The force on the inside of a cork in a champagne bottle is 10 ​pound-force ​[lb Subscript f​]. If the cork has a diameter of 0.5 inches​ [in], what is the pressure inside the bottle in units of feet of water​ [ft Upper H 2 Upper O​]?

Answer :

Answer:

117.48 is the pressure inside the bottle in units of feet of water.

Explanation:

Diameter of the cork = d = 0.5 inch

Radius of the cork = 0.5 d  = 0.25 inch  = [tex]0.25\times 0.0254m[/tex]

1 inch =  0.0254 m

Area of the cork :

[tex]A=\pi r^2=3.14\times (0.25\times 0.0254m)^2=0.00012668 m^2[/tex]

Force on the cork , F= 10 pound-force = 44.4822 N

1 Pound Force = 4.44822 Newton

Pressure on the cork :

[tex]P=\frac{F}{A}[/tex]

[tex]=\frac{44.4822 N}{0.00012668 m^2}=351,146.98 Pa[/tex]

1 Pa = 0.00033455256555148 feet water

[tex]351,146.98 Pa=351,146.98\times 0.00033455[/tex] feet water

Pressure = 117.48 feet of water

117.48 is the pressure inside the bottle in units of feet of water.

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