Vécto vận tốc của một vật dao động điều hoà luôn ?

Describe the function of the endomembrane system? what organelles are involved?

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.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?