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The diameter of a lead ball is 2.1 cm. The density of the lead used is 11.34g/e. What isthe weight of the ball? |
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Answer» Diameter of the ball = 2.1 cm or radius = 2.1/2 = 1.05 cmVolume of the Spherical lead ball = 4/3πr³= 4/3*22/7*1.05*1.05*1.05Volume of the lead ball = 4.851 cu cmLead used for making lead ball = 11.34 g/cu cmSo, the weight of the lead ball = 11.34× 4.851Weight of the lead ball = 55.01 grams |
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