Which wind gets hot : Water to earth surface or from surface of earth to upward.

If a ball is thrown upwards from the surface of earth :

A body is projected vertically upward from the surface of the earth with escape velocity. Calculate the time in which it will be at a height (measured from the surface of the arth) 8 time the radius of the earth (R). Acceleration due to gravity on the surface of the earth is g.

Total earth's surface covered by water is

Total earth's surface covered by water is

A body is projected vertically upward direction from the surface of earth. If upward direction is taken as positive, then acceleration of body during its upward and downward journey are respectively

Where is 'g' maximum, on the surface of earth, above the surfce or below the surface of Earth ?