Learning goal: to understand the parallel-axis theorem and its applications to solve many problems about rotational motion, it is important to know the moment of inertia of each object involved. calculating the moments of inertia of various objects, even highly symmetrical ones, may be a lengthy and tedious process. while it is important to be able to calculate moments of inertia from the definition (i

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?