Traditional Culture Encyclopedia - Hotel accommodation - (20 10? As shown in the picture, the water tower and water pipe form a communication device. If the water level in the water tower is h 1= 18m, the height of the faucet outlet on the fifth floor is h.
(20 10? As shown in the picture, the water tower and water pipe form a communication device. If the water level in the water tower is h 1= 18m, the height of the faucet outlet on the fifth floor is h.
(1) Water depth at the faucet of the fourth floor: h = h1-H3 =18m-10m = 8m,
The water pressure is: p = rhogh =1.0×103kg/m3×10n/kg× 8m = 8×104pa,
(2) Cross-sectional area of faucet: s = π R2 = 3.14× (1×10-2m) 2 = 3.14×/kloc-0-4m2.
Water pressure: f = PS = 8×104pa× 3.14×10-4m2 = 25.12n.
Answer: (1) The tap outlet on the fourth floor has a water pressure of 8×104 Pa;
(2) The water pressure at the faucet outlet on the fourth floor is 25. 12N.
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