铅球实际上是在铁壳里灌以铅制成的。一只铅球的质量是3.62千克，

铅球实际上是在铁壳里灌以铅制成的。一只铅球的质量是3.62千克，体积是350厘米3，问铅球里灌有多少铅？（ρ铁＝7.9×103kg/m3，ρ铅＝11.3×103kg/m3）

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铅球实际上是在铁壳里灌以铅制成的。一只铅球的质量是3.62千克，

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