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A coil spring is stretched by two equal and opposite forces F=120N. The wire diameter is 5 mm and the mean coil diameter is 40 mm. Draw a free body diagram of the spring cut near the point A and identify the internal forces and moments transmitted across the cut. Hence determine the magnitude and location of the maximum shear stress at the cut. Assume that the shear force V causes a uniform shear stress V/A, where A is the cross-sectional area.
calculate the radius of an silver atom in cm given that ag has an fcc crystal structure a density of 10.5 gcm3 and an
Give two advantages of preheating the water in this way and one disadvantage and give two reasons why the presence of any sulphur in the fuel mix would be undesirable.
Determine heat flow, Heat flow through a uniform wall will: a) increase as the thermal resistance increases b) increase as the thickness of the wall increases
a refrigerant 134a at 140 kpa and -10 degree celcius is compressed by an adiabatic 16kw compressor to an exit state of
a frictionless piston-cylinder device fitted with stops above the piston contains 1.2 kg of air at 200degc and 700 kpa.
consider the equation dydt y2y2-1 a- determine the equilibria and classify each one as asymptotically stable unstable
what is the sine wave generated by a phasor of length 9, rotating with an angular velocity of 325 rad/s; and with the phase angle of 0."
p8mpa and t500 degc and leaves at 40 kpa as saturated vapor. if the flow rate is 11.1 kgs and the power generated by
A hot upsetting of stainless steel 316/316L, 2000mm dia disc, 200mm thickness is upset at 1200 degree Celsius to 150mm thickness. what will be the Upsetting force required to forge this disc and what will be the yield stress at this temperature.
a tank has a volume of 0.35m3 and initially contains saturated vapor at 333 kpa. the valve is next opened and steam
consider a l0-plate fuel cell stack at an anode stoichiometry of 1.2 with 20 a current generated in the stack and a
What are stress concentrations, what causes them, and why should engineers be concerned about them?
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