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nekit [7.7K]
3 years ago
11

PLEASE HELP ME ASAP!!!!! MARK U AS BRAINLEST!

Physics
2 answers:
zmey [24]3 years ago
8 0
D) both air temperature and medium
LenKa [72]3 years ago
6 0

The speed of a sound wave depends on C) The air temperature

Hope I helped you :)

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Water flows through a 4.50-cm inside diameter pipe with a speed of 12.5 m/s. At a later position, the pipe has a 6.25-cm inside
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Given,

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From the continuity equation,

\begin{gathered} A_1v_1=A_2v_2 \\ \pi(\frac{d_1}{2})^2v_1=\pi(\frac{d_2}{2})^2v_2 \\ \Rightarrow d^2_1v_1=d^2_2v_2 \end{gathered}

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On substituting the known values,

\begin{gathered} 0.045^2\times12.5=0.065^2\times v_2 \\ \Rightarrow v_2=\frac{0.045^2\times12.5}{0.065^2} \\ =5.99\text{ m/s} \end{gathered}

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