Physics
General
Easy

Question

A liquid takes 5 minute to cool from 80 to the power of 0 C  to  50 to the power of 0 C. The temperature of the surrounding is 20 to the power of 0 C. What is the time it will take to cool from  60 to the power of 0 C space t o space 30 to the power of 0 c  ?

  1. 9 min
  2. 5 min
  3. 12 min
  4. 6 min

The correct answer is: 9 min

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