A small metal bar, whose initial temperature was 20° C, is large container of boiling water. How long will it take the ba if it is known that its temperature increases 2° in 1 second?
A small metal bar, whose initial temperature was 20° C, is large container of boiling water. How long will it take the ba if it is known that its temperature increases 2° in 1 second?
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 20.7OQ: The specific heat of substance A is greater than that of substance B. Both A and B are at the same...
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![3. A small metal bar, whose initial temperature was 20° C, is dropped into a
large container of boiling water. How long will it take the bar to reach 90° C
if it is known that its temperature increases 2° in 1 second? How long will it
take the bar to reach 98° C? [Hint: Use Newton's Law of Cooling.]
100
1.
the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb08612aa-fb54-4018-9d80-268b437bd1fb%2Fb933c1eb-d732-45f5-af3c-288e12d55835%2Fukyuqg5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A small metal bar, whose initial temperature was 20° C, is dropped into a
large container of boiling water. How long will it take the bar to reach 90° C
if it is known that its temperature increases 2° in 1 second? How long will it
take the bar to reach 98° C? [Hint: Use Newton's Law of Cooling.]
100
1.
the
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