dT/dt = -k(T – Ta) where T = the temperature of the body (°C), t= time (min), k= the proportionality constant (per minute), and Ta = the ambient temperature (°C). Suppose that a cup of coffee originally has a temperature of 68°C. Use Euler's method to compute the temperature from t= 0 to 10 min using a step size of 1 min if Ta = 21°C and k = 0.1/min.

dT/dt = -k(T – Ta) where T = the temperature of the body (°C), t= time (min), k= the proportionality constant (per minute), and Ta = the ambient temperature (°C). Suppose that a cup of coffee originally has a temperature of 68°C. Use Euler's method to compute the temperature from t= 0 to 10 min using a step size of 1 min if Ta = 21°C and k = 0.1/min.

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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Question

Euler method (Numerical Analysis)

Newton’s law of cooling says that the temperature of a body changes at a rate proportional to the difference between its temperature and that of the surrounding medium

Table
Graph

dT/dt = -k(T – Ta)
where T = the temperature of the body (°C),
t= time (min),
k= the proportionality constant (per minute), and
Ta = the ambient temperature (°C).
Suppose that a cup of coffee originally has a temperature of 68°C. Use Euler's method to compute the temperature from t= 0 to
10 min using a step size of 1 min if Ta = 21°C and k= 0.1/min.

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