If a cup of coffee has temperature 93°C in a room where the ambient air temperature is 20°C, then, according to Newton's Law of Cooling, the temperature of the coffee after t minutes is T(t) = 20 +73e-t/55 What is the average temperature of the coffee during the first 26 minutes? average temp = . °C

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**Newton's Law of Cooling: Average Temperature Calculation**

**Problem Statement:**
If a cup of coffee has a temperature of 93°C in a room where the ambient air temperature is 20°C, then, according to Newton's Law of Cooling, the temperature of the coffee after \( t \) minutes is given by:

\[ T(t) = 20 + 73e^{-\frac{t}{55}} \]

**Question:**
What is the average temperature of the coffee during the first 26 minutes?

**Solution:**
To find the average temperature, you will need to calculate the definite integral of the temperature function \( T(t) \) over the interval from \( t = 0 \) to \( t = 26 \) and then divide by the length of the interval (26 minutes).

**Formula:**
\[ \text{Average Temperature} = \frac{1}{26} \int_{0}^{26} \left( 20 + 73e^{-\frac{t}{55}} \right) dt \]

Please input the average temperature calculation in the box provided:

\[ \text{average temp} = \_\_\_\_ \text{°C} \]

**Graphical Representation:**
While not provided here, a possible graph to accompany this explanation would illustrate the exponential decay curve of the coffee's temperature over time, starting at 93°C and approaching 20°C as time increases. This visualization helps to understand how the temperature changes dynamically.

To calculate the average, you would use integral calculus techniques, which provide a precise way to determine the mean value of such non-linear functions over specified intervals.
Transcribed Image Text:**Newton's Law of Cooling: Average Temperature Calculation** **Problem Statement:** If a cup of coffee has a temperature of 93°C in a room where the ambient air temperature is 20°C, then, according to Newton's Law of Cooling, the temperature of the coffee after \( t \) minutes is given by: \[ T(t) = 20 + 73e^{-\frac{t}{55}} \] **Question:** What is the average temperature of the coffee during the first 26 minutes? **Solution:** To find the average temperature, you will need to calculate the definite integral of the temperature function \( T(t) \) over the interval from \( t = 0 \) to \( t = 26 \) and then divide by the length of the interval (26 minutes). **Formula:** \[ \text{Average Temperature} = \frac{1}{26} \int_{0}^{26} \left( 20 + 73e^{-\frac{t}{55}} \right) dt \] Please input the average temperature calculation in the box provided: \[ \text{average temp} = \_\_\_\_ \text{°C} \] **Graphical Representation:** While not provided here, a possible graph to accompany this explanation would illustrate the exponential decay curve of the coffee's temperature over time, starting at 93°C and approaching 20°C as time increases. This visualization helps to understand how the temperature changes dynamically. To calculate the average, you would use integral calculus techniques, which provide a precise way to determine the mean value of such non-linear functions over specified intervals.
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