Does the nature of intermolecular forces change when a substance goes from a solid to a liquid or from liquid to gas?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit