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A spherical communication satellite with a diameter of 2.5m is orbiting around the earth. The outer surface of the satellite in space has an emissivity of 0.75 and a solar absorption of 0.10, while solar radiation is incident on the spacecraft at a rate of 1000 W/m^2. If the satellite is made of material with an average thermal conductivity of 5 W/mK and the midpoint temperatureis 0 degrees celcius, determine the heat generation rate and the surface temperature of this satellite. Assume the temperature in space as 0 Kelvin.
Determine the normal force R between the wheel and the horizontal surface. Neglect the weight of the horizontal shaft.
Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an elliptically shaped surface crack of length 0.16 mm and that has a tip radius of curvature of 0.002 mm when a stress of 1..
consider the thin-walled beam section illustrated in the figure below. the beam has a vertical load of v 500 kn acting
1 kg of air is allowed to expand reversibly in a cylinder behind a piston in such a way that the temperature remains
a 15-hp shaft pump is used to raise water to a 45-m higher elevation.if the mechanical efficiency of the pump is 82
Vector integral - stokes therom, Evaluate the line integral by stokes theorem (clock wise as seen by a person standing at the origin).
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must be added to vanadium to yield an alloy that contains 1.55 x 1022 Nb atoms per cubic centimeter. The densities of pure Nb and V are 8.57 an..
the image for this problem can be found through this link httpimgur.comfqjt0w5 please show all workformulas so that i
one pound mass of water in a piston-cylinder assembly initially a saturated liquid at 1 atm undergoes a
a piston cylinder system containing 0.5 kg of air is compressed from a volume of 0.35 m3 to a volume of 0.1 m3. if the
Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.
Determine the resulting change
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