The moon is about 400,000 km from the earth . Using Newton’s law of gravity how would the attraction between the earth and moon change if the distance from the earth was halved to 200,000 km?

The isotonic saline solution described in part a is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. based on this information, what can be said about these two solutions?

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?