A hair dryer is basically a duct of constant diameter 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. If the density of air is 1.20 kg/m3 at the inlet and 1.05 kg/m3 at the exit, determine the percent increase in the velocity of air as it flows through the dryer.
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A hair 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 demand equation for a hair dryer is p = 42 ? (0.001x + 2, where x is the number of units demanded per day and p is the price per unit. Find the demand when the price is set at $29.95?
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Atlantic Pacific Corporation was organized on September 1, 2011, with authorized capital stock of 150,000 shares of 7% cumulative preferred stock with a $40 par value and 1,200,000 shares of no-par common stock with a $2 stated value. During the balance of the year, the following transactions...
This program will take an array of colors and return a String with the values associated with those colors. black=0 brown=1 red=2 orange=3 yellow=4 green=5 blue=6 violet=7 grey=8 white=9 For example if the input is \"blue\",\"white\",\"brown\" the returned String would be \"691\" or if input is \"grey\" the...
Air enters a nozzle steadily at 2.21 kg/m3 and 40 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 90 cm2, determine (a) The mass flow rate through the nozzle, and (b) The exit area of the nozzle.
Air whose density is 0.078 lbm/ft3 enters the duct of an air-conditioning system at a volume flow rate of 450 ft3/min. If the diameter of the duct is 10 in, determine the velocity of the air at the duct inlet and the mass flow rate of air.