1. What is the Newton’s Law of Cooling?

It says that the temperature of a body changes with a rate relative to the temperature of its surroundings or environment.

2. What variables in your problem correspond with the variables in the Newton’s Law of Cooling?

The body was found à T= 9:10 PM º = 96 degrees

T= 9:16 PM º = 95 degrees

T= 0 º = 101 degrees (but was possible illed)

Library’s temperature à T= 8:00 PM º = 75 degrees

T= 9:00 PM º= 70 degrees

3. According to this Law, at what time approximately the death happened?
4. How does the room temperature affect the time of death?

As we know, the Newton’s law of cooling compares the temperature of the body with the one of the room or environment, so it depends on the different temperatures of the room at different times to determine the time of death.

5. How does an illness (e.g. fever) affect the time of death?

It affects because the temperature of the body before being killed is unknown, and it would be uncertain to give a “possible temperature” because having the equations done, the time will be different by seconds or minutes, which will affect the results.

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

It depends on the environment in which the body is, and the health of the body as well, if the environment’s temperature is constantly changing, it is harder to get an exact result and if the body has fever is the same (question 4&5), but the answer would be aprroximated indeed.

Murder We Wrote 2nd =)

Questions:


4. What methods are commonly used to find the time of death?

*The rate method: it measures the changes on the body comparing it with one known initial or final rate, for example the changes of temperature of the body.
*The concurrence method: it compares something that happened in the crime with something known that happened to the victim before the crime, for example the last known meal.
*By the living animals in the body (larvas/bugs), it is usually used when the body has been outside (not on a closed place) for a reasonable time.
*Algor Mortis
* cooling law of newton: is about what we are learning on class, the temperature of the body is compared with the environmental temperature.

5. What factors are considered in Algor Mortis?
1. The "size" of the body.
2. Clothing and coverings.
3. Movement and humidity of the air.
4. Immersion in water.

*temperature and external factors.

6. How does the environment affect the time of death?

by the larvae living on the corpse, if the body is exposed to a open environment, there is more chance for the body to grow larvae and that's how forensic scientists according to the size of the larvae can tell how many time has been there, another things is the clothes of the body because it changes the temperature, also the water or humidity, for example, if it rains it is difficult to tell the time of death of the body.

7. What can you tell about the different methods of temperature reading of the body? Do they make a difference in the results?

Of course they make a difference, and all of them are very useful because if there are suspects, it is possible to know who was the murderer or at least tell if they are telling the truth, mostly by the method of the cooling law of newton, besides it also helps to know if what the witnesses say is true, if some witness is lying about when they saw the body or the murderer too.

All methods are useful to solve crimes

topss =)

me quedó 90 =) nose que decir de la semana en mate, nomas que fue: estudiar, examen, incertidumbre, descanso... ya me voy rápido porque sino la pag se enoja conmigo y no me deja subir jaja luego le agrego algo y lo pongo bonito =)

el prox parcial le voy a hechar más ganas =D
bye :**

8-|

mañanaa exameeeen...!!!

Murder We Wrote ;)!

Team’s name: Los Topis

Integrants:

• Topacio Campos Muñoz
• Yuliana Sáchez Camporredondo
• Aitza Terán Roldán
• Armando Amor González

Roles "Murder We Wrote":
The Math Expert: Yuliana
The Media Expert: Armando
The Journalist: Topacio
The Forensic Scientist: Aitza

Questions:

1. What is forensic science?

Is the application of science to solve crimes and answer questions of interest to civil law.

2. What kind of evidence can be collected in a murder case?

Fingerprints, footprints, time of death, DNA, toothmarks, physical evidence, etc

3. Why is important to determine the time of death?

Because knowing the time of death allows the investigator to determine if the possible murderer/ suspect is guilty or not, or together with the other evidences to determine who the murderer was. Time of death can be determined by the body’s temperature, muscles hardening or the insects living in the corpse.

4. Write a short paragraph about what you think is the GOAL or MAIN objective of the final project.

We think that this project “Murder we Wrote” seeks to motivate us, as students to learn more about the applications of mathemathics and how it can be related to other areas of study such as biology or forensic science among others; to notice that there’s plenty of maths out there and we can actually be part of them if we like. And it can be very interesting and funny indeed.

Bueeeno.. ahí esta la info del equipo de mate =)

(8) Queen - Don`t Stop Me Now ;)