BASIC BIOMECHANICS
8th Edition
ISBN: 9781259913877
Author: Hall
Publisher: RENT MCG
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Chapter 15, Problem 3AP
Summary Introduction
To explain: The maximum density of the body when it floats in fresh water and salt water.
Concept introduction: When an object is floating in water, the buoyant force thrusted upon the body is equal to the weight of the object.
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You are stranded on a lifeboat with several other people in the middle of the ocean. You have run out of clean drinking water and are very thirsty. The others have started to drink the seawater to quench their thirst. Since you’re waiting for rescue (and are a top notch AP Biology student), you decide to solve a couple of water potential problems to determine if drinking sea water is a good idea or not.
a) The majority of dissolved ions in seawater is NaCl, roughly a 0.5M concentration. The ionization constant of NaCl is 2.0. Calculate the solute potential for seawater if you know that the water is 2°C.
b) Your own cells have a 0.15M concentration. Calculate the solute potential for your own cells, knowing that body temperature is 37°C.
c) Using your knowledge about water potential, if you drink the seawater, wat will happen when the seawater comes into contact with your body’s cells? Note: ΨP for animal cells is zero
State the significance of Stoke's law in biological fluid flow
Chapter 15 Solutions
BASIC BIOMECHANICS
Ch. 15 - Prob. 1IPCh. 15 - A cyclist is riding at a speed of 14 km/hr into a...Ch. 15 - A skier traveling at 5 m/s has a speed of 5.7 m/s...Ch. 15 - Prob. 4IPCh. 15 - Prob. 5IPCh. 15 - Prob. 6IPCh. 15 - Prob. 7IPCh. 15 - What strategy can people use to improve their...Ch. 15 - What types of individuals may have a difficult...Ch. 15 - Prob. 10IP
Ch. 15 - A cyclist riding against a 12-km/hr headwind has a...Ch. 15 - A swimmer crossing a river proceeds at an absolute...Ch. 15 - Prob. 3APCh. 15 - A scuba diver carries camera equipment in a...Ch. 15 - A 50-kg person with a body volume of 0.055 m3...Ch. 15 - A 670-N swimmer oriented horizontally in...Ch. 15 - Based on your knowledge of the action of fluid...Ch. 15 - Explain the aerodynamic benefits of drafting on a...Ch. 15 - Prob. 9APCh. 15 - Explain why a curveball curves. Include a...
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