# a ball of mass 150 circumference 22cm .what is its density?

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- oubaasLv 75 months ago
Volume V = PI/6*(22/PI)^3 = 22^3/(6*3.1416^2) = 179.81 cm^3

density ρ = m/V = 150/179.81 = 0.8342 g/cm^3

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- Anonymous5 months ago
Circumference C = 2πr, so r = C/(2π) = 22/(2π) = 3.5014cm

Volume V = (4/3)πr³ = (4/3)π x 3.5014³ = 179.8 cm³

Density = mass/volume, so assuming 150 means 150grams:

Density = 150/179.8 = 0.834 g/cm³

But you may be expected to round to 0.83g/cm³.

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