4. Unpolarized light is incident from the left on a polarizer that has its polarizing axis vertical. The light, after passing through the first polarizer, then passes through another
such unit. If the intensity of the incident, unpolarized beam was I. and the in ensity of the
emerging beam is 1./4, what is the angle between the polarizing axes of the two polarizers"​

answer; i believe that the correct answer is (d) a very small amount of mass

falling water hydro = water .. spectcular places these plants are

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

1 the 4 is sig