SOLUTION: The density of steel is 503 lb / cu. ft. What is the mass (in kg) of a steel cylinder puck, whose height is 3 cm, and whose radius is 15 cm?

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Question 895891: The density of steel is 503 lb / cu. ft. What is the mass (in kg) of a steel cylinder puck, whose height is 3 cm, and whose radius is 15 cm?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
puck volume = pi+%2A+r%5E2+%2A+h+=+pi+%2A+%2815%29%5E2+%2A+3+=+675+pi cm^3 = 0.0749 ft^3

density = mass * volume ----> mass = density/volume

density/volume
= (503 lb/ft^3) * (0.0749 ft^3) = 37.7 lb = 17.1 kg