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If this entire wave train is 30 meters long what is the wavelength of this wave? MM Challenge Problems: (Show equation, work, final answer

If this entire wave train is 30 meters long what is the wavelength of this wave? MM Challenge Problems: (Show equation, work, final answer with correct units.) 1. What is the wavelength of a sound wave with a frequency of 50 Hz? (Speed of sound is 342 m/s) I 2. A sound wave in a steel rail has a frequency of 620 Hz and a wavelength of 10.5 m. What is the speed of sound in steel?

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