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.
What the wavelength will be depends on what the speed of the wave is. Take a simple example: the frequency is 5 cycles per second and the velocity is 10 meters per second. Then the wavelength will be the distance the wave travels in one cycle (called the period) which is, in this case, 1/5 of a second.uppose that the speed of the arrow is 100 m/s and the target is 100 m away. Then the time it takes to go the first half way is 1/2 s, the second half time takes 1/4 s, the third half time takes 1/8 s, etc. So the total time it takes is the infinite series (1/2+1/4+1/8+1/16+1/32+).