In a presentation about measuring mass, one of your classmates states, "two objects of the same size will always have the same mass.” is this statement correct? why or why not?

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

What causes the development of most clouds and precipitation in the atmosphere?