A swimming duck paddles the water with its feet once every 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 0.32 m/s, and the crests of the waves ahead of the duck are spaced 0.12 m apart. (a) What is the duck’s speed? (b) How far apart are the crests behind the duck?

A swimming duck paddles the water with its feet once every 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 0.32 m/s, and the crests of the waves ahead of the duck are spaced 0.12 m apart. (a) What is the duck’s speed? (b) How far apart are the crests behind the duck?

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Question

A swimming duck paddles the water with its feet once every 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 0.32 m/s, and the
crests of the waves ahead of the duck are spaced 0.12 m apart. (a) What is
the duck’s speed? (b) How far apart are the crests behind the duck?

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