A plastic piece is floating at the interface of wáter (SG =1.00) and fluid A (SG unknown) as shown in figure. What is the specific gravity of fluid A if 45 % the plastic piece is immersed in water. Air temperature and pressures are 25 C and 1 atm. The specific gravity of plastic is = 0.87.

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.