Write a brief note on why Earth's magnetic field may have allowed it to keep its...

Write a brief note on why Earth's magnetic field may have allowed it to keep its atmosphere whereas Mars’ lack of a comparable field may have contributed to its loss of an atmosphere.

Solutions

Expert Solution

Sun continuously releases charged particles from its upper atmosphere (corona) out into the solar system, this emmision is known as solar winds. This stream of charged particles are very energetic and when it interacts with the particles in the atmosphere, it gives them enough energy to escape from the planet's gravity. For example, on mars, the solar wind particles strikes it at about 1,000,000 mph (447,000 m/s, or about 0.15% the speed of light), an incredibly fast rate. So, the bottomline is that the solar wind is harmful for atmosphere. This is why Mars currently loses about 100 grams of atmosphere every second.

But, when there is presence of magnetic fields, the charged particles get deflected by lorentz force and that's why on Earth they funnel into the poles, creating beautiful Aurora sites. So, Earth's Magnetic field indeed helped us in protecting our atmosphere over these billions of years.

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

Could you measure the Earth's magnetic field (magnitude and direction) using the magnetic field sensor? If...

Could you measure the Earth's magnetic field (magnitude and direction) using the magnetic field sensor? If so, How? If not, why not?

The Earth's magnetic field Select one: a. has flipped its North and South pole directions numerous...

The Earth's magnetic field Select one: a. has flipped its North and South pole directions numerous times b. controls the orbit of the Moon c. is generated by The Sun d. has remained constant since it was first created

In 2005, the Earth's magnetic field was about 10% weaker than it was in 1845 when...

In 2005, the Earth's magnetic field was about 10% weaker than it was in 1845 when German mathematician Carl Friedrich Gauss first measured it. If the magnetic field continues to weaken by 10% of its current value every 160 years, approximately when will it be half of its 1845 value? When will it be only 35% of its 1845 value? (Note that we are supposing, in this question, that after 320 years the strength of the field is 90% of...

We are introduced to the magnetic field as a way to keep track of the force...

We are introduced to the magnetic field as a way to keep track of the force that arises from lenght contraction in special relativity. A moving distribution of charge becomes more dense in the right frame. So in a way, the magnetic field is just the E-field. However, when I glance over the physics of permanent magnets, it is said that their magnetic field arises from the integral sum of their electrons with aligned spin(which generates a magnetic moment).Spin is...

At a site where the Earth's magnetic field has a magnitude of 0.45 gauss (where 1...

At a site where the Earth's magnetic field has a magnitude of 0.45 gauss (where 1 gauss = 1.00 10-4 T) and points to the north, 68? below the horizontal, a high-voltage power line 167 m in length carries a current of 120 A. Determine the magnitude and direction of the magnetic force exerted on this wire, if the orientation of the wire and hence the current is as follows. (a) horizontally toward the south magnitude in N direction 2---Select---northsoutheastwest...

In regards to the right hand rule, given Earth's electric and magnetic field, in which "direction"...

In regards to the right hand rule, given Earth's electric and magnetic field, in which "direction" would a particle go?

1. Determine the strength of the Earth's magnetic field (8.00 x 10-5T) on an airplane that...

1. Determine the strength of the Earth's magnetic field (8.00 x 10-5T) on an airplane that acquires a static charge of 0.500 ?C traveling east at 660 m / s. 2. Determine the radius of the circular path of an electron that enters perpendicular to the magnetic field of the Earth (1.00 x 10-5 T) with a speed of 7.50 x 106 m / s.

Write a brief note on Breton woods conference

Investigate about: 1.Earth's magnetic field. 2.Ferromagnetic, ferrimagnetic and diamagnetic materials. BIG SUMMARY,With Images.

(i) Why do neutron stars have a strong magnetic field if they are composed of neutrons,...

(i) Why do neutron stars have a strong magnetic field if they are composed of neutrons, which have no charge? (ii) What stabalizes these chargeless neutrons from decaying within the neutron star? (iii) How do neutron stars cool down? (iv) What can be learned about the interior of neutrons stars by measuring the temperatures of neutron stars?

Subjects