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2) Calculate the following: A) Estimate the modulus of resilience. It uses the expanded scale. B) Estimate the modulus of toughness. It uses the regular scale with each block being 0.04 in width. 8 σ (ksi) 80 70 60 50 40 30 20 10 0 0 0 Stress vs. Strain Uses Regular Scale Uses Expanded Scale 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 € (in./in.)

Q1. As shown in the image below, the force acting on the box is F = (C.s²) N, where constant C = 2 and s is displacement in m. S Determine the work done by force ♬ to the box when the box has displaced s = 1.2 m. Please pay attention: the numbers may change since they are randomized. Negative sign must be included if the work done is negative. Your answer must include 2 places after the decimal point, and proper Sl unit. 1 F Your Answer: Answer units S

36.82 gg + 17 mgmg Complete the operation and express the answer with the appropriate number of significant figures and units

- 6. A 6 mm diameter rod, of unknown material, is subjected to 10 kN tensile load. In the process, its length increased from 70 mm to 72 mm. If stress is proportional to strain, determine the modulus of elasticity, in GPa, of the material? 10.7 12.4 a. b. C. 19.5 d. Answer is not among the choices 16. How much should an 80-kg person weigh (in Newtons) if he is on top of Mt. Kilimanjaro, which is at 5890 m above sea level? The mass and radius of the earth are 5.9742 x 1024 kg and 6378 km, respectively. Use a universal gravitational constant of 6.67 x 10-11 m³/kg-s² a. 782 b. 784 C. 786 d. 788

The reference state of stress shown in the element sketch below results in the Mohr’s circle plot indicated. For this element, as described below, determine:a)The principal stresses.b)The principal directions (angles to the principal planes).c)The maximum in-plane shear stress.d)Is the maximum in-plane shear stress the absolute maximum shear stress?

The answer is one of the options below please solve carefully and circle the correct option Please write clear .

For the state of plane stress, stress components are shown on the element in Figure Question 1: a) Draw Mohr's circle b) Determine the principal planes and the principal stresses c) The stress components exerted on the element obtained by rotating the given element counterclockwise through 30°. y| 60 MPa x 100 MPa 48 MPa