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Air at 3 × 10-4 kg/s and 27°C enters a rectangular duct that is 1 m long and 4 mm × 16 mm on a side. A uniform heat flux of 600 W/m2 is imposed on the duct surface. What is the temperature of the air and of the duct surface at the outlet?
the top cycle of a combined cycle power plant has a pressure ratio of 12. air enters the compressor at 300 k at a rate
describes the research design or approach in depth. This should be a detailed and clearly written description which permits a precise replication of the study. The sections described below apply mainly to a quantitative thesis, but may be appropri..
Determine the width w of the link BC needed so that the structure with load P = 20 kips has a factor of safety equal to 2.5. Link BC is ½ in thick and has a 85 ksi ultimate strength in tension.
the drag on a 2-m. diameter satellite dish in an 80 kmhr wind is to be determined by a wind tunnel test using a
If the price of electricity is $0.08/kWh, determine the amount of energy and money that will be saved as a result of installing motion sensors. Also, determine the simple payback period if the purchase price of the sensor is $32 and it takes 1 hou..
the final paper provides you with an opportunity to integrate and reflect on what you have learned during the class.the
A uniform bar of length l and weight w is suspended symmetrically by two strings, set up the differential equation of motion for small angular oscillations of the bar about the vertical axis, and determine its period.
From the expression, "Build a better mousetrap and the world will beat a path to your door," write a goal/problem statement and a set of at least six specifications that you would apply to a solution. Suggest at least three concepts, complete with..
Find the total potential energy in terms of ?. Now find the quadratic functional for the equation (5.7(a)). Show that they differ by the inclusion of a "divergence-like" expression in the integrand. Compare the boundary conditions for each case.
A 15-tooth pinion cut with a 10-pitch, 25° hob drives a 45-tooth gear. Using a computer, calculate the backlash produced when the center distance is increased twin 3.000 in. to 3.030 in. by increments of 0.0010 in.
a soft drink bottling machine fills bottles with fluid volumes that are normally distrbuted with a mean of 250 ml and a
How much would it cost to deliver one kilo Watt-hour? How does this compare with the cost of energy from your local electric utility at $0.10 per kilo Watt-hour?
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