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3 years ago

‼️‼️PLEASE HELP ASAP‼️‼️ Which best describes earths south magnetic pole?

Physics

2 answers:

Hoochie [10]3 years ago

8 0

Answer:

moving

Explanation:

devlian [24]3 years ago

6 0

Answer: B. Aligned with the geographic North Pole

Explanation:

According to classical physics, a magnetic field always has two associated magnetic poles (north and south), the same happens with magnets.

In this context, Earth is similar to a magnetic bar with a north pole and a south pole. This means, the axis that crosses the Earth from pole to pole is like a big magnet.

Now, by convention, on all magnets the north pole is where the magnetic lines of force leave the magnet and the south pole is where the magnetic lines of force enter the magnet.

Then, for the case of the Earth, the north pole of the magnet is located towards the geographic south pole and the south pole of the magnet is near the geographic north pole.

However, the Earth magnetic field is changing, which means the magnetic poles are slowly moving.

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shepuryov [24]

Answer:

$v=\sqrt{\frac{kZe^2}{mr}}$

Explanation:

The electrostatic attraction between the nucleus and the electron is given by:

$F=k\frac{(e)(Ze)}{r^2}=k\frac{Ze^2}{r^2}$ (1)

where

k is the Coulomb's constant

Ze is the charge of the nucleus

e is the charge of the electron

r is the distance between the electron and the nucleus

This electrostatic attraction provides the centripetal force that keeps the electron in circular motion, which is given by:

$F=m\frac{v^2}{r}$ (2)

where

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Combining the two equations (1) and (2), we find

$k\frac{Ze^2}{r^2}=m\frac{v^2}{r}$

And solving for v, we find an expression for the speed of the electron:

$v=\sqrt{\frac{kZe^2}{mr}}$

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Answer:

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Explanation:

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4 years ago

Read 2 more answers