If the refraction index of amber is 1.55, what is the speed of light through amber? (the speed of light through a vacuum is 3.00 x 108 m/s)

1.94 x 108 m/s

0 m/s

4.65 x 108 m/s

5.17 x 10-9 m/s

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//