Physics

Thermal Expansion Solutions

Newton's Law of Cooling states that the rate of change of the temperature of an object, T, is proportional to the
dT
difference of T and the temperature of the region, Tror = k(T-TR). An object with core temperature of 1200°F is
dt
removed from a fire and placed in a region with a constant temperature of 80°F. After 1 hour, its core temperature is
830°F. What is the object's core temperature 4 hours after it is taken off the fire? (1 point)
370.4010°F
305.2214°F
225.2214°F
145.4010°F