An Airtight Box, Having a Lid of Area 80

question 27

Multiple Choice

An airtight box, having a lid of area 80.0 cm², is partially evacuated.Atmospheric pressure is 1.01 x 10⁵ Pa.A force of 108 lb is required to pull the lid off the box.The pressure in the box was:

• A)1.35 x 10⁴ Pa
• B)2.60 x 10⁴ Pa
• C)4.10 x 10⁴ Pa
• D)8.75 x 10⁴ Pa
• E)1.36 x10⁵ Pa

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Definitions:

Scientific Experiments

Controlled procedures carried out to investigate relationships between variables and observe the effects of manipulation of one variable on another.

Pain

An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.

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The study of mind and behavior, encompassing all aspects of conscious and unconscious experience as well as thought.

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A person who has an established friendship with two or more individuals, serving as a social connection between them.