3. Water at a pressure of 4.30 atm at street level flows into an office building at a speed of 0.75 m/s through a pipe 4.60 cm in diameter. The pipes taper down to 1.70 cm in diameter by the top floor, 22.0 m above. Calculate the water pressure in such a pipe on the top floor. Pa
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- 42. Water flows through a fire hose of diameter 6.35 cm at a rate of 0.012 m³/s. The fire hose ends in a nozzle of inner diameter 2.20 cm. What is the speed with which the water exits the nozzle?9. A liquid is flowing through a horizontal pipe whose radius is 2.22 x10-2 m. The pipe bends straight upward through a height of 9.8 m and joins another horizontal pipe whose radius is 3.82 x10-2 m. What is the speed of the liquid in the lower horizontal pipe if the pressure in both horizontal pipes is the same? x L0228) m/s
- QUESTION 9 A vertical, cylindrical pipe has a height of 2.0 m and a radius of 8.0 cm. Water flowing upward from the bottom of the pipe has a speed of 3.0 m/s. If the water pressure is 100 kPa at the bottom of the pipe and 60 kPa at the top of the pipe, at what speed is the water flowing when it reaches the top of the pipe? a. 5.82 m/s b. 7.05 m/s c. 8.10 m/s d. 9.43 m/s e. 12.5 m/s6. A solid aluminum bar weighs 89 N in air. a. What is its volume? b. If it is suspended from a rope and totally submerged in water, what is the tension in the rope?4. A garden hose having an internal diameter of 3.5 cm is connected to a lawn sprinkler that consist merely of an enclosure with 12 holes, each 0.5 cm in diameter. If the water in the hose has a speed of 3 m/s, at what speed does it leaves the sprinkler holes?
- 10. A 40 kg mass is attached to one end of a spring, which has a spring constant of 700 N/m. The other end of the spring is attached to the bottom of a full tank of water. The mass has a volume of 0.25 m3 and is completely submerged in the water.a. Will the mass float, sink, or remain stationary?b. If the mass sinks or floats, determine how far the spring will compress or stretch?A tank holds a large amount of water. A pipe is connected to the tank at the upper end and is open to the air at the lower end (see figure).The upper end of the pipe has a diameter of 17.0 cm. The lower end of the pipe has a diameter of 8.60 cm. The speed of the water at the upper end is 2.00 m/s.What is the flow rate of the water in the pipe?10. Water flows at a rate of 730.0 liters/min through a horizontal 5.80-cm diameter pipe under a pressure of 6.50 x105 Pa. At one point, calcium deposits reduce the cross-sectional area of the pipe to 8.50 cm?. What is the pressure at this point? Pa