N In this lab, you will use a dynamics track to generate
: %
collisions between two carts. If momentum is conserved,
what variable change would result in a velocity change
after a collision? In the space below, write a scientific
question that you will answer by doing this experiment.
I

there are no correct statementd on the list of choices you provided.

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.

answerscientific theory;

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr