19. Fluid Mechanics

Two hoses have been connected together. The first hose has a diameter of 4 cm, and the second has a diameter of $2.5\mathrm{cm}.$ If the water exits the narrower hose at a speed of $3.4\text{ m/s}$, how quickly is the water moving inside the wider hose?

A blood vessel has a radius of $5.0\mathrm{mm}.$ This blood vessel divides into two, each having a radius of $4.0\mathrm{mm}$. If the speed of the blood just before the split is $0.31\text{ m/s}$, what is the speed of blood just after the split?

Home Repair. You need to extend a 2.50-inch-diameter pipe, but you have only a 1.00-inch-diameter pipe on hand. You make a fitting to connect these pipes end to end. If the water is flowing at 6.00 cm/s in the wide pipe, how fast will it be flowing through the narrow one?

A soft drink (mostly water) flows in a pipe at a beverage plant with a mass flow rate that would fill 220 0.355-L cans per minute. At point 2 in the pipe, the gauge pressure is 152 kPa and the cross-sectional area is 8.00 cm^2. At point 1, 1.35 m above point 2, the cross-sectional area is 2.00 cm^2. Find the (b) volume flow rate. (c) flow speeds at points 1 and 2.

A shower head has 20 circular openings, each with radius 1.0 mm. The shower head is connected to a pipe with radius 0.80 cm. If the speed of water in the pipe is 3.0 m/s, what is its speed as it exits the shower-head openings?

Water is flowing in a pipe with a varying cross-sectional area, and at all points the water completely fills the pipe. At point 1 the cross-sectional area of the pipe is 0.070 m^2, and the magnitude of the fluid velocity is 3.50 m/s. (c) Calculate the volume of water discharged from the open end of the pipe in 1.00 hour.

In a system of flow tubes with varying lengths but identical cross-sectional areas, which flow tube length will have the greatest flow rate, assuming all other conditions are constant?

In a fluid flow system, if two sections of a pipe have similar cross-sectional areas, what can be said about the flow speed in these sections according to the continuity equation?