A Ims.cisjubail.gov.sa* Question Completion Status:Od.333PAQUESTION 7A bell emits sound energv uniformly in all directions at a rate of 4.00 x 103 w. What is the intensity of thewave 100.0 m from the bell?O a.4x10-3 W/m2Ob.3.18x10-8W/m2Oc.1x10-6 W/m2Od.4x10-6 W/m2QUESTION 8Fully constructive interference between two sinusoidal waves of the same frequency occurs only if thedisplacements caused by the two pulses area. travel in the same direction and are in phaseb. travel in opposite directions and are in phaseOC. travel in the same direction and are 180 o out of phaseClick Save and Submit to save and submit. Click Save All Answers to save all answers.Sav

Given that, Sound Energy emitted radiated at rate that is power(P) = 4 × 10^(-3) W distance (d) =…

Answered: A bell emits sound energv uniformly in…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 83P: A 4.0-m-long pipe, open at one end and closed at one end, is in a room where the temperature is...

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(a) At an air show a jet flies directly toward the stands at a speed of 1200 km/h, emitting a frequency of 3500 Hz, on a day when the speed of sound is 342 m/s. What frequency is received by the observers? (b) What frequency do they receive as the plane flies directly away from them?
(a) Find the length of an organ pipe closed at one end that produces a fundamental frequency of 256 Hz when air temperature is 18.0°C. (b) What is its fundamental frequency at 25.0°C?
An outside loudspeaker (considered a small source) emits sound waves with a power output of 100 W. (a) Find the intensity 10.0 m from the source. (b) Find the intensity level in decibels at that distance. (c) At what distance would you experience the sound at the threshold of pain, 120 dB?
What is the intensity in watts per meter squared of 85.0dB sound?
(a) What are the loudnesses in phons of sounds having frequencies of 200, 1000, 5000, and 10,000 Hz. if they are all at the same 60.0dB sound intensity level? (b) If may are all at 110 dB? (c) If they are all at 20.0 dB?
A community is concerned about a plan to bring train service to their downtown from the town’s outskirts. The current sound intensity level, even though the rail yard is blocks away, is 70 dB downtown. The mayor assures the public that there will be a difference of only 30 dB in sound in the downtown area. Should the townspeople be concerned? Why?
A 250-Hz tuning fork is struck and the intensity at the source is I1at a distance of one meter from the source. (a) What is the intensity at a distance of 4.00 m from the source? (b) How far from the tuning fork is the intensity a tenth of the intensity at the source?
Consider a diagnostic ultrasound of frequency 5.00 MHz that is used to examine an irregularity in soft tissue. (a) What is the wavelength in air of such a sound wave if the speed of sound is 343 m/s? (b) If the speed of sound in tissue is 1800 m/s, what is the wavelength of this wave in tissue?
To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1 800 Hz. A friend on the ground at the landing site directly below listens to the amplified sound he receives. Assume the air is calm and the speed of sound is independent of altitude. While the skydiver is falling at terminal speed, her friend on the ground receives waves of frequency 2 150 Hz. (a) What is the skydivers speed of descent? (b) What If? Suppose the skydiver can hear the sound of the buzzer reflected from the ground. What frequency does she receive?
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What frequency is received by a mouse just before being dispatched by a hawk flying at it at 25.0 m/s and emitting a screech of frequency 3500 Hz? Take the Speed of sound to be 331 m/s.
(a) What is the speed of sound in a medium where a 100-kHz frequency produces a 5.96-cm wavelength? (b) Which substance in Table 17.1 is this likely to be?

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A bell emits sound energv uniformly in all directions at a rate of 4.00 x 103 w. What is the intensity of the wave 100.0 m from the bell? 4x10 3 w/m2 Ob. 3.18x10-8w/m2 1x10-6 W/m2 Od. 4x10-6 W/m2