QUIZ EM

Wheel nuts can be made of:

Aluminium

Steel

Iron

Carbon nitride

In an aerodynamic profile located in an air current, the transition of the boundary layer can be delayed by;

A. Increasing the roughness of the surface.

b. Increasing the area where local acceleration is positive.

c. Increasing the turbulence of the current.

d. Increasing the pressure of the current.

We want to do an essay in an innovative cooling system, using the venturi of the figure where air circulates in the atmosphere by section 2, to raise paint from a container r. Not considering the loss of load, determine from what flow of air, in liters / second, will beginvto arrive to the venturi. D1 = D2 = 0.1m, Dgola = 0.02m, h = 20 cm, air (density 1.2 kg / m3, viscosity 10-5 m2 / s), paint (density 1300 kg / m3, viscosity 10-2 m2 / s) ,

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