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A small wooden boat floats in a swimming pool, and the level of the water at the edge of the pool is marked.
A single ice cube with mass 9.70 g floats in a glass completely full of 420 cm3 of water. You can ignore the water's surface tension
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
A large tank of water is tapped a distance h below the water surface by a small pipe as in Figure. Find the distance x reached by the water flowing out the pipe
A large piece of cork weighs 0.285 N in air. When held submerged underwater by a spring scale as shown in Figure, the spring scale reads 0.855 N
A large aquarium of height 5.00 m is filled with fresh water to a depth of 2.00 m. One wall of the aquarium consists of thick plastic 8.00 m wide.
A lake in the far north of the Yukon is covered with a 1.75-m-thick layer of ice. Find the absolute pressure and the gauge pressure at a depth of 2.50 m
A liquid flowing from a vertical pipe has a definite shape as it flows from the pipe. To get the equation for this shape, assume that the liquid is in free fall
A large tank with diameter D, open to the air contains water to a height H. A small hole with diameter d (d« D) is made at the base of the tank.
A Ping-Pong ball has a diameter of 3.80 cm and average density of 0.084 0 g/cm3. What force is required to hold it completely submerged under water?
A piece of unpainted porous wood barely floats in a container partly filled with water. If the container is sealed and pressurized above atmospheric pressure
A partially evacuated airtight container has a tight fitting lid of surface area 77 m2 and negligible mass. If the force required to remove the lid is 480 N
A liquid of density 900 kg/m3 flows through a horizontal pipe that has a cross-sectional area of 1.90 x 10-2 m2 in region A and a cross-sectional area
A plastic sphere floats in water with 50.0 percent of its volume submerged. This same sphere floats in glycerin with 40.0 percent of its volume submerged.
A plastic ball has radius 12.0 cm and floats in water with 16.0% of its volume submerged.
A Pitot tube can be used to determine the velocity of air flow by measuring the difference between the total pressure and the static pressure
A Pitot tube on a high-altitude aircraft measures a differential pressure of 180 Pa. What is the aircraft's airspeed if the density of the air is 0.031kg/m3?
A Pitot tube (Figure) is used to determine the airspeed of an airplane. It consists of an outer tube with a number of small holes B (four are shown)
Three forces are applied to a bracket. The directions of the two 30-lb forces can vary, but the angle between these forces is always 50°.
Three forces and a couple act on crank ABC. For P = 25 N and a = 40°
Three hikers are shown crossing a footbridge. Knowing that the weights of the hikers at points C, D, and E are 200 lb, 175 lb, and 135 lb, respectively
Three gears A, B, and C are pinned at their centers to rod ABC. Knowing that end A of rod ABC is fixed and that gear A does not rotate
Three rods of lengths a = 240 mm, 200mm b = 200mm, and c = 180 mm are welded together to form the component shown
Three loads are applied as shown to a light beam supported by cables attached at B and D. Knowing that the maximum allowable tension in each cable
Three loads are suspended as shown from cable ABCDE. Knowing that 12 dC = ft, determine