15. Determine the cross-sectional diameter of a capillary viscometer 5 cm long if 3 ml of a Newtonian fluid with a viscosity of 1 * 10-3 Pa * s flow through it under a pressure of 100 N / m2 in 61 s.
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.