Calculus Application Worksheet

A probe is put into a cup of boiling water for approximatley 35 seconds, then is put into a cup of ice water for another 35 seconds. 

The data is as follows

Time:      0          5         10     15          20        25       30         35        40      45      50     55      60    65      70

Temp:  69.8   124.8   141   146.5  148.3   148.5   148.7   149.1   89.3   62.3   47.9   43.9   42   40.9   40.2