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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