Water flows steadily from a large tank through a horizontal smooth pipe, then discharges to atmosphere. The inside diameter of the pipe is D=3.18 mm, and the length is L=15.3 m. The volume flow rate of water in the pipe is 5×10-6 m3/s. The density of water is 998 kg/m3 and the viscosity of water is 0.001 kg/m. s. The gravity constant is 9.81 m/s2. The kinetic energy correction factor is 2, and the loss coefficient at the pipe entrance is 1.4. Determine the water level H in the tank.

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.