Principles of Physics: A Calculus-Based Text
5th Edition
ISBN: 9781133104261
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 13, Problem 59P
(a)
To determine
The frequency at which the driver detect the police car that passes him.
(b)
To determine
The change in frequency that makes the out of shape cyclist s speed drop to
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A boy is standing at a railroad crossing for a track that runs east and west. As he faces the track, east is to his right and west is to his left. Two trains on the track some distance apart are headed west, both at speeds of 8.20 m/s, and blowing their whistles (which have the same frequency). One train is approaching him from the east and the other is traveling away from him toward the west. (Assume the speed of sound is 343 m/s.)
(a)If he hears a beat frequency of 8.00 Hz, determine the frequency (in Hz) emitted by the two whistles.
(b)What If? What would be the frequency (in Hz) of the beats that he hears if the lead train stops at a station (and continues to blow its whistle) while the second train continues traveling toward him?
A train is moving parallel to a highway with a constant speed of 15.0 m/s. A car is traveling in thesame direction as the train with a speed of 20.0 m/s. The car horn sounds at a frequency of 480 Hz, and the train whistle sounds at a frequency of 330 Hz. (a) When the car is behind the train,what frequency does an occupant of the car observe for the train whistle? (b) After the carpasses and is in front of the train, what frequency does a train passenger observe for the carhorn?
A train is moving parallel and adjacent to a highway with a constant speed of 20.0 m/s. A car is
traveling in the same direction as the train at 40 m/s. The train's whistle sounds at 320 Hz. The speed of sound is
343 m/s. a) When the car is behind the train what frequency does an occupant of the car observe for the train
whistle? b) When the car is now in front of the train, what frequency does the car passenger hear?
Chapter 13 Solutions
Principles of Physics: A Calculus-Based Text
Ch. 13.1 - (i) In a long line of people waiting to buy...Ch. 13.2 - Prob. 13.2QQCh. 13.2 - The amplitude of a wave is doubled, with no other...Ch. 13.3 - Suppose you create a pulse by moving the free end...Ch. 13.5 - Prob. 13.5QQCh. 13.7 - Consider detectors of water waves at three...Ch. 13.7 - Prob. 13.7QQCh. 13 - Prob. 1OQCh. 13 - Prob. 2OQCh. 13 - Rank the waves represented by the following...
Ch. 13 - Prob. 4OQCh. 13 - When all the strings on a guitar (Fig. OQ13.5) are...Ch. 13 - By what factor would you have to multiply the...Ch. 13 - A sound wave can be characterized as (a) a...Ch. 13 - Prob. 8OQCh. 13 - Prob. 9OQCh. 13 - A source vibrating at constant frequency generates...Ch. 13 - A source of sound vibrates with constant...Ch. 13 - Prob. 12OQCh. 13 - Prob. 13OQCh. 13 - Prob. 14OQCh. 13 - As you travel down the highway in your car, an...Ch. 13 - Prob. 16OQCh. 13 - Suppose an observer and a source of sound are both...Ch. 13 - Prob. 1CQCh. 13 - Prob. 2CQCh. 13 - Prob. 3CQCh. 13 - Prob. 4CQCh. 13 - When a pulse travels on a taut string, does it...Ch. 13 - Prob. 6CQCh. 13 - Prob. 7CQCh. 13 - Prob. 8CQCh. 13 - Prob. 9CQCh. 13 - Prob. 10CQCh. 13 - Prob. 11CQCh. 13 - How can an object move with respect to an observer...Ch. 13 - Prob. 13CQCh. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - Prob. 3PCh. 13 - Prob. 4PCh. 13 - The string shown in Figure P13.5 is driven at a...Ch. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - A transverse wave on a string is described by the...Ch. 13 - Prob. 11PCh. 13 - Prob. 12PCh. 13 - Prob. 13PCh. 13 - A transverse sinusoidal wave on a string has a...Ch. 13 - A steel wire of length 30.0 m and a copper wire of...Ch. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Review. A light string with a mass per unit length...Ch. 13 - Prob. 19PCh. 13 - Prob. 20PCh. 13 - A series of pulses, each of amplitude 0.150 m, are...Ch. 13 - Prob. 22PCh. 13 - Prob. 23PCh. 13 - A taut rope has a mass of 0.180 kg and a length of...Ch. 13 - Prob. 25PCh. 13 - Prob. 26PCh. 13 - Prob. 27PCh. 13 - Prob. 28PCh. 13 - Prob. 29PCh. 13 - Prob. 30PCh. 13 - Write an expression that describes the pressure...Ch. 13 - Prob. 32PCh. 13 - Prob. 33PCh. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - A sound wave in air has a pressure amplitude equal...Ch. 13 - A rescue plane flies horizontally at a constant...Ch. 13 - A driver travels northbound on a highway at a...Ch. 13 - Prob. 40PCh. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - Prob. 43PCh. 13 - Prob. 44PCh. 13 - Review. A tuning fork vibrating at 512 Hz falls...Ch. 13 - Submarine A travels horizontally at 11.0 m/s...Ch. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 49PCh. 13 - Review. A block of mass M, supported by a string,...Ch. 13 - Prob. 51PCh. 13 - Review. A block of mass M hangs from a rubber...Ch. 13 - Prob. 53PCh. 13 - The wave is a particular type of pulse that can...Ch. 13 - Prob. 55PCh. 13 - Prob. 56PCh. 13 - Prob. 57PCh. 13 - Prob. 58PCh. 13 - Prob. 59PCh. 13 - Prob. 60PCh. 13 - Prob. 61PCh. 13 - Prob. 62PCh. 13 - Prob. 63PCh. 13 - Prob. 64PCh. 13 - Prob. 65PCh. 13 - Prob. 66PCh. 13 - Prob. 67PCh. 13 - A sound wave moves down a cylinder as in Active...Ch. 13 - A string on a musical instrument is held under...Ch. 13 - A train whistle (f = 400 Hz) sounds higher or...Ch. 13 - The Doppler equation presented in the text is...
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- an ambulance moving toward a person at 126 km/hr. The person is jogging towards the ambulance at 19 km/hr . The ambulance honks its horn, with a source frequency of 430Hz. To the left of the observer is a wall. The observer hears two sounds: the sound of the horn, and the echo of the horn that bounces off the wall. What beat frequency does the observer hear? (assume for this problem that the speed of sound is 340 m/s)arrow_forwardA train is moving parallel to a highway with a constant speed of 20 m/s. A car is traveling with a speed of 40.0 m/s. The car’s horn sound at a frequency of 510 Hz, and the train whistle sounds at a frequency of 320 Hz. When the car is behind the train, what frequency does an occupant of the car observe for the train whistle?arrow_forwardAn ambulance is traveling East at 20m/s. The siren emits a fixed frequency of 220Hz. Each of the following cars is traveling down the road as described. Rank the cars according to the frequency the driver will hear. How fast does it seem the ambulance is moving towards or away from each driver? a. A car driving West at a speed of 25m/s. The car has already passed the ambulance. b. A car driving East at a speed of 20m/s. The car is behind the ambulance. c. A car driving West at a speed of 15m/s. The car is moving towards the ambulance.arrow_forward
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