3. A hot pie is just taken out from an oven with a set temperature of 175°F. It is placed near a window with an ambient temperature of 20°C. After 3minutes, the temperature of the pie is 150°F, determine how long it will take the pie have a temperature of 100°F. Determine also the time when the temperature of the pie is half a degree above the ambient temperature.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Differential Equation

APPLICATIONS OF FIRST ORDER DIFFERENTIAL 

Newton’s Law of Cooling and Joint Proportions

 

A hot pie is just taken out from an oven with a set temperature of 175°F. It is placed near a window with an
ambient temperature of 20°C. After 3minutes, the temperature of the pie is 150°F, determine how long it will
take the pie have a temperature of 100°F. Determine also the time when the temperature of the pie is half a
degree above the ambient temperature.

3. A hot pie is just taken out from an oven with a set temperature of 175°F. It is placed near a window with an
ambient temperature of 20°C. After 3minutes, the temperature of the pie is 150°F, determine how long it will
take the pie have a temperature of 100°F. Determine also the time when the temperature of the pie is half a
degree above the ambient temperature.
Transcribed Image Text:3. A hot pie is just taken out from an oven with a set temperature of 175°F. It is placed near a window with an ambient temperature of 20°C. After 3minutes, the temperature of the pie is 150°F, determine how long it will take the pie have a temperature of 100°F. Determine also the time when the temperature of the pie is half a degree above the ambient temperature.
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