Question

At what height above the earth's surface the value is same as in a mine 120km deep

Answer 1

Answer:

Explanation:

⇒ Let the variable "g" represent the height. 

g = 0 ( 1-  ) - (1) 

g = 0 ( 1-   ) - (2) 

⇒ The variable "d" represents the depth or also known as how deep.  

g = 0 ( 1-  ) - (1) ≡ g = 0 ( 1-  ) - (2)  

⇒    = 

⇒ h =  =  = 50 km 

Simplify 

⇒ 50 km