Need help in parts ABand C for part A neither PnoA nor PA f

% ) Problem Two containers have a substantial amount of the air evacuated (10 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 = 0.0125 m2. The air pressure in Denver is P0-81000 Pa. and in New Orleans is PN= 100750 Pa. Assume the lid is weightless. 2: NO Unsealed Otheexpertta.com Sealed 25% Part (a) Write an expression for the force Fo required to remove the container lid in New Orleans. 25% Part (b) Calculate the force FNO required to lift off the container lid in New Orleans in N. 25% Part (c) Calculate the force FO required to lift off the container lid in Denver in N. 25% Part (d) Is more force required to lift the lid in Denver (higher altitude, lower pressure) or New Orleans (lower altitude, higher lpressure)?

Solution

Pressure inside the containers =Pno / 2

= 100750 / 2

= 50375 Pa

a)

Fno = (Pno - Pno / 2)*A

Fno = (Pno / 2)*A

b)

Fno = (100750 / 2)*0.0125

= 629.6875 N

c)

Fd = (Pd - 50375)*A

= (81000 - 50375)*0.0125

= 382.8125 N