A building has a flat roof of area 42.0 m2. Wind blows over the top of the roof at 14.8 m/s. The air inside the building is stationary. What is the difference in pressure (P1 - P2) between the two sides of the roof? DENSITY OF AIR IS 1.29 in this question and answer in PASCALS

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.

Independent variable is something that is changed in a experiment. 

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