Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
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Chapter 4.3, Problem 33R
To determine

To calculate: The amount mechanical energy converted into thermal energy.

Expert Solution & Answer
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Answer to Problem 33R

  4000 J_ of mechanical energy is converted into thermal energy.

Explanation of Solution

Given data:

Mechanical energy of the bicycle at the top of the hill, Emechanical=6000 J

Gravitational potential energy of the bicycle at the bottom of the hill, GPE=2000 J

Concept used:

Gravitational potential energy is a form of mechanical energy.

Total energy of a system is conserved.

Calculation:

As per the problem,

  Emechanical=6000 JGPE=2000 J

Since, Gravitational potential energy is a form of mechanical energy.

So, amount of mechanical energy converted to thermal energy is

  Ethermal=EmechanicalGPE=6000 J2000 J=4000 J

Conclusion:

  4000 J_ of mechanical energy is converted into thermal energy.

Chapter 4 Solutions

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)

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