Imagine tying a string to ball and twirling it around you. how is this similar to the moon orbiting earth? in this example what is providing the canstantly changing inward force?

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

What type of force holds atoms together in a crystal?