1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergeinik [125]
3 years ago
9

High above the surface of the Earth, charged particles (such as electrons and protons) can become trapped in the Earth's magneti

c 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?
Biology
1 answer:
castortr0y [4]3 years ago
7 0
 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
You might be interested in
PLZ HELP I AM TAKING A QUIZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Taya2010 [7]

Answer:

QUESTION:

Are involuntary muscles

A) cardiac

B) smooth

C) skeletal

ANSWER:

muscle governing reflex functions and not under direct voluntary control especially: smooth muscle.

Explanation:

Hope that this helps you out! :)        

If you have any questions please put them in the comment section below this answer.        

Have a great rest of your day/night!        

Please thank me on my profile if this answer has helped you.

3 0
3 years ago
If you need help friend me 4th-7th grade
marin [14]

Answer:

okay

Explanation:

just want your help

5 0
3 years ago
In the BOREAS study, scientists are trying to determine if a large amount of carbon is being taken in by what biome? a. rainfore
belka [17]

<u><em>Boreal forest </em></u><em> is a large amount of carbon is being taken in by Biome</em>

Answer: C. Boreal forest

Explanation:

BOREAS is the investigation completed in the boreal woodland at Canada that spotlights on improving our comprehension of the radiant energy, heat, water, carbon dioxide and gases between the boreal forest and the environment.

An essential goal of BOREAS was to gather the information expected to improve the models of computer simulation of the significant procedures controlling these exchanges with the goal that researchers can envision the impacts of worldwide change on the biome.

4 0
3 years ago
What is cancer? why is it dangerous?
Ira Lisetskai [31]

Answer:

Explanation:

Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue. Cancer often has the ability to spread throughout your body. Cancer is the second-leading cause of death in the world.

3 0
3 years ago
Read 2 more answers
which statement BEST describes an individual enzyme? A. it lowers the activation energy of a reaction and affects many different
irina [24]
I say C. <span>it lowers the activation energy of a reaction in affects only very specific reactions. Correct me if I'm wrong tho...thank you ;)</span>
6 0
3 years ago
Other questions:
  • How does the composition of a typical lava dome differ from that of a typical fissure eruption?
    13·1 answer
  • During DNA replication two identical DNA molecules are produced from one original molecule. Which statements below explains why
    14·1 answer
  • Bacteria in the phylum ________ occur as elementary or reticulate bodies depending on their life cycle stage, are obligate intra
    12·1 answer
  • Is an enzyme used up in a chemical reaction?
    14·2 answers
  • What type of molecule is represented by the model below?
    9·1 answer
  • A detailed explanation of genitics and genetic engineering.
    10·2 answers
  • Which of the following has a cell membrane?
    8·1 answer
  • Scientists often turn to tropical forests when searching for new species. Why do you think this is?
    9·1 answer
  • What is the effect of alcohol administration on the frequency of Daphnia heart contractions and how does this effect of alcohol
    12·1 answer
  • arrange the organisms from fastest to slowest based on the the time theyd take to complete the 20th carnegie stage
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!