Question: . A 1-in-wide space between two horizontal plane surfaces is filled with SAE 30 Western lubricating oil at 80F (the dynamic viscosity is 0.0063 lb-s/ft?).

A 1-in-wide space between two horizontal plane surfaces is filled with SAE .

A 1-in-wide space between two horizontal plane surfaces is filled with SAE 30 Western lubricating oil at 80F (the dynamic viscosity is 0.0063 lb-s/ft?). What force is required to drag a very thin plate of 4-ft area through the oil at a velocity of 20 ft/min if the plate is 0.33 in from one surface? The velocity profile above the thin plate is linear and the velocity profile below the thin plate is also linear. 0.33 in Oil 20 tAnin 0.67 in Oif 4-tt plate

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