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OpenStudy (anonymous):
You place a cup of 210oF coffee on a table in a room that is 68oF, and 10 minutes later, it is 200oF. Approximately how long will it be before the coffee is 180oF? Use Newton's law of cooling:
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OpenStudy (noelgreco):
This should help. I get 32.5 minutes. That's some well-insulated cup!
OpenStudy (noelgreco):
http://www.ugrad.math.ubc.ca/coursedoc/math100/notes/diffeqs/cool.html The link is what should help.
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