Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 23, Problem 59SP
Two cars are heading straight at each other with the same speed. The horn of one
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A source of sound of frequency 1200 Hz is moving away from a listener at speed v. The listener is at rest and hears a frequency of 1150 Hz. Given that the speed of sound is 343 m/s, what the value of v?
15 m/s
20 m/s
25 m/s
30 m/s
35 m/s
What frequency of sound is observed if the 444 Hz source is traveling away from a stationary observer at a speed of 30.2 m/s? (assume the speed of sound in air is 343 m/s)
An air controller on an aircraft carrier sees a jet fly over 81 meters above her and she hears the sonic boom when the jet is140 meters past her. What is the speed of the jet if the speed of sound is 344 m/s?Group of answer choices
(81/140)*344 m/s
(140/344)*81 m/s
(140/81)*344 m/s
Chapter 23 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 23 - 22. Three seconds after a gun is fired, the person...Ch. 23 - 23. What is the speed of sound in air when the air...Ch. 23 - 24. A longitudinal wave with a frequency of 100 Hz...Ch. 23 - 25. If the speed of sound in air is found to be...Ch. 23 - 26. An autofocusing camera sends out a pulse of...Ch. 23 - 27. It’s often claimed that for every second of...Ch. 23 - 28. A shell fired at a target 800 m away was heard...Ch. 23 - 29. In an experiment to determine the speed of...Ch. 23 - 23.30 [II] A disk has 40 holes around its...Ch. 23 - 23.31 [I] The bulk modulus of seawater is 2.1 GPa....
Ch. 23 - 32. Use Eq. (23.2) to determine the approximate...Ch. 23 - 33. Compute the speed of sound in helium gas at...Ch. 23 - 23.34 [II] Determine the speed of sound in carbon...Ch. 23 - 23.35 [II] Compute the molecular mass M of a gas...Ch. 23 - 23.36 [II] At S.T.P., the speed of sound in air is...Ch. 23 - Prob. 37SPCh. 23 - 23.38 [II] A bar of dimensions and mass 2.00 kg...Ch. 23 - 39. Find the speed of compression waves in a metal...Ch. 23 - Prob. 40SPCh. 23 - 23.41 [I] The level of normal speech exchanged...Ch. 23 - 42. The threshold of human hearing is an intensity...Ch. 23 - 23.43 [II] A machine produces a sound level of 80...Ch. 23 - 44. Suppose the intensity of sound increases by a...Ch. 23 - 45. If the intensity level of sound is to be...Ch. 23 - 46. Suppose we add ±3.0 dB to the intensity level...Ch. 23 - 23.47 [I] If the intensity of sound changes, the...Ch. 23 - 23.48 [I] Redo Problem 23.45 using Eq. (23.9).
Ch. 23 - 49. A sound has an intensity of 5.0 × 10−7 W/m2....Ch. 23 - 50. A person riding a power mower may be subjected...Ch. 23 - 23.51 [II] A rock band might easily produce a...Ch. 23 - 23.52 [II] A whisper has an intensity level of...Ch. 23 - 23.53 [II] What sound intensity is 3.0 dB louder...Ch. 23 - 23.54 [II] Calculate the intensity of a sound wave...Ch. 23 - 23.55 [II] What is the amplitude of vibration in a...Ch. 23 - 23.56 [II] One sound has an intensity level of...Ch. 23 - 23.57 [II] An organ pipe is tuned to emit a...Ch. 23 - 23.58 [I] A locomotive moving at 30.0 m/s...Ch. 23 - 23.59 [II] Two cars are heading straight at each...Ch. 23 - 23.60 [II] To determine the speed of a harmonic...Ch. 23 - 23.62 [II] The two sources shown in Fig. 23-4 emit...
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- On a particular day the speed of sound in air is 340 m/s. If a plane flies at a speed of 680 m/s, is its Mach number (a) 1.5, (b) 2.0, (c) 2.5, or (d) 2.7?arrow_forwardA sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.arrow_forwardA sound wave can be characterized as (a) a transverse wave, (b) a longitudinal wave, (c) a transverse wave or a longitudinal wave, depending on the nature of its source, (d) one that carries no energy, or (e) a wave that does not require a medium to be transmitted from one place to the other.arrow_forward
- Female Aedes aegypti mosquitoes emit a buzz at about 4.00102 Hz, whereas male A. aegypti mosquitoes typically emit a buzz at about 6.00102 Hz. As a female mosquito is approaching a stationary male mosquito, is it possible that he mistakes the female for a male because of the Doppler shift of the sound she emits? How fast would the female have to be traveling relative to the male for him to make this mistake? Assume the speed of sound in the air is 343 m/s.arrow_forwardA flute has a length of 58.0 cm. If the speed of sound in air is 343 m/s, what is the fundamental frequency of the flute, assuming it is a tube closed at one end and open at the other? (a) 148 Hz (b) 296 Hz (c) 444 Hz (d) 591 Hz (e) none of those answersarrow_forwardA flowerpot is knocked off a window ledge from a height d = 20.0 m above the sidewalk as shown in Figure P17.13. lt falls toward an unsuspecting man of height h = 1.75 m who is standing below. Assume the man requires a time interval of t = 0.300 s to respond to the warning. How close to the sidewalk can the flowerpot fall before it is too late for a warning shouted from the balcony to reach the main in time?arrow_forward
- An air controller on an aircraft carrier sees a jet fly over 81 meters above her and she hears the sonic boom when the jet is140 meters past her. What is the speed of the jet if the speed of sound is 344 m/s?Group of answer choices (81/140)*344 m/s none of these. (140/344)*81 m/s (140/81)*344 m/sarrow_forwardtwo train A and B in opposite direction are travelling toward each other at a speed of 45 km/hr and 65 km/h respectively. If train A is blowing its horn, what is the relative pitch heard by a passenger in train B, velocity of sound being 344 m/sec? make an illustration.arrow_forwardYou are driving along a highway at 32 m/s when you hear the siren of an emergency vehicle traveling in the opposite direction on the other side of the highway. When the vehicle is approaching you, you hear the frequency of the siren as 2300 Hz, but when it is past you the frequency becomes 1600 Hz. What is the speed of the vehicle? The speed of sound in air is 343 m/s.arrow_forward
- What frequency is received by a person watching an oncoming ambulance moving at 100 km/h and emitting a steady 800-Hz sound from its siren? The speed of sound on this day is 700 m/s.arrow_forwardA person is sitting in a bus driving at voa=58.0000 km/h . There is an ambulance coming from the opposite direction. The ambulance's speed is vsa=1.1400×102 km/h . The ambulance's siren emits a sound with frequency of fsa=430 Hz .a) Which frequency does the person sitting in the bus hear?arrow_forwardA sound source emits an audible frequency of 512 Hz. Which would cause a greater Doppler shift in measured frequency at the observer? Group of answer choices a. The observer traveling toward a stationary source at 40 m/s. b. The source traveling toward the stationary observer at 40 m/s. c. The source and observer each traveling at 20 m/s toward each other. d. All of these will be the same shift in frequency.arrow_forward
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