The center of gravity coincides with the center of mass: Select one:
O a. if the center of mass is at the geometrical center of the body
O b. if the body has a uniform distribution of mass
O c. never
O d. if the acceleration due to gravity is uniform over the body
o e. always

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

Atomic nuclei of almost all elements consist of