14. A Bar Of Metal Is Cooling From 1000degC To...

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14. A bar of metal is cooling from 1000degC to roomtemperature, 20degC. The temperature, H, of the bar tminutes after it starts cooling is given, in deg C, by H=20+980e-0.1t a. Find the temperature of the bar at the ened of onehour. b. Find the average value of the temperature over the firsthour. c. Is your answer to part b greater or smaller than theaverage of the temperatures at the beginning and the end of thehour? Explain this in terms of the concavity of the graph ofH.

 

Answer No.1

Anonymous

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Represents the total cost of heating during the 90 days It's the average daily cost of heating during the period( 90 days ) from January 1,2001 to March 31, 2001 hope this helps

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