A Flat Horizontal Plate of Area 400 Cm² Is Dragged

question 4

Multiple Choice

A flat horizontal plate of area 400 cm² is dragged over a 0.20 cm thick layer of oil at a speed of 30.0 cm/s.The oil is resting on a fixed horizontal surface. It takes a force 1.20 N applied to the plate to sustain this speed. What is the viscosity of the oil?

• A) 6.00 kg/m • s
• B) 20.0 kg/m • s
• C) 60.0 kg/m • s
• D) 0.200 kg/m • s
• E) 200 kg/m • s

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In ancient Greece, educated and sophisticated companions or courtesans who engaged in long-term relationships with powerful men for their mutual benefit.

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