depends on the pressure it is being delivered at......
25mm
2.79 gallons per second
25mm - 4mm thick150mm -4mm thick50mm - 4mm thick
1131.9 meters or about 4 times as fast per second
25mm = 0.000025km
3.85 Kg/m
Depends on the diameter of the pipe and the speed at which the water travels through it.
25mm = 3.973 kg/m
Approx 4.5 sq.metres at 25mm depth
The speed of sound through glass is 3962 metres per second, which is about 13000 feet per second. In normal air, sound travels at a speed of 343 meters per second and in water the speed is 1,433 metres per second. Sound travels at a speed of 5,000m per second or 11,160miles per hour through steel. The speed of sound is dependant upon the medium through which it is travelling and not on the loudness or pitch. For instance, sound travels much better through water than through air.
Flows through McNary Dam usually range from 50 to 350 KCFS (374,000- 2,618,00 gallons/sec) depending on the time of year.
Sound travels through water much better than it travels through air. In air, sound travels at about 330 m/sec (metres per second). In seawater it travels at about 1,490 m/s (better 1.49km/sec). Sound also travels much further through water than it does though air. This is the way humpback whales can communicate over very long distances with their singing.