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 increased 2° C in 1 second? What will be its temperature after 3 minutes?

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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 increased 2° C in
1 second?
What will be its temperature after 3 minutes?
Transcribed Image Text: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 increased 2° C in 1 second? What will be its temperature after 3 minutes?
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