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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?
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Chemistry worksheet - i am not sure what they are asking for exactly?
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The organs inside the body and how they function together
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Write down your understanding of plate tectonics....
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