A horizontal section of narrow pipe is filled with water whose flow speed is negligible
(v1 ≈0)
. The gauge pressure inside the pipe is P gauge =4.0 atm
. There is a pinhole-sized leak in the wall of the pipe, and water exits the hole with speed
v2
. What is
v2
​
? For the limit check, investigate what happens to
v2
​
if the gauge pressure inside the pipe drops to zero
(Pgauge →0)