Answer
See work.
Work Step by Step
a. Find the mass of the boulder.
$m=\frac{w}{g}=\frac{44.0N}{9.80m/s^2}=4.49kg$
b. The mass is the same on Io as it is on Earth.
Find the weight on Io.
$w=mg$
$=(4.49kg)(1.81m/s^2)=8.13N$
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