Book edition 7th

Author(s) Douglas C. Giancoli

Pages 978 pages

ISBN 978-0321625922

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Short Answer

Goose down sleeping bags and parkas are often specified as so many inches or centimeters of loft, the actual thickness of the garment when it is fluffed up. Explain.

Loft values indicate the thickness of the materials. You know that the rate of heat transfer is inversely proportional to thickness. So, the more the loft value, the better the insulator. When it is fluffed up, the garment becomes a better insulator of heat, lowering the rate of heat flow from the body to nature.

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TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Concepts

Air is a poor conductor of heat as it has a lower value of thermal conductivity.

When the garments are fluffed up, more air is present inside them, and they become a better insulator.

Step 2: Explanation

Loft values indicate the thickness of the materials. You know that the rate of heat transfer is inversely proportional to thickness. So, the more the loft value, the better the insulator of heat. When it is fluffed up, the garment becomes a better insulator of heat, lowering the rate of heat flow from the body to nature.

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Physics Principles with Applications

Answers without the blur.

Short Answer

Goose down sleeping bags and parkas are often specified as so many inches or centimeters of loft, the actual thickness of the garment when it is fluffed up. Explain.

Step by Step Solution

Step 1: Concepts

Step 2: Explanation

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Physics Principles with Applications

Answers without the blur.

Short Answer

Goose down sleeping bags and parkas are often specified as so many inches or centimeters of loft, the actual thickness of the garment when it is fluffed up. Explain.

Step by Step Solution

Step 1: Concepts

Step 2: Explanation

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