Physics, 22.12.2020 01:00, diazmaya824
How many half-lives must go by for the radioactivity of this isotope to drop to (1/512) of its original value?
Answers: 1
Physics, 23.06.2019 07:30, linacelina6027
For two variables in a direct proportion, what is the result of doubling one variable?
Answers: 1
Physics, 23.06.2019 08:30, kaileyy06
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
How many half-lives must go by for the radioactivity of this isotope to drop to (1/512) of its origi...
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