Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Question
Chapter 8, Problem 7TE
To determine
The reason to get less hurt by stone on beach in the deep water.
Expert Solution & Answer
Answer to Problem 7TE
The feet feel less hurt in deep water due to the buoyancy of water on the human body.
Explanation of Solution
The buoyant force acts on the submerged body when the body is in the water and it is equal to the weight of the object. The buoyant force is responsible for the floating of an object.
The pressure exerted by the feet on the stones reduces due to the buoyant force of the water. The buoyant force becomes more in the deep water and it prevents the feet to hit hard on the stones in the water. In deep water, the weight of the body seems less than actual because of buoyant force.
Conclusion:
Therefore, the feet feel less hurt in bathing on a stony beach due to the buoyancy of water on the human body.
Chapter 8 Solutions
Conceptual Physical Science Explorations
Ch. 8 - Distinguish between mass density and weight...Ch. 8 - How does the pressure exerted by a liquid change...Ch. 8 - How does water pressure 1meter below the surface...Ch. 8 - If you punch a hole in the side of container...Ch. 8 - Why does buoyant force act upward on an object...Ch. 8 - How does the volume of a fully submerged object...Ch. 8 - How does the buoyant force on a fully submerged...Ch. 8 - What is the mass in kilograms of 1L of water? What...Ch. 8 - If a 1-L container is immersed halfway in water,...Ch. 8 - Does the buoyant force on a floating object depend...
Ch. 8 - What weight of water is displaced by a 100-ton...Ch. 8 - By how much does the density of air increase when...Ch. 8 - How does the downward pressure of the 76-cm column...Ch. 8 - How does the weight of mercury in a barometer tube...Ch. 8 - Consider two tubes of equal cross-sectional area....Ch. 8 - What happens to the pressure in all parts of a...Ch. 8 - Does Pascal's principle provide a way to get more...Ch. 8 - A balloon that weighs 1N is suspended in the air,...Ch. 8 - Prob. 19RQCh. 8 - What do peaked roofs, convertible tops, and...Ch. 8 - Calculate the density of a block of mass 22kg that...Ch. 8 - Calculate the density of 3L of a liquid that has a...Ch. 8 - Calculate the density of a gas with a mass of...Ch. 8 - Calculate the pressure in N/m2 at the bottom of...Ch. 8 - Calculate the water pressure at the base of a...Ch. 8 - The three metal balls are held suspended and...Ch. 8 - A buoyant force acts on each of the three...Ch. 8 - Rank the amount of force the right-hand piston can...Ch. 8 - Stand on a bathroom scale and read your weight....Ch. 8 - In a deep dive, a whale is appreciably compressed...Ch. 8 - A balloon is weighted so that it is barely able to...Ch. 8 - The density of the rock doesnt change when it is...Ch. 8 - Prob. 5TECh. 8 - Suppose you wish to lay a level foundation for a...Ch. 8 - Prob. 7TECh. 8 - If the liquid pressure were the same at all...Ch. 8 - Why is it inaccurate to say that heavy objects...Ch. 8 - Compared to an empty ship, would a ship loaded...Ch. 8 - A barrage filled with scrap iron is in a canal...Ch. 8 - A ship sailing from the ocean into freshwater...Ch. 8 - Suppose you are given the choice between two life...Ch. 8 - A half-filled bucket of water is on a spring...Ch. 8 - There is much concern about rising sea level due...Ch. 8 - Your friend says that the buoyant force of the...Ch. 8 - When you replace helium in a balloon with...Ch. 8 - Prob. 18TECh. 8 - Prob. 19TECh. 8 - What physics principle underlies the following...Ch. 8 - Suppose that you balance a 5-kg ball on the tip of...Ch. 8 - A 6-kg piece of metal displaces 1L of water when...Ch. 8 - A 1-kg rock suspended above water weighs 10 N....Ch. 8 - A merchant in Katmandu sells you a solid-gold 1-kg...Ch. 8 - In the hydraulic pistons shown in the sketch, the...Ch. 8 - The wings of a certain airplane have a total...Ch. 8 - Pumice is a volcanic rock that floats in water....Ch. 8 - The pressure at the bottom of a pond does NOT...Ch. 8 - A completely submerged object always displaces its...Ch. 8 - A rock suspended by a weighing scale weighs 5N out...Ch. 8 - A block of wood with a flat rock tied to its top...Ch. 8 - In a vacuum, an object has no (a) buoyant force....Ch. 8 - Consider two mercury barometer, one having a...Ch. 8 - In a hydraulic press operation, it is impossible...Ch. 8 - The flight of a blimp best illustrates (a)...Ch. 8 - Wind speeding up as it blows over the top of a...
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