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Bar AB has a cross-sectional area of 1200 mm2 and is made of a steel that is assumed to be elastoplastic with E = 200 GPa and σY = 250 MPa. Knowing that the force F increases from 0 to 520 kN and then decreases to zero, determine
(a) the permanent deflection of point C,
(b) the residual stress in the bar.
An angled jet of water comes out from the ground at 3 m/s at a 45o angle from the horizontal. How high does the water reach? How fast is it going when it reaches back down to the ground? State your assumptions clearly and draw a sketch of how you ima..
A closed system contains 0.5 kg of nitrogen, initially at 150 KPa with a volume of 0.3 m^3. The system undergoes a poly tropic process resulting in the final state of 240 KPa and 100 C. Determine a) the poly tropic coefficient and b) the associated b..
A generator with a surface area of 30 m2 operating at steady state rotates a shaft at 2000 rpm producing a torque of 20,000 N-m and creates a current of 230 amps at 10,000 Volts. If the ambient temperature is 27 0C and the coefficient of heat transfe..
A pitot-Static tube is placed in a subsonic air flow. The static pressure and temperature in the flow are 80 kPa and 12 oC respectively. The difference between the pitot and static pressures are measured using a manometer and found to be 200 mm of me..
the jet engine mass m 400kg of a passenger airplane is attached to the planes wing by a connector that has an
A similar measurement is made applying the force parallel to one of the cube axes. Explain why the two measurements give different values of the elastic modulus.
Does this mean that F is a conservative force? Give reasons for your answer.
Five kilogram of saturated water vapor at 300 kPa is heated at constant pressure until its temperature reaches 200oC. Calculate the work done by the steam during this process.
heat transfer from a certain stationary system occurs at a rate of 50 kw. if the system performs work at a rate of 41
a hollow steel shaft 6 ft long has an outer diameter of 2.5 in. and an inner diameter of 1.5 in. the shaft is
an ideal rankine cycle produces 100 MW of power. If the steam enters the turbine at 100 bar and 500C and is condensed at 1 bar, determine the flow rate of stream and the thermal efficiency.
What is the difference between sensor less ECS and sensor end ECS. Can a motor with a sensor less ECS be programmed into a controller and be programmed autonomously?
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