The container of oil and the air bubble are at 20deg c, Ask an Expert

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An air bubble of 1.0-mm radius is rising in a container with vegetable oil of specific gravity 0.80 and viscosity 0.21 Pa · s. The container of oil and the air bubble are at 20° C where the density of air is 1.20 kg/m3. What is its terminal velocity? Answer given in cm/s.

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