1.

A cup of tea cools from 80∘C to 60∘C in 1 min. The ambient temperature is 30∘C. How much time will it take to cool from 60∘C to 50∘C?

Answer»

A cup of tea cools from 80C to 60C in 1 min. The ambient temperature is 30C. How much time will it take to cool from 60C to 50C?



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