5. there was less work done. which of the statements describes how this is possible? (2 points) there was less force applied or there was less movement. there was more force applied and the movement did not change. there was more force applied and there was more movement. there was more force applied or there was more movement.

There was less force applied or there was less movement.

Explanation:

As we know by the definition of work done

W = F.d

so it is product of force and displacement along same directions

So here if work done is smaller then it shows that the product of force and displacement must be small

So here we can say

1). Either the applied force will be small

2). Displacement of the object is small

So here correct answer would be

There was less force applied or there was less movement.

lol

explanation:

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.