For Questions 3 and 4: A cup of water was heated to a temperature of 90°. It was placed in a refrigerator that had a temperature of 11°C. The water cooled to a temperature of 17°C in 30 minutes. Let the following variables represent the relevant quantities. L = Temperature of the liquid S= Temperature of the surroundings t = Time B = Initial temperature of the liquid (Temperature at t = 0 k = Cooling constant - Using the Equation Solver, find the value of k in the equation L = (B - S)e -k ·t + S. Remember to set the equation equal to zero and then enter it into the Solver.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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**Text Explanation:**

For Questions 3 and 4: A cup of water was heated to a temperature of 90°C. It was placed in a refrigerator that had a temperature of 11°C. The water cooled to a temperature of 17°C in 30 minutes. Let the following variables represent the relevant quantities:

- \( L \) = Temperature of the liquid
- \( S \) = Temperature of the surroundings
- \( t \) = Time
- \( B \) = Initial temperature of the liquid (Temperature at \( t = 0 \))
- \( k \) = Cooling constant

3. Using the Equation Solver, find the value of \( k \) in the equation \( L = (B - S) e^{-k \cdot t} + S \). Remember to set the equation equal to zero and then enter it into the Solver.
Transcribed Image Text:**Text Explanation:** For Questions 3 and 4: A cup of water was heated to a temperature of 90°C. It was placed in a refrigerator that had a temperature of 11°C. The water cooled to a temperature of 17°C in 30 minutes. Let the following variables represent the relevant quantities: - \( L \) = Temperature of the liquid - \( S \) = Temperature of the surroundings - \( t \) = Time - \( B \) = Initial temperature of the liquid (Temperature at \( t = 0 \)) - \( k \) = Cooling constant 3. Using the Equation Solver, find the value of \( k \) in the equation \( L = (B - S) e^{-k \cdot t} + S \). Remember to set the equation equal to zero and then enter it into the Solver.
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