A moving box slides across the floor to a stop. The energy, to begin with, is kinetic energy, but what does the energy become?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy