Sl units of dynamic viscosty are: Ns/m2

! Required information The dynamic viscosity of air at 20°C is u≈ 1.80E-5 Pa-s. Estimate the viscosity of air at various temperatures by the below mentioned methods. Determine the viscosity of air at 500°C by the Law of Corresponding States. E-5 kg/(m.s)

f. A study of the physical characteristic of honey was conducted due to the large demand of royal jelly. A capillary tube viscometer was used by a researcher in determining the viscosity of the honey. The viscometer is 250 mm long with an outside diameter of 55mm and effective thickness of 2.5mm and was used horizontally so that the effect of gravity was neglected. At an ambient temperature of 30°C the following data were collected: Q (cc/s) 1.25 1.55 1.80 2.05 ДР (Ра) 10.0 12.5 15 17.5 20.0 2.55 What will be the stress produced per unit length in the tube used in the production of royal jelly if it has a radius of 5mm and a flow of 1 capsule per second. (1 capsule = 0.85 cc of royal jelly).

Please solve in simplest terms