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A steel strut is pinned at both ends. The strut has a solid circular cross section and is 6 m long. The strut collapses under a load of 100 kN. Calculate the diameter of the strut. assume E = 200 GPa.
Model a cup of coffee as a closed system containing 1 lbm of pure water at constant pressure of 14.7 psia. Using your knowledge of the 2nd Law, prove that it would be impossible for coffee at room temperature of 70 °F to heat up to 120 °F by receivin..
A flat belt is used to transmit a couple from pulley A to pulley B. The radius of each pulley is 60 mm, and a force of magnitude P = 900 N is applied as shown to the axle of pulley A. Knowing that the coefficient of static friction is 0.35
distance per tank of gas a car with a 20-gallon gas tank averages 21.5 miles per gallon when driven in own and 26.8
consider steady flow of a constant property fluid in a long duct formed by two parallel planes. consider a point
given an aerodynamic body you have learned in aerodynamics and flight mechanics how to apply the numerical source panel
Midrange and amplitude components, A shaft is subjected to a completely reversed bending stress such that Xmax=40kpsi and Xmin=-40kpsi
A sheet of cold worked copper has a ductility of 15%. If the sheet thickness is 3.4 mm, what were the dimensions of the cross-section before rolling?
Air undergoes a polytropic process in a piston cylinder from p1=1bar, T1=295K to p2=7bar. The air is modeled as an ideal gas and kinetic and potential energy effects are negligible. For a polytropic exponent of 1.6, determine the work and heat transf..
air from a workspace enters an air conditioner unit at 30 degc dry bulb and 25 degc wet bulb. the air leaves the air
Assume that the board weighs 25 kg and deflects 10 cm statically when the person stands on it. What is the static safety factor if the board material has an ultimate stress of 200 MPa in the longitudinal direction
The weight W causes a tension of 100lb in cable CD. If d= 2ft, what is the momentum about the z axis due to the force exerted by the cable CD at point C?
the inner and outer surfaces temperatures of a 0.5-cm thick 2-m x 2-m window glass in winter are 100c and 30c
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