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julia-pushkina [17]
3 years ago
12

Which statement correctly describes the Earth's magnetic field?

Physics
2 answers:
Kisachek [45]3 years ago
7 0
"<span>The geomagnetic north is similar to the south pole of a magnet" is the statement among the following statements given in the question that correctly describes the Earth's magnetic field. The correct option among all the options that are given in the question is the second option. I hope the answer helps you.</span>
Zielflug [23.3K]3 years ago
7 0

Answer:

the geomagnetic north is similar to the south pole of a magnet

Explanation:

The terrestrial magnetic field is what makes compasses possible, used for location in space. Thanks to this invention, the great navigations could happen. The terrestrial magnetic field prevents the entry of particles with high speed coming from the Sun (solar wind). Upon reaching the Earth's magnetic field, these particles that make up the so-called solar wind are deflected because of the electrical charge they have. If they could reach the Earth's surface, they would damage and prevent communication by radio waves, TV, internet, etc.

An important statement about the Earth's magnetic make-up is that the geomagnetic north is similar to the south pole of a magnet.

The dynamo theory is the most accepted for explaining the Earth's magnetic field. According to this idea, iron and nickel in a state of fusion, at about 3,000 km of depth, move generating electric currents that cause the magnetic field.

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Answer:

d. 37 °C

Explanation:

m_{m} = mass of lump of metal = 250 g

c_{m} = specific heat of lump of metal  = 0.25 cal/g°C

T_{mi} = Initial temperature of lump of metal = 70 °C

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c_{w} = specific heat of water = 1 cal/g°C

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m_{c} = mass of calorimeter  = 500 g

c_{c} = specific heat of calorimeter = 0.10 cal/g°C

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T_{f} = Final equilibrium temperature

Using conservation of heat

Heat lost by lump of metal = heat gained by water + heat gained by calorimeter

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