Part (c) Calculate the magnitude of the weight of the cube, in newtons Numeric : Anumeric value is expected and not an expression. W = 284.8 Part (d) Enter an expression for the magnitude of the buoyant force acting on the cube, in terms of ow. Qo, L, d, and g. Expression %3D Select from the variables below to write your expression. Note that all variables may not be required. B. Y, Q, ge, Qo, Qw, 0, d, g, h, j, L, m, n, P Part (e) Calculate the magnitude of the buoyant force, in newtons. Numeric : A numeric value is expected and not an expression. FB = Part (f) Enter an expression for the tension in the string, in terms of the defined quantities and g. Expression : T = Select from the variables below to write your expression. Note that all variables may not be required. B. Y. Q, ge, Qo: Qw, 0, d, g, h, j, L, m, n, P Part (g) Calculate the tension in the string, in newtons. Numeric : A numeric value is expected and not an expression. T =

Part (c) Calculate the magnitude of the weight of the cube, in newtons Numeric : Anumeric value is expected and not an expression. W = 284.8 Part (d) Enter an expression for the magnitude of the buoyant force acting on the cube, in terms of ow. Qo, L, d, and g. Expression %3D Select from the variables below to write your expression. Note that all variables may not be required. B. Y, Q, ge, Qo, Qw, 0, d, g, h, j, L, m, n, P Part (e) Calculate the magnitude of the buoyant force, in newtons. Numeric : A numeric value is expected and not an expression. FB = Part (f) Enter an expression for the tension in the string, in terms of the defined quantities and g. Expression : T = Select from the variables below to write your expression. Note that all variables may not be required. B. Y. Q, ge, Qo: Qw, 0, d, g, h, j, L, m, n, P Part (g) Calculate the tension in the string, in newtons. Numeric : A numeric value is expected and not an expression. T =

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter15: Fluid Mechanics

Section: Chapter Questions

Problem 67P: A U-tube open at both ends is partially filled with water (Fig. P15.67a). Oil having a density 750...

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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 immersed in water as shown in Figure P15.24b. The 12.0-cm dimension is vertical, and the top of the block is 5.00 cm below the surface of the water. (a) What are the magnitudes of the forces acting on the top and on the bottom of the block due to the surrounding water? (b) What is the reading of the spring scale? (c) Show that the buoyant force equals the difference between the forces at the top and bottom of the block.
A table-tennis 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?
What fraction of ice is submerged when it floats in freshwater, given the density of water 0°C is very close to 1000 kg/m3?
A U-tube open at both ends is partially filled with water (Fig. P15.67a). Oil having a density 750 kg/m3 is then poured into the right arm and forms a column L = 5.00 cm high (Fig. P15.67b). (a) Determine the difference h in the heights of the two liquid surfaces. (b) The right arm is then shielded from any air motion while air is blown across the top of the left arm until the surfaces of the two liquids are at the same height (Fig. P15.67c). Determine the speed of the air being blown across the left arm. Take the density of air as constant at 1.20 kg/m3.
The gravitational force exerted on a solid object is 5.00 N. When the object is suspended from a spring scale and submerged in water, the scale reads 3.50 N (Fig. P15.24). Find the density of the object. Figure P15.24 Problems 24 and 25.
Bird bones have air pockets to reduce their weight—this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone air and in water and finds its mass is 45.0 g ad its apparent mass when submerged is 3.60 g (assume the bone is watertight.)(a) What mass of is displaced? (b) What is the volume of the bone? (c) What is its average density?
A horizontal pipe 10.0 cm in diameter has a smooth reduction to a pipe 5.00 cm in diameter. If the pressure of the water in the larger pipe is 8.00 104 Pa and the pressure in the smaller pipe is 6.00 104 Pa, at what rate does water flow through the pipes?
In an immersion measurement of a woman's density, she is found to have a mass of 62.0 kg in air an apparent mass of 0.0850 kg completely submerged with lungs empty. (a) What of water does she displace? (b) What is her volume? (c) Calculate her density. (d) If her lung capacity is 1.7S L, is she able to that without treading water with her lungs filled air?
A tank with a flat bottom of area A and vertical sides is filled to a depth h with water. The pressure is P0 at the top surface. (a) What is the absolute pressure at the bottom of the tank? (b) Suppose an object of mass M and density less than the density of water is placed into the tank and floats. No water overflows. What is the resulting increase in pressure at the bottom of the tank?
A wooden block floats in water, and a steel object is attached to the bottom of the block by a string as in Figure OQ15.1. If the block remains floating, which of the following statements are valid? (Choose all correct statements.) (a) The buoyant force on the steel object is equal to its weight. (b) The buoyant force on the block is equal to its weight. (c) The tension in the string is equal to the weight of the steel object. (d) The tension in the string is less than the weight of the steel object. (e) The buoyant force on the block is equal to the volume of water it displaces.
Review. The tank in Figure P15.13 is filled with water of depth d = 2.00 m. At the bottom of one sidewall is a rectangular hatch of height h = 1.00 m and width w = 2.00 m that is hinged at the top of the hatch. (a) Determine the magnitude of the force the water exerts on the hatch. (b) Find the magnitude of the torque exerted by the water about the hinges.
If your body has a density of 995 kg/m3, what fraction of you will be submerged when floating gently in: (a) Freshwater? (b) Salt water, which has a density of 1027 kg/m3?