Two wires AB and AC are made of steel and wire AD is made of copper. Before the 150 lb load is applied, AB and AC are each 60 in. Iong and AD is 40 in. Iong. If the temperature is increased by 80°F, determine the force in each wire needed to support the load. E for steel is 29000 ksi and a = 8 x 106 in / in °F. E for copper is 17000 ksi and a = 9.6 x 106 in / in °F. Each wire has a cross-sectional area of 0.0123 in?. D A 150 lb
Two wires AB and AC are made of steel and wire AD is made of copper. Before the 150 lb load is applied, AB and AC are each 60 in. Iong and AD is 40 in. Iong. If the temperature is increased by 80°F, determine the force in each wire needed to support the load. E for steel is 29000 ksi and a = 8 x 106 in / in °F. E for copper is 17000 ksi and a = 9.6 x 106 in / in °F. Each wire has a cross-sectional area of 0.0123 in?. D A 150 lb
Residential Construction Academy: House Wiring (MindTap Course List)
4th Edition
ISBN:9781285852225
Author:Gregory W Fletcher
Publisher:Gregory W Fletcher
Chapter1: Residential Workplace Safety
Section: Chapter Questions
Problem 12RQ
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![Two wires AB and AC are made of steel and wire AD is made of copper. Before the 150 lb load is
applied, AB and AC are each 60 in. long and AD is 40 in. long. If the temperature is increased by 80°F,
determine the force in each wire needed to support the load. E for steel is 29000 ksi and a = 8 x 10€ in
/ in °F. E for copper is 17000 ksi and a = 9.6 x 106 in / in °F. Each wire has a cross-sectional area of
0.0123 in?.
/////
D
A
150 lb](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F362c3464-6ead-4b71-89de-f94d6c8f8f99%2F3b845b4c-d9b5-414a-8e0f-1eeeb4aa43f1%2Ffizkgro_processed.png&w=3840&q=75)
Transcribed Image Text:Two wires AB and AC are made of steel and wire AD is made of copper. Before the 150 lb load is
applied, AB and AC are each 60 in. long and AD is 40 in. long. If the temperature is increased by 80°F,
determine the force in each wire needed to support the load. E for steel is 29000 ksi and a = 8 x 10€ in
/ in °F. E for copper is 17000 ksi and a = 9.6 x 106 in / in °F. Each wire has a cross-sectional area of
0.0123 in?.
/////
D
A
150 lb
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