56. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if the observer increases their distance to 1000 meters.A. 160 dBB. 77 dBC. 40 dBD. 60 dB D.2.45 х 10-856. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if theobserver increases their distance to 1000 meters.A160 dBВ.77 dBС.40 dBD.60 dB57. What frequency does a stationary observer hear when a sound source oscillating at 515 Hz andmoving 10 m/s is approaching the observer? The velocity of sound is 340 m/s.A515 HzВ.505 HzPage 17 / 18Q + В.5.01 x 10 -4С.1.01 x 10-6D.2.45 x 10-856. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if theobserver increases their distance to 1000 meters.A160 dBВ.77 dBС.40 dBD.60 dB57. What frequency does a stationary observer hear when a sound source oscillating at 515 Hz andmoving 10 m/s is approaching the observer? The velocity of sound is 340 m/s.

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Answered: 56. The intensity of a speaker is 80 dB…

56. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if the observer increases their distance to 1000 meters. A. 160 dB B. 77 dB C. 40 dB D. 60 dB

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter16: Waves

Section: Chapter Questions

Problem 122AP: A tuning fork vibrates producing sound at a frequency of 512 Hz. The speed of sound of sound in air...

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Concept explainers

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.

Question

56. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if the observer increases their distance to 1000 meters.

A. 160 dB
B. 77 dB
C. 40 dB
D. 60 dB

D.
2.45 х 10-8
56. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if the
observer increases their distance to 1000 meters.
A
160 dB
В.
77 dB
С.
40 dB
D.
60 dB
57. What frequency does a stationary observer hear when a sound source oscillating at 515 Hz and
moving 10 m/s is approaching the observer? The velocity of sound is 340 m/s.
A
515 Hz
В.
505 Hz
Page 17 / 18
Q +

В.
5.01 x 10 -4
С.
1.01 x 10-6
D.
2.45 x 10-8
56. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if the
observer increases their distance to 1000 meters.
A
160 dB
В.
77 dB
С.
40 dB
D.
60 dB
57. What frequency does a stationary observer hear when a sound source oscillating at 515 Hz and
moving 10 m/s is approaching the observer? The velocity of sound is 340 m/s.

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