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Chapter 44: 47P (page 1365)
Question:How much energy would be released if Earth were annihilated by collision with an anti-Earth?
this energy will power the sun for 8.826*10^7 years.
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Three cosmologists have each plotted a line on the Hubble-like graph of Fig. 44-11. If we calculate the corresponding age of the universe from the three plots, rank the plots according to that age, greatest first.
The particle and its products decay according to the scheme
(a) What are the final stable decay products? From the evidence,(b) is the particle, a fermion or a boson and (c) is it a meson or a baryon?(d) What is its baryon number?
The rest energy of many short-lived particles cannot be measured directly but must be inferred from the measured momenta and known rest energies of the decay products. Consider the meson, which decays by the reaction. Calculate the rest energy of the meson given that the oppositely directed momenta of the created pions each have a magnitude 358.3 MeV. See Table 44-4 for the rest energies of the pions.
A particle has these quantum numbers: strangeness, charge localid="1663129613215" , and spin . Which of the following quark combinations produces it: (a)localid="1663129790732" , (b) localid="1663129802044" , (c) localid="1663129809885" , (d), localid="1663129816290" , or(e) localid="1663129823320" ?
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