Science:Math Exam Resources/Courses/MATH100/December 2011/Question 02 (b)/Statement

Full-Solution Problems. In questions 2-8, justify your answers and show all your work. If a box is provided, write your final answer there. Simplification of answers is not required unless explicitly stated.

A wealthy man was found murdered in his home. The police arrived on scene at 10:00 P.M. The temperature of the body at 10:00 P.M. was 33°C and one hour later it was 31°C. The temperature of the room in which the body was found was 21°C and normal body temperature is 37°C. Assume that the body cools after death according to Newton's Law of Cooling.

Did the murder occur before 9:00 P.M.? Please justify your answer.