Physics, 26.09.2019 21:30 kelkel4731
Cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its center like a merry-go-round. initially the cockroach and disk rotate together with an angular velocity of ? 0. then the cockroach walks halfway to the center of the disk. (a what then is the angular velocity of the cockroach-disk system? (b what is the ratio k/k0 of the new kinetic energy of the system to its initial kinetic energy? state your answer in terms of the given variables.
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Cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its ce...
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