At what speed will the velocity of a stream of water be equal to 20 cm of mercury column? (Taking, g =10 ms^(-2))

At what speed will the velocity of a stream of water be equal to 20 cm

1.	At what speed will the velocity of a stream of water be equal to 20 cm of mercury column? (Taking, g =10 ms^(-2))
Answer» SOLUTION :` V = sqrt( 2gh ) = sqrt(2xx 9.8 xx 0.4 )= 2.8 ms ^(-1)`