Engineering, 14.12.2019 03:31, gabrielmartinsotr4yl
Acommercial airplane has a total mass of 150,000 lbm and a wing planform area of 1800 ft2. the plane has a cruising speed of 550 mi/h and a cruising altitude of 38,000 ft where the air density is 0.0208 lbm/ft3. the plane has double-slotted flaps for use during takeoff and landing, but it cruises with all flaps retracted. assuming the lift and drag characteristics of the wings can be approximated by nac a 23012, determine
(a) the minimum safe speed for takeoff and landing with and without extending the flaps,
(b) the angle of attack to cruise steadily at the cruising altitude
(c) the power that needs to be supplied to provide enough thrust to overcome drag. take the air density on the ground to be 0.075 lbm/ft3.
Answers: 1
Engineering, 04.07.2019 18:10, katelynn73
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
Answers: 1
Engineering, 04.07.2019 18:10, wyattlb97
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
Engineering, 04.07.2019 18:20, hayleymckee
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
Engineering, 04.07.2019 19:10, pjgolden04
How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?
Answers: 2
Acommercial airplane has a total mass of 150,000 lbm and a wing planform area of 1800 ft2. the plane...
Mathematics, 16.12.2021 02:10
Chemistry, 16.12.2021 02:10
English, 16.12.2021 02:10
Mathematics, 16.12.2021 02:10
Mathematics, 16.12.2021 02:10
Mathematics, 16.12.2021 02:10
Business, 16.12.2021 02:10