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

---

Definitions:

Hydroxide ions

Negatively charged ions made up of one oxygen and one hydrogen atom, symbolized as OH-.

Alkaline Solution

A solution with a pH value greater than 7, indicating it has fewer hydrogen ions than pure water and is commonly referred to as basic.

Basic Solution

A solution that has a pH greater than 7, indicating it has a higher concentration of hydroxide ions than hydrogen ions.

Organic Molecules

Compounds primarily made of carbon atoms, often containing hydrogen, oxygen, and other elements, that are the basis of life.