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 90%—or 81% of its original value.) Round all answers to the nearest year.

The magnetic field will be half of what it was in 1845 about ______years after 1845 or_____________ in the year .

The magnetic field will be only 35% of its value in 1845 about ___________ years after 1845 ____________ or in the year .

Solutions

Expert Solution

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?

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.

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

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. Clocks in a stronger gravitational field will tick ___________ than clocks in a weaker gravitational...

1. Clocks in a stronger gravitational field will tick ___________ than clocks in a weaker gravitational field. 2. The Einstein equation says that spacetime curvature arises from the 4-dimensional distribution of ______________and _____________. 3. A girl throws a ball over the top of a speeding car. The ball travels at a velocity v = 3 m/s, while the car travels at a constant velocity of 100 km/hr. The car has a width of 3m and a length of 10 m. How...

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.

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

The aurora is caused when electrons and protons, moving in theearth's magnetic field of ≈5.0×10−5T,...

The aurora is caused when electrons and protons, moving in the earth's magnetic field of ≈5.0×10−5T, collide with molecules of the atmosphere and cause them to glow.A) What is the radius of the circular orbit for an electron with speed 3.0×106 m/s ? Assume that the electron moves in a plane perpendicular to the magnetic field.Express your answer with the appropriate units.B) What is the radius of the circular orbit for a proton with speed 3.0×104 m/s ?

The Earth's magnetic field protects us from cosmic rays, which are extremely-high-energy subatomic particles generated by...

The Earth's magnetic field protects us from cosmic rays, which are extremely-high-energy subatomic particles generated by esoteric processes in interesting parts of the universe. To get an idea of how this protection might happen, pretend the earth's magnetic field has a constant value of 5.0 x 10^-5 T (northward) from the ground up to a height of 50 km. (a) Suppose a high-energy proton (charge +1.6 x 10^-19 C, mass 1.67 x 10^-27 kg) hits the top of the earths...

Subjects