Air is blown through a large wind tunnel by a 5m diameter circular fan. if the air velocity just downstream of the fan is 2.5m/s, what will be its velocity at a 1.5m square section further down the wind tunnel? a7 [2] a) 18.3m/s 17.4m/s b) 2.5m/s 250m/s 21.81m/s

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?