Physics, 09.01.2020 05:31 romanbattistelli23
Aflat uniform circular disk (radius = 2.00 m, mass = 1.00
x102 kg) is initially stationary. the disk is freeto
rotate in the horizontal plane about a frictionless
axisperpendicular to the center of the disk. a 40.0 kg
person, standing 1.25 m from the axis, begins to run on the disk in
acircular path and has a tangential speed of 2.00 m/s relative
tothe ground. find the resulting angular speed of the disk
(inrad/s) and describe the direction of the rotation.
Answers: 2
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Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)
Answers: 1
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The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory
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Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called
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Aflat uniform circular disk (radius = 2.00 m, mass = 1.00
x102 kg) is initially stationary. th...
x102 kg) is initially stationary. th...
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