At 9:00am a thermometer reading 70° F is taken outdoors where the temperature is 15° F. At 9:05am, the thermometer reading is 45° F. At 9:10am the thermometer is taken back indoors where the temperature is fixed at 70°F. A. Find the value of k in four decimal places. B. Find the reading at 9:20am. C. How much time is needed to make the reading of the thermometer 69.5°F since it was taken back inside?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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At 9:00am a thermometer reading 70° F is taken outdoors where the temperature is 15° F. At 9:05am, the thermometer reading is 45° F. At 9:10am the thermometer is taken back indoors where the temperature is fixed at 70°F. A. Find the value of k in four decimal places. B. Find the reading at 9:20am. C. How much time is needed to make the reading of the thermometer 69.5°F since it was taken back inside?
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