Purchase Solution

Newton's Law of Cooling : Average Temperature

Not what you're looking for?

Ask Custom Question

If a cup of coffee has temperature 95 degrees Celsius in a room where the temperature is 20 degrees Celsius, then according to Newton's Law of Cooling, the temperature of the coffee after t minutes is T(t)=20+75e^(-t/50). What is the average temperature of the coffee during the first half hour?

Purchase this Solution

Solution Summary

Newton's Law of Cooling is applied to finding an average temperature. The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.

Solution Preview

The final temperature of the coffee is 20 + 75 exp(-30/50) = 61.161 C
The rate of cooling is dT(t)/dt= -75/50exp(-t/50) The change in temperature of the ...

Purchase this Solution


Free BrainMass Quizzes
Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

Probability Quiz

Some questions on probability

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.