Aliquid enters one end of a tube, where the diameter is
11.2cm, at a speed of 5.0 m/s. what is the speed of the lliquidas
it exits the other end of the tube where the diameter is
17.5cm?

Explanation:

given,

diameter of inlet = 11.2 cm

                     r₁ = 5.6 cm

                     r₁ = 0.056 m       ∵ 1 cm = 0.01 m  

speed of inlet = 5 m/s

diameter of outlet = 17.5 cm

                    r₂ = 8.75 cm

                    r₂ = 0.0875 m       ∵ 1 cm = 0.01 m  

speed of outlet = ?

using continuity equation

 A₁ v₁ = A₂ v₂

 π r₁² v₁ = π r₂² v₂

Velocity of liquid at the outlet of the tube is equal to 3.2 m/s