(Originais Teachy 2023) - Question Very Easy of Physics

In an industrial facility, a piping system is employed to transport water for cooling machinery. The primary pipe has an inner diameter of 0.5 meters, and the water moves at a steady speed of 4.0 m/s. At a certain junction, the main pipe divides into two branches: the first has a diameter of 0.3 meters, while the second has a diameter of 0.2 meters. Taking into account the continuity of the flow and assuming there are no losses in volume, calculate the water velocities in each branch after the split of the main pipe.

A block of mass m is released from rest at the top of an inclined ramp at an angle θ to the horizontal. As it moves down the ramp, the block covers a distance s until it hits a flat surface with a coefficient of friction μ. After travelling a distance d along the flat surface, the block ascends a second ramp sloped at the same angle θ. Taking into account the conservation of mechanical energy through the descents and ascents, along with the effect of the friction force on the flat surface, what is the maximum height h that the block reaches on the second ramp?