First Blank: 40 kg, the mass of an object does not change. Mass is how much space an object takes up, therefore it does not change due to gravity.
Second Blank: 6.66 N. the gravity on the moon is nearly approximately 1/6 as Earth, so you just divide its normal weight on Earth, which is 40 kg, by 6 and fill it in.
So when one scientist turns around and says the mass of an electron is 9.10938291×10^-31 kilograms we know what a kilogram is and so we don't get an answer that it's 32949 microsmiths as he invented his own measurement because he needed one.
