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Assume that the power, required to drive a fan is a function of the fan diameter, D, the air density, ρ, the rotational speed,ω, and the flow rate, Q. Use D, ω, and ρ as repeating variables to determine a suitable set of pi terms.
A team of engineering students is designing a catapult to launch a small ball atA so that it lands in the box. If it is known that the initial velocity vector makes a angle with the horizontal, determine the range of launch speeds for which the ba..
An airplane pilot is about to leave a long cross-country trip that will require him to use oxygen. He's noticed that the amount of oxygen in the bottle in the plane is low, so he must refill it from the large supply tank of oxygen in his hanger. The ..
a four stoke eight cylinder otto engine operates at 2500 rpm and the compression ratio is 61. the cylinder volume is
A cantilevered beam with a rectangular cross section is loaded by a force perpendicular to the beam centerline at the free end. The cross section is 100mm high and 25 mm wide. The vertical load at the beam end is 40,000 N. Calculate how long the beam..
Determine the resulting stress equations for σx, σy and τxy given the Airy's stress function ? = a1x^4 + a2(x^3)y + a3(x^2)(y^2) + a4x(y^3) + a5(y^4), where ai are constants. Also determine, if any, the restrictions between constants.
The circuits below are an illustration of the working of a pressure reducing valve and a high-low system employing an unloading valve. Explain the operation of the valves
A well-insulated heat exchanger is used to heat water (cp = 4.18 KJ/kg*K) from 300 K to 90°C with a mass flow rate of 3 kg/s. Heat is supplied by hot oil (cp = 2.3 KJ/kg*K) that enters the heat exchanger at 200°C with a mass flow rate of 15 kg/s.
estimate the average electrical drift velocity in cms for a flat plate esp with a total collector area equal to 10000
A piping system consists of 300 ft of 2-in pipe, a sudden expansion to 3-in pipe and then 75 ft of 3-in pipe. Water is flowing at 125 gal/min through the system. What is the pressure difference from one end of the pipe to the other?
determine the maximum value of the coefficient of static friction for which the brake is not self-locking when the drum rotates counterclockwise.
a gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processesprocess 1-2.
1 water at 60 of is flowing in a 6-in schedule 40 steel pipe that is 100 ft long. calculate the maximum allowable
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