PROBLEM 3: A Venturi meter is a device used to measure the flow rate of a fluid. Water flows through a pipe of diameter 9.0 cm that has a constriction of diameter 5.2 cm. The two parts of the pipe are connected with a U-tube manometer which is partially filled with mercury. The difference in the mercury level in the U-tube is 2.5 cm. PHe = 13.6 x 10' kg/m' Pw- 1x 10' kg/m' Find the flow speed of the water in the pipe of 9.0 cm diameter. h Hg
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- The water of a 14’ × 48’ metal frame pool can drain from the pool through an opening at the side of the pool. The opening is about h = 1.11 m below the water level. The capacity of the pool is V = 3880 gallons, the pool can be drained in t = 10.2 mins. P0 is the pressure of the atmosphere. ρ is the density of the water. a) Write the Bernoulli’s equation of the water at the top of the pool in terms of P0, ρ, h. Assuming the opening is the origin. b) Write the Bernoulli’s equation of the water at the opening of the pool in terms of P0, ρ, h and v, where v is the speed at which the water leaves the opening. Assuming the opening is the origin. c) Express the flow rate of the water in terms of V and t. d) Calculate the numerical value of A in cm24. A closed tank contains compressed air and oil (SG=0.90) as shown. A u-tube manometer using Mercury ( SG= 13.6) is connected to the tank. The column heights are h;= 36 in, h2= 6 in, h3-9 in. Determine the pressure reading (i n psi) of the gauge. Pressure gage Air Орen Oil (2) (1) HEThe drawing shows an intravenous feeding. With the distance shown, nutrient solution (p = 1020 kg/m³) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury. Atmospheric pressure 0.610 m Number i Units
- 91. A U-tube contains liquid of unknown density. An oil of density 780 kg/m³ is poured into one arm of the tube until the oil column is 11.5 cm high. The oil-air interface is then 5.0 cm above the liguid level in the other arm of the U-tube. Find the density of the liquid. kg/m3 0741 na741 na41na74na74 741 na741 na74 n741 na741 741 na741 na741 na7 0741 na741 nA stiff, 10-cm-long tube with an inner diameter of 3.0 mm is attached to a small hole in the side of a tall beaker. The tube sticks out horizontally. The beaker is filled with 20°C water to a level 45 cm above the hole, and it is continually topped off to maintain that level. What is the volume flow rate through the tube?
- Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A1is 1 square inch, and the area A2 is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown. The pressure on A1 in psi is a. 0.25 b. 0.4 c. 4 d. 10 e. 40 The pressure on A2 in psi is a. 0.25 b. 0.4 c. 4 d. 10 e. 40Problem 5: The water of a 14' x 48° metal frame pool can drain from the pool through an opening at the side of the pool. The opening is about h = 1.19 m below the water level. The capacity of the pool is V= 3870 gallons, the pool can be drained in t = 12.9 mins. Po is the pressure of the atmosphere. p is the density of the water. Part (a) Write the Bernoulli's equation of the water at the top of the pool in terms of Po. p, h. Assuming the opening is the origin. HOME a b d. 4 5 h 1 k 1 3 P Ро Po+ END V Vol BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Part (b) Write the Bernoulli's equation of the water at the opening of the pool in terms of Po. p, h and v, where v is the speed at which the water leaves the opening. Assuming the opening is the origin. Part (c) Express v in terms of g and h. Part (d) Calculate the numerical value of v in meters per second. Part (e) Express the flow rate of the water in terms of V and t. Part (f) Express the cross-sectional area of the opening, 4,…The entrance opening of a horizontal pipe has a radius of 6 cm and water is flowing at .35 m/s. The pressure at opening is 18.5 n/m2 and changes to 23.0 N/m2 at the exit. What is the area of the exit opening?
- An outdoor, rectangular pool on campus is 4.5 meters [m] in width and 7.5 meters [m] in length. You may assume the depth of the pool is constant. If the pool is filled with pure water, the total pressure probe at the bottom of the pool reads 16.5 pound-force per square inch [psi]. What is the volume of the water in the pool in units of kiloliters [kL]? Length Force Mass Pressure 1 ft=12 in 1 N=0.225 lbf 1 kg=2.205 lbm 1 atm=101325 Pa 1 in=2.54 cm 1 slug = 14.5939 kg 1 atm=14.7 psi 1 m=3.28 ft Density of water=1000 kg/m3 Surface pressure=1 atmA Venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at speed v2 through a horizontal section of pipe whose cross-sectional area is A2 = 0.0937 m2. The gas has a density of ρ = 1.30 kg/m3. The Venturi meter has a cross-sectional area of A1 = 0.0234 m2 and has been substituted for a section of the larger pipe. The pressure difference between the two sections is P2 - P1 = 149 Pa. Find (a) the speed v2 of the gas in the larger original pipe and (b) the volume flow rate Q of the gas. I posted it just now and recieved the wrong answers so i'm asking again. The answers are not A) 1.87 and B) 0.157.A tank holds a large amount of water. A pipe is connected to the tank at the upper end and is open to the air at the lower end (see figure).The upper end of the pipe has a diameter of 17.0 cm. The lower end of the pipe has a diameter of 6.80 cm. The flow rate of the water in the pipe is 0.0500 .What is the speed of the water at the lower end of the pipe?