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https://physics.info/rotational-energy/
Rotational Energy – The Physics Hypertextbook
In some situations, rotational kinetic energy matters. When it does, it is one of the forms of energy that must be accounted for. Energy is always conserved.
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https://physics.info/
The Physics Hypertextbook
The Physics Hypertextbook is a reaction to three big problems with textbooks: lack of writer's voice, layouts that reduce readability, and outdated economics.
physics hypertextbook
https://physics.info/rotational-momentum/
Angular Momentum – The Physics Hypertextbook
Objects in motion will continue moving. Objects in rotation will continue rotating. The measure of this latter tendency is called rotational momentum.
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