You are driving at a velocity of 95 MPH (42.5 m/s) when you hear a police...
You are driving at a velocity of 95 MPH (42.5 m/s) when you hear a police siren behind you. From your previous run-ins with the law, you know that at a particular point in the sound, the police sirens on the police cars in your town emit a frequency of 751.255 Hz. You hear the sound at a frequency of 752.551 Hz. How fast the the police car going (in m/s)? (Assume that the speed of sound is 343 m/s.)
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You are driving at a velocity of 95 MPH (42.5
m/s) when you hear a police...
you are driving along a highway at 35.0 m/s when you hear the siren of a...
you are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind at constant speed and you perceive the frequency as 1310 Hz. you are relieved that he is in pursuit of a different driver when he continues past you, but now you perceive the frequency as 1240 hz. what is the frequency of the siren in the police car? the speed of sound in air is 343 m/s
1 Consider the case where you hear the police siren at a frequency of 800 Hz...
1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3. If the police car is...
1 Consider the case where you hear the police siren at a frequency of 800 Hz...
1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3. If the police car is...
Please answer all four questions. 1 Consider the case where you hear the police siren at...
Please answer all four questions.
1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3....
2. (19 points) You are driving along a highway when you hear the siren of a...
2. (19 points) You are driving along a highway when you hear the siren of a police car driving at approaching you from behind, and you perceive the frequency as 1320 Hz. You are relieved that he is in pursuit of a speeding Porsche 911car when he continues past you, but now you perceive the frequency as 1265 Hz. (The speed of sound in the air is 344 m/s.) m/ a) What is the frequency of the siren in the...
You are driving down the road at 15.6 m/s (35 mph) when an ambulance passes you...
You are driving down the road at 15.6 m/s (35 mph) when an ambulance passes you with its siren blaring. The ambulance siren produces a frequency of 700 Hz. As the ambulance approaches you from behind, you hear a frequency of 730 Hz . The speed of sound in air is 344 m/s. What is the speed of the ambulance? The positive direction points from your car (listener) toward the ambulance (source). Express your answer in meters per second.
3. If the police car is moving at 34 m/s and you hear a frequency of...
3. If the police car is moving at 34 m/s and you hear a frequency of 550 Hz. when the car is approaching, what is the original frequency of the police car? (use the speed of sound as 343 m/s)
4. If the police car is moving at 34 m/s and you hear a frequency of...
4. If the police car is moving at 34 m/s and you hear a frequency of 450 Hz. when the car has passed you, what is the original frequency of the police car? (use the speed of sound as 343 m/s).
A police car drives past you with its siren on. While the car is approaching, you...
A police car drives past you with its siren on. While the car is approaching, you hear a frequency of 550 Hz. A Recalling that the speed of sound is 767 mph, what is the speed of the police car if the siren has a frequency of 507 Hz when neither you nor the car are moving? B What would the apparent frequency of the siren be if you were driving toward the parked police car at this same speed....
14. You are driving an ambulance through traffic at 10 m/s to the scene of a...
14. You are driving an ambulance through traffic at 10 m/s to the scene of a vicious cheetah attack. A police car is already there. Both the ambulance and the police car have sirens that generate 800 Hz tones. When you are 1 km away, the police siren's loudness is approximately 40 dB. a. (6 points) How far are you from the police car when it's siren's loudness is 86 dB? -TP unt b. (6 points) As you approach, what...
1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3. If the police car is...
1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3. If the police car is...
Please answer all four questions.
1 Consider the case where you hear the police siren at a frequency of 800 Hz when approaching and 400 Hz after passing you. How fast is the police traveling? 2. approaching and 450 Hz after passing you, but because of changes in the atmosphere, the speed of sound is 300 m/s. How fast is the police traveling? Consider the case where you hear the police siren at a frequency of 800 Hz when 3....
2. (19 points) You are driving along a highway when you hear the siren of a police car driving at approaching you from behind, and you perceive the frequency as 1320 Hz. You are relieved that he is in pursuit of a speeding Porsche 911car when he continues past you, but now you perceive the frequency as 1265 Hz. (The speed of sound in the air is 344 m/s.) m/ a) What is the frequency of the siren in the...
3. If the police car is moving at 34 m/s and you hear a frequency of 550 Hz. when the car is approaching, what is the original frequency of the police car? (use the speed of sound as 343 m/s)
4. If the police car is moving at 34 m/s and you hear a frequency of 450 Hz. when the car has passed you, what is the original frequency of the police car? (use the speed of sound as 343 m/s).
14. You are driving an ambulance through traffic at 10 m/s to the scene of a vicious cheetah attack. A police car is already there. Both the ambulance and the police car have sirens that generate 800 Hz tones. When you are 1 km away, the police siren's loudness is approximately 40 dB. a. (6 points) How far are you from the police car when it's siren's loudness is 86 dB? -TP unt b. (6 points) As you approach, what...
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