is there anyone good at chemistry that can solve this pic? thank u so much but since we're learning stuff online I'm barley understanding a thing! ​

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?

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Which of these is a physical property