While a roofer is working on a roof that slants at 36° above the horizontal, he accidentally nudges his 85.0-n toolbox, causing it to start sliding downward from rest. if it starts 4.25 m from the lower edge of the roof, how fast will the toolbox be mov- ing just as it reaches the edge of the roof if the kinetic friction force on it is 22.0 n?

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.