Concept explainers
Cooling. The temperature in a whirlpool bath is 102°, and the room temperature is 75°. The water cools to 90° in 10 min.
a. Find the value of the constant a in Newton’s Law of Cooling.
b. Find the value of the constant k. Round to five decimal places.
c. What is the water temperature after 20 min?
d. How long does it take the water to cool to 80°?
e. Find the rate of change of the water temperature, and interpret its meaning.
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