Newtons problem - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: Homework (https://python-forum.io/forum-9.html) +--- Thread: Newtons problem (/thread-2300.html) |
Newtons problem - Miraclefruit - Mar-06-2017 Newton’s Law of Cooling states that when a hot liquid is placed in a cool room, each minute the decrease in the temperature is approximately proportional to the difference between the liquid’s temperature and the room’s temperature. That is, there is a constant k such that each minute the temperature loss is k # (liquids temperature - rooms temperature). Suppose a cup of 212°F coffee is placed in a 70°F room and that k = .079. Determine the number of minutes required for the coffee to cool to below 150°F. k = 0.79 room = 70 cup = 212 tempLoss = 0 minutes = 0 while (cup > 150): tempLoss = k*(cup - room) cup -= tempLoss minutes += 1 print("The coffee will cool to below 150 degrees in 7", minutes, "minutes")This keeps giving me 1 minute RE: Newtons problem - micseydel - Mar-06-2017 You're off by a 0 in your k constant. RE: Newtons problem - Miraclefruit - Mar-06-2017 (Mar-06-2017, 02:16 AM)micseydel Wrote: You're off by a 0 in your k constant. wow i can't believe that was the problem haha. thanks |