The answer is A.) The ratio of thier masses is always the same
The change in gravitational potential energy due to change in position must be the change in it's kinetic energy as the system is isolated! so find out the potential energies of the two different points!
<span>PE=−[G<span>M1</span><span>M2</span>]÷R
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Potential energy of a particle due to mass A is not affected by presence of any other mass B !</span>
Answer:
single replacement
Explanation:
In the question it says one element replaces another element which means there is only one replacement.