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9 Two cars rapidly approach each other on a highway. One driver honks his horn, emitting...
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)
4. (5 points) Two cars have identical horns, each emitting a frequency of fo = 395...
4. (5 points) Two cars have identical horns, each emitting a frequency of fo = 395 Hz. One of the cars is moving with a speed of 12.0 m/s toward a bystander waiting at a corner, and the other car is parked. The speed of sound is 343 m/s. What is the beat frequency heard by the bystander? fbeat
Two cars are equipped with the same single-frequency horn. When one is at rest and the...
Two cars are equipped with the same single-frequency horn. When one is at rest and the other is moving forward toward the first at 18m/s the driver at rest hears a beat frequency of 5.5 Hz. What is the frequency the horns emit on a day when the speed of sound is 341m/s?
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...
Two trains approach each other on separate but adjacent tracks. Train 1 is traveling at a...
Two trains approach each other on separate but adjacent tracks. Train 1 is traveling at a speed of 35.9 m/s and train 2 at a speed of 27.6 m/s. If the engineer of train 1 sounds his horn which has a frequency of 520 Hz, determine the frequency of the sound heard by the engineer of train 2. (Use 343 m/s as the speed of sound. Enter your answer to the nearest Hz.)
Two automobiles are equipped with the same singlefrequency horn. When one is at rest and the...
Two automobiles are equipped with the same singlefrequency horn. When one is at rest and the other is moving toward the first at 13 m/s, the driver at rest hears a beat frequency of 6.0 Hz . Part A What is the frequency the horns emit? Assume T = 20° C. Express your answer to two significant figures and include the appropriate units. НА ? f= Value Units The Doppler effect using ultrasonic waves of frequency 2.22x106 Hz is used...
Two cars are stuck in a traffic jam and each sounds its horn at a frequency...
Two cars are stuck in a traffic jam and each sounds its horn at a frequency of 669 Hz. A bicyclist between the two cars, r= 4.68 m from each horn (see the figure below), is disturbed to find she is at a point of constructive interference. How far backward (in m) must she move to reach the nearest point of destructive interference? Take the speed of sound to be V= 343 m/s
You're driving your new Corvette convertible and can clearly hear other cars driving nearby. One of...
You're driving your new Corvette convertible and can clearly hear other cars driving nearby. One of these cars honks their horn and your car, with its apps and sensors, displays the horn sound as 760Hz. Your Corvette also registers the car as a Mustang with a car horn of 795Hz. You are stopped at a stop light when their horn blares. Another of your Corvette apps measures the air temperature to be 26°C. a) What is the speed of sound...
Question 5 [6 marks] Two cars move directly away from one another. One car sounds a...
Question 5 [6 marks] Two cars move directly away from one another. One car sounds a horn whose frequency is 486 Hz and a person in the other car hears a frequency of 473 Hz. The speed of sound is 343 m/s. The car which sounds its horn is moving twice as fast as the other car. What is the speed of the slower car? [6 marks] Question 6 [5 marks] When an open metal pipe is cut into two...
1. You're driving your new Tesla convertible and can clearly hear other cars driving nearby. One...
1. You're driving your new Tesla convertible and can clearly hear other cars driving nearby. One of these cars honks their horn and your car, with its fancy apps and sensors, displays the horn sound as 760Hz. Your Tesla also registers the car as a Ferrari with a car horn of 795Hz. You are stopped at a stop light when their horn blares. Another of your Tesla's apps measures the air temperature to be 26°C. a) What is the speed...
4. (5 points) Two cars have identical horns, each emitting a frequency of fo = 395 Hz. One of the cars is moving with a speed of 12.0 m/s toward a bystander waiting at a corner, and the other car is parked. The speed of sound is 343 m/s. What is the beat frequency heard by the bystander? fbeat
Two automobiles are equipped with the same singlefrequency horn. When one is at rest and the other is moving toward the first at 13 m/s, the driver at rest hears a beat frequency of 6.0 Hz . Part A What is the frequency the horns emit? Assume T = 20° C. Express your answer to two significant figures and include the appropriate units. НА ? f= Value Units The Doppler effect using ultrasonic waves of frequency 2.22x106 Hz is used...
You're driving your new Corvette convertible and can clearly hear other cars driving nearby. One of these cars honks their horn and your car, with its apps and sensors, displays the horn sound as 760Hz. Your Corvette also registers the car as a Mustang with a car horn of 795Hz. You are stopped at a stop light when their horn blares. Another of your Corvette apps measures the air temperature to be 26°C. a) What is the speed of sound...
Question 5 [6 marks] Two cars move directly away from one another. One car sounds a horn whose frequency is 486 Hz and a person in the other car hears a frequency of 473 Hz. The speed of sound is 343 m/s. The car which sounds its horn is moving twice as fast as the other car. What is the speed of the slower car? [6 marks] Question 6 [5 marks] When an open metal pipe is cut into two...
1. You're driving your new Tesla convertible and can clearly hear other cars driving nearby. One of these cars honks their horn and your car, with its fancy apps and sensors, displays the horn sound as 760Hz. Your Tesla also registers the car as a Ferrari with a car horn of 795Hz. You are stopped at a stop light when their horn blares. Another of your Tesla's apps measures the air temperature to be 26°C. a) What is the speed...
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