A solid metal cylinder is 20cm in height and has a radius of 1.5cm .This is melted down and cast into spheres each of radius 1.5cm. How many spheres can be cast from the cylinder?
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Step-by-step explanation:
solution: Volume of the rectangular block= (4*2*1.5)cm
= 12cm^3
Mass of block= 93.6g
Density of steel block= Mass/Volume
= 93.6/12
=7.8g/cm^3
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