Help me for 4question 7. At what temperature, the speed of sound in air will becomes double of its value at 27°C?С. 327°СA. 27°CB. 54 °CD. 927°C_8. The first overtone of a stretched wire of a given length is 320 Hz. The first harmonic isD. 160 HzA. 640 HzB. 480 HzC. 320 Hz_9. An aircraft is moving away from you at half the speed of sound, which, on that day is about 340m/s. The jet engines make a sound that is primarily about 300 Hz. What is the apparent frequency of thejet engines?A. 150 HzB. 200 HzC. 470 HzD. 600 Hz_10. What is the frequency heard by a stationary observer when a train approaches with a speed of30m/s? The frequency of the train horn is 600 Hz and the speed of sound is 340 m/sA. 570 HzВ. 630 HzC. 653 HzD. 658 Hz

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Answered: 7. At what temperature, the speed of…

7. At what temperature, the speed of sound in air will becomes double of its value at 27°C? A. 27°C B. 54 °C C. 327°C D. 927°C

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 86P: A 512-Hz tuning fork is struck and placed next to a tube with a movable piston, creating a tube with...

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Concept explainers

Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.

Question

Help me for 4question

7. At what temperature, the speed of sound in air will becomes double of its value at 27°C?
С. 327°С
A. 27°C
B. 54 °C
D. 927°C
_8. The first overtone of a stretched wire of a given length is 320 Hz. The first harmonic is
D. 160 Hz
A. 640 Hz
B. 480 Hz
C. 320 Hz
_9. An aircraft is moving away from you at half the speed of sound, which, on that day is about 340
m/s. The jet engines make a sound that is primarily about 300 Hz. What is the apparent frequency of the
jet engines?
A. 150 Hz
B. 200 Hz
C. 470 Hz
D. 600 Hz
_10. What is the frequency heard by a stationary observer when a train approaches with a speed of
30m/s? The frequency of the train horn is 600 Hz and the speed of sound is 340 m/s
A. 570 Hz
В. 630 Hz
C. 653 Hz
D. 658 Hz

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