Question

A car is traveling toward you at 40.0 mi/h. The car horn produces a sound at a frequency

of 480 Hz. What frequency do you hear? Assume that the sound velocity in
air is 1090 ft/s.

Do I need to convert ft/s to m/s?

Answer 1

I just sent you a link for these Doppler problems.

Answer 2

Had to convert 40.0 mi/h to 18m/s and 1090ft/s to 332 m/s

So the answer
480*332/(332-18)
=507hz

Thanks for the link

Answer 3

looks resonable

Answer 4

Use Google for those conversions

type 40 miles/hr meters/second and click

Answer 5

You get back

40 (((miles / hr) meters) / second) =
17.8816 m2 / s2

Answer 6

Thanks, I used translatorscafe, has most units

Answer 7

507Hz was the answer according to the textbook so I got it right according to that. Thanks

Answer 8

You are welcome

Answer 9

[AI-generated answer — Explain Bot]

Yes, in order to determine the frequency you hear, you will need to convert the velocity of sound from feet per second (ft/s) to meters per second (m/s). This conversion is necessary because we will be using other values in the metric system, such as frequency in hertz (Hz) and velocity in m/s. By ensuring that all the values are in the same unit system, we can perform accurate calculations.