Awave has a frequency of 3,5mhz and a wavelength of 85,5 m. what is the wave velocity through
air (air, n=1,00)?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

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?

All motion is caused by force? true or false