[填空题]
What is thedistance from the Ea+*ai ,vuyfpb6f z/*qx rth’z1nq ba0 (j3fdqjs ./vs center to a point outside the Earth where thegravitational acceleration (abvjjz/13qsnq .df0 due to the Earth is $\frac{1}{10}$ of its value atthe Earth’s surface? $\times10^7$