Vertically polarized light with intensity is incident on a horizontal polarizer. What is the intensity of the outgoing wave?

In what direction does the medium move relative to the direction of the wave? explain.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?