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{\bf Introduction to Astrophysics I, 29:119\\
     Fall, 2006\\
Sixth Homework Set...October 20, 2006.\\ Due October 26, 2006}\\
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Show calculations and give reasons for your answers. Don't go around 
confused and despondent; if you do not know how to get started, ask me for help. All problem numbers refer to the first edition of the book.\\


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{\bf (1)} Problem 7.2     \\

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{\bf (2)} Problem 7.3 \\

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{\bf (3)} Problem 7.4 \\ 

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{\bf (4)} Problem 7.5\\

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{\bf (5)} Problem 8.1\\

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{\bf (6)} Problem 8.2\\

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{\bf (7)} Problem 8.3\\

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{\bf (8)} Problem 8.4\\




 
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