Which of the following are needed for an electrical circuit? Choose all that apply A. A mental conductor for electrons to pass through
B. light bulb
C. two negative ends to a battery
D. closed loop
E. charged battery to provide an electrical difference

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?

Acontrol during an experiment. might change remains constant does not exist does change

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these