CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
9th Edition
ISBN: 9780321052025
Author: Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 8A
When the mass of something decreases, does it emit or absorb energy?
Expert Solution & Answer
To determine
If mass of something decreases, does it emit or absorb energy.
Explanation of Solution
Introduction:
The amount of energy E is directly related to mass m as per the Einstein's Mass energy equation. Energy and mass are same.
A change in energy of an object at rest takes place along with change in its mass.
As mass of an object decreases it emits the energy equal to loss of mass. For all chemical reactions that emit energy, there is decrease in mass.
Conclusion:
If the mass of something decreases, energy is emitted.
Chapter 16 Solutions
CONCEPTUAL PHYSICS-W/PRACTICING PHYSICS
Ch. 16 - What would be the momentum of an object if it were...Ch. 16 - Prob. 2ACh. 16 - Prob. 3ACh. 16 - Prob. 4ACh. 16 - What is the numerical quantity of the ratio rest...Ch. 16 - Prob. 6ACh. 16 - Prob. 7ACh. 16 - When the mass of something decreases, does it emit...Ch. 16 - Compare the relative amounts of mass lost in...Ch. 16 - Prob. 10A
Ch. 16 - What results when low everyday speeds are used in...Ch. 16 - Do the equations of Newton and Einstein overlap,...Ch. 16 - Prob. 13ACh. 16 - Prob. 14ACh. 16 - What is a geodesic?Ch. 16 - According to general relativity, in what paths do...Ch. 16 - What is the evidence for light bending near the...Ch. 16 - Which runs faster, a clock at the top of the Sears...Ch. 16 - Prob. 19ACh. 16 - Does Einsteins theory of gravitation invalidate...Ch. 16 - Electrons are fired at different speeds through a...Ch. 16 - To an Earth observer, metersticks on three...Ch. 16 - What happens to the momentum of a massive object...Ch. 16 - When a charged particle moves through a magnetic...Ch. 16 - Prob. 25ACh. 16 - Does a fully charged flashlight battery weigh more...Ch. 16 - Two safety pins, identical except that one is...Ch. 16 - A friend says that the equation E=mc2 has...Ch. 16 - Prob. 29ACh. 16 - An astronaut awakes in her closed capsule, which...Ch. 16 - An astronaut is provided 'gravity' when the ships...Ch. 16 - What happens to the separation distance between...Ch. 16 - Your friend whimsically says that at the North...Ch. 16 - We readily note the bending of light by reflection...Ch. 16 - Prob. 35ACh. 16 - Your friend says that light passing the sun is...Ch. 16 - In 2004 when Mercury passed between the sun and...Ch. 16 - During the first second of its flight, a bullet...Ch. 16 - Prob. 39ACh. 16 - Do you age faster at the top of a mountain or at...Ch. 16 - Prob. 41ACh. 16 - Is light emitted from the surface of a massive...Ch. 16 - From our frame of reference on Earth, objects slow...Ch. 16 - Gravitational waves are difficult to detect. Is...Ch. 16 - A 100-watt light bulb consumes 100 joules of...Ch. 16 - Prob. 46ACh. 16 - Prob. 47A
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