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**1. Homework Statement**

A vertical water pipe extends from the bottom to the top of the World Trade Center in the Big Apple (New York City), a distance of about 420 m. Calculate the difference in pressure in atm between the bottom and the top of the water pipe.

**2. Homework Equations**

p(y) = p - [tex]\rho[/tex]gy

**3. The Attempt at a Solution**

[tex]\rho[/tex]gy = (1 kg/[tex]m^{3}[/tex]) (9.81m/[tex]s^{2}[/tex]) (420m)

[tex]\rho[/tex]gy = 4120.2 Pa

4120.2 Pa (1 atm / 101300 Pa) = .0407 atm

The answer above was wrong. Thanks for the help!

**1. Homework Statement**

**2. Homework Equations**

**3. The Attempt at a Solution**