At which height above earth's surface is the value of 'g' same as in a 100 km depp mine ?

At which height above earth's surface is the value of 'g' same as in a 100 km dip mine ?

At what height above the earth's surface, the value of g is same as in mine 80 km deep?

At what height above the earth's surface, the value of g is same as that at a depth of 100 km ?

At what height above the earth's surface, the value of g is same as that at a depth of 100 km ?

At what height above the earth's surface does the value of g becomes 36% of the value at the surface of earth ?

At what height above the earth's surface does the value of g becomes 36% of the value at the surface of earth ?

A what height above the earth's surface the value of g becomes 25% of its value on the earth if radius of the earth is 6400km.

At what height above the earth surface, the value of g is half of its value on earth's surface ? Given its radius is 6400 km