When you slosh the water back and forth in a tub at just the right frequency, the water alternately rises and falls at each end, remaining relatively calm at the center. Suppose the frequency to produce such a standing wave in a 55m wide tub is 0.80 Hz. Required:
What is the speed of the water wave?

The  speed of the water wave is

Explanation:

From the question we are told that

      The  width of the tube is  

     The fundamental  frequency is  

Generally the fundamental frequency is mathematically represented as

=>    

substituting values

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