We live at the bottom of a sea of air. The density of this air at the Earth's surface and 0°C is 1.29 kg/m3. Assume that the density of air does not change as we move away from the Earth.
a) What height would the atmosphere be?
b) Would climbing Mount Everest get you to a place above this height?
c) How high is the outer edge of the atmosphere really?
d) Does a rocket just have to get outside the atmosphere in order to escape from the Earth?