Which of the following statements describes electromagnetism? A. Magnetism can create electricity, and electricity can create magnetism.
B. Magnetism and electricity are actually the same thing.
C. Magnets can do work, and electricity also does work.
D. Electricity and magnetism are both flows of electrons.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

Olá. porque a reação na temperatura é muito rapida a do copo : )

B. nuclear reactions could first occur.

Answer it is also known as the completion state is untrue of the activation complex;