The elongation of a steel bar under a particular load has been established to be normally distributed with a        mean of 0.05 inch and a = 0.01 inch. Find the probability that the elongation is (a) above 0.1 inch; (b) below 0.04 inch; (c) between 0.025 and 0.065 inch.

Axial loads are applied to the compound rod that is composed of an aluminum segment rigidly connected between steel and bronze segments. If P = 75 kN, determine the following:a. Stress in the bronze segment.b. Stress in the aluminum segment.c. Stress in the steel segment.

4.c

Part 2 * Your answer is incorrect. The z-component of momemt M will cause compression at A and B, and tension at C and D. The y-component of moment M will cause compression at A and D, and tension at B and C. The maximum tensile bending stress will occur at point C. Calculate the magnitude of the largest bending moment that can be applied so that the stress at corner C does not exceed 205 MPa. Answer: M- eTextbook and Media Save for Later Part 3 8.31E1 Answer: M-i The z-component of moment M will cause compression at A and B, and tension at C and D. The y-component of moment M will cause compression at A and D, and tension at B and C. The maximum compressive bending stress will occur at point A. Calculate the magnitude of the largest bending moment that can be applied so that the stress at corner A does not exceed 205 MPa. eTextbook and Media Save for Later Part 4 kN-m * Your answer is incorrect. kN-m Submit Answer Determine the maximum bending moment that can be applied to this cross…

Quiz1

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1. The assembly has the diameters and material makeup indicated. If it fits securely between its fixed supports when the temperature is T; = 70°F, determine the average normal stress in each material when the temperature reaches T2 = 130°F. 304 Stainless steel - 2014-T6 Aluminum -C 86100 Bronze A 12 in. 8 in. D C 4 in. -4 ft- 6 ft- 3 ft

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Determine the compressive force (in lb) in the bars shown after a temperature rise of 173°F if d = 0.015 in. Round off the final answer to five decimal places. Use the following data: Bronze              Aluminum A = 2.24 sq. in          A = 2.78 sq. in  E = 14959726 psi            E = 10594540 psi L = 12.5 in            L = 16.6 in α = 11.61 x 10-6/ °F      α = 12.67 x 10-6/°F

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