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Physics, 11.02.2020 04:28 calderonjudith9351

A swimming duck paddles the water with its feet once per time interval of 1.6 s, producing surface waves with this period. The duck is moving at constant speed in a pond where the speed of surface waves is 0.40 m/s, and the crests of the waves ahead of the duck have a spacing of 0.20 m.
Part A: What is the duck's speed?
Part B: How far apart are the crests behind the duck?

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