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Consider an opaque horizontal plate that is well insulated on its back side. The irradiation on the plate is 2500 W/m2 of which 500 W/m2 is reflected. The plate is at 227°C and has an emissive power of 1200 W/m2. Air at 127°C flows over the plate with a heat transfer convection coefficient of 15 W/m2 · K. Determine the emissivity, absorptivity, and radiosity of the plate. What is the net heat transfer rate per unit area?
The MIT varsity diving team is practicing their back flips on the Z-center's diving boards.The diving boards have a total length of 3 m, width of 0.5 m, and thickness of 0.1 m. The core of the boards is made of a Douglas fir wood with an estimated Yo..
a pump fitted with 50mm bore ball bearings uses an oil whose viscosity ranges from 100cst at cold pump start-up to
a can of aerosol deodorant contains one pound of a scented liquid that will vaporize and spray out when the top button
consider a non-ideal vapor-compression cycle where refrigerant 134a flows at a rate of 0.05 kgs. the refrigerant enters
Write down the transfer function of a third-order system with unity steady-state gain which has a real pole at s = -1 and a pair of complex poles at s = -1 +- ja. Simulate the open-loop step response of the system for 'a' values of 1, 2, 4, and 10, a..
1.3 kg block b is moving with a velocity v0 of magnitude v02ms as it hits the 0.6-kg sphere a which is at rest and
an aluminum extrusion dimensions 50x60 with 5 mm thick walls is spot welded to a thin aluminum plate by a single row of
1 current airbag regulations specify that they must only pass a test designed to protect a 175 pound male who is not
water flowing in a horizontal 30 cm diameter pipe at 5 ms and 300 kpa gage enters a 90o bend reducing section which
Describe IN DETAIL how you could determine the required rate of heat addition or removal.
a sky diver weighing m kg jumps from a moving aircraft at x meters above the ground. heshe initially free-falls for a
a 100kg pure iron block at 27 degrees c is dropped into an insulated rigid tank that contains 0.1m3 of unused engine
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