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Coefficient of restitution e=1 for  collision.

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Important Questions on Work, Energy and Power

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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 16
Can kinetic energy of a system be increased without applying any external force?
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 18
Comment on the nature of work done by the stretching force on a spring.
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 19
What is the source of K.E. of the falling rain drops?
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 20
Does kinetic energy depend on the direction of motion? Can it be negative?
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 21
Does work done in moving a body depend on how fast or how slow the body is moved?
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 22
Does KE of a system depend on frame of reference?
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 23
What happens to the PE of an air bubble as it rises in water?
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Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 24
Name the smallest and largest practical unit of energy.