A steel rod is stretched between two walls. At 20°C, the tensile force in the rod is 3000 N. If the stress is not to exceed 130 MPa at -20°C, find the minimum allowable diameter of the rod. Use a=11.7 x 106/C and E = 200 GPa. Select one: O a. 10.24 mm O b. 9.92 mm O. 16.53 mm O d. 13.22 mm

A steel rod is stretched between two walls. At 20°C, the tensile force in the rod is 3000 N. If the stress is not to exceed 130 MPa at -20°C, find the minimum allowable diameter of the rod. Use a=11.7 x 106/C and E = 200 GPa. Select one: O a. 10.24 mm O b. 9.92 mm O. 16.53 mm O d. 13.22 mm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A steel rod is stretched between two walls. At 20°C, the tensile force in the rod is 3000 N. If the stress is not to
exceed 130 MPa at -20°C, find the minimum allowable diameter of the rod. Use a=11.7 x 10-6/°C and E = 200 GPa.
Select one:
O a. 10.24 mm
O b. 9.92 mm
O C. 16.53 mm
O d. 13.22 mm

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