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An airtight box has a removable lid of area 1.43E-2 m2 and negligible weight. The box...

An airtight box has a removable lid of area 1.43E-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 8.41E+4 Pa. The inside of the box is completely evacuated. What is the magnitude of the force required to pull the lid off the box

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2 P=8.41 x 10 N/m Area of lid= A=1.43x10-3m2 F F=PXA А = 8.41x104x1.43x10-3=120.3N ..P-

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