document.write( "Question 826568: The radius of a spherical balloon is increasing at a rate of 2 cm/sec. At whar rate is the air being blown into the balloon when the radius is 12 cm. \r
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Algebra.Com's Answer #498150 by Alan3354(69443)\"\" \"About 
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The radius of a spherical balloon is increasing at a rate of 2 cm/sec. At whar rate is the air being blown into the balloon when the radius is 12 cm.
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\n" ); document.write( "Neglecting changes in pressure:
\n" ); document.write( "\"V+=+4pi%2Ar%5E3%2F3\"
\n" ); document.write( "\"dV%2Fdt+=+4pi%2Ar%5E2%2A%28dr%2Fdt%29+=+4pi%2Ar%5E2%2A2\"
\n" ); document.write( "\"dV%2Fdt+=+1152pi\" cc/sec
\n" ); document.write( "=~ 3.62 liters/second\r
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