Answered: What is the electric field strength

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)...

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Can you help with 4a and 4b

The voltage across the membrane forming a (Biological) cell wall is about 74 mV and the membrane is about 8.7 nm thick.

4a. What is the electric field strength? (The value is surprisingly large, but correct.) You may assume a uniform electric field.

4b. Lots of things move in and out of cells. One of the simplest things to consider is a (singly ionized) Sodium Ion, Na+. What's the minimum amount of energy (in Joules) needed to move an Na+ ion "the hard way" across the membrane?

this is not and will not be graded

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