Liquid water at 200kpa and 15°c is heated in a chamber by mixing it with superheated steam at 200kpa and 150°c. liquid water enters the mixing chamber at a rate of 4.3kg/s, and the chamber is estimated to lose heat to the su air at 20°c at a rate of 1200 kj/min. if the mixture leaves the mixing chamber at 200kpa and 80°c determine (a)the mass flow rate of the superheated steam and (b) the rate of entropy generation during this mixing process.

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed