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Question $2$: Hydrodynamics $-$ answer all questions

A pipe has a flow rate $Q=x$ litres$/$s and contains a horizontal bend of $90.$ At the bend, it also changes in diameter from $165mm$ to $130mm$ in the direction of the arrow in the Figure below. Assume ideal flow. If the pressure before the bend is $140$ kPa determine:

$($a$)$ The velocities on both sides of the bend

$[5$ marks$]$

$($b$)$ The pressure after the bend

$[5$ marks$]$

$($c$)$ The magnitude and direction of the force on the bend

$.[10$ marks$]$

$[$to obtain X$,$ take the sum of the digits of your student number$]$

ish $($United States$)$

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