iheartfood
Air pressure may be represented as a function of height above the surface of the Earth as shown below.
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iheartfood
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iheartfood
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Answer choices A,B,C,D from top to bottom :)
jim_thompson5910
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P(h) is the pressure at some height h
It's given that the pressure at this unknown height is 75% of the pressure at sea level
What is the pressure at sea level?
iheartfood
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umm p(.75) ??
jim_thompson5910
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p(0.75) means that you're finding the pressure when h = 0.75
iheartfood
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so thats not it??
iheartfood
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it is?
iheartfood
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or it isn't?? :/ if so, what do i do next?
jim_thompson5910
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it says right in there that the pressure at sea level is P0
iheartfood
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ohhh i see now.. kk what do i do now?
iheartfood
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do i plug in or something?
jim_thompson5910
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75% of this pressure at sea level is what
iheartfood
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.75Po ?
jim_thompson5910
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so replace P(h) with 0.75P0
jim_thompson5910
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because at this unknown height, the pressure is 75% of the sea level pressure
iheartfood
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oh i see, so that leaves me with B as my answer right?? because of that and we do process of elimination it right??
iheartfood
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awesome! thanks!! :)
iheartfood
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awesome! thanks!! :)