People, such as pilots, who have to move quickly from lighted surroundings to night darkness use red light illuminatin. This is because
red light slows down dark adaptation.
red light is a stimulating color and tends to keep pilots and military personnel
aroused and alert.
the cones are insensitive to red light.
the rods are insensitive to red light.

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm