Answers

2016-02-05T22:15:13+05:30
Volume of sphere =4/3 pi r^2
=4/3×22/7×150 (mm)×150
=approximately 94285 mm^3 or 94.285 cm^3.
base of wire = pi r^2=12.5 (approx)
therfore height of wire=94585÷12.5
=7566.8 mm
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2016-02-05T22:17:14+05:30
Volume of the sphere = volume of the cylinder(wire)
r1=radius of the sphere=30cm
r2=radius of the wire=4mm=0.4cm
2/3π r1^{3}  r2^{2} h
2/3*30*30*30=0.4*0.4*h
h=2*30*30*30/1.2*0.4=30*30*30/0.24=27000/0.24
=27000*100/24=112500cm=112.5m
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