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1 A body cools from 80 C to 70 C in 12 minutes and from...

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1 A body cools from 80 C to 70 C in 12 minutes and from 70 C to 60 C in time t The value of t is temperature of the surrounding is 40 C 1 13 8 minute 2 16 8 minute 3 18 8 minute 4 20 8 minute

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