Math Question: This is a situation that happened to me on December 9th... no seriously... a real situation. Here it is. I got some coffee and (yes I had a thermometer on me) and I measured it at 7:03 pm and it was 140 degrees. The waiter mentioned that it was boiling hot just a few minutes ago and that he hurried it to me. Is the waiter lying? Should I give him an extra big tip? Maybe... but my question is... at what time did the coffee stop boiling and so how long did he take to bring it to me? You MUST calculate k in the formula for Newton's Law of Cooling BEFORE you can figure out time, so this is a two-part problem. After you calculate k, THEN you can use it in the specific equation to calculate how long it took for him to bring me the coffee. Here are the specifics. Room Temperature = 72 degrees Coffee Temperature at 7:03 pm = 140 degrees Coffee Temperature at 7:10 pm = 90 degrees (yes I did wait 10 minutes to measure it so I could calculate k) Boiling point of water = 212 degrees You will need Newton's Law of Cooling. (Please answer the time it came out down to the hour, minute, and second.)

Asked By Logan On 12/10/2020 18:14