Question: A 2 0 - cmcm - diameter circular cover is placed over a 1 0 - cmcm - diameter hole that leads into an evacuated

20 -

cmcm

-

diameter circular cover is placed over a

10 -

cmcm

-

diameter hole that leads into an evacuated chamber. The pressure in the chamber is

24

kPakPa

.

Part A

How much force is required to pull the cover off?

Express your answer with the appropriate units.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

=

nothingnothing

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