Physics, 30.07.2019 17:10 naseersaad
Afloor polisher has a rotating disk that has a 15-cm radius. the disk rotates at a constant angular velocity of and is covered with a soft material that does the polishing. an operator holds the polisher in one place for 45 s, in order to buff an especially scuffed area of the floor. how far (in meters) does a spot on the outer edge of the disk move during this time?
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Afloor polisher has a rotating disk that has a 15-cm radius. the disk rotates at a constant angular...
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