As a roller coaster car starts down a slope, it’s velocity is 4m/s. but 3 seconds later it’s velocity is 22m/s in the same direction. what is its acceleration

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.