Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 38, Problem 9RQ
What happens if flexible duct is turned too sharply around a corner?
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Students have asked these similar questions
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There are 3 forces acting on the eye bolt.
Force F1 acts on the XY plane has a magnitude of 536 lbf,
and the angle of 0 = 38°.
Force F2 acts on the YZ plane has a magnitude of 651 lbf,
and the angle = 41°.
Force F3 has a magnitude of 256 lb, and coordinate.
=
f
direction angles of a 71°, B = 115°, and y = 33°.
Determine the resultant force on the eye bolt.
FR = (
+
k) lbf
FR magnitude:
FR coordinate direction angle a:
deg
FR coordinate direction angle ẞ`:
deg
FR coordinate direction angle y:
deg
lbf
Ball joints connect the ends of each of the struts as shown.
The resulting structure supports a force of F = 1925 N which
lies in the xz plane.
a.) Determine the angle (in degrees) between strut AD and
strut AC.
b.) Determine the dimension g such that the force Fis
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perpendicular to гAC.
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Values for dimensions on the figure are given in the table
below. Note the figure may not be to scale. Be sure to align
your cartesian unit vectors with the coordinate axes shown in
the figure.
Variable Value
a
4.8 cm
b
13.4 cm
C
11.6 cm
d
10.4 cm
h
4.4 cm
k
14.8 cm
a. The angle between strut AD and strut AC is
b. The dimension g is
deg.
cm.
13
F1
35
N = 37°.
=
Determine the resultant force on the eye bolt.
FR = (
+
FR magnitude:
FR coordinate direction angle a:
deg
FR coordinate direction angle ẞ`:
Ꭱ
deg
FR coordinate direction angle y:
deg
N
k) N
Chapter 38 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 38 - The three crafts normally associated with an...Ch. 38 - True or False: The flexible duct system is the...Ch. 38 - Name the two fasteners that typically fasten...Ch. 38 - What fastener is normally used to fasten round...Ch. 38 - True or False: Insulation on duct does not prevent...Ch. 38 - When insulation on the inside of the duct comes...Ch. 38 - Most duct insulation is made of_________.Ch. 38 - What is the purpose of the flexible duct...Ch. 38 - What happens if flexible duct is turned too...Ch. 38 - Why must flexible duct be stretched slightly for...
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