An electron microscope is observing detail on a virus down to 5.0 x 10^-9 m. How fast must an electron in the microscope be moving to observe detail this size? (Hint: Due to diffraction effects, an electron's wavelength must be about the same size or smaller than the object being observed.)

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

Determine the maximum r-value of the polar equation r =3+3 cos 0

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve