College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 22CQ
Fish can adjust their buoyancy with an organ called the swim bladder. The swim bladder is a flexible gas-filled sac; the fish can increase or decrease the amount of gas in the swim bladder so that it stays neutrally buoyant—neither sinking nor floating. Suppose the fish is neutrally buoyant at some depth and then goes deeper. What needs to happen to the volume of air in the swim bladder? Will the fish need to add or remove gas from the swim bladder to maintain its neutral buoyancy?
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Fish can adjust their buoyancy with an organ called the swim bladder. The swim bladder is a flexible gas-filled sac; the fish can increase or decrease the amount of gas in the swim bladder so that it stays neutrally buoyant—neither sinking nor floating. Suppose the fish is neutrally buoyant at some depth and then goes deeper. What needs to happen to the volume of air in the swim bladder? Will the fish need to add or remove gas from the swim bladder to maintain its neutral buoyancy?
We’ve seen that fish can control their buoyancy through the use of a swim bladder, a gas-filled organ inside the body. You can assume that the gas pressure inside the swim bladder is roughly equal to the external water pressure. A fish swimming at a particular depth adjusts the volume of its swim bladder to give it neutral buoyancy. If the fish swims upward or downward, the changing water pressure causes the bladder to expand or contract. Consequently, the fish must adjust the quantity of gas to restore the original volume and thus reestablish neutral buoyancy. Consider a large, 7.0 kg striped bass with a volume of 7.0 L. When neutrally buoyant, 7.0% of the fish’s volume is taken up by the swim bladder. Assume a bodytemperature of 15°C.a. How many moles of air are in the swim bladder when the fish is at a depth of 80 ft?b. What will the volume of the swim bladder be if the fish ascends to a 50 ft depth without changing the quantity of gas?c. To return the swim bladder to its original…
Fish control their buoyancy through the use of a swim bladder, a gas-filled organ inside the body. You can assume
that the pressure inside the swim bladder is roughly equal to the external water pressure. A fish swimming
at a particular depth adjusts the volume of its swim bladder to give it neutral buoyancy. If the fish swims
upwards or downwards, the changing water pressure causes the bladder to expand or contract. Consequently,
the fish adjusts the amount of gas in the bladder to restore it to the original volume and reestablish neutral
buoyancy. Consider a large, 10.0 kg striped bass swimming in fresh water. When neutrally buoyant, 7% of the
total volume of the fish is taken up by air in the swim bladder. Assume a constant body temperature of 15°C
and neglect the mass of the air in your calculations. If the fish begins at a depth of 20 meters, what will the
volume of the swim bladder be if the fish ascends to a depth of 10 m without changing the quantity of gas in
the swim bladder?
Chapter 13 Solutions
College Physics: A Strategic Approach (4th Edition)
Ch. 13 - Which has the greater density, 1 g of mercury or...Ch. 13 - Prob. 2CQCh. 13 - Prob. 3CQCh. 13 - Prob. 4CQCh. 13 - Prob. 5CQCh. 13 - Prob. 6CQCh. 13 - Prob. 7CQCh. 13 - Prob. 8CQCh. 13 - Prob. 9CQCh. 13 - A steel cylinder at sea level contains air at a...
Ch. 13 - Prob. 11CQCh. 13 - Imagine a square column of the atmosphere, 1 m on...Ch. 13 - Prob. 13CQCh. 13 - Prob. 14CQCh. 13 - A beaker of water rests on a scale. A metal ball...Ch. 13 - Prob. 16CQCh. 13 - Prob. 17CQCh. 13 - Prob. 18CQCh. 13 - A heavy lead block and a light aluminum block of...Ch. 13 - When you place an egg in water, it sinks. If you...Ch. 13 - The water of the Dead Sea is extremely salty,...Ch. 13 - Fish can adjust their buoyancy with an organ...Ch. 13 - Prob. 23CQCh. 13 - Prob. 24CQCh. 13 - Prob. 25CQCh. 13 - Prob. 27CQCh. 13 - Prob. 28CQCh. 13 - Is it possible for a fluid in a tube to flow in...Ch. 13 - Prob. 31CQCh. 13 - Prob. 32MCQCh. 13 - Figure Q.13.33 shows a 100 g block of copper ( =...Ch. 13 - Masses A and B rest on very light pistons that...Ch. 13 - Prob. 35MCQCh. 13 - Prob. 36MCQCh. 13 - A large beaker of water is filled to its rim with...Ch. 13 - Prob. 38MCQCh. 13 - Prob. 40MCQCh. 13 - An object floats in water, with 75% of its volume...Ch. 13 - Prob. 42MCQCh. 13 - Water flows through a 4.0-cm-diameter horizontal...Ch. 13 - A 15-m-long garden hose has an inner diameter of...Ch. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - A standard gold bar stored at Fort Knox, Kentucky,...Ch. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - A tall cylinder contains 25 cm of water. Oil is...Ch. 13 - A 35-cm-tall, 5.0-cm-diameter cylindrical beaker...Ch. 13 - The gauge pressure at the bottom of a cylinder of...Ch. 13 - Prob. 12PCh. 13 - A research submarine has a 20-cm-diameter window...Ch. 13 - The highest that George can suck water up a very...Ch. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Glycerin is poured into an open U-shaped tube...Ch. 13 - A U-shaped tube, open to the air on both ends,...Ch. 13 - What is the height of a water barometer at...Ch. 13 - A cargo barge is loaded in a saltwater harbor for...Ch. 13 - Prob. 22PCh. 13 - A 10 cm 10 cm 10 cm wood block with a density of...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - What is the tension in the string in Figure...Ch. 13 - To determine an athletes body fat, she is weighed...Ch. 13 - Prob. 28PCh. 13 - Styrofoam has a density of 32 kg/m3. What is the...Ch. 13 - Prob. 30PCh. 13 - Calculate the buoyant force due to the surrounding...Ch. 13 - Prob. 32PCh. 13 - Water flowing through a 2.0-cm-diameter pipe can...Ch. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - Prob. 37PCh. 13 - Prob. 39PCh. 13 - Prob. 40PCh. 13 - What pressure difference is required between the...Ch. 13 - Prob. 42PCh. 13 - Water flows at 0.25 L/s through a 10-m-long garden...Ch. 13 - Prob. 44PCh. 13 - Prob. 45PCh. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 49PCh. 13 - Prob. 50PCh. 13 - As discussed in Section 13.3, a persons percentage...Ch. 13 - The density of aluminum is 2700 kg/m3. How many...Ch. 13 - An oil layer floats on 85 cm of water in a tank....Ch. 13 - Prob. 55GPCh. 13 - Prob. 56GPCh. 13 - A sphere completely submerged in water is tethered...Ch. 13 - Prob. 58GPCh. 13 - A 5.0 kg rock whose density is 4800 kg/m3 is...Ch. 13 - A flat slab of styrofoam, with a density of 32...Ch. 13 - A 2.0 mL syringe has an inner diameter of 6.0 mm,...Ch. 13 - Prob. 62GPCh. 13 - The leaves of a tree lose water to the atmosphere...Ch. 13 - II A hurricane wind blows across a 6.00 m 5.0 m...Ch. 13 - Prob. 65GPCh. 13 - Prob. 66GPCh. 13 - Prob. 67GPCh. 13 - Prob. 68GPCh. 13 - Prob. 69GPCh. 13 - Smoking tobacco is bad for your circulatory...Ch. 13 - A stiff, 10-cm-long tube with an inner diameter of...Ch. 13 - Suppose that in response to some stimulus a small...Ch. 13 - Prob. 73MSPPCh. 13 - Prob. 75MSPP
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