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An iron cylinder of radius 1.4cm and len...

An iron cylinder of radius 1.4cm and length 8 cm is found to weigh 369.6g. Calculate the density of iron.

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`V=pir^2l`
`=3.142xx(1.4cm)^2xx(8cm)=49.27cm^3`.
`M=369.6g`
`d=(M)/(V)=(369.6g)/(49.27cm^3)=7.5(g)/(cm^3)`
`=7.5xx1000(kg)/(cm^3)=7500(kg)/(m^3)`
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