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A rubber shell filled with air forms a rubber ball. The shell’s outer diameter is 12 mm and its inner diameter is 10 mm. Determine the volume of rubber used to make the ball. A.…
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A rubber shell filled with air forms a rubber ball. The shell’s outer diameter is 12 mm and its inner diameter is 10 mm. Determine the volume of rubber used to make the ball. A.…
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Feb 5, 2019
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A rubber shell filled with air forms a rubber ball. The shell’s outer diameter is 12 mm and its inner diameter is 10 mm. Determine the volume of rubber used to make the ball.
A. 523.6 mm³
B. 4.2 mm³
C. 381.2 mm³
D. 46.0 mm³
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JackRed
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The radius of outer sphere = half the diameter = 6 mm and of the inner radius = 5 mm.
Volume of rubber = volume of the 'outer' sphere - volume of the 'inner' sphere
Volume of the rubber = 4/3 pi 6^2 - 4/3 pi 5^2 = 46.0 mm^3 Answer
Jon Egeland
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Feb 10, 2019
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