Answer:
dY/dt = k(Y - Ys).
Step-by-step explanation:
Okay, this question based on the law known as the Newton's law of cooling. According to Newton's law of cooling, when an object is placed into a specific or particular environment, the object's temperature will definitely be lower than the temperature of the surrounding or the environment.
So, we are given that the temperature of the object = 38 degree F = Y(o) of the object and the temperature of the environment = 68 degree F = Ys
Hence, dY/dt = k(Y - Ys).
dY/ (Y - Ys) =kdt.