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.
How Long Does Food Digestion Take? The time it takes for food to digest can vary a bit from person to person and between males and females. Studies have shown that the entire process takes about an average of 50 hours for healthy people, but can vary between 24 and 72, based on a number of factors.