posted by Jess
What is the mass of 4.2 kg of gold when it is transferred to a planet having twice the gravity of earth?
2 x 4.2 kg?
I believe I answered this elsewhere are well, but...
Weight and mass are two different things.
Mass is a measure of the amount of matter contained in something, weight is a measure of force (F-ma).
Doubling the gravity would certainly affect the weight, but do you think it would affect the mass?