MURD3R W3 WR07E.. TH3 PROC3SS..

1. What is the Newton’s Law of Cooling?
When I investigated, I found that the Newton’s law of cooling is the difference temperature between an object’s temperature and the surrounding environment temperature; this method is very useful when a corpse is found inside a building, and when the environment temperature is controlled.

2. What variables in your problem correspond with the variables in the Newton’s Law of Cooling?
The variables are the environment temperature [yt] (that is controlled and it depend on time, 70ºF or 75ºF) and the corpse temperature [y] [that depends if the person was healthy (98.7ºF), regular (99.5ºF) or sick (101ºF)]. Also it is the variable of time [t] (that is t=0 when is 9:10PM and t=6 when is 9:16PM).

3. According to this Law, at what time approximately the death happened?

1) If room temperature was 75ºF

a) Healthy (98.7ºF) --> 8:55:7 PM

b) Regular (99.5ºF) --> 8:51:2 PM

c) Sick (101ºF) --> 8:43:4 PM

2) If room temperature was 70ºF

a) Healthy (98.7ºF) --> 8:54:5 PM

b) Regular (99.5ºF) --> 8:50:4 PM

c) Sick (101ºF) --> 8:43:5 PM

In conclusion, the death was between 8:43PM and 8:55PM.

4. How does the room temperature affect the time of death?
It affects a lot because is something that changes the corpse temperature, it affects radically. I noticed that it also affects our result, it affects directly to our formula, and will affect like I said, the result.

5. How does an illness (e.g. fever) affect the time of death?
With the temperature of body, an ill body will increase its temperature, that means that it will change different with the environment temperature affecting it directly. So it will affect the estimating time of death.

6. How exact is the approximation of the Newton’s Law of Cooling for predicting the time of death?
It is satisfactorily approximated.