What is the air pressure in the box

Reference no: EM13545166

An airtight box having a lid with an area of 13.9 in2 ( 89.68 cm2 ) is partially evacuated. If a force of 105.0 lb ( 467.06 N ) is required to pull the lid off the box and the outside atmospheric pressure is 14.3 lb/in2 ( 98594.55 Pa ), what is the air pressure in the box?

Reference no: EM13545166

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