1. [0/1 Points] DETAILS PREVIOUS ANSWERS OSCOLPHYS2016 33.1.P.001. MY NOTES ASK YOUR TEACHER A virtual particle having an approximate mass of 1014 GeV/c may be associated with the unification of the strong and electroweak forces. For what length of time in s could this virtual particle exist (in temporary violation of the conservation of mass-energy as allowed by the Heisenberg uncertainty principle)? 3e-39 S Additional Materials Reading3. [0/1 Points] DETAILS PREVIOUS ANSWERS OSCOLPHYSZO16 33.2.P.005. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The ratio of the strong to the weak force and the ratio of the strong force to the gravitational force become 1 under circumstances where they are unied. What are the ratios of the strong force to those two forces under normal circumstances? = 10e11 x Additional Materials I3 Reading 4. [05/1 Points] DETAILS PREVIOUS ANSWERS OSCOLPHYSZO16 33.3.P.006. MY NOTES ASK YOUR TEACHER At full energy, protons in the 2.00 km diameter Fermilab synchrotron travel at nearly the speed of light, since their energy is about 1000 times their rest mass energy. (a) How long in seconds does it take for a proton to complete one trip around? 2.09e-5 y s (b) How many times per second will it pass through the target area? 5. [0/1 Points] PREVIOUS ANSWERS OSCOLPHYSZO16 33.3.P.007. ASK YOUR TEACHER PRACTICE ANOTHER Suppose a W' created in a bubble chamber lives for 4.00 x 10'25 5. What distance in fm does it move in this time if it is traveling at 0.875c? Since this distance is too short to make a track, the presence of the W" must be inferred from its decay producls. Note that the time is longer than the given W' lifetime, which can be due to the statistical nature of decay or time dilation. 0.995 , 7 , 3: fm Addltlonal Materials III Reading 10. [0/1 Points] PREVIOUS ANSWERS OSCOLPHYSZO16 33.6.P.043. ASK YOUR TEACHER PRACTICE ANOTHER The intensity of cosmic ray radiation decreases rapidly with increasing energy, but there are occasionally extremely energetic cosmic rays that create a shower of radiation from all of the particles they create by striking a nucleus in the atmosphere as seen in the gure given below. Suppose a cosmic ray particle having an energy of 0.80 x 1010 GeV converts its energy into particles with masses averaging 500 MeV/cz. (a) How many particles are created? 5510 X particles (b) If the particles rain down on a 1.00 km2 area, how many particles are there per square meter? 554 X particles/m2 12. [0.66/1 Points] DETAILS PREVIOUS ANSWERS OSCOLPHYS2016 33.6.P.046. MY NOTES ASK YOUR TEACHER (a) Calculate the relativistic quantity y = V1 - 2/c2 for 1.00 TeV protons produced at Fermilab. 1.07e3 (b) If such a proton created a i having the same speed, how long would its life be (in s) in the laboratory? 2.77e-5 S (c) How far (in m) could it travel in this time? 8310 X +