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A tank is filled with 8m water (density water = 1000 kg/m^3) and 2 m oil...

A tank is filled with 8m water (density water = 1000 kg/m^3) and 2 m oil (density oil = 900 kg/ m^3).Flow is discharged at the bottom from a circular exit section with 5 mm diamter. Ignoring all frictional effects, determine the

a) Velocity in exit section if the top tank pressure is atmospheric

b) Flow rate in exit section if the top tank pressure is -25 kPa vacuum.

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