a oating is being applied to reduce the reflectivity of a pane of glass to light with a frequency of 5.75 x 10^14 Hz that is incident normally of the pane. if the material has an index of refraction of 1.375 and the glass has an index of 1.537, what is the minimum thickness the coating should have

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

An atom that has gained or lost electrons is called an _

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap