document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #804680 by CubeyThePenguin(3113)\"\" \"About 
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\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "density = mass * volume ----> mass = density/volume\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "density/volume
\n" ); document.write( "= (503 lb/ft^3) * (0.0749 ft^3) = 37.7 lb = 17.1 kg
\n" ); document.write( "
\n" );