science
posted by natalie .
if the distance between crest were 1.5 meters apart, and 2 crest pass the pole each second, what would be the speed of the wave ?

period= .5 seconds, wavelength= 1.5
wavelenght*frequency= speed
1.5m*1/.5sec= .75m/s 
You are sitting in a rowboat on a lake, watching waves created by passing motorboat. If you have count 4 crest every
second and the crest are 5 ft apart, what is the speed of the water waves?
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