Anucleus of radioactive radium (226ra), initially at rest, decays into a radon nucleus (222rn) and an alpha-particle (a 4he nucleus). if the kinetic energy of the alpha-particle is 6.72 × 10−13 j, what is (a) the recoil speed of the radon nucleus, and (b) its kinetic energy? the superscripts indicate, roughly, the mass of each nucleus in unified mass units (u), where 1 u = 1.66 × 10−27 k
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Physics, 21.06.2019 22:40, kiaunarayne808
The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively
Answers: 2
Physics, 22.06.2019 12:30, 21brooklynmartin
Which levels of government establish and implement educational requirements for minors
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Anucleus of radioactive radium (226ra), initially at rest, decays into a radon nucleus (222rn) and a...
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