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Physics, 22.06.2019 08:30
Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?
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Physics, 23.06.2019 00:20
Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)
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Physics, 23.06.2019 06:30
If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.
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Physics, 23.06.2019 08:30
The center of a long frictionless rod is pivoted at the origin, and the rod is forced to rotate in a vertical plane with constant angular velocity \omega. write down the lagrangian for a bead of mass m threaded on the rod, using r as your generalized coordinate, where r, \phi are the polar coordinates of the bead. (notice that \phi is not an independent variable since it is fixed by the rotation of the rod tobe \phi = \omega * t) solve lagrange's equation for r(t). what happens if the bead is initially at rest at the origin? if it is released from any point ro > 0, show that r(t) eventually grows exponentially. explain your results in terms of the centrifugal force m* \omega ^2 *r.
Answers: 3
Acannon ball launched horizontally with a speed of 20m/s and a baseball dropped off a cliff and it a...
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