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.
Whatever remains after the dog's small intestine has done its job, is then processed in a few hours by the large intestine, and moved through the colon. In all, the entire process, from the time a dog bites into his food to the time waste is produced, can take about 10 hours to a couple of days.