The membrane that surrounds a certain type of living cell, Ask an Expert

Academics

The membrane that surrounds a certain type of living cell has a surface area of 5.37 x 10^-9 m² and a thickness of 0.89 x 10^-8 m. Assume that the membrane behaves like a parallel plate capacitor and has a dielectric constant of 4.6.

(a) If the potential on the outer surface of the membrane is +71.6 mV greater than that on the inside surface, how much charge resides on the outer surface?

(b) If the charge in part (a) is due to K+ ions (charge +e), how many such ions are present on the outer surface?

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91020349

Have any Question?Write your Review or question?

Related Questions in Physics

Question the position of a 275 x 105n training helicopter

Question: The position of a 2.75 x 10 5 N training helicopter under test is given by r? = (0.020 m/s3) t3i^ + (2.2m/s)tj^ ?(0.060m/s2)t2k^. Part A: Find the net force on the helicopter at t = 5.0s. Express your answer in ...

Question a spherical balloon has a radius of 695m and is

Question: A spherical balloon has a radius of 6.95m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of air is 1.29 kg/m3. The skin and structure of the balloon has a mass of 960kg . Negle ...

Question a projectile is fired with an initial speed of

Question: A projectile is fired with an initial speed of 30m/s at an angle of60 deg above the horizontal. The object hits the ground 7.5slater. a) How much higher or lower is the launch point relative to thepoint where t ...

Question a semicircle of radius a is in the first and

Question: A semicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. Positive charge +Q is distributed uniformly around the left half of the semicircle, and negative charge ...

Additional problem 1unpolarized light passes through two

ADDITIONAL PROBLEM 1 Unpolarized light passes through two polarizers whose transmission axes are at an angle # with respect to each other. What should be the angle # between the transmission axes of the polarizers if it ...

Reactions with little or no activation energy are the

Reactions with little or no activation energy are the least affected by temperature. Why? If the reaction had NO activation energy would it be affected at all by temperature?

A high-speed train is built to be 600 m long the train is

A high-speed train is built to be 600 m long. The train is passing through a 500 m long tunnel. a. At what speed, according to an observer on the ground, the train will be just completely covered by the tunnel at one ins ...

Can you please help me figure out what to do in this

Can you please help me figure out what to do in this equation and why? While passing between Earth & Moon, a spacecraft is located on line connecting centers of two bodies and is at a distance of d=102km from radio anten ...

How are chemical and physical changes different what are

How are chemical and physical changes different. What are some demonstrations that you might do to help your students differentiate between a chemical and physical change?

A bullet is shot straight up into air from ground it

A bullet is shot straight up into air from ground. It reaches maximum height = 757m. Calculate initial speed of bullet in m/s & using the results calculate total flight time t in seconds until the bullet reached the grou ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert