Air flows through a heating duct with a square cross-section with 8-inch sides at a speed of 5.9 ft/s. Just before reaching an outlet in the floor of a room, the duct widens to assume a square cross-section with sides equal to 13 inches. Compute the speed of the air flowing into the room (in ft/s), assuming that we can treat the air as an incompressible fluid.

Answer rating: 100% (QA)

To solve this problem we can use the principle of conservation of mass which states that the mass fl... View the full answer