In the picture, what can you say about the indices of refraction n1 and n2? (1 point)

n1 < n2

n1 > n2

n1 = n2

Not enough information to tell

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.

Mixing salt in water is an example of physical change