An annealed copper bar of 1.6inches length and 1 inch diameter was subjected to a tensile test. The following data points were obtained for this materialthrough careful observation and experimental stress determination methods. The engineeringstress at the onset of plastic deformation was 80,000 psi. The modulus of elasticity was 720,000 psi. The strain-hardening index was 0.5. What is the strength coefficient of the material, true yield stress, and the true ultimate stress

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k