The radius of a well is 7m. Water in it is at a depth of 20m and depth of water column is 10m. Work done in pumping out water completely from the well is (g=10ms^(-2))

The radius of a well is 7m. Water in it is at a depth of 20m and depth

1.	The radius of a well is 7m. Water in it is at a depth of 20m and depth of water column is 10m. Work done in pumping out water completely from the well is (g=10ms^(-2))
Answer» `38.5 MJ` `38.5 KJ` `46.2 MJ` `385 MJ` ANSWER :D