body has A steel (s=7.86) rectangular parallelepiped dimensions of 150 mm by 150 mm by 300 mm. It is placed on a sloping surface that is coated with a certain substance 0.9 mm thick. The angle of the sloping surface is 20° to the horizontal. If the 150 mm by 150 mm dimensions are in contact with the substance and the body is observed to move at the constant rate of 0.5 m/s, determine the viscosity of the substance. If this time, the 150 mm by 300 mm dimensions are in contact with the substance, determine the expected terminal velocity.

body has A steel (s=7.86) rectangular parallelepiped dimensions of 150 mm by 150 mm by 300 mm. It is placed on a sloping surface that is coated with a certain substance 0.9 mm thick. The angle of the sloping surface is 20° to the horizontal. If the 150 mm by 150 mm dimensions are in contact with the substance and the body is observed to move at the constant rate of 0.5 m/s, determine the viscosity of the substance. If this time, the 150 mm by 300 mm dimensions are in contact with the substance, determine the expected terminal velocity.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

PROBLEM 8:
A steel (s=7.86) rectangular parallelepiped body has
dimensions of 150 mm by 150 mm by 300 mm. It is
placed on a sloping surface that is coated with a certain
substance 0.9 mm thick. The angle of the sloping
surface is 20° to the horizontal. If the 150 mm by 150
mm dimensions are in contact with the substance and
the body is observed to move at the constant rate of 0.5
m/s, determine the viscosity of the substance.
If this time, the 150 mm by 300 mm dimensions are in
contact with the substance, determine the expected
terminal velocity.
Y=0.9 mm
F=Wsin20⁰
W
20⁰
20
→
U=0.5 m/s

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