From li.shi@utoronto.ca Thu Apr  3 19:42:48 2008
Date: Thu, 03 Apr 2008 19:42:28 -0400
From: li.shi@utoronto.ca
To: Tony Key <key@physics.utoronto.ca>
Subject: Q4 N&R PS#6 Dose from Fall-Out

Hi Professor Key,

For part B of the MasteringPhysics question "Q4 N&R PS#6 Dose from
Fall-Out", it asks "What is the increased risk to people exposed to such a
level of 90Sr of contracting fatal cancer from this source alone over a
lifetime of 60.0 years?".

I just multiply my answer from part A by the lifetime (60 years), then
multiply that by 5%, right?

How come MasteringPhysics says my answer is incorrect?

Looking forward to your reply.

Thanks.

Lily