PLEASE HELPPP !! A 6kg object experiences a force of 15N to the right and 2N to the left.
What is its resulting acceleration?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

What’s #16 asking me and how do i solve it?

Difference between series and parallel circuits