College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 13, Problem 33P
A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 45.0 kg woman to be able to stand on it without getting her feet wet?
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Chapter 13 Solutions
College Physics (10th Edition)
Ch. 13 - A clear plastic hose is attached to the narrow end...Ch. 13 - Equation 13.5 shows that an area ratio of 100 to 1...Ch. 13 - Suppose the door of a room makes an airtight, but...Ch. 13 - When a smooth-flowing stream of water comes out of...Ch. 13 - You push an empty glass jar into a tank of water...Ch. 13 - A very smooth wooden block is pressed against the...Ch. 13 - A marble is in a little box that is floating in a...Ch. 13 - If a rocketship traveling through the vacuum of...Ch. 13 - There is a great deal of ice floating on the...Ch. 13 - Submarines can remain at equilibrium at various...
Ch. 13 - You are told, Bernoullis equation tells us that...Ch. 13 - A helium-filled balloon is tied to a light string...Ch. 13 - Which has a greater buoyant force on it, a 25 cm3...Ch. 13 - A mass of sunken lead is resting against the...Ch. 13 - Two equal-mass pieces of metal are sitting side by...Ch. 13 - Prob. 4MCPCh. 13 - A horizontal cylindrical pipe has a part with a...Ch. 13 - If the absolute pressure at a depth d in a lake is...Ch. 13 - Prob. 7MCPCh. 13 - A rigid metal object is dropped into a lake and...Ch. 13 - Prob. 9MCPCh. 13 - Identical-size cubes of lead and aluminum are...Ch. 13 - Two small holes are drilled in the side of a...Ch. 13 - Prob. 12MCPCh. 13 - You purchase a rectangular piece of metal that has...Ch. 13 - A kidnapper demands a 40.0 kg cube of platinum as...Ch. 13 - Calculate the weight of air at 20C in a room that...Ch. 13 - By how many newtons do you increase the weight of...Ch. 13 - How big is a million dollars? At the time this...Ch. 13 - A cube 5.0 cm on each side is made of a metal...Ch. 13 - A cube of compressible material (such as Styrofoam...Ch. 13 - A hollow cylindrical copper pipe is 1.50 m long...Ch. 13 - A uniform lead sphere and a uniform aluminum...Ch. 13 - Prob. 10PCh. 13 - Blood, (a) Mass of blood. The human body typically...Ch. 13 - Landing on Venus. One of the great difficulties in...Ch. 13 - You are designing a manned submersible to...Ch. 13 - Glaucoma. Under normal circumstances, the vitreous...Ch. 13 - A 1-m-tall glass tube is placed on the moon and...Ch. 13 - What gauge pressure must a pump produce to pump...Ch. 13 - Intravenous feeding. A hospital patient is being...Ch. 13 - A 975-kg car has its tires each inflated to 32.0...Ch. 13 - An electrical short cuts off all power to a...Ch. 13 - Standing on your head. (a) When you stand on your...Ch. 13 - You are designing a machine for a space...Ch. 13 - Ear damage from diving. If the force on the...Ch. 13 - A barrel contains a 0.120 m layer of oil of...Ch. 13 - Blood pressure. Systemic blood pressure is...Ch. 13 - The piston of a hydraulic automobile lift is 0.30...Ch. 13 - Prob. 27PCh. 13 - There is a maximum depth at which a diver can...Ch. 13 - A solid aluminum ingot weighs 89 N in air. (a)...Ch. 13 - A block of wood has a density of 700 kg/m3. It is...Ch. 13 - When an open-faced boat has a mass of 5750 kg,...Ch. 13 - An ore sample weighs 17.50 N in air. When the...Ch. 13 - A slab of ice floats on a freshwater lake. What...Ch. 13 - Using data from Appendix E, calculate the average...Ch. 13 - A hollow plastic sphere is held below the surface...Ch. 13 - (a) Calculate the buoyant force of air (density...Ch. 13 - The tip of the iceberg. Icebergs consist of...Ch. 13 - At 20C, the surface tension of water is 0.073 N/m....Ch. 13 - Find the gauge pressure in pascals inside a soap...Ch. 13 - What radius must a water drop have for the...Ch. 13 - At 20C, the surface tension of water is 0.0728 N/m...Ch. 13 - An irrigation canal has a rectangular cross...Ch. 13 - Water is flowing in a pipe with a varying...Ch. 13 - Water is flowing in a cylindrical pipe of varying...Ch. 13 - A shower head has 20 circular openings, each with...Ch. 13 - Prob. 46PCh. 13 - Prob. 47PCh. 13 - A sealed tank containing seawater to a height of...Ch. 13 - What gauge pressure is required in the city water...Ch. 13 - At one point in a pipeline, the waters speed is...Ch. 13 - Lift on an airplane. Air streams horizontally past...Ch. 13 - A golf course sprinkler system discharges water...Ch. 13 - Water discharges from a horizontal cylindrical...Ch. 13 - Prob. 54PCh. 13 - At a certain point in a horizontal pipeline, the...Ch. 13 - Advertisements for a certain small car claim that...Ch. 13 - A U-shaped tube open to the air at both ends...Ch. 13 - A swimming pool is 3 m wide and 6 m long. The...Ch. 13 - A piece of wood is 0.600 m long. 0.250 m wide, and...Ch. 13 - A hot-air balloon has a volume of 2200 m3. The...Ch. 13 - In seawater, a life preserver with a volume of...Ch. 13 - Block A in Figure 13.43 hangs by a cord from...Ch. 13 - A hunk of aluminum is completely covered with a...Ch. 13 - An industrial waste tank contains a layer of...Ch. 13 - An open cylindrical tank of acid rests at the edge...Ch. 13 - Water stands at a depth H in a large, open tank...Ch. 13 - Prob. 67GPCh. 13 - The horizontal pipe shown in Figure 13.45 has a...Ch. 13 - Venturi meter. The Venturi meter is a device used...Ch. 13 - Elephants under pressure. An elephant can swim or...Ch. 13 - Prob. 71PPCh. 13 - Elephants under pressure. An elephant can swim or...Ch. 13 - Prob. 73PP
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- 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.arrow_forward(a) What is the density of a woman who floats in freshwater with 4.00% of her volume above the surface? This could be measured by placing her in a tank with marks on the side to measure how much water she displaces when floating and when held under water (briefly). (b) What percent of her volume is above the surface when she floats in seawater?arrow_forwardLogs sometimes float vertically in a lake because one end has become water-logged and denser than the other. What is the average density of a uniform-diameter log that floats with 20.0% of its length above water?arrow_forward
- 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.arrow_forwardReview. 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.arrow_forwardA large storage tank with an open top is filled to a height h0. The tank is punctured at a height h above the bottom of the tank (Fig. P15.39). Find an expression for how far from the tank the exiting stream lands. Figure P15.39arrow_forward
- A 1.00-kg beaker containing 2.00 kg of oil (density = 916.0 kg/m3) rests on a scale. A 2.00-kg block of iron suspended from a spring scale is completely submerged in the oil as shown in Figure P15.63. Determine the equilibrium readings of both scales. Figure P15.63 Problems 63 and 64.arrow_forwardA host pours the remnants of several of wine into a jug a party. The host then inserts a cork with a 2.00-cm diameter into the bottle, placing it in direct contact with the wine. The host is amazed when the host pounds the cork into place and the bottom of the jug (with a 14.0-cm diameter) breaks away. Calculate the extra force exerted against the bottom if he pounded the cork with a 120-N force.arrow_forwardA 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.arrow_forward
- A beaker of mass mb containing oil of mass mo and density o rests on a scale. A block of iron of mass mFe suspended from a spring scale is completely submerged in the oil as shown in Figure P15.63. Determine the equilibrium readings of both scales. Figure P15.63 Problems 63 and 64.arrow_forwardA fluid flows through a horizontal pipe that widens, making a 45 angle with the y axis (Fig. P15.48). The thin part of the pipe has radius R, and the fluids speed in the thin part of the pipe is v0. The origin of the coordinate system is at the point where the pipe begins to widen. The pipes cross section is circular. a. Find an expression for the speed v(x) of the fluid as a function of position for x 0 b. Plot your result: v(x) versus x. FIGURE P15.48 (a) The continuity equation (Eq. 15.21) relates the cross-sectional area to the speed of the fluid traveling through the pipe. A0v0 = A(x)v(x) v(x)=A0v0A(x) The cross sectional area is the area of a circle whose radius is y(x). The widening pan of the pipe is a straight line with slope of 1 and intercept y(0) = R. y(x) = mx + b = x + R A(x) = [y(x)]2 = (x + R)2 Plug this into the formula for the velocity. Plug this into the formula for the velocity. v(x)=A0v0(x+R)2arrow_forwardAn incompressible, nonviscous fluid is initially at rest in the vertical portion of the pipe shown in Figure P15.61a, where L = 2.00 m. When the valve is opened, the fluid flows into the horizontal section of the pipe. What is the fluids speed when all the fluid is in the horizontal section as shown in Figure P15.61b? Assume the cross-sectional area of the entire pipe is constant. Figure P15.61arrow_forward
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