How do you put 1/2000 into scientific notation? * A. 5.0 x 10^4
B. 2.0 x 10^4
C. 5.0 x 10^-4
E. 2.0 x 10^-4

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

How to tell if a molecule is polar or nonpolar with electronegativity