A fire truck emits a sound with the frequency of 775Hz.(a) what is the frequency detected by a stationary observer if the fire truck is moving 45 m/s towards the observer? (b)what frequency will be frequency detected if the ambulance is moving 45 m/s away from the observer? (the speed of sound in air at 20°C is 343 m/s)

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Chapter1: Units, Trigonometry. And Vectors
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A fire truck emits a sound with the frequency of 775Hz.(a) what is the frequency detected by a stationary observer if the fire truck is moving 45 m/s towards the observer? (b)what frequency will be frequency detected if the ambulance is moving 45 m/s away from the observer? (the speed of sound in air at 20°C is 343 m/s)

A fire truck emits a sound with the frequency of 775HZ.(a) what is the frequency
detected by a stationary observer if the fire truck is moving 45 m/s towards the
observer? (b)what frequency will be frequency detected if the ambulance is
moving 45 m/s away from the observer? (the speed of sound in air at 20°C is
343 m/s)
Transcribed Image Text:A fire truck emits a sound with the frequency of 775HZ.(a) what is the frequency detected by a stationary observer if the fire truck is moving 45 m/s towards the observer? (b)what frequency will be frequency detected if the ambulance is moving 45 m/s away from the observer? (the speed of sound in air at 20°C is 343 m/s)
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