1–45

1–45 The absolute pressure in water at a depth of 5 m is
read to be 145 kPa. Determine (a) the local atmospheric pressure, and (b) the absolute pressure at a depth of 5 m in a liquid whose specific gravity is 0.85 at the same location.
ANS
1-45The absolute pressure inwater ata specified depth isgiven. The localatmospheric pressure and the
absolutepressure atthe samedepth ina differentliquid are tobe determined.
Assumptions  The liquid and water are incompressible.
Properties The specific gravityof the fluid isgiven tobe SG = 0.85. Wetake the densityof water tobe
1000 kg/m
3
. Thendensity ofthe liquidis obtainedbymultiplying its specific gravity by the density of
water,