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A dinoflagellate takes 4.9 s to travel 0.5 mm. Approximate a dinoflagellate as a sphere of radius 35.0 µm (ignoring the flagellum).

(a) What is the drag force on the dinoflagellate in seawater of viscosity 0.0011 Pa · s?

______ N

(b) What is the power output of the flagellate?

______ W

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