Viscosity: a Flat Horizontal Plate of Area 400 Cm² Is

question 29

Multiple Choice

Viscosity: 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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Definitions:

Rectal

Related to the rectum, the final section of the large intestine, terminating at the anus.

Pasteurization

A heat treatment process applied to food and drinks to kill harmful microorganisms and extend shelf life without significantly altering the taste or nutritional value.

Sterilizing (Autoclave)

A process of killing all microorganisms, including spores, on tools or equipment by using high pressure and steam in a device known as an autoclave.

Boiling

The rapid vaporization of a liquid when it is heated to its boiling point.