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(Solved): If a cup of colfee has temperiture \( 95^{\circ} \mathrm{C} \) in a room where the temperature is \ ...
If a cup of colfee has temperiture \( 95^{\circ} \mathrm{C} \) in a room where the temperature is \( 20^{\circ} \mathrm{C} \), then, accordang to Newton's law of Cooling, the temperature of the c?otfee after tominutes is \[ T(t)=20+75 e^{-t / 30} \] What is the average temperature (in degrees Celsias) of the coffee during the first half hour? Average temperature = degrtees Celuas