A Foucault pendulum' is a pendulum which can be used to demonstrate the Earth's rotation. Over time the pendulum traces a path which will move in a circle due to the Earth' s rotation. It is known that the period T of the pendulum that is the time that it takes to complete a full rotation only depends on the latitude at which the pendulum is placed, and can be expressed by - - where measured in degrees.< 23.93< T (0)= sine hours Write a single-sentence interpretation for the equation< dT de 0=45.50< =-0.57 hours/degree< that refers to Montreal, located at latitude 45.50° N.<