the diameter of A copper sphere is 6 CM the sphere is melted and is drawn into a long wire of uniform circular cross section if the length of the wire is 36 cm find its radius
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Answer:
Step-by-step explanation:
Given,
The diametre of sphere=6cm
Than,the radius =6/2cm
=3cm
Now,
This copper sphere is melted and form a circular wire whose lenght is 36 cm
Now
The volume of sphere=the volume of wire
So,
4/3×pie×r^3=pie× r^2×h
4/3×22/7×6^3=22/7×r^2×36
905.142=113.142×r^2
r^2=905.142/113.142
r^2=8
r=2root2
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