Hi there!
Recall the equation for momentum:

p = momentum (kgm/s)
m = mass (kg)
v = velocity (m/s)
We can plug in the given values to solve for velocity:

Answer:
PE=mgh
KE=<u>1</u> mv²
2
hope its helpful for u ..
Atsmopheric pressure is the pressure that is on something inside and atmosphere. measured in either mmhg or milimeters of Mercury, or atmospheres abreviated atm.
The answer is c nitrogen thx me later