What is the speed of sound in dry air at 0°C? A. 316 meters/second B. 331 meters/second C. 346 meters/second D. 373 meters/secon
2 answers:
Answer:
The speed of sound in dry air at 0°C is 331 meters/second
Explanation:
Sound wave is a longitudinal wave. The speed of sound depends on the density and compressibility of the medium. If the density of the medium is less, then it will have faster speed of sound and if the compressibility of the medium is high, it will have slower speed of sound.
It also depends on the temperature. At 20 degrees Celsius, the speed of sound is 343 m/s. At 25 degrees Celsius, its speed is 346 m/s and at 0 degrees Celsius, the speed of sound in dry air is 331.3 m/s
The formula is as follows :
T = 0°C
v = 331.3 m/s
or
v = 331 m/s
So, the correct option is (b) "331 meters/second".
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Explanation:
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where
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Therefore the net force must also be zero:
(1)
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F = 43 N
= angle of the force with the horizontal
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So the net force can be written as
(2)
Combining (1) and (2),
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