document.write( "Question 350309: Light travels at a speed of 186,000 mi/s and sound travels at a speed of 1000 ft/s\r
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Algebra.Com's Answer #250422 by Alan3354(69443)\"\" \"About 
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22 ft/sec = 15 mph
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\n" ); document.write( "PS the speed of sound in air varies with temperature.
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