An astronaut weighs 104 n on the moon, where the acceleration of gravity is 1.61 m/s2. how much does he weigh on earth?

Newton's Second Law of Motion states, “The force acting on an object is equal to the mass of that object times its acceleration.” We calculate as follows:

F = ma

At the moon,

104 N = m(1.61 m/s^2)
m = 64.60 kg

Mass will still be the same when on earth since mass is conserved.

At earth,

F=ma
F = 64.60 kg (9.8 m/s^2)
F = 633.04 N <ANSWER

Independent variable is something that is changed in a experiment.