Newton’s Law of Cooling

The temperature of a body cooling according to Newton’s Law fell from 30\degree to 18\degree in 6 minutes.  Find the percent rate of decrease of temperature per minute.

Source: March, Herman W., and Wolff, Henry C. (1917). Calculus. New York: McGraw-Hill. (Question 2, p. 159)

Author: ascklee

Dr. Lee teaches at the Wee Kim Wee School of Communication and Information at the Nanyang Technological University in Singapore. He founded The Mathematics Digital Library in 2013.

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