10 L/s 6 cm 30 m

PLEASE USE EQUATIONS ATTACHED 9.95. The mean velocity of water in a 150 mm horizontal pipe is 0.9 m/s. Calculate the loss of head through an abrupt con- traction to 50 mm diameter. If the pressure in the 150 mm pipe is 345 kPa, what is the pressure in the 50 mm pipe, neglecting pipe friction? K₁ from Table 2 for abrrupt contraction find Using work- energy equation Az A₂/A₁ C K₂ 21102392 A1 2.A? 81000.0 1J0321 to 19 1200 to find the pressure. 14 or. Mive stolwlog si/s919 mE.0 P but mop, +V² F 2 P₂ + Cup 2.10 erived one wolf 829) NINY 2.0 = 9 . TABLE 2 Contraction, C., and Loss, Kr, Coefficients for Abrupt Contractions 0 0.617 0.50 0.1 0.624 0.46 0.2 0.632 0.41 0.3 0.643 0.36 0.4 0.659 0.30 V₂² + Z₂ +h₁0/₂ 2 milyot has 9919 0.5 0.681 0.24 0.6 0.712 0.18 0.7 0.755 0.12 0.8 0.813 0.06 0.9 0.892 0.02 1.0 1.00 0

A cylindrical tank of water is 20 m in diameter and 3.5 m tall. There is a 1.0 cm diameter hole at the bottom from which water is leaking. A feeder pipe at the top of the tank, 4.0 m above the ground delivers water at a rate of 0.02 m/min. Ir the tank is initially half full, tal what is the water flow rate in m^3/sec from the top feeder pipe? (bi what is the pressure at the bottom of the tank? (Hint: Bernoul's principle) () what is the water speed at the bottom? (d) what is the leaking flow rate at the bottom? fe) at what rate is the volume of water changing? (Assume the tank is open to air at the top)

Along a 50-m pipeline, there is a half-open globe valve (K = 10), four 90-degree smooth bends (K = 0.45), and six 45-degree elbows (K = 0.15). Ignoring the major head loss, what will be the pressure drop in this pipe if the flow velocity is 1 m/s? Fluid is water: Specific weight = 9810 N/m³. O 0 kPa O 6.35 kPa O 13.81 kPa O 21.67 kPa