Engineering, 22.01.2022 07:50 Kkampudiaa
A mechanism composed of a vertical axis that rotates, supported by
fixed bearings, with angular velocity α& . At a point “O” of this vertical axis, a rod that rotates with angular velocity β and with respect to the vertical axis is fixedly pivoted. On this second rod is mounted a disk of radius r whose CG is denoted by the point “G”. The disk, in addition to rotating with respect to the rod with angular elocity θ , has a translational movement with respect to the rod. The position of the CG of the disk with respect to the pivot point “O” of the rod is defined as a distance L. Determine:
i) The absolute position vector of any point “A” on the periphery of the disk described in the inertial reference system;
ii) From the result found in item (i), the absolute linear velocity of point “A” obtained directly from the inertial reference system;
iii) The absolute angular velocity of the disk;
iv) The absolute angular acceleration of the disk;
v) The absolute linear acceleration of point “A” obtained directly from any mobile reference system;
Answers: 2
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Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
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During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
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Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency
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A mechanism composed of a vertical axis that rotates, supported by
fixed bearings, with angular ve...
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