Recent content by senatorarmstrong

  1. senatorarmstrong

    Calculating the Travel Time of High-Energy Particles Across Our Galaxy

    Homework Statement Our galaxy is about 10^5 light-years across, and the most energectic particles known have an energy of about 10^19 eV. How long would it take a proton with this energy to traverse the galaxy as measured from (a) the galaxy and (b) the particle? Homework Equations I...
  2. senatorarmstrong

    Courses Readiness for classical mechanics with incomplete differential equations

    Hello PF, I am taking classical mechanics this fall and I am horrified. I am just not sure if I have the mathematics background for the class. I am still finishing differential equations (about half way done) and I am almost done with calculus 3. The pre-requisite for the class is DE...
  3. senatorarmstrong

    How can I fill in the gaps in my understanding of physics?

    Hello everyone! I have found myself on this website before, but never made an account. I have finally decided it is time I join this community. I am a physics major currently working on pursuing my degree. I feel as if sometimes there is one small aspect of a problem that I don't understand. I...
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