A 3 m high large tank is initially filled completely with water. The tank water surface is open to the atmosphere, and a sharp edged 10 cm diameter orifice at the bottom drains to the atmosphere through a horizontal 80 m long pipe. If the total irreversible head loss of the system is determined to be 1.5 m, determine the velocity of the water as it exits the pipe. Take the density of water as 1000 kg/m3.

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.

Wish i knew this to !

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