Which statement best describes the difference between strong nuclear forces and weak nuclear forces?

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

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.

The slope of a velocity time graph over any interval of time gives the during that interval