A delivery driver is driving at 35 km/hr towards a siren having a frequency of 350 Hz. The temperature of air is 25 degrees Celsius. Find the frequency heard by the person approaching the siren.

Question

anonymous · Answer

Do you know what concept to use?

anonymous · Answer

No

anonymous · Answer

I ll give you a clue, it goes

eeeeeeeeeeeeeeeeoowwwwwwwwwwwwwwwwwwww...

michele_laino · Answer

here we have to apply the formula of the $Doppler\;Effect$.
So, the requested frequency $\nu_O$, is given by this formula:
$$\huge  {\nu _O} = \left( {1 + \frac{{{v_O}}}{{{v_S}}}} \right)\nu $$
where $v_O=9.72$m/sec, $\nu=350$, and $v_S$ is the speed of sound in the air at $t=25°C$

anonymous · Answer

I was easing into that :-/

irishboy123 · Answer

https://www.youtube.com/watch?v=0rJPvGML9A0

anonymous · Answer

k