document.write( "Question 1090131: A spherical drop of oil with diameter 3 mm falls on water surface and produces a circular oil film of radius 10 cm. Calculate the thickness of oil film. \n" ); document.write( "

Algebra.Com's Answer #704524 by Fombitz(32388) $\"\"$ $\"About$

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The drop of oil has a volume of
\n" ); document.write( " $\"V%5Bd%5D=%284%2F3%29pi%2810%5E3%29\"$
\n" ); document.write( "The radius of the oil film needs to be convert to mm for consistency.
\n" ); document.write( "10cm=100mm
\n" ); document.write( "The cylindrical film has a volume of,
\n" ); document.write( " $\"V%5Bcf%5D=pi%2A%28100%29%5E2%2Ah\"$
\n" ); document.write( "Set the two equal to each other,
\n" ); document.write( " $\"V%5Bd%5D=V%5Bcf%5D\"$
\n" ); document.write( " $\"%284%2F3%29pi%2810%5E3%29=pi%2A%28100%29%5E2%2Ah\"$
\n" ); document.write( " $\"h=%284%2F3%29%28%2810%5E3%29%2F%28100%5E2%29%29\"$
\n" ); document.write( "Work that out for the height in mm.
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