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1. Show that for unpowered flight (for which the lift, drag, and weight forces are in equilibrium) the glide slope angle, θ, is given by tan θ = CD/CL.
2. A sail plane with a lift-to-drag ratio of 25 flies with a speed of 50 mph. It maintains or increases its altitude by flying in thermals, columns of vertically rising air produced by buoyancy effects of nonuniformly heated air. What vertical airspeed is needed if the sail plane is to maintain a constant altitude?
Each turbine stage isentropic efficiency of 85% FWH is open T-S diagram for cycle? What is thermal efficiency and the moisture content of the steam leaving the low-pressure turbine?
deformation measurements were made on a flat rock surface using 0.5000 m-long gauge lengths. the following observations
water is pumped from a lake to a storage tank 40 m above at a rate of 55 ls while consuming 22.6 kw of electric power
steam at 240 degree c and 700 kpa enters an open feedwater healer operating at steady state with a mass flow rate of
At the proportional limit, a 1.5-in. gage length of a 0.375-in.-diameter alloy rod has elongated 0.0081 in. and the diameter has been reduced 0.00071 in. The total tension force on the rod was 5.62 kips.
Explain how this kind of sprinkler is started, and subsequently operated at constant oscillating speed. What is the physical significance of the zero torque condition with the Pelton wheel rotating?
a container with volume 2 m3 filled with three different gases 20 kg oxygen at -23 c 50 kg nitrogen gases at 27 c and
Determine the time required by a diesel-electric locomotive, which produces a constant drawbar pull of 60,000 lb, to increase the speed of an 1800 ton freight train from 20 mi/hr to 30 mi/hr up to 1-percent grade. Train resistance is 10 lb per ton.
Assume that a diaphyseal cross section carries a bending moment M. Let the cross section be circular with inner and outer diameter of 20 and 30 mm, respectively, and assume that the neutral axis (NA) passes through the centroid. Draw the cross sectio..
Oil refineries use large fired heaters to heat oil and other products for processing. These heaters consist of a firebox where a fuel gas (typically natural gas or a refinery fuel gas) is burned, and the radiation from the fire heats the fluid which ..
with a mass of 1000 kg travels at 80kmh has a four-pad braking system. the microk between the brakes and the wheels is
Consider a concentric pipe with inner radius of Rin and outer radius of Rout. The flow is laminar and in the direction of the axis of the pipes. Obtain the velocity profile for this geometry, u(r); and also expressions for the maximum velocity, the m..
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