Using appendix f, a) give the largest and smallest band gap energies e, (ev) for the semiconductors listed. b) calculate the wavelengths of light corresponding to these band gap energies. c) referring to the e, (ev) corresponding to the binary iii-v compounds, for a given iii element, how does e, vary with the size of the v element? d) for a given v element, how does e, vary with the size of the iil element? e) why does this variation occur? (hint: think about the coulomb force.) the same type of behavior occurs for the ii-vi compounds.

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.