42.6 is the answer I believe because you would do 2,560 divided by 60 if I'm correct.
Using coils of fewer turns on the electromagnet
Answer:
Light slows down when it moves from air into water.
Explanation:
It is the property of light that travels faster in a less dense medium.
In a more dense medium, the speed of the light slows down and bends towards the normal.
The air is less dense medium and water is a more dense medium.
When light passes from air to water, the light bends.
This is known as the refraction of light.
It would be negative regardless of what you define as a positive direction.