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August 20, 2014

Homework Help: PHYSICS! I CAN NOT GET

Posted by Jessica on Friday, April 12, 2013 at 8:52am.

A group of swimmers is resting in the sun on an off-shore raft. They estimate that 2.5 m separates a trough and an adjacent crest of surface waves on the lake. They count 15 crests that pass by the raft in 15 s. How fast are the waves moving?

____m/s


(I got these answers and none of them were correct)
.17
6.07
6.05
5.56
4.86
4.9
5.6
4.85

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