4unlike images produced by a convex spherical mirror, images produced by concave spherical mirrors
a. are always going to be displayed upright, not inverted
b, are located only by the mirror
c. are always going to be virtual
d. can be real or virtual depending on the object's placement

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.