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.
Short answer: Anywhere from a couple of days to 6 weeks. Long answer: First off, regardless of whether your dog has food allergies or is just sick â If your dog is experiencing diarrhea or vomiting for more than 24 hours, get him to the vet to make sure he does not get dehydrated.