Gardeners are holding a nozzle at the end of a hose to wash way mud from landscaping. The nozzle exit has a diameter of 10cm and the water is flowing at a rate of 12 m3/min. In this situation, what is the average water exit velocity and what is the horizontal resistance force required to hold the nozzle? Any help would be great

As shown in the following figure, a pipe of cross-sectional area A = 0.01 m2 and atotal length of 5.5 m is used for siphoning water from a tank. The discharge from the siphonis 1.0 m below the level of the water in the tank. At its highest point, the pipe rises 1.5 mabove the level in the tank.(a) What is the water velocity v (m/s) at the discharge? (b)  What is the lowest gauge pressure (in bars) in the tube?  And wheredoes it occur? Neglect pipe friction. Is the lowest pressure higher than the vapor pressureof water at room temperature?(c) If the siphon reaches virtually all the way to the bottom of the tank (but is notblocked off), is the time taken to drain the tank equal to t = V/Av, where V is the initialvolume of water in the tank, and v is still the velocity (e.g., 4.43 m/s) as computed abovewhen the tank is full? Explain your answer.(d) A siphon can drain the liquid in the tank, which means that the liquid flowsupward at the right-hand side of the tube. It appears to be…

A two storey building has two faucets, one in the basement and one in the firstfloor. The maximum water (ρ = 1000 kg/m3) velocity at the basement faucet, when the first floor faucet is closed, is 13 m/s. The faucet diameter is 1.5 cm.Neglect all losses. What would be a maximum height (from the basement floor) for a faucet,to still get a maximum exit velocity of 6 m/s?

Water passes through a 2.5 cm (inner diameter) horizontal tube at a speed of 6.0 m/s. Water continues to flow into the part where the diameter suddenly increases. There is no device to add or remove one type of energy. If the diameter of the flow below is 5 cm, what is the change in the enthalpy of the water? What would happen if it was 10cm? What is the maximum enthalpy change due to sudden expansion of the tube? How does this change affect the temperature of the water (how many K)?

In Fig. is shown a plot of pump net head as a function of pump volume flow rate, or capacity. On the figure, label the shutoff head, the free delivery, the pump performance curve, the system curve, and the operating point.

On a trip to the beach (Patm 1 atm or 101.3 kPa), a car runs out of gasoline and it is necessary to siphon gasoline from a Good Samaritan's car. The siphon is a hose with a small diameter and to start the action it is necessary to insert one end into the tank full of gasoline, fill the hose with it through suction and then put the other end in a can that is placed under the tank level. The difference in pressure between point 1 (on the free surface of the gasoline in the tank) and point 2 (at the outlet of the tube) causes the liquid to flow from the highest elevation to the lowest. In this case, point 2 is located 0.75 m below point 1, and point 3 is 2 m above 1. The siphon diameter is 4 mm and friction losses in it must be ruled out. Determine: a) theminimum time to bring 4 L of gasoline from the tank to the can and b) the pressure at point 3. The density of the gasoline is 750 kg / m3.

A pipe of 0.25 m diameter carries water at the rate of 7.2 m3/s.The pressure head at the entry of the venturimeter, used to measure the flow rate in the pipe, is equivalent to 6 m of water. If the pressure head at the throat is zero, calculate the throat diameter of the venturi.Include fbd.

Using a flexible drinking straw and a ruler, explain how you would measure the water flow velocity in a river.