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posted by kimberley .
Ocean waves are traveling to the east at 4 m/s with a distance of 20m between crests. With what frequency do the waves hit the front of a boat (a) when the boat is at anchor and (b) when the boat is moving westward at 1 m/s?
frequency= distance/velocity
For the second, the relative veloicty is faster, 5 m/s.
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