Answer:
P = 75.1 PSI
Explanation:
Conceptual analysis
P = ρ×g×h Formula (1)
ρ: fluid density in lbm/ft³
g: acceleration due to gravity in ft/s²
h: fluid height in ft
Known information
We have the following data:
ρ = 62.4 lbm/ft³
g = 32 ft/s²
h = 65 inches of water = 65/12 ft of water
[tex]1 poundal = 1 \frac{lbm*ft}{s^2}[/tex]
1 ft = 12 in
Problem development
We replace in formula (1):
[tex]P = 62.4 \frac{lbm}{ft} * 32 \frac{ft}{s^2} * \frac{65}{12} ft = 10816 \frac{poundal}{ft^2}[/tex]
[tex]P = 10816 poundal*\frac{1}{ft^2} = 10816 poundal * \frac{1}{144in^2} = 75.1 \frac{poundal}{in^2} = 75.1 PSI[/tex]