Velocity of sound in air is ___________ a) Faster in dry air than in moist air b) Directly proportional to temperature c) Directly proportional to pressure d) Slower in dry air than in moist ai
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Q: 6) A "bang" is heard in the form of an echo. If the flat surface from the reflected sound is 300-m…
A: Solution: as given that flat surface from source =300 m distacne between soruce and you =150 m
Q: * The frequency of the sound audible to the :human ear a-0-20 HZ b-20-400HZ c-20-20000HZ d-20-1000HZ…
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Q: Q14/The intensity in w/m? of a sound level of 60db is-- - knowing that the threshold of hearing =…
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Q: A plane travels at an atmosphere of 3°C, plane must exceed a velocity of in order to break the sound…
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Q: The speed sound in air depends on the of the air. wavelength temperature frequency amplitude
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Q: The noise a lawn mower produces is 80 dB. How much noise is from 12 identical lawn mowers?
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Velocity of sound in air is ___________
a) Faster in dry air than in moist air
b) Directly proportional to temperature
c) Directly proportional to pressure
d) Slower in dry air than in moist ai
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