Physics, 29.11.2019 05:31 genyjoannerubiera
Auniform disk of mass 10m and radius 3.0r can rotate freely about its fixed center like a merry-go-round. a smaller uniform disk of mass m and radius r lies on top of the larger disk, concentric with it. initially the two disks rotate together with an angular velocity of 20 rad/s. then, a slight disturbance causes the smaller disk to slide outward across the larger disk, until the outer edge of the smaller disk catches on the outer edge of the larger disk. afterward, the two disks again rotate together (without further sliding).
(a) what then is their angular velocity about the center of the larger disk?
(b) what is the ratio k/k0 of the new kinetic energy of the two-disk system to the system’s initial kinetic energy?
Answers: 3
Physics, 22.06.2019 07:40, Alex9089435028
Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
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Physics, 22.06.2019 19:00, sanchez626
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
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Physics, 23.06.2019 01:00, zitterkoph
Is the number of complete movements of a wave per second.
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Auniform disk of mass 10m and radius 3.0r can rotate freely about its fixed center like a merry-go-r...
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