Residential Construction Academy: House Wiring
Residential Construction Academy: House Wiring
4th Edition
ISBN: 9781305178502
Author: Gregory W Fletcher
Publisher: Cengage Learning US
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Chapter 1, Problem 12RQ
To determine

Whether the given statement is true or false.

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Prob. For the truss shown below: g All bar equal area = A All bars the same modulus of elasticity = E All bars the same coefficient of thermal expansion = a L e d. L L a) Let bar “bg" be heated by 100 degrees centigrade - determine the temperature change needed on bar “ag" so that point “b" doesn't move vertically (i.e. when both temperature changes take place the vertical movement of point b is zero). b) Compute the vertical movement of point "b" due to the load acting at "e" as shown below g h e d. 60 kips L L L
Find the moment caused by force F about point O. (Hint: It may be easier to break up F into components first) Y 10'-0" B 40° F = 550 lb 5'-0" X
Determine the forces in each member of the truss, and state if the members are in tension or compression
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