Ais a region so dense that nothing, including light, can escape its gravity field. a. supernova c. black hole b. white dwarf d. supergiant select the best answer from the choices provided

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?