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A mechanical oscillator attached to a long horizontal bar creates transverse water waves in a tank containing water 2.75 cm deep. A floating sensor in the tank measure the depth of the water as a function of time as the wave passes. A plot of the depth measurement versus time is shown below.

Water Wave

Water depth as a function of time as a wave passes. Created for Copyright 2016. All rights reserved.

What is the amplitude of the sinusoidal water waves?


0.5 m


3.0 m


2.5 m


0.25 m


1.375 m

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