Chapter 4.8, Problem 14AYU

Newton’s Law of Cooling A thermometer reading ${\text{72}}^{\text{o}}\text{F}$ is placed in a refrigerator where the temperature is a constant ${\text{38}}^{\text{o}}\text{F}$.

If thermometer reads ${\text{60}}^{\text{o}}\text{F}$ after $2$ minutes, what will it read after $7$ minutes?

How long will it take before the thermometer reads ${\text{39}}^{\text{o}}\text{F}$?

Determine the time that must elapse before the thermometer reads ${\text{45}}^{\text{o}}\text{F}$.

What do you notice about the temperature as time passes?