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A 0.25 m power sawblade has a mass of 0.5 kgdistributed uniformly as in a disc. What is the rotational kinetic energy at3600 rpm (revolutions per minute)
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Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?
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Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.
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A 0.25 m power sawblade has a mass of 0.5 kgdistributed uniformly as in a disc. What is the rotation...
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