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Physics / Physics: Principles with Applications 6 / Chapter 11 / Problem 1CQ

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

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Rub your hands together vigorously. What happens Discuss

Chapter 5, Problem 1CQ

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QUESTION:

Rub your hands together vigorously. What happens? Discuss the energy transfers and transformations that take place.

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QUESTION:

Rub your hands together vigorously. What happens? Discuss the energy transfers and transformations that take place.

ANSWER:

Step 1 First, we should list out what all energies will be produced or transformed while rubbing the hands. They are, Kinetic Energy, K (Due to the relative motion of the hands) Gravitational Potential energy, U [It can g represented as “Potential energy” (U). But, it is purely due to gravitational force exerted So, it should be represented as Gravitational Potential Energy] Chemical energy, E (The energy which is spend by the body to move the hands) Ch Thermal energy, E (We feeTht as hot while rubbing the hands).

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