y? = 50 x- 100 mm 200 mm Prob. 10-86

Determine the exact total hardness in units of mg/L as CaC03.Ba2+  contributes to hardness as well

A uniform edge load of w₁ = 540 lb/in. and W2 = 400 lb/in. is applied to the polystyrene specimen. Ep = 597 (10³) psi and vp = 0.25. (Figure 1) Figure T W₂ b - < 1 of 1

Question 3 For a 40 wt% Sn-60 wt% Pb alloy at 150 °C and taking the densities of Pb and Sn at 150 °C to be 11.23 and 7.24 g/cm?, respectively. Composition Cats Sn) 20 60 100 327C 600 300 Liquid 500 232'C 200 400 183°C 18.3 61.9 97.8 300 100 200 100 60 80 100 (Pb) Composition (wt% Sn) (Sn) The lead-tin phase diagram a) AN6 marks b) W c) calculate raction. CROmarks d) calculate the relative amount of each phase present in terms of mass fraction volume fraction Temperature ("C) Temperature (F)

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Q1/ Consider the brass alloy for which the stress-strain behavior is shown in the figure below. A cylindrical specimen of this material 10.0 mm in diameter and 101.6 mm long is pulled in tension with a force of 10,000 N. If it is known that this alloy has a value for Poisson's ratio of 0.35, compute (a) the specimen elongation, and (b) the reduction in specimen diameter. 500 70 Tensile strength 450 MPa (65,000 psi) 60 400 50 10 psi 300 MPa 40 40 30 200 Yield strength 30 200 250 MPa (36,000 psi) 20 100 20 10 100 10 0.005 0.10 0.20 0.30 0.40 Strain Stress (MPa) Stress (10 psi)