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At a given section a shaft is subjected to a bending stress of 20 MN/m2 and a shear stress of 40 MN/m2. Determine:
(a) the principal stresses;
(b) the directions of the principal planes;
(c) the maximum shear stress and the planes on which this acts;
(d) the tensile stress which, acting alone, would produce the same maximum shear stress;
(e) the shear stress which, acting alone, would produce the same maximum tensile principal stress.
Gate AB in fig 2 is a one-quarter circle, 5 m wide into the paper, hinged at B and resting on a smooth wall at A. Find the total horizontal force on the surface.. Find the total vertical force on the surface.
seawater containing 3.50 wt salt passes through a series of 10 evaporators. roughly equal quantities of water are
Design choices and dimensioning, as well as manufacturing methods should reflect the aspect of cost -
a construction vehicle of mass 30 mg is used to unload sand in a horizontal line through a port on the bottom of the
1.7 lbm object falling at 162 fts enters a viscous liquid and is essentially brought to rest before it strikes the
Magnesia (MgO) has a melting point of 2825C. Applications include refractory bricks, crucibles, cements, thermocouple protection tubes, brake linings, plasma display screens and substrates for thin-film formation. Identify the cation and anion and gi..
the angle between the direction of motion of a conductor and the lines of flux is 30deg. the length of the conductor in
How will notches and holes affect the deflection of a cantilever beam? ie. increase or decrease? (Please provide citations)
0.112m^3 of gas has a pressure of 138kN/m^2. It is compressed to 690kN/m^2 according to the law PV^1.4 = C. Determine the new volume of the gas.
1 a window of building loses 1.2 julessec of heat during 24 hours period time. determine heat loss during this in kj?2
Using the two theoretical predictions of fracture strength, (A) σt = E/π (Equation ( 14.4)) and (B) σt = √(γE/ao) (Equation (14.8)), calculate the theoretical fracture strength of (a) iron and (b) MgO.
an ideal cold air-standard brayton cycle engine operates with air entering the compressor at 27 c. the pressure ratio
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