A convex refracting surface has a radius of 12 cm. Light is incident in air (n = 1) and refracted into a medium with an index of refraction of 2. Light incident parallel to the central axis is focused at a point: Group of answer choices 3 cm from the surface 6 cm from the surface 24 cm from the surface 12 cm from the surface 18 cm from the surface

answer; equivalent to a one(1) horsepower motor;

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)