Explanation Introduction: Density is used to relate the mass and volume of an object. Mathematically, ρ = m V Here, m is the mass of the object and V is the volume of the object, respectively. Buoyant force is a resistive force applied by the fluid when a solid object is immersed in that fluid. The magnitude of buoyant force is same as the weight of the fluid displaced by it as per the static equilibrium of the fluid. F = ρ V g Here F is the buoyancy force, ρ is the density of the fluid, g is the acceleration due to gravity and V is the volume of the fluid displaced, respectively. Explanation: Recall expression for buoyant force, F = ρ V g Here, V is constant because brick is a rigid object with a fixed volume, so it also displaces a fixed volume of fluid (whether in air or water)

2nd Edition

ISBN: 9780134601823

Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan

Publisher: Pearson,

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.

Question

Chapter 13, Problem 36CQ

To determine

The reason due to which a brick completely submerged in water feels lighter compared to the case when it is held in air. Also draw a force diagram for the brick.

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Chapter 13, Problem 35CQ

Chapter 13, Problem 37CQ

Chapter 13 Solutions

College Physics

Ch. 13 - Review Question 13.1 How would you determine the...Ch. 13 - Prob. 2RQ Ch. 13 - Prob. 3RQ Ch. 13 - Prob. 4RQ Ch. 13 - Review Question 13.5 Why does a fluid exert an...Ch. 13 - Review Question 13.6 Two objects have the same...Ch. 13 - Rank in increasing order the pressure that the...Ch. 13 - 2. Choose a device that reduces the pressure...Ch. 13 - Prob. 3MCQ Ch. 13 - Prob. 4MCQ

Ch. 13 - Prob. 5MCQ Ch. 13 - How do we know that a fluid exerts an upward force...Ch. 13 - Prob. 7MCQ Ch. 13 - Prob. 8MCQ Ch. 13 - Prob. 9MCQ Ch. 13 - 10. A wooden cube is floating in a fish tank that...Ch. 13 - 11. Two identical beakers with the same amount of...Ch. 13 - A piece of steel and a bag of feathers are...Ch. 13 - A metal boat floats in a pool. What happens to the...Ch. 13 - When a boat sails from seawater to fresh water,...Ch. 13 - Three blocks are floating in oil as shown in...Ch. 13 - Prob. 16MCQ Ch. 13 - 17. Describe a method to measure the density of a...Ch. 13 - 18. How can you determine the density of air? Ch. 13 - 20. Does air exert a net upward force or a net...Ch. 13 - 21. What causes the pressure that air exerts on a...Ch. 13 - 22. Why. when you fill a teapot with water, is the...Ch. 13 - What experimental evidence supports Pascals first...Ch. 13 - Fill a plastic cup to the very top with water. Put...Ch. 13 - 25. Why does a fluid exert a net upward force on...Ch. 13 - Describe how you could predict whether an object...Ch. 13 - 27. Why can you lift objects while in water that...Ch. 13 - 28. When placed in a lake, a solid object either...Ch. 13 - 30. Ice floats in water in a beaker. Will the...Ch. 13 - Prob. 31CQ Ch. 13 - Why do people sink in fresh water and in most...Ch. 13 - 34. A bucket filled to the top with water has a...Ch. 13 - Marjory thinks that the mass of a fluid above a...Ch. 13 - Prob. 36CQ Ch. 13 - A bucket filled with water has a piece of ice...Ch. 13 - Prob. 39CQ Ch. 13 - Determine the average density of Earth. What data...Ch. 13 - Prob. 2P Ch. 13 - Prob. 3P Ch. 13 - * BIO A diet decreases a persons mass by 5%....Ch. 13 - Prob. 5P Ch. 13 - Prob. 6P Ch. 13 - 7. Imagine that you have gelatin cut into three...Ch. 13 - An object made of material A has a mass of 90 kg...Ch. 13 - You have a steel ball that has a mass of 6.0 kg...Ch. 13 - * A material is made of molecules of mass 2.0 x...Ch. 13 - 11. You compress all the molecules described in...Ch. 13 - Prob. 13P Ch. 13 - * Anita holds her physics textbook and complains...Ch. 13 - Prob. 15P Ch. 13 - Prob. 16P Ch. 13 - Hydraulic car lift You are designing a hydraulic...Ch. 13 - EST Force of air on forehead Estimate the force...Ch. 13 - You have a rubber pad with a handle attached to it...Ch. 13 - * EST Toy bow and arrow A child's toy arrow has a...Ch. 13 - Prob. 22P Ch. 13 - Prob. 23P Ch. 13 - Water reservoir and faucet The pressure at the top...Ch. 13 - Prob. 25P Ch. 13 - 26. BIOEST Blood pressure Estimate the pressure of...Ch. 13 - Prob. 27P Ch. 13 - 28. * Mountain climbing Determine the change in...Ch. 13 - Prob. 29P Ch. 13 - 30. * A truck transporting chemicals has crashed,...Ch. 13 - 31. Drinking through a straw You are drinking...Ch. 13 - * More straw drinking While you are drinking...Ch. 13 - Prob. 33P Ch. 13 - 34. * BIO EST Eardrum Estimate the net force on...Ch. 13 - 35. BIO Eardrum again You now go snorkeling. What...Ch. 13 - 36. Water and oil are poured into opposite sides...Ch. 13 - 37. * Examine the vertical cross section of the...Ch. 13 - 38. * A test tube of length L and cross-sectional...Ch. 13 - 39. Half of a 20-cm-tall beaker is filled with...Ch. 13 - Blaise Pascal found a seemingly paradoxical...Ch. 13 - 41. Four containers are filled with different...Ch. 13 - Prob. 42P Ch. 13 - The reading of a barometer in your room in 780 mm...Ch. 13 - How long would Torricellis barometer have had to...Ch. 13 - Prob. 45P Ch. 13 - Prob. 46P Ch. 13 - Prob. 47P Ch. 13 - Prob. 48P Ch. 13 - Draw a force diagram for an object that is...Ch. 13 - 50. Draw a cubic object that is completely...Ch. 13 - Prob. 51P Ch. 13 - * Four cubes of the same volume are made of...Ch. 13 - 53. * You place four identical cubes made of oak ...Ch. 13 - kg/m3) reaches the 10-cm mark. You place an oak...Ch. 13 - 55. * A 30-g ball with volume is attached to the...Ch. 13 - Prob. 57P Ch. 13 - Prob. 58P Ch. 13 - 59. * You have four objects at rest, each of the...Ch. 13 - Prob. 60P Ch. 13 - Prob. 61P Ch. 13 - 62. * A pin through a hole in the middle supports...Ch. 13 - 63. * A meter stick is supported by a pin through...Ch. 13 - Goose on a lake A 3.6-kg goose floats on a lake...Ch. 13 - 1 floats in seawater of density 2. What fraction...Ch. 13 - 66 * Floating in seawater A person of average...Ch. 13 - kg/m3 when it is fully submerged in water of...Ch. 13 - 68. * Snorkeling A 60-kg snorkeler (including...Ch. 13 - 69. * A helium balloon of volume has a total mass...Ch. 13 - Prob. 70P Ch. 13 - Prob. 71P Ch. 13 - * Crown composition A crown is made of gold and...Ch. 13 - Prob. 73P Ch. 13 - Prob. 74P Ch. 13 - 75. * You hang a steel ball on a string above a...Ch. 13 - * One end of a light spring is attached to a...Ch. 13 - Prob. 77P Ch. 13 - Prob. 78P Ch. 13 - Prob. 79P Ch. 13 - EST Iceberg Icebergs are large pieces of...Ch. 13 - Prob. 81P Ch. 13 - 82 ** To increase the effect of the buoyant force...Ch. 13 - Prob. 83GP Ch. 13 - Prob. 84GP Ch. 13 - Prob. 85GP Ch. 13 - 86. * EST Bursting a wine barrel Pascal placed a...Ch. 13 - Prob. 87GP Ch. 13 - Prob. 88GP Ch. 13 - 90. ** You have an empty water bottle. Predict how...Ch. 13 - ** BIO Flexible bladder helps fish sink or rise A...Ch. 13 - * Plane lands on Nimitz aircraft carrier When a...Ch. 13 - Derive an equation for determining the unknown...Ch. 13 - Prob. 94RPP Ch. 13 - Prob. 95RPP Ch. 13 - 96. As Musimu descends, the buoyant force that the...Ch. 13 - Prob. 97RPP Ch. 13 - Lakes freeze from top down we all know that ice...Ch. 13 - Lakes freeze from top down we all know that ice...Ch. 13 - Lakes freeze from top down we all know that ice...Ch. 13 - Lakes freeze from top down we all know that ice...Ch. 13 - Lakes freeze from top down we all know that ice...

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