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Past Exam for PHYS 009 - Introductory Physics II with Kiley at UC-Merced (UC Merced)

Exam Information

Material Type:Mid-Term
Professor:Kiley
Class:PHYS 009 - Introductory Physics II
Subject:Physics
University:University of California-Merced
Term:Spring Semester 2009
Keywords:
  • Electrostatic Attraction
  • The Nucleus
  • In/on/at a Place
  • No Molecules
  • Separation Distance
  • Total Charge
  • Calculators
  • Useful Information
  • Gravitational Constant
  • Integrating
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Physics 9 Spring 2009 Midterm For the midterm, you may use one sheet of notes with whatever you want to put on it, front and back. Please sit every other seat, and please don't cheat! If something isn't clear, please ask. You may use calculators. All problems are weighted equally. PLEASE BOX YOUR FINAL ANSWERS! You have the full length of the class. If you attach any additional scratch work, then make sure that your name is on every sheet of your work. Good luck! 1. The most reactive isotope of uranium, 235U, which has 92 protons and 143 neutrons, undergoes ssion under the in uence of an additional neutron. One possible (simpli- ed) decay reaction is given below 235U +n0!236U!91Kr + 141Ba+ 3n0; with the energy released being carried away by the kinetic energy of the products. (a) Suppose we wanted to break the uranium nucleus apart using a proton, instead. How fast would we need to re the proton at the nucleus in order to overcome the electrostatic repulsion so that the proton hits the 235U n...

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