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gizmo_the_mogwai [7]

4 years ago

6

A strong magnetic field surrounds earth. How does earths magnetic feild help humans?

1 answer:

Solnce55 [7]4 years ago

6 0

Answer:

Earth's magnetic field deviates high energy particles (e.g cosmic rays) that are a risk for human health.

Explanation:

Cosmic rays are high energy charged particles (88% protons, 10% nuclei of helium, 1% heavier nuclei) that came from the outer space. The energies of these particles are in the range of 1 GeV to 10⁸ TeV. Since they are charged particles, they will be deviated by Earth’s magnetic field¹ (as a reminder: A magnetic field applies a magnetic force over a moving charged particle).

Earth’s magnetic field works as a shield to humans against high energy charged particles, if cosmic rays were in touch with a human body, it can break molecules that forms DNA structure². Modifying that structure can lead to diseases as cancer, for example.

Units:

GeV: Giga-electronvolt

TeV: Tera-electronvolt

¹Magnetic field: It is generated around the space of a moving charged particle.

²DNA structure: It is a compound of different molecules that provides information to cells functionality.

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3 years ago

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erma4kov [3.2K]

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Explanation:

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$2.0 *10^{11} = \frac{3.0*10^9}{\frac{\Delta L}{L} }$

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