Filter the results Item type Select All/None Stats File Collection Quiz Question Image Movie Folder Page New items since Yesterday Last week Last month Ever Search results Subscribe to an always-updated RSS feed. 1946 items matching your search terms. Sort by relevance date (newest first) alphabetically If an astronaut were to orbit at the height of 4000 miles above the surface Located in Physics / Gravity / Weightlessness Weightlessness Heavy and light objects fall at the same rate !! Located in Physics / Gravity The cannonball never reaches the ground Located in Physics / Gravity / Earth Satellites What keeps such a cannonball from flying into space is the force of gravity Located in Physics / Gravity / Earth Satellites Earth Satellites Newton argued that if a cannon could be placed on a hill high enough to be outside the earth's atmosphere, and if the cannon could be made powerful enough, a ... Located in Physics / Gravity Do planets at greater distances from the sun have longer or shorter periods of revolution? Located in Physics / Gravity / Kepler's Third Law Define the period of a motion Located in Physics / Gravity / Kepler's Third Law Newton's laws explain Kepler's third law Located in Physics / Gravity / Kepler's Third Law The following is Kepler's third law as a formula Located in Physics / Gravity / Kepler's Third Law The time for one cycle of the sun is called a planet's ______ of revolution Located in Physics / Gravity / Kepler's Third Law Previous 10 items 1 ... 3 4 5 6 7 8 9 ... 195 Next 10 items