# How high would the atmosphere extend if it were of uniform density throughout, equal

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#1
How high would the atmosphere extend if it were of uniform density throughout, equal to half the present density at sea level?

Is this question saying that the pressure at any height would be the same and equal to atmospheric pressure ? How do I solve this ?
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1 year ago
#2
(Original post by Leah.J)
How high would the atmosphere extend if it were of uniform density throughout, equal to half the present density at sea level?

Is this question saying that the pressure at any height would be the same and equal to atmospheric pressure ? How do I solve this ?
No, it's not saying that the pressure would be the same at any height, either in the standard atmosphere or in the model they're using.

As your altitude increases from sea level the atmosphere becomes less dense, and pressure becomes less. The pressure is the weight of atmosphere above you (per unit area), at any given height.

Here, they are saying assume that the density doesn't change, rather that it's constant all the way up, and it's equal to half of what's taken to be the usual density at sealevel.

How high does this column of "half-dense" air have to be to get standard atmospheric pressure at sea level.
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