Which type of friction can best be described as the force between objects that are moving?
a. sliding friction
b. static friction
c. kinetic friction
d. rolling friction

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

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?