Water flows through a horizontal pipe of cross-sectional area 10.0 cm 2 at a pressure of 0.250 atm with a flow rate is 1.00 l/s. at a valve, the effective cross-sectional area of the pipe is reduced to 5.00 cm 2. what is the pressure at the valve? the density of water is 1000 kg/m 3, and treat it as an ideal incompressible fluid.

Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?