Homework SourseForensic scientists use the following law to determine the t
Forensic scientists use the following law to determine the time of death of accident or murder victims. If T denotes the temperature of a body t hr after death, then
T = T0 + (T1 - T0)(0.97)^t
where T0 is the air temperature and T1 is the body temperature at the time of death. John Doe was found murdered at midnight in his house, when the room temperature was 68
T = T0 + (T1 - T0)(0.97)^t
where T0 is the air temperature and T1 is the body temperature at the time of death. John Doe was found murdered at midnight in his house, when the room temperature was 68
Solution
86=68+(98.6-68)(.97^t)
18=30.6(.97^t)
18/30.6=(.97^t) take ln of both sides and use properties of logs
ln(.588235)/ln(.97)=t
t=17.42 hours ago
