Im confused. i was recently told that every color you see is not that color. that, that object absorbs all the light colors and reflect that one into your eye. is this true and can anyone proove it. tell me im really curious.

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?