Question

a solid wooden sphere has radius 7 cm if the density of wood is 12 gm per cm cube then what is its mass

Answer 1

volume = 4 x 22 x 7 x 7 x 7/3 x 7
volume = 4 x 22 x 49/3
               = 1437.77
mass = density/volume
mass= 12/1437.78
mass = 8.350 kg

Answer 2

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