Force = [gravitational constant x masses (m1 x m2)] / (radius)2

E = energy = m = mass x c2 = speed of light in vacuum

T(t) = Ts + (T0 - Ts ) e(-kt) T(t) = temperature of an object at a certain time (Kelvin, K) t = time (s) Ts = temperature of the surroundings (Kelvin, K) T0 = starting temperature of the object (Kelvin, K) k = a cooling constant, specific to the object (1/s)