Bowling ball
Diameter: 25.4 cm
Surface area of the widest part: A = πr2
A = 3.14 x (25.4 : 2)2 = 39.878 cm2
Surface of the Earth:
5.1 x 108 km = 5.1 x 1018 cm
Area of a mole of bowling ball =
SA of ball x 1 mole = 39.878 x 6.022 x 1023 = 240.15 x 1023 cm2
Number of times covering the Earth =
SA of 1 mole of bowling ball : SA of Earth = 240.15 x 1023 : 5.1 x 1018 = 47 x 105
Depth it would cover to = # of times it would cover the Earth x bowling ball diameter = 47 x 105 x 25.4 = 1.2 x 108 cm
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