At the surface of Jupiter's moon Io, the acceleration due to gravity is 1.81 {rm m}/{rm s}^{2}
If a piece of ice weighs 44.0 {rm N} at the surface of the earth, what is its mass on the earth's surface?
What is the mass of this piece of ice on the surface of Io?
What is the weight of this piece of ice on the surface of Io?