Fwall-x W pack Fwall-y Warms Wtrunk Fm
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter37: Air Distribution And Balance
Section: Chapter Questions
Problem 12RQ: Name four materials used to manufacture duct.
Related questions
Question
The weight of the trunk (Wtrunk) is 500 N, and it has a moment arm of 0.10 m.
The weight of the arms (Warms) is 50 N, and it has a moment arm of 0.50 m.
Calculate the back extensor force (Fm),bone compressive force and bone shear force acting on the lumbar vertebra.
The horizontal force from the wall (Fwall-x) is 25 N, and it has a moment arm of 0.25 m.
The vertical force from the wall (Fwall-y) is 50 N, and it has a moment arm of 0.75 m.
The weight of the backpack (Wpack) is 25 N, and it has a moment arm of 0.15 m.
The back extensor muscle has a moment arm of 0.05 m.
Transcribed Image Text:Fwall-x
W pack
Fwall-y
Warms
Wtrunk
Fm
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