Two three-phase generators supply a three-phase load through separate three-phase lines. the load absorbs 30 kw at 0.8 power factor lagging. the line impedance is (1.4 + j1.6) ω per phase between generator g1 and the load, and (0.8+j1) ohm between generator g2 and the load. if generator g1 supplies 15 kw at 0.8 power factor lagging with a terminal voltage of 460 v line-to-line, determine

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false