Universe: Stars And Galaxies
Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 25, Problem 46Q
To determine

The form of energy that is the dominant contributor to the total energy in the universe today and whether this form of energy is always dominant.

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The law of conservation of energy states that energy can be converted from one form to another but cannot be created or destroyed. Therefore, the amount of energy in the universe is constant. In your initial post to the discussion, respond to the following prompts: What do you think would happen if energy were not conserved? Think of (and share) two scenarios in which our lives would be drastically altered if this law of conservation was not in place. At least one of your scenarios should be at the molecular level. Would the implications be positive? Negative? Explain.
Hello. I need help solving ( 9 & 10) with explanations, it goes with the diagram above. Please and thank you.
A 4.0 kg kg block of ice with a temperature of -10°C°C is placed on a large stone slab with a temperature of +10°C°C. The stone slab is so large that its temperature does not change. The ice and the slab are isolated from the rest of the universe. 1)What is ASice as the system comes to equilibrium? 2)What is ASstone as the system comes to equilibrium? 3)What is AStot as the system comes to equilibrium? please solve the question, numbers and units. answer to the first question is 5800
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