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dexar [7]
3 years ago
8

Why don't you hear a sound when you move your hand back and fourth through the air

Physics
2 answers:
kari74 [83]3 years ago
5 0
You can't move your hand fast enough, the lowest frequency sound is about 20 cycles per second, if you could move your hand that fast, you might hear sound.
inessss [21]3 years ago
3 0
Your hand is not capable of moving fast enough for sound to come out of it.
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Explanation:

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a = (V² - V₀²) / (2 d) = (2.5² - 1²) / (2 · 5) = (6.25 - 1) / 10 = 5.25 / 10

a = 0.525 m/s²

then we use this formula

V = V₀ + a t  => t = (V - V₀) / a = (2.5 - 1) / 0.525 = 1.5 / 0.525 = 2.86 seconds

t = 2.86 seconds

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