A tank of water is kept in a room where the air temperature is
MATHEMATICS · Subjective · AP · Calculus AB · Differential Equations · Differential Equations
Problem
A tank of water is kept in a room where the air temperature is 25∘C. The rate of change of the water temperature W(t) (in ∘C per minute) is proportional to the difference between the water temperature and the room temperature, and the water is cooling. Write a differential equation that models W(t) using a positive proportionality constant k.