A copper sphere of diametre 18cm is drawn into a wire of diametre 4mm find the length of the wire
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volume of sphere=4/3* pi* r^3
volume of wire=pi* r^2* h
volume of sphere = volume of wire
4/3*pi*9*9*9=pi*0.2*0.2*h
972*pi=0.04*pi*h
972=0.04*h
h=972/0.04
h=24300
volume of wire=pi* r^2* h
volume of sphere = volume of wire
4/3*pi*9*9*9=pi*0.2*0.2*h
972*pi=0.04*pi*h
972=0.04*h
h=972/0.04
h=24300
HardikBorana:
24300cm
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