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To find the speed of the waves, we need to use the formula:
Speed = Distance / Time
In this case, the distance is the length of each wave from crest to crest, which is given as 2 meters. The time is the time it takes for four waves to pass directly under you, which is 2 seconds.
Therefore, substituting the values into the formula:
Speed = 2 meters / 2 seconds
Simplifying the equation:
Speed = 1 meter/second
So, the speed of the wave is 1 meter per second.