Weight on the Moon = 291 N. W = g · m, where m stays for the mass and on the Moon g = 1.67 m/s² 291 N = 1.67 m/s² · m m = 291 kg m / s² : 1.67 m/s² m = 174.25 kg Weight on Earth = 9.81 m/s² · 174.25 kg = 1,709.4 N Answer: The weight of an astronaut on Earth is 1,709.4 N.
"b. The nucleus is made of
protons and neutrons and has a positive charge" is the only option that is true about the atomic nucleus. The protons give it a positive charge.
