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A thermometer was taken from a freezer a...

A thermometer was taken from a freezer and placed in a boilling water . It took 22 seconds for the thermometer to raise from `-10^(@)C to 100 ^(@)C`. Show that the rate of changes of temperature at some time t is `5 ^(@) C` per second

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The correct Answer is:
`=(110)/(22)=5^(@)C` per second
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