# A student attaches a f = 3.5 kHz oscillator to one end of a metal rail of length L = 19 m. The student turns on the oscillator and uses a piezoelectric gauge at the other end to measure that the resulting sound wave takes t = 0.0062 s to travel the length of the rail.What is the speed of the wave in the rail, in meters per second?

Question
Asked Dec 6, 2019
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A student attaches a f = 3.5 kHz oscillator to one end of a metal rail of length L = 19 m. The student turns on the oscillator and uses a piezoelectric gauge at the other end to measure that the resulting sound wave takes t = 0.0062 s to travel the length of the rail.

What is the speed of the wave in the rail, in meters per second?

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Step 1

Given information:

The length of the rail (l) = 19 m

Time taken to by so...

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