4. Two police cars have identical sirens that produce sound of frequency of 570 Hz. A stationary listener is standing between two cars. One car is parked and the other is approaching the listener and both have their sirens on. The listener measures 9.0 beats per second. Find the speed of the approaching police car. The speed of sound is 340 m/s. [ANS: 5.3 m/s]
4. Two police cars have identical sirens that produce sound of frequency of 570 Hz. A stationary listener is standing between two cars. One car is parked and the other is approaching the listener and both have their sirens on. The listener measures 9.0 beats per second. Find the speed of the approaching police car. The speed of sound is 340 m/s. [ANS: 5.3 m/s]
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how do you do question 4? this is a non graded practice worksheet
![3. What is the speed of the train, and is the train traveling away from or toward the bicycle? [9.8 m/s away from
the bicycle]
796.765-340+10 (774)
(340-X) 774
774
1.029
350
(340-x)
340-x-339.99
- X = -9.714
X = 9.714 m/s away from the
bicycle
4. Two police cars have identical sirens that produce sound of frequency of 570 Hz. A stationary listener is
standing between two cars. One car is parked and the other is approaching the listener and both have their
sirens on. The listener measures 9.0 beats per second. Find the speed of the approaching police car. The
speed of sound is 340 m/s. [ANS: 5.3 m/s]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6dac1fe8-9484-432e-9121-04aedd30c8dd%2Ff72e969c-4a61-4ba0-a84b-96f170fe15a6%2F2fjx1ea_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. What is the speed of the train, and is the train traveling away from or toward the bicycle? [9.8 m/s away from
the bicycle]
796.765-340+10 (774)
(340-X) 774
774
1.029
350
(340-x)
340-x-339.99
- X = -9.714
X = 9.714 m/s away from the
bicycle
4. Two police cars have identical sirens that produce sound of frequency of 570 Hz. A stationary listener is
standing between two cars. One car is parked and the other is approaching the listener and both have their
sirens on. The listener measures 9.0 beats per second. Find the speed of the approaching police car. The
speed of sound is 340 m/s. [ANS: 5.3 m/s]
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