Most often, we move items from one environment to another. A Ph.D researcher found that in doing so, its temperature T changes at a rate given by , dT kt kCe dt = where t is the time in the new environment (in hours), C is the temperature difference (old - new) between the two environments, and k is a constant. If the temperature of the object (and the old environment) is 70o F and 10 , o C F = − what function describes the temperature T of the object t hours after it is moved?