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Explain how an action potential is generated

At rest the neuron has a charge of -70mV, this is called the resting membrane potential and is caused by different concentrations of ions inside and out of the cell. At rest, potassium ions accumulate ins...

CS
Answered by Charlotte S. Biology tutor
3668 Views

integral of xe^-x dx

Using integration by parts by letting u=x and dv/dx=e^-x. this implies that du/dx=1 and v=-e^-xThe By Parts formulae is u.v - integral(v.du/dx) = -xe^-x - in...

BK
Answered by Brandon K. Maths tutor
6420 Views

Why did Communist Russia win the Russian Civil War?

When assessing this question, it is worth taking into account the natural resources and geographic factors which gave Lenin's government an inherent advantage. A good starting point for this is that the t...

DR
Answered by Daniel R. History tutor
3026 Views

Why is EPQ important, and how do I manage my time to make sure I don't fall behind with other subjects?

The extended project qualification is incredibly important, and more universities are beginning to recognise it. I highly recommend the EPQ because it teaches you many skills which are vital at university...


How do I form the subjunctive and when is it used?

The subjunctive verb form is what is called a 'mood' - it is not a tense like the passé composée or the imparfait, but it is used to indicate feelings, thoughts, doubts and anything that is subjective in ...

MJ
Answered by Millie J. French tutor
1860 Views

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