You are driving toward a stationary siren that produces a sound of 100 Hz. While approaching it at 25 m/s you hear a frequency of 107 Hz, what is the temperature outside? might need formulas: n1sinθ1=n2sinθ2and v=331.3+0.6t... meaning- the speed of sound equals 331.3+ 0.6 (temperature)

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Asked Oct 6, 2019
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You are driving toward a stationary siren that produces a sound of 100 Hz. While approaching it at 25 m/s you hear a frequency of 107 Hz, what is the temperature outside?
 
might need formulas: n1sinθ1=n2sinθ2
and v=331.3+0.6t... meaning- the speed of sound equals 331.3+ 0.6 (temperature) 
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Expert Answer

Step 1

Given:

Frequency of the source, n = 110 Hz

Observed frequency = 107 Hz

Speed of the observer = 25 m/s

Speed of the sound = 331.3 + 0.6 T

Step 2

Calculating the te...

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Oriyinal Frequny of Spred of n loo Hz obser ver, = 25 mys observed Fre. vV Feguny n = whe v Sound sReces 331 30.6T (tniveh) observed freauency Sub fituting (Cni vea) no lo M2 walues vt 25m/ tooMz v(o V 2500 2500 ys Fem e , = 331-3 0.6 T 2500 331- 3 t o.6T So, 357.14 T 357 14 331-3 43.06 Units o6 43-06 Units

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