Please Answer the following question step-wise with detailed explanations. Thanks in advance A pipe that carries water, has section of radius r₁ = 12.5 mm; it is narrowed, so the section has radius r2 = 9 mm. Calculate a) the flow rate of the duct, knowing that v₁ = 1.8 m/s. b) If the relative pressure in section "1" is 51 kPa, what is the relative pressure in section "2" ?

Please Answer the following question step-wise with detailed explanations. Thanks in advance A pipe that carries water, has section of radius r₁ = 12.5 mm; it is narrowed, so the section has radius r2 = 9 mm. Calculate a) the flow rate of the duct, knowing that v₁ = 1.8 m/s. b) If the relative pressure in section "1" is 51 kPa, what is the relative pressure in section "2" ?