PHYSICS F./SCI... W/MOD V.II W/KIT
4th Edition
ISBN: 9780134819884
Author: GIANCOLI
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 16, Problem 83GP
A stereo amplifier is rated at 175 W output at 1000 Hz. The power output drops by 12 dB at 15 kHz. What is the power output in watts at 15 kHz?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A stereo amplifier is rated at 225 W output at 1000 Hz. The power output drops by 12 dB at 15 kHz. What is the power output in watts at 15 kHz?
A microphone delivers 36 mW to the 300 ohm input of an amplifier. The maximum power for a 16 ohm speaker system is 15 W. How many decibels does the amplifier gain?a)36.9 dBb)42.5 dBc)65.4 dBd)52.8 dBe) 75 dB
The howler monkey is the loudest land animal and can be heard up to a distance of 4.9 km. Assume the acoustic output of a howler to be uniform in all directions. The acoustic power emitted by the howler, in mW, is closest to:
Chapter 16 Solutions
PHYSICS F./SCI... W/MOD V.II W/KIT
Ch. 16.1 - Prob. 1AECh. 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 - Two strings have the same length and tension, but...Ch. 16.7 - Prob. 1GECh. 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 - What is the main reason the speed of sound in...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. 11QCh. 16 - A noisy truck approaches you from behind a...Ch. 16 - Standing waves can he said to be due to...Ch. 16 - In Fig. 16-15, if the frequency of the speakers is...Ch. 16 - Traditional methods of protecting the hearing of...Ch. 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 - Approximately how many octaves are there in the...Ch. 16 - At a race track, you can estimate the speed of...Ch. 16 - (I) A hiker determines the length of a lake by...Ch. 16 - Prob. 2PCh. 16 - (I) (a) Calculate the wavelengths in air at 20C...Ch. 16 - (I) On a warm summer day (27C), it takes 4.70 s...Ch. 16 - (II) A motion sensor can accurately measure the...Ch. 16 - Prob. 6PCh. 16 - A stone is dropped from the top of a cliff. The...Ch. 16 - A person, with his ear to the ground, sees a huge...Ch. 16 - Prob. 9PCh. 16 - (I) The pressure amplitude of a sound wave in air...Ch. 16 - (I) What must be the pressure amplitude in a sound...Ch. 16 - (II) Write an expression that describes the...Ch. 16 - (II) The pressure variation in a sound wave is...Ch. 16 - What is the intensity of a sound at the pain level...Ch. 16 - (I) What is the sound level of a sound whose...Ch. 16 - (I) What are the lowest and highest frequencies...Ch. 16 - (II) Your auditory system can accommodate a huge...Ch. 16 - (II) You are trying to decide between two new...Ch. 16 - (II) At a painfully loud concert, a 120-dB sound...Ch. 16 - (II) If two firecrackers produce a sound level of...Ch. 16 - A person standing a certain distance from an...Ch. 16 - (II) A cassette player is said to have a...Ch. 16 - (II) (a) Estimate the power output of sound from a...Ch. 16 - (II) A 50-dB sound wave strikes an eardrum whose...Ch. 16 - Expensive amplifier A is rated at 250 W, while the...Ch. 16 - (II) At a rock concert, a dB meter registered...Ch. 16 - A fireworks shell explodes 100m above the ground,...Ch. 16 - If the amplitude of a sound wave is made 2.5 times...Ch. 16 - Two sound waves have equal displacement...Ch. 16 - What would be the sound level (in dB) of a sound...Ch. 16 - (a) Calculate the maximum displacement of air...Ch. 16 - A jet plane emits 5.0 105 J of sound energy per...Ch. 16 - What would you estimate for the length of a bass...Ch. 16 - The A string on a violin has a fundamental...Ch. 16 - An organ pipe is 124 cm long. Determine the...Ch. 16 - (a) What resonant frequency would you expect from,...Ch. 16 - Prob. 37PCh. 16 - Prob. 38PCh. 16 - An unfingered guitar string is 0.73m long and is...Ch. 16 - (II) (a) Determine the length of an open organ...Ch. 16 - Prob. 41PCh. 16 - Prob. 42PCh. 16 - Prob. 43PCh. 16 - (II) A particular organ pipe can resonate at 264...Ch. 16 - A uniform narrow tube 1.80m long is open at both...Ch. 16 - (II) A pipe in air at 23.0C is to be designed to...Ch. 16 - How many overtones are present within the audible...Ch. 16 - Prob. 49PCh. 16 - (II) In a quartz oscillator, used as a stable...Ch. 16 - The human car canal is approximately 2.5 cm long....Ch. 16 - (II) Approximately what are the intensities of the...Ch. 16 - A piano tuner hears one beat every 2.0s when...Ch. 16 - What is the beat frequency if middle C (262 Hz)...Ch. 16 - A guitar string produces 4 beats/s when sounded...Ch. 16 - (II) The two sources of sound in Fig. 1615 face...Ch. 16 - Prob. 57PCh. 16 - (II) Two loudspeakers are placed 3.00 m apart, as...Ch. 16 - Two piano strings are supposed to be vibrating at...Ch. 16 - A source emits sound of wavelengths 2.64 m and...Ch. 16 - (I)The predominant frequency of a certain fire...Ch. 16 - A bat at rest sends out ultrasonic sound waves at...Ch. 16 - (II) (a) Compare the shift in frequency if a...Ch. 16 - Two automobiles are equipped with the same single...Ch. 16 - A police car sounding a siren with a frequency of...Ch. 16 - (II) A bat flies toward a wall at a speed of 7.0...Ch. 16 - In one of the original Doppler experiments, a tuba...Ch. 16 - (II) If a speaker mounted on an automobile...Ch. 16 - A wave on the surface of the ocean with wavelength...Ch. 16 - A factory whistle emits sound of frequency 720 Hz....Ch. 16 - The Doppler effect using ultrasonic waves of...Ch. 16 - (II) An airplane travels at Mach 2.0 where the...Ch. 16 - A space probe enters the thin atmosphere of a...Ch. 16 - A meteorite traveling 8800 m/s strikes the ocean....Ch. 16 - Show that the angle a sonic boom makes with the...Ch. 16 - Prob. 76PCh. 16 - (II) A supersonic jet traveling at Mach 2.2 at an...Ch. 16 - A fish finder uses a sonar device that sends...Ch. 16 - A science museum has a display called a sewer pipe...Ch. 16 - A single mosquito 5.0 m from a person makes a...Ch. 16 - What is the resultant sound level when an 82-dB...Ch. 16 - The sound level 9.00 m from a loudspeaker, placed...Ch. 16 - A stereo amplifier is rated at 175 W output at...Ch. 16 - Workers around jet aircraft typically wear...Ch. 16 - In audio and communications systems, the gain, ,...Ch. 16 - For large concerts, loudspeakers are sometimes...Ch. 16 - Manufacturers typically offer a particular guitar...Ch. 16 - The high-E string on a guitar is fixed at both...Ch. 16 - Prob. 89GPCh. 16 - Prob. 90GPCh. 16 - Two identical tubes, each closed at one end, have...Ch. 16 - Prob. 92GPCh. 16 - The diameter D of a tube does affect the node at...Ch. 16 - A person hears a pure tone in the 500 to 1000-Hz...Ch. 16 - The frequency of a steam train whistle as it...Ch. 16 - Two trains emit 516-Hz whistles. One train is...Ch. 16 - Two loudspeakers are at opposite ends of a...Ch. 16 - Two open organ pipes, sounding together, produce a...Ch. 16 - A bat flies toward a moth at speed 7.5 m/s while...Ch. 16 - If the velocity of blood flow in the aorta is...Ch. 16 - A bat emits a series of high-frequency sound...Ch. 16 - Prob. 102GPCh. 16 - Two loudspeakers face each other at opposite ends...Ch. 16 - Prob. 104GPCh. 16 - The wake of a speedboat is 15 in a lake where the...Ch. 16 - Prob. 106GPCh. 16 - Prob. 107GPCh. 16 - Prob. 108GP
Additional Science Textbook Solutions
Find more solutions based on key concepts
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
Star B has an apparent magnitude of 0, which tells us how bright it appears from Earth at its true location. St...
Lecture- Tutorials for Introductory Astronomy
Choose the best answer to each of the following Explain your reasoning. A habitable world is a world that (a) h...
Cosmic Perspective Fundamentals
Suppose we found an organism on Earth with the characteristics described. In light of our current understanding...
Life in the Universe (4th Edition)
Q27.4 The magnetic force on a moving charged particle is always perpendicular to the magnetic field . Is the tr...
University Physics (14th Edition)
A parallel-plate capacitor is connected to a battery that imposes a potential difference V between its plates. ...
Essential University Physics (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A loud vacuum cleaner outputs 1.5 mW of sound energy. What is the intensity of the sound wave 2.0 meters away? (Give your answer in ?μW/m2.)arrow_forwardWhat is the minimum power required for a loudspeaker to produce 109 dB sound at a distance of 10.9 m in any direction?arrow_forwardThe speed of sound at 0°C in open air is 331.3m/sec. At what temperature would the wavelength of a 440Hz sound wave be 0.82meters.arrow_forward
- A whistle you use to call your hunting dog has a frequency of 42 kHz, but your dog is ignoring it. You suspect the whistle may not be working, but you can't hear sounds above 40 kHz. To test it, you ask a friend to blow the whistle, then you hop on your bicycle. At what minimum speed should you ride to know if the whistle is working?arrow_forwardThe electrical power needed to operate a speaker in your audio system is 18.7 W. If this speaker has a circular opening with a radius of 0.0743 m and the average sound intensity at the opening is 22.1 W/m2, determine the ratio of sound output power Psound to electrical input power Pelectrical. Psound Pelectricalarrow_forwardA large solar panel on a spacecraft in earth orbit produces 1.0 kW of power when the panel is turned toward the sun. What power would the solar cell produce if the spacecraft were in orbit around Saturn, 9.5 times as far from the sun?arrow_forward
- A loudspeaker on a tall pole broadcasts sound waves equally in all directions. What is the speaker’s power output if the sound intensity level is 109 dB at a distance of 23 m?arrow_forwardA sound wave at 80 dB has an intensity of 10^-4 W/m^2. How much, Power, in Watts, does that sound wave exert over a 10 m by 10 m square?arrow_forwardYou have a 91-W and a 73-W lightbulb that are identical in every other way. When you are at 10.3 m from the second bulb, you notice that both light bulbs produce the same intensity. How far are you, in meters, from the first lightbulb?arrow_forward
- A speaker is producing spherically symmetric sounds with a total power of 88.5 W. If the speaker is located at the centre of a sphere with a radius of 2.20 m, what is the power received on a 1.70 m by 1.50 m area on the sphere? Give your answer in Watts to 2 decimal places.arrow_forwardThe range of frequencies used for medical applications includes 1,646,125 Hz. What is the wavelength of this frequency in air at a temperature of 20.0°? 2. 入= x 10 marrow_forwardA loudspeaker has a frequency of 1000Hz to 2000Hz. An open open pipe is near the loudspeaker. The pipe is 45.7cm in length and the speed of sound is 344m/s. What are the frequencies in the range above that are in resonance?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
What Are Sound Wave Properties? | Physics in Motion; Author: GPB Education;https://www.youtube.com/watch?v=GW6_U553sK8;License: Standard YouTube License, CC-BY