An ambulance sounding its siren with a frequency of 1550 Hz is traveling along a straight...
An ambulance sounding its siren with a frequency of 1550 Hz is traveling along a straight road with a speed of 34 m/s. Two cars are ahead of the ambulance in an adjacent lane. One car has completely stopped. A second car continues to travel in the same direction as the ambulance with a speed of 20 m/s.
(a) Which of the two cars hears the highest pitch coming from the ambulance? Explain.
(b) Suppose the driver of the stationary car hears a frequency of 1704 Hz coming from the ambulance siren. What is the speed of sound on this day?
(c) Determine the siren's frequency experienced by someone in the car moving at 20 m/s.
(d) Suppose the driver of the stationary car honks her horn to get the attention of the other car. If the horn has a frequency of 500 Hz, what frequency will be heard by someone in the car moving at 20 m/s? Assume that the stationary car is several meters behind the car moving at 20 m/s.
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An ambulance sounding its siren with a frequency of 1550 Hz is
traveling along a straight...
3. An ambulance is moving with a certain speed v and sounding its siren with a...
3. An ambulance is moving with a certain speed v and sounding its siren with a frequency f. A stationary observer hears a frequency of 372 Hz as the ambulance approaches him and a frequency of 338 Hz as the ambulance moves away from him. If the temperature of air is 30°C, what is the speed of the ambulance?
The siren on an ambulance is emitting a sound whose frequency is 2850 Hz. The speed...
The siren on an ambulance is emitting a sound whose frequency is 2850 Hz. The speed of sound is 343 m/s. (a) If the ambulance is stationary and you (the "observer") are sitting in a parked car, what are the wavelength and the frequency of the sound you hear? (b) Suppose that the ambulance is moving toward you at a speed of 26.6 m/s. Determine the wavelength and the frequency of the sound you hear. (c) If the ambulance is...
A stationary ambulance has stopped at an intersection. The ambulance's siren emits a 628-Hz sound but...
A stationary ambulance has stopped at an intersection. The ambulance's siren emits a 628-Hz sound but the driver of a car moving away from the ambulance hears a 595-Hz sound. What is the speed of the car? More than 16 m/s. Between 10 m/s and 12 m/s. Between 12 m/s and 14 m/s. Less than 8 m/s. Between 14 m/s and 16 m/s.
An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 500Hz. Each...
An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 500Hz. Each of the following cars is traveling down the road as described. Rank the cars according to the frequency the driver will hear. Select 1 for the car which will hear the highest frequency. Remember that if the frequency is the same, select the same rank and skip the next number. I really suggest drawing a picture to help sort this out. Keep in mind...
An ambulance driver traveling at 32.0 m/s (71.6 mph) honks his horn as he sees a...
An ambulance driver traveling at 32.0 m/s (71.6 mph) honks his horn as he sees a motorist ahead on the highway traveling in the same direction. The motorist hears a frequency of 392 Hz and notices that his own speedometer reads 33.6 mph (15.0 m/s). Calculate the frequency that the ambulance driver hears. (Speed of sound is 340 m/s) (in Hz)
An ambulance moving at 43 m/s sounds its siren whose frequency is 400 Hz. A car...
An ambulance moving at 43 m/s sounds its siren whose frequency is 400 Hz. A car is moving in the same direction as the ambulance at 19 m/s. (a) What frequency does a person in the car hear as the ambulance approaches the car? Hz (b) What frequency does a person in the car hear after the ambulance passes the car? Hz
An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 380Hz. Each...
An ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 380Hz. Each of the following cars is traveling down the road as described. Determine if the driver of the car will hear a frequency the same as 380Hz, higher than 380Hz, or lower than 380Hz. I really suggest drawing a picture to help sort this out. a) A car driving East at a speed of 20m/s. The car is in front of the ambulance. b) A...
An ambulance with a siren emitting a whine at 1700 Hz overtakes and passes a cyclist...
An ambulance with a siren emitting a whine at 1700 Hz overtakes and passes a cyclist pedaling a bike at 2.44 m/s. After being passed, the cyclist hears a frequency of 1680 Hz. How fast is the ambulance moving? (Use 343 m/s for the speed of sound in air.)
An ambulance moving at 41 m/s sounds its siren whose frequency is 490 Hz. A car...
An ambulance moving at 41 m/s sounds its siren whose frequency is 490 Hz. A car is moving in the same direction as the ambulance at 24 m/s. (a) What frequency does a person in the car hear as the ambulance approaches the car? _________Hz (b) What frequency does a person in the car hear after the ambulance passes the car? __________Hz
Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along...
Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along a straight line and passes by a stationary observer. The observer notices that the frequency of sound heard change Speed of sound in air 330 m s-1] 0when the sound is moving away from him. Determine the speed of the sound source. its siren emitting a sound of frequency 600.0 Hz moves with a speed of me that the speed of sound is 345...
3. An ambulance is moving with a certain speed v and sounding its siren with a frequency f. A stationary observer hears a frequency of 372 Hz as the ambulance approaches him and a frequency of 338 Hz as the ambulance moves away from him. If the temperature of air is 30°C, what is the speed of the ambulance?
An ambulance moving at 43 m/s sounds its siren whose frequency is 400 Hz. A car is moving in the same direction as the ambulance at 19 m/s. (a) What frequency does a person in the car hear as the ambulance approaches the car? Hz (b) What frequency does a person in the car hear after the ambulance passes the car? Hz
Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along a straight line and passes by a stationary observer. The observer notices that the frequency of sound heard change Speed of sound in air 330 m s-1] 0when the sound is moving away from him. Determine the speed of the sound source. its siren emitting a sound of frequency 600.0 Hz moves with a speed of me that the speed of sound is 345...
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