What is the Newton’s Law of Cooling?
That the temperature of a corpse varies proportionally with the environments temperature.
What variables in your problem correspond with the variables in the Newton’s Law of Cooling?
The environment
Temperature of the corpse
According to this Law, at what time approximately the death happened?
WHAT DEATH :o /It is in my homework! =)
How does the room temperature affect the time of death?
Because the temperature changes proportionally to it.
How does an illness (e.g. fever) affect the time of death?
It affects the time of death because you have to look at what temperature does the corpse was before he/she died.
How exact is the approximation of the Newton’s Law of Cooling for predicting the time of death?
Pretty close, but like it says its an approximation =(.. a good approximation =)
domingo, 25 de febrero de 2007
Our ProbLeM! =)
Jest murder resolve group!
The dead body of professor H was found at the classroom at 6:50 am Friday, March 26th, 2007. The police determined that the cause of the death was a lethal injection with a substance that causes immediate death upon entering the bloodstream. The syringe was found at the scene with Miss X fingerprints on it. Needless to say, Miss X is a prime suspect. In fact, two reliable eyewitnesses at the school saw Miss X near the classroom at 7 am that same day. Miss X's alibi of being in Mr. R´s office can be verified, but only from 6 to 6:30am. Determine Miss X's innocence or guiltiness, attempt to determine whether or not the crime was committed after 6:50am.
Additional Facts:
-Miss X is in a community service at a clinical chemistry lab, and she is the one in charge of disposing used syringes.
-All DNA evidence in this case has been thrown out due to multiple lab errors.
-To determine the Algor Mortis, at 6:50 am, when the body of the professor was found, its temperature was 96 degrees. The body temperature was recorded again at 6:56 am and found to be 95 degrees.
-The classroom room temperature on night was recorded to be 75 degrees at 6 am, and 70 degrees at 7 am.
-Three days before the murder, the professor visited a physician, at which time the professor's body temperature was recorded at exactly 101 degrees.
-On the morning of the murder, before coming to work, the professor wrote the following journal entry:
"I have felt terrible ever since I had that horrible incident with one of my Heat students. What was his name, was it John? And for the past few days, I have had this terrible fever. I finally feel better today, not 100 percent, but nearly back to normal."
The dead body of professor H was found at the classroom at 6:50 am Friday, March 26th, 2007. The police determined that the cause of the death was a lethal injection with a substance that causes immediate death upon entering the bloodstream. The syringe was found at the scene with Miss X fingerprints on it. Needless to say, Miss X is a prime suspect. In fact, two reliable eyewitnesses at the school saw Miss X near the classroom at 7 am that same day. Miss X's alibi of being in Mr. R´s office can be verified, but only from 6 to 6:30am. Determine Miss X's innocence or guiltiness, attempt to determine whether or not the crime was committed after 6:50am.
Additional Facts:
-Miss X is in a community service at a clinical chemistry lab, and she is the one in charge of disposing used syringes.
-All DNA evidence in this case has been thrown out due to multiple lab errors.
-To determine the Algor Mortis, at 6:50 am, when the body of the professor was found, its temperature was 96 degrees. The body temperature was recorded again at 6:56 am and found to be 95 degrees.
-The classroom room temperature on night was recorded to be 75 degrees at 6 am, and 70 degrees at 7 am.
-Three days before the murder, the professor visited a physician, at which time the professor's body temperature was recorded at exactly 101 degrees.
-On the morning of the murder, before coming to work, the professor wrote the following journal entry:
"I have felt terrible ever since I had that horrible incident with one of my Heat students. What was his name, was it John? And for the past few days, I have had this terrible fever. I finally feel better today, not 100 percent, but nearly back to normal."
jueves, 22 de febrero de 2007
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