The weight of an object on the surface of the Earth is \( 40 \mathrm{~N} \). Its weight (in \( \....

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The weight of an object on the surface of the Earth
\( \mathrm{P} \)
is \( 40 \mathrm{~N} \). Its weight (in \( \mathrm{N} \) ) at a height equal to the radius of the Earth is


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