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Newton's law of cooling is sometimes called "Convection-cooling" is independent of the temperature difference between object and environment.

Newton's Law of Cooling Formula

T₂ = T₀ + (T₁ - T₀) * e^{(-k * Δt)}

where:

k: Constant to be found

Δt: Time difference of T2 and T1

T1: Initial Temperature

T2: Final Temperature

T₀: Constant Temperature of the surroundings

For example, when Time is 9, surrounding temperature is 20, initial temperature is 30, Core temperature is 32, then Temperature of the object at time t T(t) is 72.