Water Waves - Universal Wave Equation

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kylepetten
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Water Waves -- Universal Wave Equation

Homework Statement



Attached.

Homework Equations



v=fλ

The Attempt at a Solution



f= cycles/time
f= 45/60
f= 0.75 Hz

The trouble I am having is wondering if λ is 28 m or do i have to do something else to find λ?
 
Attachments
  • Problem diagram of a boat on wavy water beside a buoy with a tower-shaped beacon; the boat and beacon are labelled and the wave pattern is drawn between them. Text: The centre of the boat shown is 28 m from the beacon on the buoy. If the buoy rocks up and down 45 times in one minute, then what is the speed of the waves?
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No, the wavelength itself is not 28, but 28 is a factor of wavelength. One wavelength is the distance from crest to crest, or trough to trough, or however you want to see it. It is however long the wave is until it repeats itself.