From key@physics.utoronto.ca Sun Mar 30 22:18:13 2008
Date: Sun, 30 Mar 2008 22:18:10 -0400
From: Tony Key <key@physics.utoronto.ca>
To: key@physics.utoronto.ca
Subject: Co 60 and Mass Energy Absorption Coefficient of air



Tony Key wrote:
> Hi  - thanks for your question.  Indeed it seems as if 0.026 is the
> required assumption for the mass energy absosrption coefficient for air
> also - due to the exponential effect, a small change in mu would produce a
> large change in the answer, so if you use even a slightly different value,
> the Mastering Physics tolerance of 5% says your answer is incorrect.  Use
> 0.026!
> 
> TonyK
> 
> 
> > 
> > 
> > Was I supposed to have assumed that the same 0.026 constant was also
> > applicable
> > to air?
>