When light crosses the boundary between layers with different densities, the light is refracted. (A).
Answer:
The metal atoms in the wire can't move, but their outer electrons can. The force pushes those electrons and they move to further parts of the wire, trying to reach the other end. As the electrons move away, new electrons flow into the wire through the battery to take their place.
Explanation:
Answer:

Explanation:
As we know that we board in the car of ferris wheel at the bottom position
So we will have
final height of the car at angular displacement given as


here we know that


so we have


Answer:
D. The momentum of Car B is three times as great in magnitude as that of car A.
Explanation:
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