Newton's Law of Cooling expresses the relationship between the temperature of a cooling object y and the time t elapsed
since cooling began, in minutes. This relationship is given by y-ae+c, where c is the temperature of the medium
surrounding the cooling object, a is the difference between the initial temperature of the object and the surrounding
temperature, and k is a constant related to the cooling object.
-The initial temperature of a liquid is 160°F. When it is removed from the heat, the temperature in the room is 76°F. For this
object, k - 0.23. Use Newton's Law of Cooling to find the temperature of the liquid after 15 minutes.
a. 73.6°F
C. 79.2°F
b. 78.70F
d. 83.5°F