the diameter of lead ball is 2.1cm the density of lead used is 11.34g/cm^3 what is the weight of the ball
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Diameter of metallic ball =4.2cm
∴ Radius of metallic ball =2.1cm
Volume of metallic ball = 3 4 πr 3 = 3 4 ×π(2.1) 3 =38.81cm 3
⟹ Mass of metallic ball =2.5g/cm 3 ×38.81cm
3 =97.025g≈97g
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