Three equal-length straight rods, of aluminum, Invar, and steel, all at 20.0 C, form an
Chapter 18, Problem 76(choose chapter or problem)
Three equal-length straight rods, of aluminum, Invar, and steel, all at 20.0 C, form an equilateral triangle with hinge pins at the vertices. At what temperature will the angle opposite the Invar rod be 59.95 ? See Appendix E for needed trigonometric formulas and Table 18-2 for needed data.
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