document.write( "Question 1181800: Could you please show me the steps how to solve this problem?
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document.write( "The Doppler effect causes a sound moving towards you to sound higher pitched and a sound moving away from you to sound lower pitched, like observed in listening to the car horn in the video.\r
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document.write( "The equation for this is
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document.write( "f= c/(c+v)f0
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document.write( " , where
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document.write( "f is the observed frequency (pitch) of the sound, in Hertz
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document.write( "c is the speed of sound, about 761 miles per hour,
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document.write( "v is the speed of the sound source, in this case the car, in miles per hour
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document.write( "f0 is the frequency of the sound when stationary\r
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document.write( "Using a spectrum analyzer, we could determine the observed frequency when the car was driving away was 239 Hz and the stationary frequency was 256 Hz.\r
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document.write( "Use this information and the equation to estimate the speed of the car in miles/hour, to 1 decimal place. \n" );
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Algebra.Com's Answer #811715 by ikleyn(52805)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "All we need to do is to substitute the given frequencies into equation\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 239 =\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This problem (its TWIN version) was just solved once at this forum under the link\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/equations/Equations.faq.question.1181384.html\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/equations/Equations.faq.question.1181384.html\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |