The Coffee Cup Heat Loss Mystery · AI Generator #GEN-ACFAC8D8

Physics · thermodynamics

Problem

A barista notices that identical coffee cups cool at different rates depending on their initial temperature. She conducts an experiment with two identical ceramic cups, each containing 200  ml200\;\text{ml} of coffee in a room at Troom=20°CT_{room} = 20°\text{C}. The first cup starts at T1=80°CT_1 = 80°\text{C} and the second at T2=60°CT_2 = 60°\text{C}. After exactly 5  minutes5\;\text{minutes}, she measures their temperatures and finds that the first cup has cooled by ΔT1=15°C\Delta T_1 = 15°\text{C} while the second cup has cooled by only ΔT2=8°C\Delta T_2 = 8°\text{C}. Assuming Newton's law of cooling applies, what will be the temperature of the first cup after an additional 5  minutes5\;\text{minutes} (i.e., 10  minutes10\;\text{minutes} total)?

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