Problem 3. At 1PM, a thermometer reading 70°F is taken outside where the air temperature is -10°F. At 1:02 PM, the reading is 26°F. At 1:05 PM, the thermometer is taken back indoors where the air temperature is at 70°F. What is the thermometer reading at 1:05 PM?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question

Solve the following applications of Differential Equations.

Problem 3. At 1PM, a thermometer reading 70°F
is taken outside where the air temperature is
-10°F. At 1:02 PM, the reading is 26°F. At 1:05
PM, the thermometer is taken back indoors
where the air temperature is at 70°F. What is the
thermometer reading at 1:05 PM?
Transcribed Image Text:Problem 3. At 1PM, a thermometer reading 70°F is taken outside where the air temperature is -10°F. At 1:02 PM, the reading is 26°F. At 1:05 PM, the thermometer is taken back indoors where the air temperature is at 70°F. What is the thermometer reading at 1:05 PM?
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