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The Piper Cherokee has a wing area of 170 ft2 and a wing span of 32 ft.
Its maximum gross weight is 2450 lbs. The wing uses a NACA 65-415 airfoil, which has a lift slope of 0.10331deg^-1 and alpha(L=0)= -3.0deg. Assume that tau = 0.12 . If the airplane is cruising at 120 mph at standard sea level at its maximum gross weight and is in straight and level flight, calculate the geometric angle of attack.
you are working for a satellite manufacturer. the satellite is designed for use in a geosynchronous geo orbit. its
2 m3 of air in a rigid and insulated container that is fitted with a paddle wheel assembly. the air starts at 300 k and
refrigerant 134a enters an adiabatic compressor as saturated vapor at 200kpa at a rate of 30 kgmin and is composed to a
The plastic stress-strain curve for the material is given by ( σ = 500 ε 0.25 MPa). The tube is subject to axial load F and internal pressure p so that the stress ratio σθ/σz = 3.0 at all times. The deformation continues until the effective stress..
ten kg of water is in a closed container with a volume of 0.73 m3 and a temperature of 1000 degc. determine the amount
steam at 900 degrees f and 1200 psi enters an insulated turbine operating at a steady state through a 4 foot diamter
A 90-kg man and 60-kg woman stand side by side at the same end of of 150-kg boat ready to dive, each with a 5-m/s velocity of the boat after they have both dived, if (a) the women dives first, (b) the man dives first.
two humid airstreams are adiabatically mixed at 1atm pressure to form a third stream. the first stream has a
It is 3.0 mm thick, 2.40 m long, and 2.40 m wide. In service it is subjected to a cyclic stress of ±700 MPa, which is not enough to cause yielding but does cause gradual crack growth of a preexisting crack normal to the loading direction at the ed..
An air conditioner maintains the temperature of a dwelling at 72 0F when it is 96 0F outside. If heat is transferred through the walls and ceiling at 35,000 BTU/hr. a) What is the minimum power required to run the air conditioner in hP and b) calcula..
Describe a specific web or mobile application's purpose. How is it used? What changes has it brought about to its users? What are some likely future uses and enhancements?
Determine the change in specific entropy between the specified states, in kJ/kg·K. Water, p1 =10MPa, T1 =400°C,p2 =10MPa, T2 =100°C. Air asanidealgas,p1 =200kPa, T1 =7°C,p2 =100kPa, T2 =327°C.
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