Book edition 9th Edition

Author(s) Raymond A. Serway, John W. Jewett

Pages 1624 pages

ISBN 9781133947271

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Short Answer

Question: A piece of unpainted porous wood barely floats in an open container partly filled with water. The container is then sealed and pressurized above atmospheric pressure. What happens to the wood? (a) It rises in the water. (b) It sinks lower in the water. (c) It remains at the same level.

Block will float on the surface of water, and remains at the same level. Hence option (b) is the correct answer.

See the step by step solution

Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Archimedes’ principle

When an object is partially or fully submerged in a fluid, the fluid exerts on the object an upward force called the buoyant force. According to Archimedes’s principle, the magnitude of the buoyant force is equal to the weight of the fluid displaced by the object:

B = $ρ_{F l u i d} g V_{d i s p}$

Where V_disp the volume of fluid is displaced and $ρ$ _Fluidis the density of the fluid.

Step 2: Find what happens to the wood

According to Archimedes’s principle, the block will float on the water because, when pressure increases, volume decreases and ultimately density will also decrease.

Hence block will float on the surface of water, and remains at the same level. Hence option (b) is the correct answer.

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Physics For Scientists & Engineers

Answers without the blur.

Short Answer

Question: A piece of unpainted porous wood barely floats in an open container partly filled with water. The container is then sealed and pressurized above atmospheric pressure. What happens to the wood? (a) It rises in the water. (b) It sinks lower in the water. (c) It remains at the same level.

Step by Step Solution

Step 1: Archimedes’ principle

Step 2: Find what happens to the wood

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Select your language

Physics For Scientists & Engineers

Answers without the blur.

Short Answer

Question: A piece of unpainted porous wood barely floats in an open container partly filled with water. The container is then sealed and pressurized above atmospheric pressure. What happens to the wood? (a) It rises in the water. (b) It sinks lower in the water. (c) It remains at the same level.

Step by Step Solution

Step 1: Archimedes’ principle

Step 2: Find what happens to the wood

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