Posted by haylee on Monday, February 28, 2011 at 6:32pm.
While watching ocean waves at the dock of the bay, Otis notices that 8 waves pass beneath him in 30 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 3 meters apart. What are the period, frequency, wavelength, and speed of the ocean wave?

physics  Dan, Monday, February 28, 2011 at 8:39pm
Frequency is the number of waves that pass by in one second. You know that 8 waves pass by in 30 seconds. How many pass by in 1 second?
Period is the time it takes for one wave to pass by. Period is the inverse of frequency (T = 1/f).
Wavelength is the distance measured from crest to crest.
The speed of the waves can be calculated by multiplying wavelength by the frequency.

physics  hossein, Thursday, February 16, 2012 at 10:44am
frequency is 8/30=./2
period is =1/(8/30)=1/(./2)=5
wavelength is 30 meters and speed of ocean waves is according to above formula becomes (30*./2)=6 m/s
good luck students of physics more study and very more practice physics problems.
alhosseiny from iran(tehran)
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