A Floating Leaf Oscillates Up and Down Twice in 1

question 103

Multiple Choice

A floating leaf oscillates up and down twice in 1 s as a water wave of wavelength 10 m passes by.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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