I WILL GIVE BRAINLIESTWhich site is moving the fastest? Which is moving Slowest? Norco North= 2.4 cm/yr North East= -2.3 cm/yr
Site 6106 North= 2.4 cm/yr East =-2.15 cm/yr
MT. Luna North= 1.4 cm/yr East= -1.2 cm/yr
Arrowhead North= 1.7 cm/yr East= -1.6
Point65 North= 1.4 cm/yr East= -1.5 cm/yr

the part of the wave he is travelling on is the crest

-4 on

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.