Problem 14.1QQ: Suppose you are standing directly behind someone who steps back and accidentally stomps on your foot... Problem 14.2QQ: The pressure at the bottom of a filled glass of water ( = 1 000 kg/m3) is P. The water is poured... Problem 14.3QQ: Several common barometers are built, with a variety of fluids. For which of the following fluids... Problem 14.4QQ: You are shipwrecked and floating in the middle of the ocean on a raft. Your cargo on the raft... Problem 14.5QQ: You observe two helium balloons floating next to each other at the ends of strings secured to a... Problem 14.1OQ: Figure OQ14.1 shows aerial views from directly above two dams. Both dams are equally wide (the... Problem 14.2OQ Problem 14.3OQ: A wooden block floats in water, and a steel object is attached to the bottom of the block by a... Problem 14.4OQ: An apple is held completely submerged just below the surface of water in a container. The apple is... Problem 14.5OQ: A beach ball is made of thin plastic. It has been inflated with air, but the plastic is not... Problem 14.6OQ: A solid iron sphere and a solid lead sphere of the same size are each suspended by strings and are... Problem 14.7OQ Problem 14.8OQ: One of the predicted problems due to global warming is dial ice in the polar ice caps will melt and... Problem 14.9OQ: A boat develops a leak and, after its passengers are rescued, eventually sinks to the bottom of a... Problem 14.10OQ: A small piece of steel is tied to a block of wood. When the wood is placed in a tub of water with... Problem 14.11OQ: A piece of unpainted porous wood barely floats in an open container partly filled with water. The... Problem 14.12OQ: A person in a boat floating in a small pond throws an anchor overboard. What happens to the level of... Problem 14.13OQ: Rank the buoyant forces exerted on the following five objects of equal volume from the largest to... Problem 14.14OQ: A water supply maintains a constant rate of flow for water in a hose. You want to change the opening... Problem 14.15OQ: A glass of water contains floating ice cubes. When the ice melts, does the water level in the glass... Problem 14.16OQ: An ideal fluid flows through a horizontal pipe whose diameter varies along its length. Measurements... Problem 14.1CQ: When an object is immersed in a liquid at rest, why is the net force on the object in the horizontal... Problem 14.2CQ: Two thin-walled drinking glasses having equal base areas bin different shapes, with very different... Problem 14.3CQ: Because atmospheric pressure is about 105 N/m2 and the area of a persons chest is about 0.13 m2, the... Problem 14.4CQ: A fish rests on the bottom of a bucket of water while the bucket is being weighed on a scale. When... Problem 14.5CQ: You are a passenger on a spacecraft. For your survival and comfort, the interior contains air just... Problem 14.6CQ Problem 14.7CQ Problem 14.8CQ: If you release a ball while inside a freely falling elevator, the ball remains in front of you... Problem 14.9CQ: (a) Is the buoyant force a conservative force? (b) Is a potential energy associated with the buoyant... Problem 14.10CQ: All empty metal soap dish barely floats in water. A bar of Ivory soap floats in water. When the soap... Problem 14.11CQ Problem 14.12CQ Problem 14.13CQ Problem 14.14CQ: Does a ship float higher in the water of an inland lake or in the ocean? Why? Problem 14.15CQ Problem 14.16CQ Problem 14.17CQ: Prairie dogs ventilate their burrows by building a mound around one entrance, which is open to a... Problem 14.18CQ Problem 14.19CQ Problem 14.1P: A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man... Problem 14.2P Problem 14.3P: A 50.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl... Problem 14.4P: Estimate the total mass of the Earths atmosphere. (The radius of the Earth is 6.37 106 m, and... Problem 14.5P: Calculate the mass of a solid gold rectangular bar that has dimensions of 4.50 cm 11.0 cm 26.0 cm. Problem 14.6P: (a) A wry powerful vacuum cleaner has a hose 2.86 cm in diameter. With the end of the hose placed... Problem 14.7P: The spring of the pressure gauge shown in Figure 14.7 has a farce constant of 1 250 N/m, and the... Problem 14.8P: The small piston of a hydraulic lift (Fig. P14.8) has a cross-sectional area of 3.00 cm2, and its... Problem 14.9P: What must be the contact area between a suction cup (completely evacuated) and a ceiling if the cup... Problem 14.10P: A swimming pool has dimensions 30.0 m 10.0 m and a flat bottom. When the pool is filled to a depth... Problem 14.11P: (a) Calculate the absolute pressure at the bottom of a fresh water lake at a point whose depth is... Problem 14.12P Problem 14.13P Problem 14.14P: A container is filled to a depth of 20.0 cm with water. On top of the water floats a 30.0-cm-thick... Problem 14.15P: Review. The lank in Figure P14.15 is filled with water of depth d = 2.00 m. At the bottom of one... Problem 14.16P Problem 14.17P Problem 14.18P: Review. A solid sphere of brass (bulk modulus of 14.0 1010 N/m2) with a diameter of 3.00 m is... Problem 14.19P: Normal atmospheric pressure is 1.013 103 Pa. The approach of a storm causes the height of a mercury... Problem 14.20P: The human brain and spinal cord are immersed in the cerebrospinal fluid. The fluid is normally... Problem 14.21P: Blaise Pascal duplicated Torricellis barometer using a red Bordeaux wine, of density 984 kg/m3, as... Problem 14.22P Problem 14.23P: A backyard swimming pool with a circular base of diameter 6.00 m is filled to depth 1.50 m. (a) Find... Problem 14.24P: A tank with a flat bottom of area A and vertical sides is filled to a depth h with water. The... Problem 14.25P: A table-tennis ball has a diameter of 3.80 cm and average density of 3.80 cm and over-age density of... Problem 14.26P Problem 14.27P: A 10.0-kg block of metal measuring 12.0 cm by 10.0 cm by 10.0 cm is suspended from a scale and... Problem 14.28P: A light balloon is filled with 400 m3 of helium at atmospheric pressure. (a) At 0C, the balloon can... Problem 14.29P: A cube of wood having an edge dimension of 20.0 cm and a density of 650 kg/m3 floats on water. (a)... Problem 14.30P: The United States possesses the ten largest warships in the world, aircraft carriers of the Nimitz... Problem 14.31P: A plastic sphere floats in water with 50.0% of its volume submerged. This same sphere floats in... Problem 14.32P: A spherical vessel used for deep-sea exploration has a radius of 1.50 m and a mass of 1.20 104 kg.... Problem 14.33P: A wooden block of volume 5.24 104 m3 floats in water, and a small steel object of mass m is placed... Problem 14.34P: The weight of a rectangular block of low-density material is 15.0 N. With a thin string, the center... Problem 14.35P: A large weather balloon whose mass is 226 kg is filled with helium gas until its volume is 325 m3.... Problem 14.36P: A hydrometer is an instrument used to determine liquid density. A simple one is sketched in Figure... Problem 14.37P: Refer to Problem 16 and Figure P14.16. A hydrometer is to be constructed with a cylindrical floating... Problem 14.38P: On October 21, 2001, Ian Ashpole of the United Kingdom achieved a record altitude of 3.35 km (11 000... Problem 14.39P: How many cubic meters of helium are required to lift a light balloon with a 400-kg payload to a... Problem 14.40P: Water flowing through a garden hose of diameter 2.74 cm fills a 25-L bucket in 1.50 min. (a) What is... Problem 14.41P: A large storage tank, open at the top and filled with water, develops a small hole in its side at a... Problem 14.42P Problem 14.43P Problem 14.44P: A village maintains a large tank with ail open top, containing water for emergencies. The water can... Problem 14.45P: A legendary Dutch boy saved Holland by plugging a hole of diameter 1.20 cm in a dike with his... Problem 14.46P: Water falls over a dam of height h with a mass flow rate of R, in units of kilograms per second. (a)... Problem 14.47P: Water is pumped up from the Colorado River to supply Grand Canyon Village, located on the rim of the... Problem 14.48P: In ideal flow, a liquid of density 850 kg/m3 moves from a horizontal tube of radius 1.00 cm into a... Problem 14.49P: The Venturi tube discussed in Example 14.8 and shown in Figure P14.49 may be used as a fluid... Problem 14.50P: Review. Old Faithful Geyser in Yellowstone National Park erupts at approximately one-hour intervals,... Problem 14.51P: An airplane is cruising al altitude 10 km. The pressure outside the craft is 0.287 atm; within the... Problem 14.52P: An airplane has a mass of 1.60 104 kg, and each wing has an area of 40.0 m2. During level flight,... Problem 14.53P Problem 14.54P: The Bernoulli effect can have important consequences for the design of buildings. For example, wind... Problem 14.55P Problem 14.56AP: Decades ago, it was thought that huge herbivorous dinosaurs such as Apatosaurus and Brachiosaurus... Problem 14.57AP: (a) Calculate the absolute pressure at an ocean depth of 1 000 m. Assume the density of seawater is... Problem 14.58AP Problem 14.59AP: A spherical aluminum ball of mass 1.26 kg contains an empty spherical cavity that is concentric with... Problem 14.60AP Problem 14.61AP: Review. Figure P14.61 shows a valve separating a reservoir from a water tank. If this valve is... Problem 14.62AP: The true weight of an object can be measured in a vacuum, where buoyant forces are absent. A... Problem 14.63AP: Water is forced out of a fire extinguisher by air pressure as shown in Figure P14.63. How much gauge... Problem 14.64AP: Review. Assume a certain liquid, with density 1 230 kg/m3, exerts no friction force on spherical... Problem 14.65AP Problem 14.66AP Problem 14.67AP Problem 14.68AP: A common parameter that can be used to predict turbulence in fluid flow is called the Reynolds... Problem 14.69AP: Evangelista Torricelli was the first person to realize that we live at the bottom of an ocean of... Problem 14.70AP: Review. With reference to the dam studied in Example 14.4 and shown in Figure 14.5, (a) show that... Problem 14.71AP: A 1.00-kg beaker containing 2.00 kg of oil (density = 91(5.0 kg/m3) rests on a scale. A 2.00-kg... Problem 14.72AP: A beaker of mass mb containing oil of mass mu and density pa rests on a scale. A block of iron of... Problem 14.73AP: In 1983, the United States began coining the one-cent piece out of copper-clad zinc rather than pure... Problem 14.74AP: Review. A long, cylindrical rod of radius r is weighted on one end so that it floats upright in a... Problem 14.75AP Problem 14.76AP: The spirit-in-glass thermometer, invented in Florence, Italy, around 1654, consists of a tube of... Problem 14.77AP Problem 14.78AP: Review. In a water pistol, a piston drives water through a large tube of area A1 into a smaller tube... Problem 14.79AP Problem 14.80AP: The water supply of a building is fed through a main pipe 6.00 cm in diameter. A 2.00-cm-diameter... Problem 14.81AP: A U-tube open at both ends is partially filled with water (Fig. P14.81a). Oil having a density 750... Problem 14.82AP: A woman is draining her fish tank by siphoning the water into an outdoor drain as shown in Figure... Problem 14.83AP: The hull of an experimental boat is to be lifted above the water by a hydrofoil mounted below its... Problem 14.84AP Problem 14.85CP: An ice cube whose edges measure 20.0 mm is floating in a glass of ice-cold water, and one of the ice... Problem 14.86CP: Why is the following situation impossible? A barge is carrying a load of small pieces of iron along... Problem 14.87CP: Show that the variation of atmospheric pressure with altitude is given by P = P0ey where = 0g/P0,... format_list_bulleted
