1. The problem statement, all variables and given/known data Reynolds number and the turbulence of trachael air flow under the conditions of normal activity an adult inhales about 1.1l of air during each inhalation. using a stop watch, dTErmine the time for one of your own inhalations and hence estimate the volume flow in m^3/s through your trachea during inhalation. The diameter of the trachea is appx 25mm. 2. Relevant equations 3. The attempt at a solution I converted 25mm to m = 0.025m 1.1l = 0.001 meters^3 I just cant seem to get the right "inahlation using a stopwatch". I used 0.3m^3/s but that didnt seem to be right at all. Can anyone help me? What is a reasonable vallue for this??