(7%) Problem 3: Two containers have a substantial amount of the air evacuated ou

Question

(7%) Problem 3: Two containers have a substantial amount of the air evacuated out of them so that the pressure inside is half the pressure at sea level. One container is in Denver at an altitude of about 6,000 ft and the other is in New Orleans (at sea level). The surface area of the container lid is A-00105 m2. The air pressure in Denver is PDF 80500 Pa. and in New Orleans is PNO = 100500 Pa. Assume the lid is weightless. NO Sealed Unsealed Ctheexpertta.con Write an expression for the force Fvo required to remove the container lid in New Orleans. 25% Part (a) Grade Summary Deductions 8% FNO= 92%

Explanation / Answer

Pressure inside the container is

PC=PNO/2

Force required to open the lid of container in new orleans is given by

FNO=[PNO-PC]A

FNO=[PNO-(PNO/2)]*A

FNO=(1/2)PNO A

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