document.write( "Question 1058956: Allowing 5% for waste, determine amount in feet of lead pipe 2 in. outer diameter, 1/4 in. thick from a ton of lead. A cu. ft. of lead weighs 710 lbs. / cu. ft. \r
\n" ); document.write( "\n" ); document.write( "A pipe is considered a cylinder. \r
\n" ); document.write( "\n" ); document.write( ".95 * 2000 = 1900 lbs. (amt. of material). \r
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\n" ); document.write( "\n" ); document.write( "Area of circle; pi ^ r*2 \r
\n" ); document.write( "\n" ); document.write( "Outer; 3.1416 * 1 * 1 = 3.1416 sq. in.
\n" ); document.write( "Inner; 3.1416 * .75 * .75 = 1.76 sq. in. \r
\n" ); document.write( "\n" ); document.write( "3.1416 - 1.76 = 1.38 sq. in. (area of end). \r
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\n" ); document.write( "\n" ); document.write( "3.1416 * .39 * .39 * h = .4778h \r
\n" ); document.write( "\n" ); document.write( "Unsure from here. Thanks.\r
\n" ); document.write( "\n" ); document.write( "Non-homework.\r
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Algebra.Com's Answer #674036 by Alan3354(69443)\"\" \"About 
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Allowing 5% for waste, determine amount in feet of lead pipe 2 in. outer diameter, 1/4 in. thick from a ton of lead. A cu. ft. of lead weighs 710 lbs. / cu. ft. \r
\n" ); document.write( "\n" ); document.write( "A pipe is considered a cylinder. \r
\n" ); document.write( "\n" ); document.write( ".95 * 2000 = 1900 lbs. (amt. of material). \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Area of circle; pi ^ r*2 \r
\n" ); document.write( "\n" ); document.write( "Outer; 3.1416 * 1 * 1 = 3.1416 sq. in.
\n" ); document.write( "Inner; 3.1416 * .75 * .75 = 1.76 sq. in. \r
\n" ); document.write( "\n" ); document.write( "3.1416 - 1.76 = 1.38 sq. in. (area of end). \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "3.1416 * .39 * .39 * h = .4778h
\n" ); document.write( "=======================
\n" ); document.write( "Cross-sectional area (CSA) = pi*(1^2 - 0.75^2) = 1.3745 sq inches
\n" ); document.write( "Volume of pipe = CSA*length
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\n" ); document.write( "2000 lbs/710 lb/cu ft = 2.8169 cu ft of Pb
\n" ); document.write( "-5% = 0.95*2.8169 = 2.676 cu ft
\n" ); document.write( "2.676*12*12*12 = 4624.225 cu inches
\n" ); document.write( "-----
\n" ); document.write( "Vol of pipe = CSA*length
\n" ); document.write( "L = 4624.225/1.3745 =~ 3364.3 inches
\n" ); document.write( "=~ 280 feet
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