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Sagot :
The volume of the copper wire is 226.080 cm³ and the mass of the wire is 2,012.112 g/cm³.
Given that, the length of copper wire=200 m=200000 mm and the diameter of the copper wire=1.2 mm.
We need to find the volume of the copper wire.
What is the formula to find the volume of the cylinder?
The formula to find the volume of a cylinder is πr²h.
Now, the volume of the copper wire=πr²h=[tex]\frac{22}{7} \times (0.6)^{2} \times 200000=2,26,080[/tex] mm³=226.080 cm³
If the density of copper is 8.9 g/cm³, find the mass of the wire.
We know that [tex]Density=\frac{Mass}{Volume} }[/tex].
⇒8.9 g/cm³=[tex]\frac{Mass}{226.080}[/tex]
⇒Mass=2,012.112 g/cm³
Therefore, the volume of the copper wire is 226.080 cm³ and the mass of the wire is 2,012.112 g/cm³.
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