Explanation Introduction: Density is defined as mass per unit volume, which is mathematically expressed as: ρ = m V Here, m is the mass of the object and V is the volume of the object. Explanation: Assume the mass of glass to be 0.1 kg , the volume of the glass to be 0.00025 m 3 and the thickness of the glass to be negligible. Also, consider the densities of air and water as 1.225 kg/m 3 and 1000 kg/m 3 , respectively. Consider the situation in which the glass is filled with water. Recall the expression for the density of water. ρ water = m water V water Rearrange the above expression for m water . m water = ρ water V water Substitute 1000 kg/m 3 for ρ water and 0.00025 m 3 for V water in the above expression. m water = ( 1000 kg/m 3 ) ( 0.00025 m 3 ) = 0.25 kg Calculate the total mass of the glass, including the water in it. m Total = m water + m glass Substitute 0.25 kg for m water and m glass as 0.1 kg . m Total = ( 0.25 kg ) + ( 0.1 kg ) = 0.35 kg Understand that the total mass of the glass (including the water) is 0.35 kg and the volume of water in the glass is 0.00025 m 3 . So, recall the expression for the effective density of the total mass of the glass, including water. ρ Total = m Total V Total Substitute 0.35 kg for m Total and 0.00025 m 3 for V Total . ρ Total = ( 0.35 kg ) ( 0

2nd Edition

ISBN: 9780134605500

Author: ETKINA

Publisher: PEARSON CO

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Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.

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Chapter 13, Problem 13P

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The average density of a glass full of water and that of the glass when the water is poured out.

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Chapter 13, Problem 11P

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Chapter 13 Solutions

EBK 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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