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## Homework Statement

The gravitational force due to the earth, that acts on a spaceship of mass Ms is GMeMs/d^2, where G is the gravitational constant, Me is the mass of the earth and d is the distance between the center of the earth and the spaceship. A similar expression can be written for the force on the spaceship due to the moon. Give an equation for the balance point of the two points of the two forces, when there would be no force afcting on the spaceship.

How derive an equation for dE in terms of D (the distance from the center of the earth to the center of the moon).

Finally calculate the distance of this point from the Earth. The mass of the Earth is *1.4 times that of the moon, the distance between the two is 3.84*10^8m.

## Homework Equations

Above in the question

## The Attempt at a Solution

Well i hanvt got that far, any help would be appretiated.