Estimate the mean lifetime for an electric dipole transition in a nucleus of radius 2.0 fm, with photon energy 1.0 MeV.
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A beam of alpha particles (q = +2 e) is directed at a uranium (Z =92) target. The radius of a uranium nucleus is 7.4 fm. The closestapproach between centers of an alpha particle to a uranium is 30.0fm. The kinetic energy of the incident alpha particles is closestto:A) 10.5 MeV B) 6.0 MeV C) 9.0 MeV D) 4.5 MeV E) 7.5 MeV
The diameter of the an atomic nucleus is about 10 fm. What is the kinetic energy, in MeV, of a proton with a de Broglie wavelength of 10 fm?
The oxygen nucleus O(16) has a radius of 3.0 fm
Part A.
With what speed must a proton be fired toward an oxygen nucleusto have a turning point 1.5 fm from the surface? Assume thenucleus remains at rest.
Part B.
What is the proton's kinetic energy in MeV ?