(Answered) The distance l from a point at a height h above the earths

Statistics

The distance l from a point at a height h above the Earth's surface to the horizon can be approximated using Pythagoras' theorem by the expression:

(a) Find an expression which serves as a linear approximation for l at h=1000 m.

(b) Give two assumptions you think have been made in deriving the expression above.

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