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Tamiku [17]
3 years ago
10

The A note has a frequency of 440 Hz. What is the wavelength if the speed of sound is 343 m/s?

Physics
2 answers:
Nina [5.8K]3 years ago
7 0
The wavelength of a wave (λ) is given by λ= \frac{c}{f}
where c is the wave speed and f is the frequency
stepladder [879]3 years ago
3 0
Your answer should be 0.78m. Hope this helps!
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3 years ago
Two children are riding on a merry-go-round that is rotating with a constant angular speed. Abbie is one meter from the center o
Ainat [17]

Answer:

  • <em>Abbie’s acceleration is (1/2) Zak’s acceleration.</em>

Explanation

1. <u>Data</u>:

a) ω = constant

b) Abbie: r₁ = 1 m

c) Zak: r₂ = 2 m

d) Ac₁ = ? Ac₂

2. <u>Formulae</u>

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3. <u>Solution</u>:

a) Abbie:

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b) Zack:

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c) Divide Ac₁ / Ac₂

  • Ac₁ / Ac₂ =  ω² (1m) / [ω² (2m) ] = 1/2

⇒      Ac₁ = (1/2) Ac₂ = Ac₂ / 2 = 0.5 Ac₂

5 0
3 years ago
How does hydroelectric energy work
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MrRa [10]
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E = \frac 1 2 m v^2 = \frac 1 2 (2)(5)^2 = 25 joules
 
8 0
3 years ago
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