1. If the specific weight of a liquid is 8.1kN/m_­­­­³, what is its density?

1. If the specific volume of a gas is 0.70 m³/kg, whatis its specific weight in N/m³?

1. If a certain liquid weighs 8600 N/m³, what are thevalues of its density, specific volume, and specific gravityrelative to water at 4⁰C?

1. At a depth of 12 m of a solvent the pressure at the bottom ofthe covered storage tank due to the solvent was 350 kPa. Calculatedensity of the solvent.

1. At what depth within a salt water solution will the gaugepressure be equal to three times the atmosphericpressure?                    
   ρ salt water=1100kg/m³Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â atmospheric pressure =101,325 Pa

1. How large must a heating duct be if air moving 3 m/s along itcan replenish the air in a room of 300 m³ volume every15 minutes? Assume the air’s density remains constant.

1. Water is flowing in a fire hose with a velocity of 1.0 m/s anda pressure of 200000 Pa. At the nozzle the pressure decreases toatmospheric pressure (101300 Pa), there is no change in height. Usethe Bernoulli equation to calculate the velocity of the waterexiting the nozzle.   

1. At Petrojam, fuel is flowing through a pipe at a velocity of 1m/s and a pressure of 101300 Pa. They need the fuel to be at apressure of 3 atm (202600 Pa) on a lower level. How far must thepipe drop in height in order to achieve this pressure if thevelocity does not change? The density of the fuel is 789kg/m3.