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Natali [406]
3 years ago
7

A sound wave has a frequency of 247 Hz and a wavelength of 1.4 m. What is the speed of the sound wave in air?

Physics
1 answer:
zavuch27 [327]3 years ago
5 0
The speed of sound through air at room temperature is almost always 343 m/s. However, since it doesn't tell you that, use the equation wavelength=velocity/frequency. Plug in the numbers: 1.4=v/247, and v=345.8 m/s. 
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Frequency division multiplexing operates by dividing the signal into different frequencies

<u>Explanation:</u>

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Answer:

2.61 atm

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P_1 = Presión inicial = 0.96 atm

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En este problema usaremos la ley de Boyle.

\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\Rightarrow P_2=\dfrac{P_1V_1}{V_2}\\\Rightarrow P_2=\dfrac{0.96\times 95}{35}\\\Rightarrow P_1=2.61\ \text{atm}

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2 years ago
The space shuttle fleet was designed with two booster stages. If the second stage provides a thrust of 73 ​kilo-newtons and the
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Answer:

m = 81281.5 pounds.

Explanation:

Given that,

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Hence, the mass of the spacecraft is 81281.5 pounds.

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