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tresset_1 [31]
3 years ago
7

A string of length 0.6 M is vibrating at 100 Hz and its second harmonic and producing sound that moves at 340 m/s. What is true

about the frequent or wavelength of this sound?
A) The wavelength of the sound is 0.6 m.

B) The frequency of the sound is 100 Hz.

C) The frequency of the sound is 567 Hz.

D) The wavelength of the sound is 0.9 m.
Physics
2 answers:
ivanzaharov [21]3 years ago
7 0

Answer:

B) The frequency of the sound is 100 Hz.

Explanation:

Frequency of the sound is always equal to the frequency of the source

So here we know that

length of the string is

L =0.6 m

Speed of the sound is

v = 340 m/s

frequency of the sound

f = 100 Hz

now the wavelength of the sound is given as

\lambda = \frac{v}{f}

\lambda = \frac{340}{100}

\lambda = 3.40 m

Cloud [144]3 years ago
6 0

Answer: the answer is B

Explanation: I just took the quiz :)

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Answer:

   f = 5.3 Hz

Explanation:

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        ∑ F = ma

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To solve this problem we create a change in the reference system, we place the zero at the equilibrium point

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we substitute

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this differential equation has a solution of type

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angular velocity and frequency are related

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we substitute

          4π² f² = ρ_liquid g π r² / m

          f = \frac{1}{2\pi } \ \sqrt{ \frac{ \rho_{liquid} \  \pi  r^2 \ g}{m } }

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anzhelika [568]

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here we also know that magnetic field B and plane of the coil is perpendicular in initial position

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so magnetic flux of the coil initially we have

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Where,

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g= Gravity

h = Height

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A_1 = 2.4*10^{-4} m^2

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4 0
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