Question

An airtight box, having a lid of area 80 cm², is
partially evacuated (i.e., has low pressure than
outside atmosphere). Atmospheric pressure is
1.01 x 105 Pa. A force nf 600 N is required to pull
the lid off the box. The pressure in the box was
(1) 2.60 x 104 Pa (2) 6.35 x 104 Pa
(3) 7.50 x 104 Pa (4) 1.38 x 105 Pa​

Answer 1

Answer:

2)

Explanation:

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