Which failure theory would be appropriate to solve the following problem: A structural, A36, steel strut is subject to a varying tensile force of 20-kN to a compressive force of 8-kN. Maximum Shear Stress Theory Maximum Normal Stress Theory Coulomb-Mohr Theory von Mises Endurance Limit Distortion Energy Theory Modified Mohr Theory Goodman Criterion

Convert between energy units. 132x10^4 kJ to kcal

For the equilibrium Al-Cu system, if you were at a temperature of 547°C and a composition of 60 wt% Cu, what phases would be present? Select the phase(s) from the below list. Atomic percentage, copper °C 10 20 30 40 50 60 70 80 90 100 1,100 1,084.87° Bo 1,000 Yo 900 800 700 660.452 600 53.5 548.2° 567° 5.65 32.7 52.5 500 12 400 52 300 Al 30 40 50 60 70 80 90 Cu Weight percentage, copper 20 101

When a particle is subjected to both gravitational and elastic forces, the resultant force is expressed as which force?