The index of refraction in flint glass is 1.66 for blue light and 1.61 for red light, with the values for other colors between these limits. a ray of white light traveling from left to right through a slab of flint glass undergoes dispersion as it exits the slab and enters the air. the exiting ray strikes the right surface of the slab at an angle of 20.0 ∘
a) what is the angle of refraction for the blue light?
b) what is the angle of refraction for the red light?
c) a flat opaque screen is placed in the path of the refracted rays such that the red ray strikes perpendicular to the screen. if the distance along the refracted red ray from slab to screen is 0.50 m, what is the distance between the point of red light and the point of blue light in the rainbow produced on the screen? (use the small-angle approximation.)

What is the relationship between atmospheric pressure and the density of gas particles in an area of increasing pressure? (2 points) as air pressure in an area increases, the density of the gas particles in that area decreases. as air pressure in an area increases, the density of the gas particles in that area increases. as air pressure in an area increases, the density of the gas particles in that area remains constant. as air pressure in an area increases, the density of the gas particles in that area increases and decreases in an alternating pattern. 3. which of the following correctly describes a way in which earth's atmosphere interacts with the geosphere? (2 points) it contains gases that living organisms breathe. it contains gases that trap incoming solar radiation. it provides a medium for cycles that provide nutrients to living organisms. it provides a medium for water to move between earth's surface and the air. 4. which of the following is considered a drawback to using wind energy as a source of power? (2 points) wind energy is nonrenewable. wind energy produces large amounts of air pollution. wind turbines can kill birds that fly through the rotors. wind turbines are built too close to major population centers. 5. a meteorologist predicts that the weather in a region will soon change from clear skies to probable thunderstorms. prior to making this prediction, what did the meteorologist most likely observe on a barometer? (2 points) the barometer fell slightly. the barometer fell substantially. the barometer rose slightly. the barometer rose substantially. 6. which of the following do meteorologists not typically use weather balloons to record? (2 points) atmospheric pressure cloud types humidity temperature 7. during which step in the can crush lab did water vapor force air from the can? (2 points) the can was filled nearly to the top with water. the can was placed on the hot stove top burner for several minutes. the can was removed from the hot stove top burner. the can was placed upside-down in the water-filled pan.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

Which is a substance that can be separated by physical means and is not the same throughout