[填空题]
Given that the acceleration of gravity at the1+nn kgl5 inz) surface of Mars isa gu1 mlb9xu*9t+55-vu/6 k u mabfldb 0.38 of what it is on Earth, and that Mars’ radius is 3400 km, determine the mass of Mars.gbm9/a +v6f*luu 9k ld5xtbumu1 ba-5 $\times 10^{23}$
