Arock is dropped straight off a bridge that is 9 meters above the ground and falls at a constant speed of 10 m/sec. another person is 12 meters away on the same bridge. at what rate is the distance between the rock and the second person increasing just as the rock hits the ground?

Define the meaning of the unalienable rights of life liberty and persuit of happiness

What happens in a global convection cell

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?