I strongly dislike rude people. Especially after I try to stick up for them! Why are there even people like this in the world??

Aneutron and a proton combine to form a nucleus. why does the mass of the nucleus differ from the sum of the masses of the individual nucleons?

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger

What is the momentum of a 2 kg object moving at 15 meters per second