Water flows through a horizontal tube of diameter 2.7cm that is joined to a second horizontal tube of diameter 1.3cm. The pressure difference between the tubes is 7.0kPa Find the speed of the flow in the first tube. Express answer using two significant figures.

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Water flows from a fire truck through a hose that is 11.7 cm in diameter and has a nozzle that is 2.0 cm in diameter. The firemen stand on a hill 3.0 m above the level of the truck. When the water leaves the nozzle, it has a speed of 20.0 m/s. 1) Determine the minimum gauge pressure in the truck's water tank. (Express your answer to two significant figures.) Pa Submit

Problem 3: Water flows through a horizontal cylindrical pipe from a smaller-diameter region to a larger-diameter region. At point A, where the pipe's diameter is 3.5 cm, the water's speed at 25.0 m/s. At point B, the pipe's diameter is 7.0 cm. (a) What is the water's speed at point B? (b) What is the pressure difference between points A and B? Which point has the greater pressure?

A liquid-filled tube called a manometer can be used to measure the pressure inside a container by comparing it to the atmospheric pressure and measuring the height of the liquid. Such a device (filled with water) is shown in the figure, measuring the pressure inside a balloon filled with an unknown gas. The water level on the side of the manometer which is open to the air is 22.3 cm higher than on the side connected to the balloon. a) Find the gauge pressure in the balloon, in units of Pa. Recall the density of water is 1000 kg/m3.  b) Find the absolute pressure in the balloon, in units of Pa.

Suppose you have a 8.8 cm diameter fire hose with a 3.6 cm diameter nozzle. a) Calculate the pressure drop due to the Bernoulli effect as water enters the nozzle from the hose at the rate of 40.0 L/s. Take 1.00 × 103 kg/m3 for the density of the water. b) To what maximum height, in meters, above the nozzle can this water rise? (The actual height will be significantly smaller due to air resistance.

When a person inhales, air moves down the bronchus (windpipe) at 13.8 cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the pressure drop in the constriction. Neglect the change of pressure due to change in height ?y in the wind pipe. If the pressure goes down then the pressure drop is negative. Use 1.20 kg/m33 for the density of air.

Water travels through a pipe at 11.1 m/s. The pipe expands from a crossectional area of 1.5 m2 to an area of 12.0 m2. What is the speed of the water in the second part of the pipe in m/s? How much is the pressure change in KPa as the pipe expands? The density of water is 1000 kg/m3. Enter a positive value for an increase in pressure, a negative value for a decrease.

Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 1.6 cm, and the radius of the nozzle is 0.67 cm. The speed of the water in the pipe is 0.58 m/s. Treat the water as an ideal fluid, and determine the absolute pressure of the water in the pipe. P₁ = Jaka