Consider a cylindrical nickel wire 2.0 mm in diameter and 3 × 104 mm long. Calculate its elongation when a load of 400 N is applied. Assume that the deformation is totally elastic. The Young’s modulus for nickel is 207 GPa. [4 points]

Abrayton cycle operates with a regenerator on the air-standard with properties evaluated at 400 k. the tem- perature of the air entering the compressor is 350k while the temperature of the air exiting the compressor is 600 k. the temperature of the air entering the turbine is 1600 k. the overall cycle produced 600 kj/kg of net work out. assuming a regenerator effectiveness of 0.8, what is the temperature of the air before heat addition (combustion)? draw this process on a t - s diagram