many software problems arise due to myths that are formed during the initial stages of software development also some issues are reality but some people considered them as myth. Find myth and reality from below three statements and justify your comment. A software that is tested strictly is Bug free. in software development high degree of documentation is needed. testers need not be involved early

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.