Kepler's Task. 1  A portrait of Johannes Kepler by an unknown artist. 2  Kepler's Third Law: The Hohmann Transfer Orbit. 3  Circular and Elliptical Orbits Having the Same Period and Focus. 4  Circular and Elliptical Orbits Having the Same Period and Focus. 5  Illustrating Kepler's 2nd law: Segments AB and CD take equal times to cover.
Generally, it takes between seven and 10 hours for a dog to digest food, but the many variables mean that only your vet can tell you how long it should be taking.
Varying Factors. Your dog's digestion rate isn't affected by his size as much as by other factors, including the type of food you give him, the amount of exercise he gets, the amount of water he drinks and more. For example, an average dog -- big or small -- takes between four and six hours to digest canned wet food.