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
REY [17]
3 years ago
10

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 0.076 V exists across the membrane. The thickness of the membrane is 8.9 x 10-9 m. What is the magnitude of the electric field in the membrane?
Physics
1 answer:
BlackZzzverrR [31]3 years ago
3 0

Answer:

E = 8.5 * 10^6 V/m

Explanation:

In general we have the following relation between the Electric Field and the Elecric Potential:

\int\limits^2_1 {\vec{E} \cdot\vec{dl}} = V_{2} -V_{1}

Due to the vector nature of the electric filed, we can only know the mean Electric field E across the membrane, and take it out from the integral, that is:

E = (ΔV)/L

Where L is the thickness of the membrane and ΔV is the potential difference.

Therefore:

E = 8.53933*10^6 V/m

rounding to the first tenth:

E = 8.5 * 10^6 V/m

You might be interested in
cheryl has a mug that she says is made up of matter. heather says that the hot chocolate inside the cup is made up of matter, to
9966 [12]
Well,  basically both Cheryl and Keaton is right.

matter is described as Physical substance that possessed space and mass.

But the thing is, one matter is very small in size and cannot be seen with naked eyes. But everything around us are made by matters

hope this helps


3 0
3 years ago
Which tool is used to track which organisms are carriers of a specific trait through several generations?
maw [93]

Answer:

answer is a pedigree chart :)

Explanation:

5 0
3 years ago
Read 2 more answers
A 91-kg astronaut and a 1300-kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, givi
WARRIOR [948]

Answer:

18.2145 meters

Explanation:

Using the conservation of momentum, we have that:

m1v1 + m2v2 = m1'v1' + m2'v2'

m1 = m1' is the mass of the astronaut, m2=m2' is the mass of the satellite, v1 and v2 are the inicial speed of the astronaut and the satellite (v1 = v2 = 0), and v1' and v2' are the final speed of the astronaut and the satellite. Then we have that:

0 + 0 = 91*v1' + 1300*0.17

v1' = -1300*0.17/91 = -2.4286\ m/s

The negative sign of this speed just indicates the direction the astronaut goes, which is the opposite direction of the satellite.

If the astronaut takes 7.5 seconds to come into contact with the shuttle, their initial distance is:

distance = 2.4286 * 7.5 = 18.2145\ meters

8 0
3 years ago
What is a variable that gives location relative to an origin?
AysviL [449]
The variable would be “X”
4 0
3 years ago
Read 2 more answers
a body is moving with uniform acceleration, has initial velocity 45km/hr. and acceleration 20cm/s^2. find its velocity after 25
Eddi Din [679]
That’s hard wow!!!!!!
7 0
3 years ago
Other questions:
  • What must the charge (sign and magnitude) of a particle of mass 1.49 g be for it to remain stationary when placed in a downward-
    15·1 answer
  • Which researcher first realized that certain psychic secretions pointed to a simple but important form of learning
    11·1 answer
  • During the developing of a TLC plate, it is common to place a cover on the chromatography chamber and have a piece of moist filt
    8·1 answer
  • 1. A tourist accidentally drops a camera from a 40.0 m high bridge and it falls for 2.85 seconds. If g = 9.81 m/s2 and air resis
    10·1 answer
  • Figure 23.9 shows a sliding mass on a spring. Assume there is no friction.
    15·1 answer
  • 0.6% of 36 = ? Please answer today This is due tomorrow!,​
    15·1 answer
  • The big bang produced an imprint of leftover heat called _____. hydrogen cosmic heat CMB radiation redshift
    5·2 answers
  • Find the radius to which the sun must be compressed for it to become a black hole.
    14·1 answer
  • What property of objects is best measured by their capacitance?
    11·1 answer
  • A camera employs _lens to form_images ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!