Acable consists of a steel wire 2.5mm in diameter, surrounded by six bronze wires of the same size. if the allowable stress in the bronze is 60mpa, find the safe load for the cable and the extension under this load on the length of 30m (est= 200gpa and ebr = 80gpa).

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