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A Boeing 747 aircraft weighing 580,000 lb when loaded with fuel and 100 passengers takes off with an airspeed of 140 mph. With the same configuration (i.e., angle of attack, flap settings, etc.), what is its takeoff speed if it is loaded with 372 passengers? Assume each passenger with luggage weighs 200 lb.
three coupled street cars are moving at a speed of 32 kmhr down a 7 degree incline. each car has a weight of 198 kn.
Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4MPa. 500 degree Celsius and 80m/s and the exit conditions are 30kPa, 92 percent quality and 50m/s. the mass flow rate of the steam is 12kg/s. determine the chan..
Saturated isobutane vapor at 320 K is contained in a piston-cylinder assembly. It is expanded to 3 bar by a reversible isothermal process. At 320 K, the vapor pressure of isobutane is 6.243 bar. Using the truncated virial equation of state, i.e. with..
Using the results of Problem 1.38, determine the modified coefficient of performance and the required power input W under (a) clean and (b) dusty coil conditions.
some pollution like the now banned toxic pesticide ddt dichlorodiphenyldicholorethaneand its relative dde
Air at 300 kPa, 63oC, and a velocity of 423 m/s enters an insulated duct of varying cross-sectional area. The air exits at 150 kPa, 88oC. At the inlet, the cross-sectional area is 6.57 cm2.
Determine the maximum tensile and compressive stresses σt and σc, respectively, in the pole (at its base) due to the weights and the wind force
water is the working fluid in an ideal rankine cycle. the steam enters the turbine at 15 mpa and enters the condenser
Draw the shear and moment diagrams for members AB and AF. Sketch the deflected shape, and determine the deflection at midspan
moist air at standard conditions in an indoor building space has a dry bulb temperature of 72f and relative humidity
Determine the tube length required for the water vapor to reach 99% of saturation. What is the rate at which energy must be supplied to each tube to maintain its temperature at 298 K?
steam enters a diffuser at 20 psia and 240of with a velocity of 900 fts and exits as saturated vapor at 240of and 100
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