## anonymous one year ago A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency? 0.890 hertz 100 hertz 230 hertz 733 hertz

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1. Michele_Laino

the relationship between frequency $$f$$, wavelength $$\lambda$$ and speed $$v$$ is: $$\lambda \cdot f= v$$

2. Michele_Laino

so: $f = \frac{v}{\lambda } = \frac{{330}}{{0.450}} = ...?$

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