30_InstSolManual_PDF_Part15 - Nuclear and High-Energy...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
30.60. Set Up: In a time of one half-life the number of radioactive nuclei and the activity decrease by a factor of 2. Note that Solve: (a) 1 half-life: 2 half-lives: 3 half-lives: 4 half-lives: 5 half-lives: (b) In time the activity has decreased by a factor of two n times, so This general result agrees with the results of part (a). (c) so (d) (e) Taking the natural log of both sides of this equation gives and (f) From part (e), 30.61. Set Up: Neglect the mass of the antineutrino. Solve: The mass decrease is The energy equivalent is 30.62. Set Up: The particle emitted in decay is an electron, In a time of one half-life the number of radioactive nuclei decreases by a factor of 2. Solve: (a) The daughter nucleus is (b) 56 yr is so 25% is left. (c) so 30.63. Set Up: The reaction energy is where and If neutral atom masses from Table 30.2 are used, the electron masses cancel. If energy is liberated in the reaction. If energy is absorbed in the reaction. Solve: 10.1 MeV is absorbed.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern