Calculate the fluid force on one side of a 4 ft by 4 ft square plate if the plate is at the bottom of a pool filled with a fluid having a weight density 62.4- lb to a depth of 7 ft ft and a. lying flat on its 4 ft by 4 ft side. b. resting vertically on a 4 ft edge. c. resting on a 4 ft edge and tilted at 45 degrees to the bottom of the pool. a. Answer= LB b. Answer = LB, (Enter answer as floating point with 1 decimal place (use 0 as needed)) c. Answer = LB, (Enter answer as floating point with 2 decimal place (use 0 as needed)) ہے

Calculate the fluid force on one side of a 4 ft by 4 ft square plate if the plate is at the bottom of a pool filled with a fluid having a weight density 62.4- lb to a depth of 7 ft ft and a. lying flat on its 4 ft by 4 ft side. b. resting vertically on a 4 ft edge. c. resting on a 4 ft edge and tilted at 45 degrees to the bottom of the pool. a. Answer= LB b. Answer = LB, (Enter answer as floating point with 1 decimal place (use 0 as needed)) c. Answer = LB, (Enter answer as floating point with 2 decimal place (use 0 as needed)) ہے

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter12: Fluid Dynamics And Its Biological And Medical Applications

Section: Chapter Questions

Problem 11PE: (a) What is the fluid speed in a fire hose with a 9.00-cm diameter carrying 80.0 L of water per...

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Oil having a density of 930 kg/m3 floats on water. A rectangular block of wood 4.00 cm high and with a density of 960 kg/m3 floats partly in the oil and partly in the water. The oil completely covers the block. How far below the interface between the two liquids is the bottom of the block?
Figure 11.35(a) shows the effect of tube radius on the height to which capillary action can raise a fluid. (a) Calculate the height h for water in a glass tube with a radius of 0.900 cm—a rather large tube like the one on the left. (b) What is the radius of the glass tube on the right if it raises water to 4.00 cm?
Calculate the Reynolds numbers for the flow of water through (a) a nozzle with a radius of 0.250 cm and (b) a garden hose with a radius of 0.900 cm, when the nozzle is attached to the hose. The flow rate through hose and nozzle is 0.500 us. Can the flow in either possibly be laminar?
Is there a limit to the height to which an entrainment device can raise a fluid? Explain your answer.
Archimedes' principle can be used to calculate the density of a fluid as well as that of a solid. Suppose a chunk of iron with a mass of 390.0 g in air is found to have an apparent mass of 350.5 g when completely submerged in an unknown liquid. (a) What mass of fluid does the iron displace? (b) What is the volume of iron, using its density as given in Table 11.1 (c) Calculate the fluid's density and identify it.
Gauge pressure in the fluid surrounding an infant's brain may rise as high as 85.0 mm Hg (5 to 12 mm Hg is normal), creating an outward force large enough to make the skull grow abnormally large. (a) Calculate this outward force in newtons on each side of an infant's skull if the effective area of each side is 70.0 cm2. (b) What is the net force acting on the skull?
The hydraulic system of a backhoe is used to lift a load as shown in Figure 11.45. (a) Calculate the force F the slave cylinder must exert to support the 400-kg load and the 150-kg brace and shovel. (b) What is the pressure in the hydraulic fluid if the slave cylinder is 2.50 cm in diameter? (c) What force would you have to exert on a lever with a mechanical advantage of 5.00 acting on a master cylinder 0.800 cm in diameter to create this pressure? Figure 11.45 Hydraulic and mechanical lever systems are used in heavy machinery such as this back hoe.
(a) What is the fluid speed in a fire hose with a 9.00-cm diameter carrying 80.0 L of water per second? (b) What is the flow rate in cubic meters per second? (c) Would your answers be different if salt water replaced the fresh water in the fire hose?
How much pressure is transmitted in the hydraulic system considered in Example 11.6? Express your answer in pascals and in atmospheres.
A certain man has a mass of 80 kg and a density of 955 kg/m3 (excluding the air in his lungs). (a) Calculate his volume. (b) Find the buoyant force air exerts on him. (c) What is the ratio of the buoyant force to his weight?
Suppose water is raised by capillary action to a height of 5.00 cm in a glass tube. (a) To what height will it be raised in a paraffin tube of the same radius? (b) In a silver tube of the same radius?
(a) Verify that a 19.0% decrease in laminar flow through a tube is caused by a 5.00% decrease in radius, assuming that all other factors remain constant, as stated in the text. (b) What increase in flow is obtained from a 5.00% increase in radius, again assuming all other factors remain constant?