What is a Wave? Video Lessons

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Problem: A group of swimmers is resting in the sun on an off-shore raft. They estimate that 2.79 m separate a trough and an adjacent crest of surface waves on the lake. They count 14 crests that pass by the raft in 20.7 s. How fast are the waves moving? A. 3.88251 B. 4.75641 C. 4.55385 D. 4.17228 E. 3.72 F. 3.77391 G. 5.43646 H. 4.01154 I. 3.30603 J. 5.30653

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Problem Details

A group of swimmers is resting in the sun on an off-shore raft. They estimate that 2.79 m separate a trough and an adjacent crest of surface waves on the lake. They count 14 crests that pass by the raft in 20.7 s. How fast are the waves moving?

A. 3.88251

B. 4.75641

C. 4.55385

D. 4.17228

E. 3.72

F. 3.77391

G. 5.43646

H. 4.01154

I. 3.30603

J. 5.30653

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the What is a Wave? concept. You can view video lessons to learn What is a Wave?. Or if you need more What is a Wave? practice, you can also practice What is a Wave? practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Juan took 3 minutes and 40 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Lei's class at GSU.