May 2021 1 92 Report
If the force required to remove the lid is 480 N and the atmospheric pressure is 1.0 × 10^5 Pa?

what is the internal air pressure?

attempt: I used the formula p=F/A and got 6.23 Pa. is this correct?

Update:

A partially evacuated airtight container has a tight-fitting lid of surface area 77m^2 and negligible mass. If the force required to remove the lid is 480N and the atmospheric pressure is 1.0 x 10^5Pa, what is the internal air pressure?

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