Part C Check your graph prediction. In Frame 4, click the view icon and select Plot View. You may click on any graph point to see the t and x values
displayed. (Clicking a graph point also jumps the video to the frame for that data and highlights data for that point in any data tables.) How
does the graph compare with your prediction?
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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.

The answer is frictional force