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
Readme [11.4K]
3 years ago
5

The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a

potential difference of about 0.063 V exists across the membrane. The thickness of the membrane is 9.9 x 10-9 m. What is the magnitude of the electric field in the membrane
Physics
1 answer:
sertanlavr [38]3 years ago
7 0

Answer:

Electric field, E = 6.36\times 10^{6}\ V/m

Explanation:

Given that,

The potential difference across the membrane, \Delta V=0.063\ V

The thickness of the membrane is, \Delta x=9.9\times 10^{-9}\ m

We need to find the magnitude of the electric field in the membrane. We know that the relation between electric field and electric potential is given by :

E=\dfrac{-\Delta V}{\Delta x}\\\\E=\dfrac{0.063\ V}{9.9\times 10^{-9}\ m}\\\\E=6.36\times 10^{6}\ V/m

So, the magnitude of the electric field in the membrane is 6.36\times 10^{6}\ V/m.

You might be interested in
Given that on Earth, gravity causes an acceleration of 9.8 m/s2, what is an acceleration of 7 g?
zzz [600]

Answer:

68.6 m/s^2

Explanation:

1 g = 9.8 m/s^2

so

7 g × 9.8m/s^2 = 68.6

7 0
2 years ago
When a 5 kg rock is dropped from a height of 6 m on Planet X, it loses 24 J of GPE. What is the acceleration due to gravity on P
yan [13]

Answer:

g = 1.25m/s²

Explanation:

Given the following data;

Mass = 5kg

Height = 6m

Gravitational potential energy = 24J

To find the acceleration due to gravity;

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

P.E = mgh

Where,

P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

GPE = mgh

Substituting into the equation, we have;

24 = 5*6*g

24 = 30g

g = 30/24

g = 1.25m/s²

Therefore, the acceleration due to gravity on Planet X is 1.25m/s².

8 0
3 years ago
Which of these is equivalent to the law of conservation of energy?
Korolek [52]
The Law of the Conservation of Energy is stating that the total mechanical energy is always conserved or in simpler terms, not used or saved.
7 0
3 years ago
Read 2 more answers
Which will produce a magnetic field?
Yanka [14]

Answer:

Answer:

a magnet

3 0
3 years ago
If an objects speed is constant and the direction is in a straight line what type of velocity does the object have
storchak [24]
That's unaccelerated motion, and constant velocity.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Hi please help with this question! Need the workings.
    6·1 answer
  • Torque can be calculated by multiplying the force ( n ) applied at 90 â to the lever arm at a distance ( m ) from the pivot poin
    8·2 answers
  • What information do you think the temperatures of stars give us?
    11·2 answers
  • A toaster is plugged into a 132 volt household circuit it draws the amps of current If you use a toaster 2 hours a week how much
    13·1 answer
  • A car drives for 30 km with a speed of 30m/s. How much time does it take the car to travel this distance?
    9·1 answer
  • LC CIRCUIT: A 20.00-F capacitor is fully charged by a 100.00-V battery, then disconnected from the battery and connected in seri
    12·1 answer
  • A rock is dropped from a 164-m-high cliff. How long does it take to fall (a) the first 82.0 m and (b) the second 82.0 m
    15·1 answer
  • When a transformer is step down then
    9·1 answer
  • The metal wire in an incandescent lightbulb glows when the lights is switch on and stops glowing when switched off. This simple
    14·2 answers
  • How to calculate this operation? m=10kg and L=2500J/kg? What is the Energy?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!