A large tank is filled waith water (density `= 10^(3) kg//m^(3)`). A small hole is made at a depth 10 m below water surface. The range of water issuing out of the hole is R on ground. Approximately what extra pressure must be applied on the water surface so that the range becomes 2R
(take `1 atm = 10^(5) Pa` and `g = 10 m//s^(2)`)
