B6%E8%B4%A8%E9%87%8F%E4%B8%BA7.9%E5%85%8B%2C%E9%97%AE%EF%BC%9A%281%EF%BC%89%E5%AE%83%E6%98%AF%E5%AE%9E%E5%BF%83%E7%9A%84%E8%BF%98%E6%98%AF%E7%A9%BA%E5%BF%83%E7%9A%84%3F%E5%A6%82%E6%9E%9C%E6%98%AF%E7%A9%BA%E5%BF%83%E7%9A%84%E9%82%A3%E4%B9%88%E7%A9%BA%E5%BF%83%E9%83%A8%E5%88%86%E7%9A%84%E4%BD%93%E7%A7%AF%E6%98%AF%E5%A4%9A%E5%B0%91%3F%EF%BC%88P%E9%93%81%3D7.9%C3%9710%26%23179%3B%E5%8D%83%E5%85%8B%2F%E7%B1%B3%26%23179%3B%EF%BC%89%282%EF%BC%89%E8%8B%A5%E6%8A%8A%E6%AD%A4%E9%93%81%E7%90%83%E6%94%BE%E5%85%A5%E6%B0%B4%E4%B8%AD%E6%97%B6%E5%AE%83%E5%A4%84%E4%BA%8E%E6%82%AC%E6%B5%AE%E7%8A%B6)
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