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The action potential begins when the stimulus exceeds the threshold. - The voltage gated sodium ion channels open. - Sodium ions diffuse into the axon down an electrochemical gradient. - Positive feedback oc...

The hydrostatic force is a force exerted by a fluid on a submerged body. This force comes from the weight of the fluid acting down on the submerged body, so it can be derived from the equation weight (in thi...

Strong acids dissociate fully in solution. Examples of strong bases include HCl and H 2 SO4. Organic acids, such as methanoic acid or oxalic acid, as well as some inorganic acids such as hydrogen fluoride, a...

Lets use and example: y=x sin(x). If we try to integrate this normally, we find it very hard. The integration by parts method splits up the function we are integrating into manageable bits. The formula we us...

The first stage when a new drug is developed is to model how it is expected to behave in the human body, test animals and individual cells on a computer. This model is based on how similar drugs work, and ho...