Assume that at sea-level the air pressure is 1.0 atm and the air density is 1.3 kg/m3.
(a) what would be the height of the atmosphere if the air density were constant?
km

(b) what would be the height of the atmosphere if the air density decreased linearly to zero with height?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

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