Daria was swimming in a friend’s pool yesterday, when she saw that a fly had landed in the water about 5 feet away from her. she began screaming, jumped out of the pool as fast as she could, and refused to get back in for the rest of the day. this is not the first time that her fear of bugs has interfered with a nice afternoon outside, and she has been less and less willing to participate in such activities recently. daria probably suffers from

Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.