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Reflection, Transmission, Absorption

Problems

practice

Write something.
Write something else.
Write something different.
Write something completely different.

numerical

A sound wave traveling through air at STP has a frequency of 1000 Hz.
1. What is its period?
2. What frequency would this same wave have in water (speed of sound in water, 1500 m/s)?
3. What frequency would this same wave have in steel (speed of sound in steel, 5000 m/s)?

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