EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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ii)
The resultant intensity due to the destructive interference of two waves is 9 W/m2.
Evaluate the amplitude of each wave if the ratio of their amplitudes is 3/2.
(II) What frequency of sound would have a wavelength the same size as a 0.75-m-wide window? (The speed of sound is 344 m/s at 20°C.) What frequencies would diffract through the window?
1Two sources are in phase with one another and emit waves with a wavelength of 0.42 meters. Find outwhether the interference is constructive or destructive at sites with the following distances betweenthe two sources: (a) 0.84 and 0.42 m [2]; (b) 0.21 and 0.42 m[2]; (c) 1.26 and 0.42 m[2]; (d) 1.87 and1.45 m [2]; (e) 0.63 and 0.84 m [2]; and (f) 1.47 and 1.26 m [2]
Chapter 16 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 16.3 - If an increase of 3 dB means twice as intense,...Ch. 16.3 - Trumpet players. A trumpeter plays at a sound...Ch. 16.4 - Prob. 1CECh. 16.4 - Prob. 1EECh. 16.7 - Prob. 1FECh. 16.7 - How fast would a source have to approach an...Ch. 16 - What is the evidence that sound travels as a wave?Ch. 16 - What is the evidence that sound is a form of...Ch. 16 - Children sometimes play with a homemade telephone...Ch. 16 - When a sound wave passes from air into water, do...
Ch. 16 - What evidence can you give that the speed of sound...Ch. 16 - The voice of a person who has inhaled helium...Ch. 16 - Two tuning forks oscillate with the same...Ch. 16 - How will the air temperature in a room affect the...Ch. 16 - Explain how a lube might be used as a filler to...Ch. 16 - Prob. 10QCh. 16 - Prob. 11QCh. 16 - A noisy truck approaches you from behind a...Ch. 16 - Traditional methods of protecting the hearing of...Ch. 16 - In Fig. 16-15, if the frequency of the speakers is...Ch. 16 - Prob. 15QCh. 16 - Consider the two waves shown in Fig. 1630. Each...Ch. 16 - Is there a Doppler shift if the source and...Ch. 16 - If a wind is blowing, will this alter the...Ch. 16 - Figure 1631 shows various positions of a child on...Ch. 16 - Prob. 1MCQCh. 16 - Prob. 2MCQCh. 16 - Prob. 3MCQCh. 16 - Prob. 4MCQCh. 16 - Prob. 5MCQCh. 16 - Prob. 6MCQCh. 16 - Prob. 7MCQCh. 16 - Prob. 8MCQCh. 16 - Prob. 9MCQCh. 16 - Prob. 10MCQCh. 16 - Prob. 11MCQCh. 16 - Prob. 12MCQCh. 16 - Prob. 13MCQCh. 16 - Prob. 14MCQCh. 16 - Prob. 1PCh. 16 - Prob. 2PCh. 16 - Prob. 3PCh. 16 - Prob. 4PCh. 16 - Prob. 5PCh. 16 - Prob. 6PCh. 16 - Prob. 7PCh. 16 - Prob. 8PCh. 16 - (II) Write an expression that describes the...Ch. 16 - Prob. 10PCh. 16 - Prob. 11PCh. 16 - Prob. 12PCh. 16 - Prob. 13PCh. 16 - What is the intensity of a sound at the pain level...Ch. 16 - Prob. 15PCh. 16 - Prob. 16PCh. 16 - Prob. 17PCh. 16 - Prob. 18PCh. 16 - A fireworks shell explodes 100m above the ground,...Ch. 16 - Prob. 20PCh. 16 - Prob. 21PCh. 16 - Prob. 22PCh. 16 - Prob. 23PCh. 16 - Prob. 24PCh. 16 - Prob. 25PCh. 16 - Prob. 26PCh. 16 - Prob. 27PCh. 16 - Prob. 28PCh. 16 - Prob. 29PCh. 16 - Prob. 30PCh. 16 - Prob. 31PCh. 16 - Prob. 32PCh. 16 - Prob. 33PCh. 16 - Prob. 34PCh. 16 - Prob. 35PCh. 16 - Prob. 36PCh. 16 - Prob. 37PCh. 16 - (II) A particular organ pipe can resonate at 264...Ch. 16 - Prob. 39PCh. 16 - Prob. 40PCh. 16 - Prob. 41PCh. 16 - Prob. 42PCh. 16 - Prob. 43PCh. 16 - The human car canal is approximately 2.5 cm long....Ch. 16 - Prob. 45PCh. 16 - (II) Approximately what are the intensities of the...Ch. 16 - Prob. 47PCh. 16 - Prob. 48PCh. 16 - Prob. 49PCh. 16 - What is the beat frequency if middle C (262 Hz)...Ch. 16 - Prob. 51PCh. 16 - (II) The two sources of sound in Fig. 1615 face...Ch. 16 - Prob. 53PCh. 16 - Prob. 54PCh. 16 - Prob. 55PCh. 16 - Prob. 56PCh. 16 - Prob. 57PCh. 16 - Prob. 58PCh. 16 - Prob. 59PCh. 16 - Prob. 60PCh. 16 - Prob. 61PCh. 16 - Prob. 62PCh. 16 - Prob. 63PCh. 16 - Prob. 64PCh. 16 - Prob. 65PCh. 16 - Prob. 66PCh. 16 - Prob. 67PCh. 16 - Prob. 68PCh. 16 - Prob. 69PCh. 16 - Prob. 70PCh. 16 - Show that the angle a sonic boom makes with the...Ch. 16 - Prob. 72PCh. 16 - Prob. 73GPCh. 16 - Prob. 74GPCh. 16 - Prob. 75GPCh. 16 - Prob. 76GPCh. 16 - Prob. 77GPCh. 16 - Prob. 78GPCh. 16 - Prob. 79GPCh. 16 - Prob. 80GPCh. 16 - Prob. 81GPCh. 16 - Prob. 82GPCh. 16 - Prob. 83GPCh. 16 - Prob. 84GPCh. 16 - Prob. 85GPCh. 16 - Prob. 86GPCh. 16 - Prob. 87GPCh. 16 - Prob. 88GPCh. 16 - Prob. 89GPCh. 16 - Prob. 90GPCh. 16 - Prob. 91GPCh. 16 - Prob. 92GPCh. 16 - Prob. 93GPCh. 16 - Prob. 94GPCh. 16 - Prob. 95GPCh. 16 - Prob. 96GPCh. 16 - Prob. 97GPCh. 16 - Prob. 98GPCh. 16 - Prob. 99GPCh. 16 - Prob. 100GPCh. 16 - Prob. 101GPCh. 16 - Prob. 102GPCh. 16 - Prob. 103GPCh. 16 - Prob. 104GP
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- Check Your Understanding Going further with Example 3.4, what are the next two thicknesses of soap bubble that would lead to (a) constructive interference, and (b) destructive interference?arrow_forwardSound is more effectively transmitted into a stethoscope by direct contact rather than through the air, and it is further intensified by being concentrated on the smaller area of the eardrum. It is reasonable to assume that sound is transmitted into a stethoscope 100 times as effectively compared with transmission though the air. What, then, is the gain in decibels produced by a stethoscope that has a sound gathering area of 15.0 cm2, and concentrates the sound onto two eardrums with a total area of 0.900 cm2 with an efficiency of 40.0% ?arrow_forwardThe no of wave in 6cm of vacuum is same as that of no of wave in xcm of the medium is 3/2, find the value of x.arrow_forward
- (a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength? (b) Which substance is this likely to be?arrow_forwardTwo loudspeakers are 1.70 mm apart. A person stands 3.00 mm from one speaker and 3.70 mm from the other. What is the lowest frequency at which destructive interference will occur at this point if the speakers are in phase? Calculate two other frequencies that also result in destructive interference at this point (give the next two highest). Let T= 20 ∘Carrow_forward(a) If the speaker is at its lowest frequency (f= 2,000 Hz) that produces destructive interference at the location of the microphone, what is the path length difference AL (in m) between the direct and the reflected sound waves that reach the microphone? toarrow_forward
- If two waves are not coherent, then it obtained (a) Steady interference (b) No interference · (c) Diffused interference (d) Diminished interferencearrow_forward(b) Consider the speaker set-up in the previous question. Each speaker emits a frequency of 6.6 102 Hz in phase with the other. The listener is seated directly in front of one speaker, 1.6 m away. The speakers are 2.4 m away from each other. How many extra wavelengths are needed for sound to get from speaker 2 to the listener? Take the speed of sound in air to be 3.4 102 m/s. Extra wavelengths |x,-x2|/A:| (c) What kind of interference, if any, does the listener in the previous question experience? There is not enough information to tell Destructive interference Constructive interference No interferencearrow_forwarde represented by Eql 2. (II) Suppose two linear waves of equal amplitude and frequency have a phase difference o as they travel in the same medium. They can be represented by D = A sin(kx – wt) %3D D = A sin(kx – wt + ). bns 1oisllineo %3D sin 01 + sin 02 = (a) Use the trigonometric identity 2 sin (0, + 02) cos (0, – 02) to show that the resultant wave is given by %3D CoS (24 o sin kx- 2) D = (2A cos wt + %3D (b) What is the amplitude of this resultant wave? Is the wave purely sinusoidal, or not? (c) Show that constructive interfer- ence occurs if = 0, 2, 4T, and so on, and destructive interference occurs if o = T, 3T, 5T, etc. (d) Describe the resultant wave, by equation and in words, if o = T/2. %3D %3Darrow_forward
- Two waves of the same frequency have amplitudes 1.38 and 2.85. They interfere at a point where their phase difference is 54.0°. What is the resultant amplitude?arrow_forward1)Two loudspeakers, placed on opposite walls of a 10m long room, emit pure sine waves at f= 170 Hz coherently. If we were exactly in the middle of the room, where the interference of waves is constructive, what is the shortest distance we should travel towards one of the speakers so that the waves cancel out completely?" Assume that the speed of sound at air is 340 m/s.arrow_forwardA speaker has a diameter of 0.30 m. (a) Assuming that the speed of sound is 343 m/s, find the diffraction angle u for a 2.0-kHz tone. (b) What speaker diameter D should be used to generate a 6.0-kHz tone whose diffraction angle is as wide as that for the 2.0-kHz tone in part (a)?arrow_forward
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