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
svet-max [94.6K]
3 years ago
7

Measurements are made of the longitudinal axoplasmic resistance of two unmyelinated axons. Along a 1 cm length of one axon, whic

h has a diameter of 1 mm, the resistance is 10 MOhms. For the same length of another axon that has a diameter of 4 mm but is otherwise identical, what resistance (in MOhms) would you expect to measure
Biology
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

0.625‬ MOhms

Explanation:

Since the resistance of the unmyelinated axon ,R is inversely proportional to the square of its diameter, d

R ∝ 1/d²

R₁/R₂ = d₂²/d₁² where R₁ = resistance of first axon = 10 MOhm, d₁ = diameter of first axon = 1 mm, R₂ = resistance of second axon and d₂ = diameter of second axon = 4mm

So, R₂/R₁ = d₁²/d₂²

R₂ = (d₁²/d₂²)R₁

R₂ = (d₁/d₂)²R₁

substituting the values of the variables into the equation, we have

R₂ = (d₁/d₂)²R₁

R₂ = (1 mm/4 mm)²10 MOhms

R₂ = (1/4)²10 MOhms

R₂ = (1/16)10 MOhms

R₂ = ‭0.0625‬ × 10 MOhms

R₂ = ‭0.625‬ MOhms

You might be interested in
Cells that rely information gained from the environment
AlekseyPX
The answer is neurons.
3 0
3 years ago
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
Agata [3.3K]

Answer:

2,855 is the size of the colony of mosquitoes after 4 ​days.

Explanation:

The law of uninhibited growth is given as:

A=A_o\times e^{k\times t}

A_o= Original amount

A = Amount after time t

k = Positive constant repressing the rate of growth

We are given with:

Original population of mosquitoes = 1000

Population of mosquitoes after 1 day =1300

t = 1 day

1300=1000\times e^{k\times 1 day}

k = 0.2623 day^{-1}

Population size of mosquitoes after 4 days

A_o=1000, k= 0.2623 day^{-1}

A =? , t = 4 days

A=1000\times e^{ 0.2623 day^{-1}\times 4 days}

A =2,855.36 ≈ 2,855 mosquitoes

2,855 is the size of the colony of mosquitoes after 4 ​days.

5 0
4 years ago
Read 2 more answers
The tree of life is made up of which domains? Eubacteria , Archaea, and Eukarya Bacteria , Archaea, and Eukaryota Bacteria , Arc
den301095 [7]
<span>The three domains of the tree of life are the Eubacteria, Archaea, and Eukarya. The Eubacteria and Archaea are the organisms that do not have nuclei and cell organelles. Eukarya are all other organisms that include nuclei, which would later include animals, fungi, and plants in general.</span>
3 0
3 years ago
WHAT MIGHT HAPPEN IF<br> ALL THE HERBIVORES IN<br> A FOOD WEB<br> DISAPPEAR?
skelet666 [1.2K]

Answer:

Well, if all the herbivores disappeared, multiple things could occur. Without anyone keeping plants in check, plants may grow too abundant and may be harmful to the food web. Not only that, but predators that eat herbivors might starve without food. On the plus side, natural resources like water would increase without herbivores drinking/using it.

I hope this helps :)

Explanation:

5 0
3 years ago
Read 2 more answers
Why is the number of producer higher in food chain?​
velikii [3]

Answer:

because the plants are more thanare autotrophs, or organisms that produce their own food. ... They are at the bottom of the food chain because they are eaten by other organisms, and they don't need to eat for energy. Producers make their own food through the process of photosynthesis instead of eating organic matte

5 0
3 years ago
Other questions:
  • How can you increase an object's gravitational potential energy?
    8·1 answer
  • Suppose a star is undergoing a nuclear reaction. What happens to the elements around the star as it begins to emit more and more
    15·1 answer
  • In tomatoes, tall (D) is dominant over dwarf (d) and smooth fruit (P) is dominant over pubescent fruit (p), which is covered wit
    6·1 answer
  • why do some scientists theorize that global warming might not be the result of increases in atmospheric carbon dioxide
    14·1 answer
  • Briefly explain the three functions of the kidney. Explain how each function contributes to making urine.
    11·1 answer
  • _______ part of our brain generates signals for involuntary action.​
    12·2 answers
  • Which of the following does not require the release of a first messenger?
    11·2 answers
  • Which layer of soil holds the water trees use​
    10·1 answer
  • Explain why renewable energy sources like solar, wind, and geothermal power have more limitations to their use than
    5·2 answers
  • Some say that if you listen to the sound of a cricket chirping, you can determine the temperature. Is this true or is it just an
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!