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The outside wall of a refrigerated storage room is 10m long and 3m high and is constructed with 100-mm concrete blocks ( k=0.935W/m C) and 10 cm of fiber insulation board (k=0.048W/m C). The inside temp of the room is - 10 C and the convective heat transfer coefficient is 40 W/m2 K; the outside temp is 30 C with a convective heat transfer coefficient of 10 W/m2K on the outside wall surface. Calculate the overall heat-transfer coefficient. Please show work.
the 2 mg car increases its speed uniformly from rest to 25 ms in 30s up the inclined road. determine the maximum power
a cylindrical nuclear fuel rod of 1 cm in diameter is encased in a concentric tube of 2 cm in diameter where cooling
the acceleration due to gravity at an altitude y above the surface of the earth is given byymnbspnbspnbsp
determine the pressure exerted on a diver at 30 m below the free surface of the sea. assume a barometric pressure of
write a user-defined function that calculates grade point average gpa on a scale of 0 to 4 where a4 b3 c2 d1 e0 and.
steam at 75kpa and 13 percent quality is contained in a spring loaded piston-cylinder device with an initial volume of
a 20 mw radial flow hydraulic turbine is to be designed with a head of 70 m and a speed of 90 rpm. a geometrically
electronic components mouted on a flat plate are cooled by convection to the surroundings and by liquied water
Determine the natural frequencies of the system. For the baseline system I get natural frequencies at the following engine speeds: 435, 2026, 2818, 5225, 7093, 10245, and 12153 rpm.
a 12x36 and 9 high empty prism composed of a material with an elastic modulus of 345000 psi 9000 psi yield stress the
draw the shear and bending-moment diagrams for the beam and loading shown and determine the maximum normal stress due to bending.
a monometer is attached to a tank of gas in which the pressure is greater than that of the surroundings. the manometer
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