A) Water moves in a pipe that has a diameter of 35 cm at 1 m/s, but then the pipe reduces to a diameter of 6 cm. Find the velocity of the water in the smaller portion of the pipe. B) Water in a hose with an area of 144 mm2 moves at 1 m/s, but then you cover part of the opening of the hose with your finger, and the water shoots out faster at 27 m/s . Find the area of the opening between your finger and the end of the hose in mm2. Note: you can leave the areas in mm2 since they'll cancel out.   C) Water moves in a pipe from the ground up to a height of 17 m. At the bottom of the pipe the water has a velocity of 2 m/s. As the pipe goes up it reduces in diameter and at the top of the pipe it has a velocity of 8 m/s and a pressure of 240000 Pa. Find the necessary pressure at the bottom of the pipe to deiver the water to the top.  (density of water = 1000 kg/m3

A student fills a tank of radius r with water to a height of h1 and pokes a small, 1.0 cm diameter hole at a distance h2 from the bottom of the tank. The water flows out of the small hole into an empty, 0.2 m-diameter container placed below the tank.  The student uses a garden hose to keep the water level in the tank at the original height.    What is the velocity of the water as it leaves the hole near the bottom of the tank?  let h1=0.55m let h2=0.12m r=0.5m 2. What is the volume flow rate of water from the garden hose into the tank? (Hint: What is the flow rate out of the tank?)  3. After 60 seconds of operation, what is the water pressure at the bottom of the container that is being used to catch the water leaving the tank?    let h=1.7m

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.

Water flows in a branched pipe as shown in Figure Q10 below. The water flows from Pipe A with a 185 mm diameter dividing Into two smaller pipelines, Pipe D with a 95 mm diameter and Pipe B with an 83 mm diameter. The velocity in the 83 mm pipe (B) is 0.7 m/s and in the 95 mm pipe (D) is 0.55 m/s. Calculate the velocity in m/s and the mass flowrate in kg/s in the 185 mm pipe (A) if the density of the water is 1000 kg/m³. Enter your answers to three significant figures. Velocity: Mass Flow Rate: m/s. kg s-¹.

A horizontal board of negligible thickness and area 2.0 m2 hangs from a spring scale that reads 80 N when a 4.0 m/s wind moves above the board. The air below the board is stationary. When the wind stops, the scale reads AnswerN. The density of air is 1.25 kg/m3 and treat the air as an ideal fluid   I did not understand my class's explanation. can you please explain this?

2. DETAILS S An incompressible fluid flows with velocity 12.00m through a round pipe with radius 2.30cm. If the pipe changes size and has a new, smaller radius of 0.20cm, what is the speed of the fluid moving through the narrower segment of pipe? m S What is the total volume flow rate for this pipe, in units of O 19.94- 11965698.10 L min L min L min 0.02- 1196.57- L min 1.20- L min L min MY NOTES (1000L=1m³ )? ASK YOUR TEACHER

4.0 mm 16. Consider the following diagram. (let air be an ideal, incompressible fluid) 2.0 cm 1200 cm'/s a. If the air is found to have a flow rate of 1200 cm3/s as it leaves the 4.00 mm diameter pipe, what is the velocity of the air in both segments of the pipe? b. If the density of air is 1.28 kg/m3 and the end of the pipe on the right opens up to the atmosphere, what is the pressure of the pipe at the 2.00 cm diameter section? C. If the fluid in the bottom of the U-tube is mercury with a density of 13,600 kg/m3 what is the difference between the surface levels of both sides of the tube, marked as h in the diagram?

Two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a valve that is closed. Both containers are filled initially to the same height of 1.00 m, one with water, the other with mercury, as the drawing indicates. The valve is then opened. Water and mercury are immiscible. Determine the fluid level in the left container when equilibrium is reestablished. Number Units Water Valve Mercury 100 m 4