A 3 m high tank filled with water has a discharge valve near the bottom and another near the top.
A) If these 2 valves are opened, will there be any difference between the discharge velocities of the 2 water streams?
B) If a hose whose discharge end is left open on the ground is first connected to the lower valve and then to the higher valve, will there be any difference between the discharge rates of water for the 2 cases? Neglect frictional effects.