7.10 - a small company has developed a specialized product that it configures specially for each customer. new customers usually have specific requirements to be incorporated into their system, and they pay for these to be developed. the company has an opportunity to bid for a new contract, which would more than double its customer base. the new customer also wishes to have some involvement in the configuration of the system. explain why, in these circumstances, it might be a good idea for the company owning the software to make it open source.

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.