Describe how a magnetic field moves in a magnet. plz help!!

Physics

1 answer:

Sindrei [870]3 years ago

7 0

Answer:

In a permanent magnet, the magnetic field comes from the motion of the electrons inside the material, or, more precisely, from something called the electron spin. The electron spin is a bit like the Earth spinning on its axis. The magnetic field is a vector, the same way the electric field is.

Explanation:

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A car stops in 130 m. If it has an acceleration of -5 m/s2 what was the cars starting velocity?

Tatiana [17]

Answer:

We are given:

displacement (s) = 130 m

acceleration (a) = -5 m/s²

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Solving for initial velocity:

From the third equation of motion:

v² - u² = 2as

replacing the variables

(0)² - (u)² = 2(-5)(130)

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