Average cost per inpatient day across 50 states. Written by Emily Rappleye (Twitter | Google+) | May 19, 2015. Here are average costs per inpatient day in 2013, organized by hospital ownership type, in all 50 states and the District of Columbia, according to the latest statistics from Kaiser State Health Facts.verage cost per inpatient day across 50 states. Written by Emily Rappleye (Twitter | Google+) | May 19, 2015. Here are average costs per inpatient day in 2013, organized by hospital ownership type, in all 50 states and the District of Columbia, according to the latest statistics from Kaiser State Health Facts.
The three laws of motion were first compiled by Isaac Newton in his PhilosophiÃ¦ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687. Newton used them to explain and investigate the motion of many physical objects and systems. For example, in the third volume of the text, Newton showed that these laws of motion, combined with his law of universal gravitation, explained Kepler's laws of planetary motion.
Johannes Kepler published his first two laws about planetary motion in 1609, having found them by analyzing the astronomical observations of Tycho Brahe. Kepler's third law was published in 1619. Kepler in 1621 and Godefroy Wendelin in 1643 noted that Kepler's third law applies to the four brightest moons of Jupiter.he eccentricities of the orbits of those planets known to Copernicus and Kepler are small, so the foregoing rules give good approximations of planetary motion; but Kepler's laws fit the observations better than Copernicus's.