jesussanchez1445

31.01.2020 • 

Biology

High above the surface of the earth, charged particles (such as electrons and protons) can become trapped in the earth's magnetic field in regions known as van allen belts. a typical electron in a van allen belt has an energy of 40 kev and travels in a roughly circular orbit with an average radius of 210 m. what is the magnitude of the earth's magnetic field where such an electron orbits?

Ответ:

toni240

17.01.2022

Biology

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 mv^2 =2* e*40k J/Cv=  sqrt(2* e*40k/m)
mv^2/r = F centripetal = evB2* e*40k/(210*sqrt(2* e*40k/m)*e) =BB=√e∗80,000∗m−−−−−−−−−−−/210

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Ответ:

Enaszr9657

16.03.2022

Biology

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B. fallopian tube

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