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Chapter 44: Q47P (page 1365)

How much energy would be released if Earth were annihilated by collision with an anti-Earth?

Short Answer

Expert verified

this energy will power the sun for $8.826 \times 10^{7}$ years.

Step by step solution

Earth annihilation by collision

During the annihilation of matter and antimatter whole mass converts to energy. mass of earth made of matter and antimatter is equal.

this energy will power the sun for $8.826 \times 10^{7}$ years.

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Most popular questions from this chapter

The $A_{2}^{+}$ particle and its products decay according to the scheme

$A_{2}^{+} \to ρ^{0} + π^{+} ρ^{0} \to π^{+} + π^{-} π^{+} \to μ^{+} + ν μ^{+} \to e^{+} + ν + \bar{ν} π^{-} \to μ^{-} + \bar{ν} μ^{-} \to e^{-} + ν + \bar{ν}$

(a) What are the final stable decay products? From the evidence,(b) is the $A_{2}^{+}$ particle, a fermion or a boson and (c) is it a meson or a baryon?(d) What is its baryon number?

Use the conservation laws and Tables 44-3 and 44-4 to identify particle $x$ in each of the following reactions, which proceed by means of the strong interaction: (a) $p + p \to p + Λ^{0} + x$ (b) $p + \bar{p} \to n + x$ (c). $π^{-} + p \to Ε^{0} + K^{0} + x$

A positively charged pion decays by Eq. 44-7 : $π^{+} \to μ^{+} + ν$

What must be the decay scheme of the negatively charged pion?

(Hint:The $π$ is the antiparticle of the $π^{+}$ )

If Hubble’s law can be extrapolated to very large distances, at what distance would the apparent recessional speed become equal to the speed of light ?

Question: By examining strangeness, determine which of the following decays or reactions proceed via the strong interaction: (a) $K^{0} \to π^{+} + π^{-}$ (b) $Λ^{0} + p \to Σ^{+} + n$ (c) $Λ^{0} \to p + π^{-}$ (d) $K^{-} + p \to Λ^{0} + π^{0}$ .

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How much energy would be released if Earth were annihilated by collision with an anti-Earth?

Short Answer

Step by step solution

Earth annihilation by collision

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Most popular questions from this chapter

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