A Floating Leaf Oscillates Up and Down Two Complete Cycles

question 9

Multiple Choice

A floating leaf oscillates up and down two complete cycles in one second as a water wave passes by.The wave's wavelength is 10 meters.What is the wave's speed?

• A)2 m/s
• B)10 m/s
• C)20 m/s
• D)40 m/s
• E)more than 40 m/s

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