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Speed of waves

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A fisherman notices that wave crests pass the bow of his anchored boat every 4.0seconds. He measures the distance between two crests to be 9.0 m. How fast are the waves traveling?

**please explain this in the simplest, least confusing way....thank you so much :)

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Solution Summary

The solution calculates the speed of waves.

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Crest - highest point
Trough - lowest point
Wavelength (L) - horizontal distance between 2 crests or troughs.

Here ...

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