Astronomers infer that the universe is expanding because distant galaxies all appear to . Astronomers infer that the universe is expanding because distant galaxies all appear to . rotate rapidly be made mostly of dark matter be moving away from us, with more distant ones moving faster be growing in size

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?