10. (3) Using the same formula for the speed of sound in question temperature outside if your friend is driving towards you at honking their horn. The horn has an actual frequency of 15 be 154 Hz. Show all your work, including your rearranging c

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Chapter1: Units, Trigonometry. And Vectors
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Please answer 10.

9.
(3)
An ambulance is driving away from you in an area with a speed limit of 50 km/h. You
measure the frequency of one of its siren tones to be 737 Hz, when you know the actual
frequency of the tone to be 770 Hz. The temperature outside is 13°C. Use the formula
below to approximate the speed of sound in that temperature, then determine if the
ambulance was speeding. Show all your work, including your rearranging of the Doppler
equation.
v = 331 +0.61T where v is the speed of sound and T is the temperature in °C.
10. Using the same formula for the speed of sound in question 9, calculate the
temperature outside if your friend is driving towards you at a speed of 30 km/h and
honking their horn. The horn has an actual frequency of 150 Hz but you measure it to
be 154 Hz. Show all your work, including your rearranging of the Doppler equation.
(3)
8
Transcribed Image Text:9. (3) An ambulance is driving away from you in an area with a speed limit of 50 km/h. You measure the frequency of one of its siren tones to be 737 Hz, when you know the actual frequency of the tone to be 770 Hz. The temperature outside is 13°C. Use the formula below to approximate the speed of sound in that temperature, then determine if the ambulance was speeding. Show all your work, including your rearranging of the Doppler equation. v = 331 +0.61T where v is the speed of sound and T is the temperature in °C. 10. Using the same formula for the speed of sound in question 9, calculate the temperature outside if your friend is driving towards you at a speed of 30 km/h and honking their horn. The horn has an actual frequency of 150 Hz but you measure it to be 154 Hz. Show all your work, including your rearranging of the Doppler equation. (3) 8
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