COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 9, Problem 51QAP
To determine
The pressure exerted on the sides of the cube.
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Chapter 11, Problem 069
A Venturi meter is a device for measuring the speed of a uid within a pipe. The drawing shows a gas lowing at speed vy through a hortrontal section of pipe whose cross-sectionel arma is A
0.0602 m. The gas has a density of p- 1.30 kg/m. The Venturt meter has a cross-sectional area of A0.0169 m and has been substituted for a section of the larger pipe. The pres
difference between the two sections is P- P-68.7 Pa. Pind (a) the speed vy of the gas in the larger original pipe and (b) the volume flow rate Q of the ges.
Vesturi mete
(a) Number
Units
(b) Number
Units
Click if you would like to Show Work for this question: Qpen Show Work
Chapter 9 Solutions
COLLEGE PHYSICS
Ch. 9 - Prob. 1QAPCh. 9 - Prob. 2QAPCh. 9 - Prob. 3QAPCh. 9 - Prob. 4QAPCh. 9 - Prob. 5QAPCh. 9 - Prob. 6QAPCh. 9 - Prob. 7QAPCh. 9 - Prob. 8QAPCh. 9 - Prob. 9QAPCh. 9 - Prob. 10QAP
Ch. 9 - Prob. 11QAPCh. 9 - Prob. 12QAPCh. 9 - Prob. 13QAPCh. 9 - Prob. 14QAPCh. 9 - Prob. 15QAPCh. 9 - Prob. 16QAPCh. 9 - Prob. 17QAPCh. 9 - Prob. 18QAPCh. 9 - Prob. 19QAPCh. 9 - Prob. 20QAPCh. 9 - Prob. 21QAPCh. 9 - Prob. 22QAPCh. 9 - Prob. 23QAPCh. 9 - Prob. 24QAPCh. 9 - Prob. 25QAPCh. 9 - Prob. 26QAPCh. 9 - Prob. 27QAPCh. 9 - Prob. 28QAPCh. 9 - Prob. 29QAPCh. 9 - Prob. 30QAPCh. 9 - Prob. 31QAPCh. 9 - Prob. 32QAPCh. 9 - Prob. 33QAPCh. 9 - Prob. 34QAPCh. 9 - Prob. 35QAPCh. 9 - Prob. 36QAPCh. 9 - Prob. 37QAPCh. 9 - Prob. 38QAPCh. 9 - Prob. 39QAPCh. 9 - Prob. 40QAPCh. 9 - Prob. 41QAPCh. 9 - Prob. 42QAPCh. 9 - Prob. 43QAPCh. 9 - Prob. 44QAPCh. 9 - Prob. 45QAPCh. 9 - Prob. 46QAPCh. 9 - Prob. 47QAPCh. 9 - Prob. 48QAPCh. 9 - Prob. 49QAPCh. 9 - Prob. 50QAPCh. 9 - Prob. 51QAPCh. 9 - Prob. 52QAPCh. 9 - Prob. 53QAPCh. 9 - Prob. 54QAPCh. 9 - Prob. 55QAPCh. 9 - Prob. 56QAPCh. 9 - Prob. 57QAPCh. 9 - Prob. 58QAPCh. 9 - Prob. 59QAPCh. 9 - Prob. 60QAPCh. 9 - Prob. 61QAPCh. 9 - Prob. 62QAPCh. 9 - Prob. 63QAPCh. 9 - Prob. 64QAPCh. 9 - Prob. 65QAPCh. 9 - Prob. 66QAPCh. 9 - Prob. 67QAPCh. 9 - Prob. 68QAPCh. 9 - Prob. 69QAPCh. 9 - Prob. 70QAPCh. 9 - Prob. 71QAPCh. 9 - Prob. 72QAPCh. 9 - Prob. 73QAPCh. 9 - Prob. 74QAPCh. 9 - Prob. 75QAPCh. 9 - Prob. 76QAPCh. 9 - Prob. 77QAPCh. 9 - Prob. 78QAPCh. 9 - Prob. 79QAPCh. 9 - Prob. 80QAPCh. 9 - Prob. 81QAP
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- (a) How high will water rise in a glass capillary tube with a 0.500-mm radius? (b) How much gravitational potential energy does the water gain? (c) Discuss possible sources of this energy.arrow_forwardThe hull of an experimental boat is to be lifted above the water by a hydrofoil mounted below its keel as shown in Figure P14.48. The hydrofoil has a shape like that of an airplane wing. Its area projected onto a horizontal surface is A. When the boat is towed at sufficiently high speed, water of density moves in streamline flow so that its average speed at the top of the hydrofoil is n times larger than its speed vb below the hydrofoil. (a) Ignoring the buoyant force, show that the upward lift force exerted by the water on the hydrofoil has a magnitude F=12(n21)vb2A (b) The boat has mass M. Show that the liftoff speed is given by v=2Mg(n21)A Figure P14.4 8arrow_forwardThe human brain and spinal cord are immersed in the cerebrospinal fluid. The fluid is normally continuous between the cranial and spinal cavities and exerts a pressure of 100 to 200 mm of H2O above the prevailing atmospheric pressure. In medical work, pressures are often measured in units of mm of H2O because body fluids, including the cerebrospinal fluid, typically have nearly the same density as water. The pressure of the cerebrospinal fluid can be measured by means of a spinal tap. A hollow tube is inserted into the spinal column, and the height lo which the fluid rises is observed, as shown in Figure P9.83. If the fluid ruses to a height of 160. mm, we write its gauge pressure as 160. mm H2O. (a) Express this pressure in pascals, in atmospheres, and in millimeters of mercury. (b) Sometimes it is necessary to determine whether an accident victim has suffered a crushed vertebra that is blocking the flow of cerebrospinal fluid in the spinal column. In other cases, a physician may suspect that a tumor or other growth is blocking the spinal column and inhibiting the flow of cerebrospinal fluid. Such conditions ran be investigated by means of the Queckensted test. In this procedure, the veins in the patients neck are compressed lo make the blood pressure rise in the brain. The increase in pressure in the blood vessels is transmitted to the cerebrospinal fluid. What should be the normal effect on the height of the fluid in the spinal tap? (c) Suppose compressing the veins had no effect on the level of the fluid. What might account for this phenomenon?arrow_forward
- Example 12.8 dealt with the flow of saline solution in an IV system. (a) Verify that a pressure of 1.62104 N/m2 is created at a depth of 1.61 m in a saline solution, assuming its density to be that of sea water. (b) Calculate the new flow rate if the height of the saline solution is decreased to 1.50 m. (c) At what height would the direction of flow be reversed? (This reversal can be a problem when patients stand up.)arrow_forwardA uniform wooden board of length L and mass M is hinged at the top of a vertical wall of a container partially filled with a certain liquid (Fig. P15.81). (If there were no liquid in the container, the board would hang straight down.) Three-fifths of the length of the board is submerged in the liquid when the board is in equilibrium. Find the ratio of the densities of the liquid and the board.arrow_forwardArtificial diamonds can be made using high-pressure, high-temperature presses. Suppose an artificial diamond of volume 1.00 106 m3 is formed under a pressure of 5.00 GPa. Find the change in its volume when it is released from the press and brought to atmospheric pressure. Take the diamonds bulk modulus to be B = 194 GPa.arrow_forward
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