Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
8th Edition
ISBN: 9780357261385
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 37, Problem 21RQ
If a rectangular duct system s
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The hydraulic cylinder BC exerts on member AB a force P directed along line BC. The force P must have a 560-N
component perpendicular to member AB.
A
M
45°
30°
C
Determine the force component along line AB.
The force component along line AB is
N.
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A telephone cable is clamped at A to the pole AB. The tension in the left-hand portion of the cable is given to be
T₁ = 815 lb.
A
15°
25°
B
T₂
Using trigonometry, determine the required tension T₂ in the right-hand portion if the resultant R of the forces exerted by the cable at
A is to be vertical.
The required tension is
lb.
Chapter 37 Solutions
Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
Ch. 37 - Name five changes that are made to air to...Ch. 37 - The two ways that fresh air enters a structure are...Ch. 37 - Which of the following types of fan is used to...Ch. 37 - True or False: Turbulence in airflow causes...Ch. 37 - Name two types of blower drives.Ch. 37 - Pressure in ductwork is expressed in which of the...Ch. 37 - What is a common instrument used to measure...Ch. 37 - Prob. 8RQCh. 37 - Name the two types of return-air systems in...Ch. 37 - What is the component that distributes air in the...
Ch. 37 - Warm air heats a room better if distributed A. low...Ch. 37 - Name four materials used to manufacture duct.Ch. 37 - The name of the fitting where the branch line...Ch. 37 - Prob. 14RQCh. 37 - Prob. 15RQCh. 37 - Prob. 16RQCh. 37 - Multiple-zone systems often use a(n) __________or...Ch. 37 - Prob. 18RQCh. 37 - Prob. 19RQCh. 37 - Prob. 20RQCh. 37 - If a rectangular duct system s (12in.26in.) has an...Ch. 37 - The equivalent feet of pressure drop for a group...
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