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A solid stee between rigid walls. If the stress in the bar is zero at 27° what will be the stress (MPa) in the bar when the temperatur rises to 42°C? Use E = 200 GPa and a = 12.5 x 106 m/m-°C. A. 172.5 C B. 172.5 T lete ong is secur C. 37.5 T D. 37.5 C

A solid stee between rigid walls. If the stress in the bar is zero at 27° what will be the stress (MPa) in the bar when the temperatur rises to 42°C? Use E = 200 GPa and a = 12.5 x 106 m/m-°C. A. 172.5 C B. 172.5 T lete ong is secur C. 37.5 T D. 37.5 C

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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4. A solid steel bar 50 mm in diameter and 1.5 m long is secured between rigid walls. If the stress in the bar is zero at 27°C, what will be the stress (MPa) in the bar when the temperature rises to 42°C? Use E = 200 GPa and a = 12.5 x 10-6 m/m-°C. А. 172.5 С В. 172.5 T C. 37.5 T D. 37.5 C 5. A 12-m vertical pole has an outside diameter of 300 mm and inside diameter of 250 mm. The pole is subjected to a load that varies uniformly from 800 N/m at the base to 1200 N/m at the top. Compute the maximum shearing stress (MPa) in the pole. А. 2.54 В. 1.65 С. 3.47 D. 1.11 6. A 12-m vertical pole has an outside diameter of 300 mm and inside diameter of 250 mm. The pole is subjected to a load that varies uniformly from 800 N/m at the base to 1200 N/m at the top. Compute the maximum flexural stress (MPa) in the pole. A. 56 В. 49 С. 52 D. 64
Transcribed Image Text:4. A solid steel bar 50 mm in diameter and 1.5 m long is secured between rigid walls. If the stress in the bar is zero at 27°C, what will be the stress (MPa) in the bar when the temperature rises to 42°C? Use E = 200 GPa and a = 12.5 x 10-6 m/m-°C. А. 172.5 С В. 172.5 T C. 37.5 T D. 37.5 C 5. A 12-m vertical pole has an outside diameter of 300 mm and inside diameter of 250 mm. The pole is subjected to a load that varies uniformly from 800 N/m at the base to 1200 N/m at the top. Compute the maximum shearing stress (MPa) in the pole. А. 2.54 В. 1.65 С. 3.47 D. 1.11 6. A 12-m vertical pole has an outside diameter of 300 mm and inside diameter of 250 mm. The pole is subjected to a load that varies uniformly from 800 N/m at the base to 1200 N/m at the top. Compute the maximum flexural stress (MPa) in the pole. A. 56 В. 49 С. 52 D. 64
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