Early in the twentieth century, the notion of continental drift was revived, most notably by german meteorologist and geophysicist he put together the first comprehensive theory to describe and partially explain the phenomenon, publishing his landmark book die entstehung der kontinente und ozeane (the origin of continents and oceans) in 1915. group of answer choices alfred hitchcock alfred wegener claude debussy charles darwin

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.