A student describes the motion of particles in each of the four different states of matter. State 1: Particles that are charged move freely State 2: Particles move freely at high speed State 3: Particles are locked in place State 4: Particles slide past one another Which state describes plasma? Group of answer choices State 1 State 2 State 3 State 4

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?