Concept explainers
To estimate the initial temperature of aluminum beam.
Answer to Problem 30E
The initial temperature of aluminum beam is
Explanation of Solution
Given information:
An aluminum beam was brought from the outside cold into a machine shop where the temperature was held at
Concept used:
Newton’s Law of Cooling
If
Its solution , by the law of exponential change ,is
Where
Calculation:
Here ,
At
According to Newton’s Law of Cooling
At
Equation 1:
Equation 2:
Now dividing equation 1 by equation2
Now putting the value of
Therefore, the initial temperature of aluminum beam is
Chapter 7 Solutions
Calculus: Graphical, Numerical, Algebraic: Solutions Manual
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