USE DIFFERENTIAL EQUATION You planned to make coffee so you boiled water with an initial temperature of 20°C, You added the coffee mix and stirred it well; it became 93°C at exactly 11:53 pm. Due to your tiring activities, you left your coffee on your table, forgot to drink it, and fell into a deep sleep at exactly 11:56 pm. Five minutes after you fell asleep, your coffee cooled down to 69°C. At what time was your coffee measured at 25°C? What is the temperature (in °F) of your coffee when you wake up at 12:35 am? The room temperature is 21°C.
USE DIFFERENTIAL EQUATION You planned to make coffee so you boiled water with an initial temperature of 20°C, You added the coffee mix and stirred it well; it became 93°C at exactly 11:53 pm. Due to your tiring activities, you left your coffee on your table, forgot to drink it, and fell into a deep sleep at exactly 11:56 pm. Five minutes after you fell asleep, your coffee cooled down to 69°C. At what time was your coffee measured at 25°C? What is the temperature (in °F) of your coffee when you wake up at 12:35 am? The room temperature is 21°C.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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USE DIFFERENTIAL EQUATION
You planned to make coffee so you boiled water with an initial temperature of 20°C, You added the coffee mix and stirred it well; it became 93°C at exactly 11:53 pm. Due to your tiring activities, you left your coffee on your table, forgot to drink it, and fell into a deep sleep at exactly 11:56 pm. Five minutes after you fell asleep, your coffee cooled down to 69°C. At what time was your coffee measured at 25°C? What is the temperature (in °F) of your coffee when you wake up at 12:35 am? The room temperature is 21°C.
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