Science Homework Help

1. Consider a typical CR particle at the lower energy limit and the upper energy limit of the measurements shown in Figure 1.8 and compute the following:
   1. 1. the ratio of kinetic to total energy, T/E. Which energy dominates: the kineticenergy or the rest mass energy?
      2. At what kinetic energy is the rest mass energy only 10% of the total energy? Where does this fall in Figure 1.8?
   2. the Lorentz factor, .
   3. the ratio, /c. Over what range of energies are CR particles relativistic?
   4. Estimate the ratio of the number of particles at low energy to the number of particles at high energy. Where do most CRs originate?

   FIGURE 1.8 is attached for reference

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