Refrigerant 134a enters a compressor operating at steady state
assaturated vapor at 0.12mpa and exits at 1.2mpa and 70c at a
masflow rate of 0.108kg/s. as the refrigerant passes through
thecompressor, heat transfer to the surroundings occurs at a of
0.32kj/s. determine at steady state the power input to the
compressor, in kw.

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