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Mathematics, 18.07.2019 03:40 ImmortalEnigmaYT
Newton’s law of cooling states that for a cooling substance with initial temperature t0 , the temperature t(t) after t minutes can be modeled by the equation t(t)=ts+(t0−ts)e−kt , where ts is the surrounding temperature and k is the substance’s cooling rate. a liquid substance is heated to 80°c . upon being removed from the heat, it cools to 60°c in 25 min. what is the substance’s cooling rate when the surrounding air temperature is 50°c ? round the answer to four decimal places. 0.0439 0.0532 0.0613 0.0872
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