Question
Mon January 30, 2012 By:

The outer and inner diameters of a cylindrical wooden pipe are28cm and 24 cm respectively. Find the mass of pipe of length 35 cm if 1 cu. cm of wood has a mass of 0.6 gm

Expert Reply
Mon January 30, 2012
Inner radius = 12 cm Outer radius = 14 cm Length = 35 cm Volume of pipe = pi (14^2 - 12^2) x 35 = 5720 Mass of 1 cu cm wood = 0.6 gm So mass of 5720 cu cm wood = 5720 x 0.6 gm = 3.432 kg
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