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marusya05 [52]
3 years ago
14

The most soaring vocal melody is in Johann Sebastian Bach's Mass in B minor. In one section, the basses, tenors, altos, and sopr

anos carry the melody from a low D to a high A. In concert pitch, these notes are now assigned frequencies of 146.8 Hz and 880.0 Hz. (Use 343 m/s as the speed of sound, and 1.20 kg/m3 as the density of air.)
Find the wavelength of the initial note.
Physics
1 answer:
solmaris [256]3 years ago
3 0

Answer:

2.33651226158 m

Explanation:

From the question the required data is as follows

f = Frequency of the initial note = 146.8 Hz

v = Velocity of sound in air = 343 m/s

The wavelength of a wave is given by

\lambda=\dfrac{v}{f}

\Rightarrow \lambda=\dfrac{343}{146.8}

\Rightarrow \lambda=2.33651226158\ m

The wavelength of the initial note is 2.33651226158 m

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6.3445×10⁻¹⁶ m

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W ≅ 292.97 J

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