At 10 A.M. a woman took a cup of hot instant coffee from her microwave oven and placed it on a nearby kitchen counter to cool. At this instant the temperature of the coffee was 180°F, and 10 minutes later it was 160°F. Assume the constant temperature of the kitchen was 70°F. What was the temperature of the coffee at 10:15 A.M.? The woman of this problem likes to drink coffee when its temperature is between 130°F and 140°F. Between what times should she have drunk the coffee of this problem?
At 10 A.M. a woman took a cup of hot instant coffee from her microwave oven and placed it on a nearby kitchen counter to cool. At this instant the temperature of the coffee was 180°F, and 10 minutes later it was 160°F. Assume the constant temperature of the kitchen was 70°F. What was the temperature of the coffee at 10:15 A.M.? The woman of this problem likes to drink coffee when its temperature is between 130°F and 140°F. Between what times should she have drunk the coffee of this problem?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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At 10 A.M. a woman took a cup of hot instant coffee from her microwave oven and placed it on a nearby kitchen counter to cool. At this instant the temperature of the coffee was 180°F, and 10 minutes later it was 160°F. Assume the constant temperature of the kitchen was 70°F.
- What was the temperature of the coffee at 10:15 A.M.?
- The woman of this problem likes to drink coffee when its temperature is between 130°F and 140°F. Between what times should she have drunk the coffee of this problem?
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