General Physics conceptual questions. please help.?

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is it best for airplane to take off against the wind or with the wind? explain

it is a common observation that smoke more rapidly through a chimney when there is wind blowing outside. explain.

what is the downward force exerted by the atmoshphere on a football field, whose dimenstion are 360 ft by 160 ft.

please help me out with these problems. Thank you so much.
 
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