Atensile test is performed on a metal specimen, and it is found that a true plastic strain of 0.16 is produced when a true stress of 575 mpa (83400 psi) is applied; for the same metal, the value of k in the equation is 860 mpa (124700 psi). calculate the true strain that results from the application of a true stress of 600 mpa (87020 psi). enter your answer in accordance to the question statement

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.