Find the Speed of an Ocean Wave Whose Displacement Is $y = 3.7 \cos ( 2.2 x - 5.6 t )$

question 110

Multiple Choice

Find the speed of an ocean wave whose displacement is given by the equation $y = 3.7 \cos ( 2.2 x - 5.6 t )$ where x and y are in meters and t is in seconds.

• A)2.5 m/s
• B)1.9 m/s
• C)3.5 m/s
• D)4.5 m/s

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Definitions:

Dim Light

A level of illumination that is lower than what is considered bright, often creating a subdued or intimate atmosphere.

Human Retina

The light-sensitive layer at the back of the eye that contains cells (rods and cones) which convert light into neural signals for vision.

Wavelength

The distance between successive peaks of a wave, often used to describe the physical property of light, sound, and other waves.

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The process by which the eyes become more sensitive to light in low illumination, improving the ability to see in darkness.