A potential difference AV exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.50 × 10-20 J of work is required to eject a positive potassium ion (K*) from the interior of the cell, what is the magnitude of the potential difference (in millivolts) between the inner and outer surfaces of the cell? |AV| = mV

A potential difference AV exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.50 × 10-20 J of work is required to eject a positive potassium ion (K*) from the interior of the cell, what is the magnitude of the potential difference (in millivolts) between the inner and outer surfaces of the cell? |AV| = mV

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

The graph in the figure shows the variation of the electric potential V (measured in volts) as a function of the radial direction T (measured in meters), For which range or value of T is the magnitude of the electric field the largest? (m) O from r = 3 m to r= 4 m from T=0 m to r= 1 m from r = 1 m to r= 2 m O at r= 4 m O at r = 3 m from T = 6 m to r= 8 m O from T = 4 m to r= 6 m Submit Previous Answers Request Answer
Resources Give Up? Under certain circumstances, potassium ions (K†) in a cell will move across the cell membrane from the inside to the outside. The potential inside the cell is -75.5 mV and the potential outside the cell is zero. What is the change in the electrical potential energy of a single potassium ion as it moves across the membrane? change in potential energy: Does the potential energy of the potassium ions increase, decrease, or remain the same as the ions move from the inside to the outside? O decrease remain the same increase
A cylindrical capacitor consists of a solid inner conducting core with radius 0.270 cm, surrounded by an outer hollow conducting tube. The two conductors are separated by air, and the length of the cylinder is 13.0 cm. The capacitance is 39.0 pF. Part A: Calculate the inner radius of the hollow tube. r=__cm Part B: When the capacitor is charged to 135 V, what is the charge per unit length λ on the capacitor? λ=__C/m
Consider two points in an electric field. The potential at point 1, V1, is 48 V. The potential at point 2, V2, is 153 V. An electron at rest at point 1 is accelerated by the electric field to point 2. Part (a) Write an equation for the change of electric potential energy ΔU of the electron in terms of the symbols given. Part (b) Find the numerical value of the change of the electric potential energy in electron volts (eV). ΔU = Part (c) Express v2, the speed of the electron at point 2, in terms of ΔU, and the mass of the electron me. v2 = Part (d) Find the numerical value of v2 in m/s. v2 =
A potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.35 × 10-20 J of work is required to eject a positive sodium ion (Na+) from the interior of the cell, what is the magnitude of the potential difference between the inner and outer surfaces of the cell? magnitude of the potential difference:
A potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.25 x 10^-20 J of work is required to eject a positive sodium ion (Na+) from the interior of the cell, what is the magnitude of the potential difference between the inner and outer surfaces of the cell?
You are working in a laboratory, using very sensitive measurement equipment. Your supervisor has explained that the equipment is also very sensitive to electrical discharge from human operators. Specification tables for the equipment indicate that an electrical discharge providing even a very small amount of energy of 250 μJ is enough to damage the equipment. Your supervisor wants to install an apparatus that will be used to remove the electrical charge from individuals’ bodies before they touch the equipment. To do this, she asks you to estimate (a) the capacitance of the human body and determine (b) the charge on the body and (c) the electric potential of the body, relative to a point infinitely far away, corresponding to the energy transfer that will damage the equipment.
A potential difference of 75 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell?
An alpha particle, which has charge 3.204 ✕ 10−19 C, is moved from point A, where the electric potential is 2.30 ✕ 103 J/C, to point B, where the electric potential is 3.50 ✕ 103 J/C. Calculate the work in electron volts done by the electric field on the alpha particle.
11 of 35 > A potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 1.25 x 10-20 J of work is required to eject a positive sodium ion (Na+) from the interior of the cell, what is the magnitude of the potential difference between the inner and outer surfaces of the cell? magnitude of the potential difference:
A solid aluminum sphere with radius a has an explicitly negative charge,−q. Concentric with the aluminum sphere is a copper spherical shell with inner radius b, outer radius c, and an explicitly positive charge, +Q. Assume that the magnitude of the positive charge on the copper shell is greater than the magnitude of the negative charge on the aluminum sphere, and take the electric potential at infinity as zero. Enter an expression for the electric potential, V, that is valid for a
The linear load distribution with a length of 3L and given by A(x) = ax is placed along the x-axis as in the figure. Here a is a positive is fixed. What is the potential at y = 3L on the y-axis? A) kal(√5-√2) y B) kat(√17-√5) C) kal(√8-√5) 44- U D) kal(√20-√17) E) kal(√13-√10)