Damage may be a result of the direct effects of alcohol on the brain or may result indirectly, from a poor general health status or from severe liver disease. For example, thiamine deficiency is a common occurrence in people with alcoholism and results from poor overall nutrition.
In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction. On the diagram above, the distance from point A to point C or from point B to point D would be representative of the wavelength.
Using the formula we have period = . This graph shown below uses the WINDOW X: (-2, 4, 1) and Y: (-2, 2, 1). Notice that there are three complete waves in a distance along the x-axis of [4 - (-2)] = 6. The period can be seen from the graph as and the frequency equals. Using the formula we have. Allowing us to determine that the equation is. The WINDOW for the graph shown below is X: and Y: (-2, 2, 1). Although it is somewhat difficult to count the number of waves on this graph, there are a total of along the x-axis in a distance of. The function's period of can be determined by dividing: . Using the formula, we have. This allows us to write the requested function's equation as. The graph shown below uses a WINDOW of X: (-1.5, 4.5, 0.25) and Y: (-2, 2, 1).