If I have 2,000,000 lbs of water, being expelled through a .25 inch hole, within 5 seconds. how fast is the water going and what is the psi. (This is hypothetical in a fantastical setting.)

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

The ozone hole appears in antarctica during