Dr. Eriksson is working on a material called selenium. She is adding a certain number and type of atoms to the selenium, which will control conductivity. Selenium is most likely what kind of material?

Explain vector addition, triangle method and parallelogram method

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon