Two garden hoses of different diameter are needed to reach a flower bed. Water flows with a speed of 1.2m/s through the bottom section of a garden hose that goes up a step 20.0 cm high. The cross-sectional area of the hose at the top of the step is half that at the bottom of the step. If the water pressure is 143 kPa at the bottom of the step, what is its pressure and velocity at the top of the step?
Volume flow velocity (A*v) of water will be same everywhere.
pi x r^2 x 1.2 = pi x (r/2)^2 x v
v = 4 x 1.2 =4.8 m/s ...........Ans
Using bernoulli's equation,
P + row*gh + row*v^2 /2 = constant
for bottom = for top
143 x 10^3 + 1000 x 9.81 x 0 + 1000 x 1.2^2 /2 = P + 1000 x 9.81 x 0.20 + 1000x 4.8^2 /2
P = 130238 Pa .......Ans
Two garden hoses of different diameter are needed to reach a flower bed. Water flows with...
Question 14 Water (15°C) flows through a garden hose (ID = 14 mm) with a mean velocity of 1.25 m/s. Find the pressure drop for a section of hose that is 20 meters long and situated horizontally. Assume that f = 0.012. kPa Click here to access the appendices. the tolerance is +/-2%
A) Water moves in a pipe that has a diameter of 34 cm at 1 m/s, but then the pipe reduces to a diameter of 16 cm. Find the velocity of the water in the smaller portion of the pipe. B) Water in a hose with an area of 186 mm2 moves at 4 m/s, but then you cover part of the opening of the hose with your finger, and the water shoots out faster at 26 m/s . Find...
Water flows at 0.25 L/s through a 7.0- m -long garden hose 2.0 cm in diameter that is lying flat on the ground. The temperature of the water is 20 ∘ C . What is the gauge pressure of the water where it enters the hose?
Water flows at 0.20 L/s through a 12-m-long garden hose 2.5 cm in diameter that is lying flat on the ground. The temperature of the water is 20 ∘C. What is the gauge pressure of the water where it enters the hose?
Water flows at 0.25 L/s through a 12-m-long garden hose 2.0 cm in diameter that is lying flat on the ground. Part A The temperature of the water is 20 ∘C. What is the gauge pressure of the water where it enters the hose?
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Water flows through a pipe shaped as shown here. The pressure at the lower end of the pipe is 296 kPa and the fluid velocity is 5.00 m/s. The upper end of the pipe is 0.600 m higher and the cross-sectional area is 1/3 of the area at the lower end. Calculate the velocity at the upper end of the pipe. 15 m/s Calculate the pressure at the upper end of the pipe.
Water flows at a rate of 660.0 liters/min through a horizontal 6.00-cm diameter pipe under a pressure of 5.50 × 105 Pa. At one point, calcium deposits reduce the cross-sectional area of the pipe to 6.50 cm². What is the pressure at this point? Pa
Quiz ch. 13 1) The Titanic was found lying on the bottom of the North Atlantic at a depth of 7.4 km What is the pressure at this depth? (P -1.01* 10 Pa Pe - 1025 kg/m) p. Pat pan a) 1.75*10* Pa b) 7.53x10 Pa 7.44*10' Pa d)1.01 10 Pa 740 3. COK + 10 25 X 18K 740 2) During a complete heart pumping cycle, the pressure in the heart is: a) constant b) at its maximum value...
10. Water flows at a rate of 610.0 liters/min through a horizontal 5.10-cm diameter pipe under a pressure of 6.20x10^5 Pa. At one point, calcium deposits reduce the cross-sectional area of the pipe to 5.50 cm². What is the pressure at this point?