Which form of pure carbon is so hard that it can be used in cutting tools?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

The energy produced as a result of this flow of electrons from atom to atom is called

Hunter’s velocity was 4.5 m/s. at the end of his race, his velocity was the same. which best describes his movement? his movement stopped. his acceleration is zero. his time was constant. his acceleration was positive.