**a.**

The period is expressed as the inverse of frequency.

T = 1/f

An expression for the period of the waves in the rail is **T = ****1/f**.

A student attaches a f = 3.5 kHz oscillator to one end of a metal rail of length L = 25 m. The student turns on the oscillator and uses a piezoelectric gauge at the other end to measure that the resulting sound wave takes 0.0076 s to travel the length of the rail.

a. Input an expression for the period of the waves in the rail, in terms of the given quantities.

b. What is the period, in seconds? 25%

c. What is the speed of the wave in the rail, in meters per second? 25%

d. What is the wavelength of the wave within the rail, in meters? All content ® 2018 Expert TA, LLC

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Oscillation concept. You can view video lessons to learn Intro to Oscillation. Or if you need more Intro to Oscillation practice, you can also practice Intro to Oscillation practice problems.