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A horizontal flat plate is in a free stream of air at T_{\infty } = 290K and u_{\infty } = 0.05m/s. The flat plate’s length (in the direction of the free-stream velocity) is L = 2m, its width is w = 0.5m and its temperature is T = 310K. Find the total heat transfer from both sides of the plate, due to the combined effects of forced and free convection
For a vehicle in gravitationless space, determine the mass ratio necessary to boost the vehicle velocity by 1600 m/sec; the effective exhaust velocity is 2000 m/sec and the initial total vehicle mass is 4000 kg.
identical 9.00 microc charges are fixed to adjacent corners of a square. what charge magnitude and algebraic sign
Hydrostatics and stability-In lightship condition, how does the ship trim and why? How does the ship react when weights are added or subtracted? How does the curve of statical stability change with vertical shift of weights?
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added to thenbsptank until the pressure and
a car with a mass of 1480 kg is constructed so that its frame is supported by four springs. each spring has a force
suppose that water at room temperature of 27degc is put into an ideal refrigerator that maintains an inside temperature
find the entropy in a throttling process per unit mass for ammonia. take the inlet state as specified as saturated
a first-order system with a time constant equal to 10 ms is subjected to a sinusoidal forcing with an input amplitude
a large plate of a titanium-aluminum-vanadium alloy ti-6al-4v is at room temperature. estimate the maximum length of an
argon at 20 degrees c and 100kpa has a velocity of 27 ms and enters a constant diameter pipe of 18mm. as the argon
Consider a Carnot heat engine and a refrigerator operating between the same two thermal energy reservoirs. If the thermal efficiency of the heat engine is 0.80, the COP of the refrigerator is?
what force would be required to start a 250lb crate sliding across a cement floor which has a coefficient of static
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