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1. A small metal bar whose initial temperature was 20C, is dropped into a large container of boiling water. How long will it take

1. A small metal bar whose initial temperature was 20C, is dropped into a large container of boiling water. How long will it take to reach 90C if it is known that its' temperature increases 2C in 1 second? 2. How long will it take the bar to reach 98C in Problem 1?

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