Anerve signal is transmitted through a neuron when an excess of na+ ions suddenly enters the axon, a long cylindrical part of the neuron. axons are approximately 10.0 μm in diameter, and measurements show that about 5.60×1011 na+ions per meter (each of charge +e) enter during this process. although the axon is a long cylinder, the charge does not all enter everywhere at the same time. a plausible model would be a series of nearly point charges moving along the axon. let us look at a 0.100 mm length of the axon and model it as a point charge.

1) what electric field (magnitude and direction) does the sudden influx of charge produce at the surface of the body if the axon is 5.00 cm below the skin? note that distance to the skin is much greater than the length of the charged axon so that the axon charge is effectiely point-like.,
2) if the charge that enters each meter of the axon gets distributed uniformly along it, how many coulombs of charge enter a 0.100 mm length of the axon? answer in c

3) the field is directed away from the axon or the field is directed into the axon

1.611008 N/C

away

Explanation:

n = Number of charge =

q = Charge of particle =

Gap =

r = Distance = 5 cm

The charge is given by

Charge entering axon is

Electric field is given by

The electric field is 1.611008 N/C

The charges in the question are all positive so the electric field is directed away from the axon

relativism, roughly put, is the view that truth and falsity, right and wrong, standards of reasoning, and procedures of justification are products of differing conventions and frameworks of assessment and that their authority is confined to the context giving rise to them. more precisely, “relativism” covers views which maintain that—at a high level of abstraction—at least some class of things have the properties they have (e.g., beautiful, morally good, epistemically justified) not simpliciter, but only relative to a given framework of assessment (e.g., local cultural norms, individual standards), and correspondingly, that the truth of claims attributing these properties holds only once the relevant framework of assessment is specified or supplied. relativists characteristically insist, furthermore, that if something is only relatively so, then there can be no framework-independent vantage point from which the matter of whether the thing in question is so can be established.

relativism has been, in its various guises, both one of the most popular and most reviled philosophical doctrines of our time. defenders see it as a harbinger of tolerance and the only ethical and epistemic stance worthy of the open-minded and tolerant. detractors dismiss it for its alleged incoherence and uncritical intellectual permissiveness. debates about relativism permeate the whole spectrum of philosophical sub-disciplines. from ethics to epistemology, science to religion, political theory to ontology, theories of meaning and even logic, philosophy has felt the need to respond to this heady and seemingly subversive idea. discussions of relativism often also invoke considerations relevant to the very nature and methodology of philosophy and to the division between the so-called “analytic and continental” camps in philosophy. and yet, despite a long history of debate going back to plato and an increasingly large body of writing, it is still difficult to come to an agreed definition of what, at its core, relativism is, and what philosophical import it has. this entry attempts to provide a broad account of the many ways in which “relativism” has been defined, explained, defended and criticized.

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answer: good job it's all correct !

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