Consider a CI nucleus to be a sphere with the seventeen protons uniformly distributed throughout. (a) Determine the radius of this sphere (in m). m 3k Q2 (b) If the energy needed to assemble a uniformly charged sphere of charge Q and radius R from separate charges is U = determine the energy (in MeV) needed to assemble a uniformly charged sphere consisting of seventeen protons and with the radius determined in part (a). Mev (c) Determine the binding energy (in MeV) for the nucleus CI. (Let the mass of a proton be 1.0078 u, the mass of a neutron be 1.0087 u, and the mass of 17CI be 34.9689 u.) Mev

A certain medium has the following properties: Σs = 0.1 cm−1,Σa = 0.01 cm−1. a) What is the probability that a neutron will travel 1 cm in this medium without interacting with a nucleus? b) If the neutron speed is 2 ×105 cm s−1, what is the average time between scattering collisions?

In a scattering experiment, an alpha particle A is projected with the velocity up = -(600 m/s)i + (750 m/s)j - (800 m/s)k into a stream of oxygen nuclei moving with a common velocity vo = (630 m/s)j. After colliding successively with nuclei B and C, particle A is observed to move along the path defined by the Points A₁(280, 240, 120) and A2(360, 320, 160), while nuclei B and Care observed to move along paths defined, respectively, by B₁(147, 220, 130), B2(114, 290, 120), and by C₁(240, 232, 90) and C₂(240, 280, 75). All paths are along straight lines and all coordinates are expressed in millimeters. Knowing that the mass of an oxygen nucleus is four times that of an alpha particle, determine the speed of each of the three particles after the collisions. The speed of particle A is The speed of particle B is The speed of particle Cis m/s. m/s. m/s.

The cross section for a 2.0-MeV neutron (a typical energy for a neutron released in fi ssion) being absorbed by a 238U nucleus and producing fi ssion is 0.68 barn. For a pure 238U sample of thickness 3.2 cm, what is the probability of a 2.0-MeV neutron producing fi ssion? (p = 19 g/cm3 for uranium)