How much heat is required, in calories, to raise the temperature of 57.8 g of silver from
17.0°C to 43.5°C, if the specific heat of silver = 0.057 cal/g“C?

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?