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shtirl [24]
3 years ago
5

‼️‼️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 <u>the north pole is where the magnetic lines of force leave the magnet </u>and <u>the south pole is where the magnetic lines of force enter the magnet.  </u>

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 <u>near the geographic north pole</u>.  

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

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On an essentially frictionless, horizontal ice rink, a skater moving at 3.0 m/s encounters a rough patch that reduces her speed
JulsSmile [24]

Answer: 1.25 m

Explanation:

Given

initial velocity(v_i )=3 m/s

Final velocity(v_f)=0.55\times 3=1.65 m/s

Change in kinetic Energy =work done by Friction

change in Kinetic Energy=\frac{m}{2}\left ( v_i^2-v_f^2\right )

work done by friction=\mu mgL

\frac{m}{2}\left ( 3^2-1.65^2\right )=0.25\cdot mg\times L

3.135=0.25\times 9.8\times L

L=1.25

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3 years ago
How does a growing human population affect resource use?
notka56 [123]

Answer:

Explanation:

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8 0
4 years ago
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morpeh [17]

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Synthesis Reaction

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3 years ago
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Which of the following statements are true? Positively charged objects attract other positively charged objects. Negatively char
butalik [34]
The statement that is true is that positively charged objects attract negatively charged objects. This is due to a law that states 'like forces attract while unlike forces repel. This same concept applies to magnetism. If you put two similar poles together, for example; if you place two south poles together. You feel a separating force between the two poles. But if you place two opposite poles together they attract each other. Hope i helped. <span />
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3 years ago
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G Railroad tracks are made from segments L = 79 m long at T = 20° C. When the tracks are laid, the engineers leave gaps of width
Andreyy89

Answer:

l=L\alpha(T_c-T)

Explanation:

L = Initial length of segment = 79 m

T = Normal temperature = 20^{\circ}\text{C}

l = Width to be left for expansion

\alpha = Coefficient of linear expansion of the material = 12\times 10^{-6}^{\circ}\text{C}^{-1}

T_c = Maximum temperature = 39.5^{\circ}\text{C}

\Delta T = Change in temperature = T_c-T

The expression of linear expansion is given by

l=L\alpha\DeltaT\\\Rightarrow l=L\alpha(T_c-T)

The expression for the minimum gap distance l the engineers must leave for a track rated at temperature T_c is l=L\alpha(T_c-T)

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3 years ago
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