Which statements describe velocity and acceleration? check all that apply. velocity equals displacement divided by time. all velocities are “instantaneous” and occur only at a point in time. velocity and acceleration are calculated using the same variables. acceleration equals change in velocity divided by time. acceleration is always constant; it cannot vary. average velocity can be found by using several velocities and their total time.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.