document.write( "Question 914546: A typical adult human lung contains about 330 million tiny cavities called alveoli. Estimate the average diameter of a single alveolus. Assume the alveoli are spherical and a typical human lung is about 2.05 liters. \n" ); document.write( "
Algebra.Com's Answer #555180 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( ".
\n" ); document.write( "\"%284%2F3%29pir%5E3\" = \"2.05x10%5E6mm%5E3%2F300x10%5E6\"
\n" ); document.write( " r^3 = \"%283%2F4%29%282.05mm%5E3%2F300%29%2Fpi+\"
\n" ); document.write( "r = \"root%283%2C2.05%2F400pi%29+\" = .12mm (nearest one-hundredth)
\n" ); document.write( "d = .24mm
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