In: Physics
A small metal bar, whose initial temperature was 20 ° C, is dropped into a tank of boiling water. Write the differential equation (with its initial condition) that describes the behavior of this specific phenomenon, as well as its solution function T (t). Both must already have the numerical values of all the parameters substituted. How long will it take the bar to reach 90 ° C if its temperature is known to rise 2 ° C in 1 second? How long will it take to reach 98 ° C? How much is the temperature worth for very long times?