3. A metal object at 120°F is set on an insulating pad to cool. The temperature falls from 120°F to 100°F in 12 minutes. The surroundings are 65°F. Find the time required for that object to continue to cool from 98°F to 80°F. Assume negligible conduction and radiation losses in both cases.
3. A metal object at 120°F is set on an insulating pad to cool. The temperature falls from 120°F to 100°F in 12 minutes. The surroundings are 65°F. Find the time required for that object to continue to cool from 98°F to 80°F. Assume negligible conduction and radiation losses in both cases.
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![3. A metal object at 120°F is set on an insulating pad to cool. The temperature falls from 120°F to
100°F in 12 minutes. The surroundings are 65°F. Find the time required for that object to continue
to cool from 98°F to 80°F. Assume negligible conduction and radiation losses in both cases.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F95cd40be-76ec-42cd-a9bb-9b4da2228e41%2F11d94ee4-1b9f-4a67-91ad-3cfca259115a%2Fbzjfhya_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A metal object at 120°F is set on an insulating pad to cool. The temperature falls from 120°F to
100°F in 12 minutes. The surroundings are 65°F. Find the time required for that object to continue
to cool from 98°F to 80°F. Assume negligible conduction and radiation losses in both cases.
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