Calculating Car Speed from Horn Frequency

AI Thread Summary
To calculate the speed of a car approaching with a horn frequency of 450 Hz, while the observed frequency is 503.7 Hz, the Doppler effect must be applied. The speed of sound is given as 1100 ft/sec. Relevant equations include those relating frequency, wavelength, and velocity of sound waves, as well as specific Doppler effect formulas. The discussion highlights the need for a clearer understanding of these equations to solve the problem effectively. The user seeks guidance on how to begin the calculations.
Moroni
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Homework Statement



A car approaches blowing its horn. The observed frequency is 503.7 Hz Assume that the speed of sound is 1100 ft/sec. the car's horn has a frequency of 450 Hz How fast is the car traveling.




Homework Equations


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The Attempt at a Solution



I can't even figure out how to start. Sorry for my ignorance.
 
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Thread moved from Advanced to Intro Physics.

Try again to list the relevant equations. What equation relates the frequency, wavelength and velocity of sould waves? What equations are you shown in your text or other learning materials for the Doppler effect? What does the wikipedia.org page say about the Doppler effect?
 
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Is this it?

Thank You!
 
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